3 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
4 for currently supported client and server kernel versions.
5 * Server primary kernels built and tested during release cycle:
6 3.10.0-1062.18.1.el7 (RHEL7.7)
7 3.10.0-1127.19.1.el7 (RHEL7.8)
8 3.10.0-1160.25.1.el7 (RHEL7.9)
9 * Other server kernels known to build and work at some point (others may also work):
10 3.10.0-862.14.4.el7 (RHEL7.5)
11 3.10.0-957.27.2.el7 (RHEL7.6)
12 4.18.0-80.11.2.el8 (RHEL8.0)
13 4.18.0-147.8.1.el8 (RHEL8.1)
14 4.18.0-193.28.1.el8 (RHEL8.2)
15 4.18.0-240.22.1.el8 (RHEL8.3)
16 4.4.120-92.70 (SLES12 SP2)
17 4.4.180-94.100 (SLES12 SP3)
18 4.4.0-131 (Ubuntu 16.04)
19 4.15.0-32 (Ubuntu 18.04)
20 5.4.0-48 (Ubuntu 20.04)
21 vanilla linux 5.4.0 (ZFS + ldiskfs)
22 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
23 * Client primary kernels built and tested during release cycle:
24 3.10.0-1062.18.1.el7 (RHEL7.7)
25 3.10.0-1127.19.1.el7 (RHEL7.8)
26 3.10.0-1160.25.1.el7 (RHEL7.9)
27 4.12.14-95.48 (SLES12 SP4)
28 4.12.14-122.63 (SLES12 SP5)
29 4.12.14-197.75 (SLES15 SP1)
30 5.3.18-24.52 (SLES15 SP2)
31 4.15.0-48 (Ubuntu 18.04)
32 * Other clients known to build on these kernels at some point (others may also work):
33 3.10.0-862.14.4.el7 (RHEL7.5)
34 3.10.0-957.27.2.el7 (RHEL7.6)
35 4.14.0-49.13.1.el7a (RHEL7.5)
36 4.14.0-115.2.2.el7a (RHEL7.6)
37 4.18.0-80.11.2.el8 (RHEL8.0)
38 4.18.0-147.8.1.el8 (RHEL8.1)
39 4.18.0-193.28.1.el8 (RHEL8.2)
40 4.18.0-240.22.1.el8 (RHEL8.3)
41 4.4.120-92.70 (SLES12 SP2)
42 4.4.180-94.100 (SLES12 SP3)
43 4.4.0-131 (Ubuntu 16.04)
44 5.4.0-37 (Ubuntu 20.04)
45 5.4.0 (vanilla kernel.org)
46 * Recommended e2fsprogs version: 1.45.6.wc5 or newer
47 * Recommended ZFS version: 2.0.0
48 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
49 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
50 stack overflow. For more information, please refer to bugzilla 17630.
51 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
52 the re-exporting nodes to be mounted with "32bitapi" mount option
54 --------------------------------------------------------------------------------
58 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
59 for currently supported client and server kernel versions.
60 * Server primary kernels built and tested during release cycle:
61 3.10.0-1062.18.1.el7 (RHEL7.7)
62 3.10.0-1127.19.1.el7 (RHEL7.8)
63 3.10.0-1160.6.1.el7 (RHEL7.9)
64 * Other server kernels known to build and work at some point (others may also work):
65 3.10.0-862.14.4.el7 (RHEL7.5)
66 3.10.0-957.27.2.el7 (RHEL7.6)
67 4.18.0-80.11.2.el8 (RHEL8.0)
68 4.18.0-147.8.1.el8 (RHEL8.1)
69 4.18.0-193.28.1.el8 (RHEL8.2)
70 4.18.0-240.1.1.el8 (RHEL8.3)
71 4.4.120-92.70 (SLES12 SP2)
72 4.4.180-94.100 (SLES12 SP3)
73 4.4.0-131 (Ubuntu 16.04)
74 4.15.0-32 (Ubuntu 18.04)
75 5.4.0-48 (Ubuntu 20.04)
76 vanilla linux 5.4.0 (ZFS + ldiskfs)
77 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
78 * Client primary kernels built and tested during release cycle:
79 3.10.0-1062.18.1.el7 (RHEL7.7)
80 3.10.0-1127.19.1.el7 (RHEL7.8)
81 3.10.0-1160.6.1.el7 (RHEL7.9)
82 4.12.14-95.48 (SLES12 SP4)
83 4.12.14-122.20 (SLES12 SP5)
84 4.12.14-197.75 (SLES15 SP1)
85 5.3.18-24.24 (SLES15 SP2)
86 4.15.0-48 (Ubuntu 18.04)
87 * Other clients known to build on these kernels at some point (others may also work):
88 3.10.0-862.14.4.el7 (RHEL7.5)
89 3.10.0-957.27.2.el7 (RHEL7.6)
90 4.14.0-49.13.1.el7a (RHEL7.5)
91 4.14.0-115.2.2.el7a (RHEL7.6)
92 4.18.0-80.11.2.el8 (RHEL8.0)
93 4.18.0-147.8.1.el8 (RHEL8.1)
94 4.18.0-193.28.1.el8 (RHEL8.2)
95 4.18.0-240.1.1.el8 (RHEL8.3)
96 4.4.120-92.70 (SLES12 SP2)
97 4.4.180-94.100 (SLES12 SP3)
98 4.4.0-131 (Ubuntu 16.04)
99 5.4.0-37 (Ubuntu 20.04)
100 5.4.0 (vanilla kernel.org)
101 * Recommended e2fsprogs version: 1.45.6.wc5 or newer
102 * Recommended ZFS version: 2.0.0
103 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
104 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
105 stack overflow. For more information, please refer to bugzilla 17630.
106 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
107 the re-exporting nodes to be mounted with "32bitapi" mount option
109 --------------------------------------------------------------------------------
113 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
114 for currently supported client and server kernel versions.
115 * Server primary kernels built and tested during release cycle:
116 3.10.0-1062.1.1.el7 (RHEL7.7)
117 * Other server kernels known to build and work at some point (others may also work):
118 3.10.0-862.14.4.el7 (RHEL7.5)
119 3.10.0-957.27.2.el7 (RHEL7.6)
120 4.18.0-80.7.1.el8 (RHEL8.0)
121 4.4.120-92.70 (SLES12 SP2)
122 4.4.180-94.100 (SLES12 SP3)
123 4.4.0-131 (Ubuntu 16.04)
124 4.15.0-32 (Ubuntu 18.04)
125 vanilla linux 4.6.7 (ZFS only)
126 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
127 * Client primary unpatched kernels built and tested during release cycle:
128 3.10.0-1062.1.1.el7 (RHEL7.7)
129 4.12.14-95.29 (SLES12 SP4)
130 4.15.0-48 (Ubuntu 18.04)
131 * Other clients known to build on unpatched kernels at some point (others may also work):
132 3.10.0-862.14.4.el7 (RHEL7.5)
133 3.10.0-957.27.2.el7 (RHEL7.6)
134 4.14.0-49.13.1.el7a (RHEL7.5)
135 4.14.0-115.2.2.el7a (RHEL7.6)
136 4.18.0-80.7.1.el8 (RHEL8.0)
137 4.4.120-92.70 (SLES12 SP2)
138 4.4.180-94.100 (SLES12 SP3)
139 4.4.0-131 (Ubuntu 16.04)
140 vanilla linux 4.15.0 (ZFS only)
141 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
142 * Recommended ZFS / SPL version: 0.7.13
143 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
144 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
145 stack overflow. For more information, please refer to bugzilla 17630.
146 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
147 the re-exporting nodes to be mounted with "32bitapi" mount option
148 * Note for Ubuntu 14.04.5:
149 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
150 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
152 --------------------------------------------------------------------------------
156 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
157 for currently supported client and server kernel versions.
158 * Server known to build on the following kernels (others may also work):
159 2.6.32-696.18.7.el6 (RHEL6.9)
160 3.10.0-862.14.4.el7 (RHEL7.5)
161 3.10.0-957.el7 (RHEL7.6)
162 4.4.120-92.70 (SLES12 SP2)
163 4.4.162-94.69 (SLES12 SP3)
164 4.4.0-131 (Ubuntu 16.04)
165 4.15.0-32 (Ubuntu 18.04)
166 vanilla linux 4.6.7 (ZFS only)
167 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
168 * Client known to build on unpatched kernels (others may also work):
169 2.6.32-696.18.7.el6 (RHEL6.9)
170 2.6.32-754.6.3.el6 (RHEL6.10)
171 3.10.0-862.14.4.el7 (RHEL7.5)
172 3.10.0-957.el7 (RHEL7.6)
173 4.14.0-49.13.1.el7a (RHEL7.5)
174 4.14.0-115.2.2.el7a (RHEL7.6)
175 4.4.120-92.70 (SLES12 SP2)
176 4.4.162-94.69 (SLES12 SP3)
177 4.4.0-131 (Ubuntu 16.04)
178 4.15.0-32 (Ubuntu 18.04)
179 vanilla linux 4.15.0 (ZFS only)
180 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
181 * Recommended ZFS / SPL version: 0.7.9
182 * Tested with ZFS / SPL version: 0.7.9
183 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
184 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
185 stack overflow. For more information, please refer to bugzilla 17630.
186 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
187 the re-exporting nodes to be mounted with "32bitapi" mount option
188 * Note for Ubuntu 14.04.5:
189 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
190 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
192 --------------------------------------------------------------------------------
194 2018-04-03 Intel Corporation
196 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
197 for currently supported client and server kernel versions.
198 * Server known to build on patched kernels:
199 2.6.32-431.29.2.el6 (RHEL6.5)
200 2.6.32-504.30.3.el6 (RHEL6.6)
201 2.6.32-573.26.1.el6 (RHEL6.7)
202 2.6.32-642.15.1.el6 (RHEL6.8)
203 2.6.32-696.18.7.el6 (RHEL6.9)
204 3.10.0-693.21.1.el7 (RHEL7.4)
205 3.0.101-0.47.71 (SLES11 SP3)
206 3.0.101-107 (SLES11 SP4)
207 3.12.74-60.64.40 (SLES12 SP1)
208 4.4.114-92.64 (SLES12 SP2)
209 4.4.114-94.11 (SLES12 SP3)
210 3.13.0-101 (Ubuntu 14.04, ZFS only)
211 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
212 4.4.0-116 (Ubuntu 16.04)
213 vanilla linux 4.6.7 (ZFS only)
214 * Client known to build on unpatched kernels:
215 2.6.32-431.29.2.el6 (RHEL6.5)
216 2.6.32-504.30.3.el6 (RHEL6.6)
217 2.6.32-573.26.1.el6 (RHEL6.7)
218 2.6.32-642.15.1.el6 (RHEL6.8)
219 2.6.32-696.18.7.el6 (RHEL6.9)
220 3.10.0-693.21.1.el7 (RHEL7.4)
221 3.0.101-0.47.71 (SLES11 SP3)
222 3.0.101-107 (SLES11 SP4)
223 3.12.74-60.64.40 (SLES12 SP1)
224 4.4.114-92.64 (SLES12 SP2)
225 4.4.114-94.11 (SLES12 SP3)
226 3.13.0-101 (Ubuntu 14.04)
227 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
228 4.4.0-116 (Ubuntu 16.04)
230 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
231 * Recommended ZFS / SPL version: 0.7.6
232 * Tested with ZFS / SPL version: 0.7.6
233 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
234 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
235 stack overflow. For more information, please refer to bugzilla 17630.
236 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
237 the re-exporting nodes to be mounted with "32bitapi" mount option
238 * Note for Ubuntu 14.04.5:
239 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
240 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
242 --------------------------------------------------------------------------------
244 2017-07-05 Intel Corporation
246 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
247 for currently supported client and server kernel versions.
248 * Server known to build on patched kernels:
249 2.6.32-431.29.2.el6 (RHEL6.5)
250 2.6.32-504.30.3.el6 (RHEL6.6)
251 2.6.32-573.26.1.el6 (RHEL6.7)
252 2.6.32-642.15.1.el6 (RHEL6.8)
253 2.6.32-696.3.1.el6 (RHEL6.9)
254 3.10.0-514.21.1.el7 (RHEL7.3)
255 3.0.101-0.47.71 (SLES11 SP3)
256 3.0.101-100 (SLES11 SP4)
257 3.12.74-60.64.40 (SLES12 SP1)
258 4.4.59-92.17 (SLES12 SP2)
259 vanilla linux 4.6.7 (ZFS only)
260 * Client known to build on unpatched kernels:
261 2.6.32-431.29.2.el6 (RHEL6.5)
262 2.6.32-504.30.3.el6 (RHEL6.6)
263 2.6.32-573.26.1.el6 (RHEL6.7)
264 2.6.32-642.15.1.el6 (RHEL6.8)
265 2.6.32-696.3.1.el6 (RHEL6.9)
266 3.10.0-514.21.1.el7 (RHEL7.3)
267 3.0.101-0.47.71 (SLES11 SP3)
268 3.0.101-100 (SLES11 SP4)
269 3.12.74-60.64.40 (SLES12 SP1)
270 4.4.59-92.17 (SLES12 SP2)
272 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
273 * Recommended ZFS / SPL version: 0.6.5.9
274 * Tested with ZFS / SPL version: 0.6.5.9
275 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
276 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
277 stack overflow. For more information, please refer to bugzilla 17630.
278 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
279 the re-exporting nodes to be mounted with "32bitapi" mount option
281 --------------------------------------------------------------------------------
283 12-07-2016 Intel Corporation
285 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
286 for currently supported client and server kernel versions.
287 * Server known to build on patched kernels:
288 2.6.32-431.29.2.el6 (RHEL6.5)
289 2.6.32-504.30.3.el6 (RHEL6.6)
290 2.6.32-573.26.1.el6 (RHEL6.7)
291 2.6.32-642.11.1.el6 (RHEL6.8)
292 3.10.0-514.el7 (RHEL7.3)
293 3.0.101-0.47.71 (SLES11 SP3)
294 3.0.101-80 (SLES11 SP4)
295 3.12.62-60.64.8 (SLES12 SP1)
296 vanilla linux 4.5.7 (ZFS only)
297 * Client known to build on unpatched kernels:
298 2.6.32-431.29.2.el6 (RHEL6.5)
299 2.6.32-504.30.3.el6 (RHEL6.6)
300 2.6.32-573.26.1.el6 (RHEL6.7)
301 2.6.32-642.11.1.el6 (RHEL6.8)
302 3.10.0-514.el7 (RHEL7.3)
303 3.0.101-0.47.71 (SLES11 SP3)
304 3.0.101-80 (SLES11 SP4)
305 3.12.62-60.64.8 (SLES12 SP1)
307 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
308 * Recommended ZFS / SPL version: 0.6.5.8
309 * Tested with ZFS / SPL version: 0.6.5.8
310 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
311 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
312 stack overflow. For more information, please refer to bugzilla 17630.
313 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
314 the re-exporting nodes to be mounted with "32bitapi" mount option
316 --------------------------------------------------------------------------------
318 02-29-2016 Intel Corporation
320 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
321 for currently supported client and server kernel versions.
322 * Server known to build on patched kernels:
323 2.6.32-431.29.2.el6 (RHEL6.5)
324 2.6.32-504.30.3.el6 (RHEL6.6)
325 2.6.32-573.12.1.el6 (RHEL6.7)
326 3.10.0-327.3.1.el7 (RHEL7.2)
327 3.0.101-0.47.71 (SLES11 SP3)
328 3.0.101-68 (SLES11 SP4)
329 vanilla linux 4.2.1 (ZFS only)
330 * Client known to build on unpatched kernels:
331 2.6.32-431.29.2.el6 (RHEL6.5)
332 2.6.32-504.30.3.el6 (RHEL6.6)
333 2.6.32-573.12.1.el6 (RHEL6.7)
334 3.10.0-327.3.1.el7 (RHEL7.2)
335 3.0.101-0.47.71 (SLES11 SP3)
336 3.0.101-68 (SLES11 SP4)
339 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
340 * Recommended ZFS / SPL version: 0.6.4.2
341 * Tested with ZFS / SPL version: 0.6.4.2
342 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
343 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
344 stack overflow. For more information, please refer to bugzilla 17630.
345 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
346 the re-exporting nodes to be mounted with "32bitapi" mount option
348 --------------------------------------------------------------------------------
350 03-10-2015 Intel Corporation
352 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
353 for currently supported client and server kernel versions.
354 * Server known to build on patched kernels:
355 2.6.32-431.29.2.el6 (RHEL6.5)
356 2.6.32-504.8.1.el6 (RHEL6.6)
357 3.0.101-0.46 (SLES11 SP3)
358 * Client known to build on unpatched kernels:
359 2.6.32-431.29.2.el6 (RHEL6.5)
360 2.6.32-504.8.1.el6 (RHEL6.6)
361 3.10.0-123.20.1.el7 (RHEL7)
362 3.0.101-0.46 (SLES11 SP3)
363 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
364 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
365 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
366 stack overflow. For more information, please refer to bugzilla 17630.
367 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
368 the re-exporting nodes to be mounted with "32bitapi" mount option
370 Severity : enhancement
372 Description: control OST-index in IDIF via ROCOMPAT flag.
373 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
374 last_rcvd file. For new formatted OST device, it will be auto set;
375 for the case of upgrading from old OST device, you can enable it
376 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
377 enabled, for new created OST-object, its IDIF-in-LMA will contain
378 the OST-index; for the existing OST-object, the OSD will convert
379 old format IDIF as new format IDIF with OST-index stored in the
380 LMA EA when accessing such OST-object or via OI scrub. Once such
381 flag is enabled, it cannot be reverted back, so the system cannot
382 be downgraded to the orignal incompatible version.
384 --------------------------------------------------------------------------------
386 07-30-2014 Intel Corporation
388 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
389 for currently supported client and server kernel versions.
390 * Server known to build on patched kernels:
391 2.6.32-431.20.3.el6 (RHEL6.5)
392 3.0.101-0.31 (SLES11 SP3)
393 * Client known to build on unpatched kernels:
394 2.6.32-431.20.3.el6 (RHEL6.5)
395 3.0.101-0.31 (SLES11 SP3)
398 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
399 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
400 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
401 stack overflow. For more information, please refer to bugzilla 17630.
402 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
403 the re-exporting nodes to be mounted with "32bitapi" mount option
405 --------------------------------------------------------------------------------
407 10-31-2013 Intel Corporation
409 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
410 * Server builds for kernels:
411 2.6.32-358.18.1.el6 (RHEL6.4)
412 * Client builds for unpatched kernels:
413 2.6.32-358.18.1.el6 (RHEL6.4)
414 3.0.92-0.8 (SLES11 SP3)
416 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
417 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
418 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
419 stack overflow. For more information, please refer to bugzilla 17630.
420 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
421 the re-exporting nodes to be mounted with "32bitapi" mount option
423 --------------------------------------------------------------------------------
425 05-30-2013 Intel Corporation
427 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
428 * Server builds for kernels:
429 2.6.32-358.6.2.el6 (RHEL6.4)
430 * Client builds for unpatched kernels:
431 2.6.32-358.6.2.el6 (RHEL6.4)
432 3.0.74-0.6.6 (SLES11 SP2)
434 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
435 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
436 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
437 stack overflow. For more information, please refer to bugzilla 17630.
438 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
439 the re-exporting nodes to be mounted with "32bitapi" mount option
441 --------------------------------------------------------------------------------
443 9-30-2012 Whamcloud, Inc.
445 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
446 * Server support for kernels:
447 2.6.32-279.5.1.el6 (RHEL6)
448 * Client support for unpatched kernels:
449 2.6.32-279.5.1.el6 (RHEL6)
451 2.6.18-238.19.1.el5 (RHEL5)
452 2.6.16.60-0.69.1 (SLES10)
453 * Recommended e2fsprogs version: 1.41.90.wc4
454 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
455 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
456 stack overflow. For more information, please refer to bugzilla 17630.
457 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
458 the re-exporting nodes to be mounted with "32bitapi" mount option
460 Severity : enhancement
462 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
464 Severity : enhancement
466 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
468 Severity : enhancement
470 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
472 Severity : enhancement
474 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
476 Severity : enhancement
478 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
480 --------------------------------------------------------------------------------
482 04-30-2012 Whamcloud, Inc.
484 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
485 * Server support for kernels:
486 2.6.32-220.4.2.el6 (RHEL6)
487 * Client support for unpatched kernels:
488 2.6.32-220.4.2.el6 (RHEL6)
490 2.6.18-238.19.1.el5 (RHEL5)
491 2.6.16.60-0.69.1 (SLES10)
492 * Recommended e2fsprogs version: 1.41.90.wc4
493 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
494 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
495 stack overflow. For more information, please refer to bugzilla 17630.
496 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
497 the re-exporting nodes to be mounted with "32bitapi" mount option
499 Severity : enhancement
501 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
503 Severity : enhancement
505 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
507 Severity : enhancement
509 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
511 Severity : enhancement
513 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
515 --------------------------------------------------------------------------------
517 09-30-2011 Whamcloud, Inc.
519 * Server support for kernels:
520 2.6.18-238.19.1.el5 (RHEL5)
521 2.6.32-131.6.1.el6 (RHEL6)
522 * Client support for unpatched kernels:
523 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
524 2.6.18-238.19.1.el5 (RHEL5)
525 2.6.32-131.6.1.el6 (RHEL6)
526 2.6.29.4-167.fc11 (FC11)
527 2.6.16.60-0.69.1 (SLES10)
529 * Recommended e2fsprogs version: 1.41.90.wc3
530 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
531 Lustre filesystem with 4K stack may cause a stack overflow. For more
532 information, please refer to bugzilla 17630.
533 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
534 mounted with "32bitapi" mount option
536 Severity : enhancement
537 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
539 Severity : enhancement
540 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
542 Severity : enhancement
543 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
546 Frequency : only with SLES10
548 Description: Use OFED "KMP" provided by Novell
549 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
550 Lustre is now built against this package. That means you need to
551 install the ofed-kmp package from Novell for the patchless client.
552 Note that the ofed-kmp that Novell ships may not exactly match the
553 kernel version but should still be compatible.
555 Severity : enhancement
557 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
558 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
560 --------------------------------------------------------------------------------
562 2010-07-15 Oracle, Inc.
564 * Server support for kernels:
565 2.6.18-164.11.1.el5 (RHEL 5)
566 2.6.18-164.11.1.0.1.el5 (OEL 5)
567 * Client support for unpatched kernels:
568 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
569 2.6.18-164.11.1.el5 (RHEL 5),
570 2.6.18-164.11.1.0.1.el5 (OEL 5)
571 2.6.16.60-0.42.8 (SLES 10),
573 2.6.29.4-167.fc11 (FC11)
574 * Recommended e2fsprogs version: 1.41.10-sun2
576 Severity : enhancement
578 Description: Distribute lfs_migrate script with lustre
579 Details : The lfs_migrate mentioned in the manual is now included in the
580 lustre tree in lustre/scripts and will distributed in lustre RPMs.
582 Severity : enhancement
584 Description: Failover nid list added to import proc file.
586 Severity : enhancement
588 Description: "som_preview" mount option required to use SOM
589 Details : The clients will need to use som_preview mount option
593 Description: Lustre does not do 1MB IOs to HW RAID
594 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
596 Severity : enhancement
598 Description: lfs quota output is not very convenient for awk/sed-parsing
599 Details : Some positions in lfs quota output table could be empty or
600 non-empty which made it hard to parse it with scripts, now
601 a dash is put instead of space where there is not supposed
606 Description: Update to OFED 1.5.1
607 Details : OFED 1.5.1 will be used in environments that don't use
608 vendor supplied OFED.
612 Description: Remove lnet. prefix from lctl params display
613 Details : Also renamed lnet.memused to lnet_memused to
618 Description: Use conf_param -d to remove permanant settings.
622 Description: Add list_param -R
623 Details : lctl list_param now supports recursive mode.
626 Bugzilla : 21829, 22312
627 Description: Fix llobdstat.
628 Details : 1. Now updating the write_bytes counter
629 2. Port script fixes from 1.8.
633 Description: decrease the usage of memory on clients.
634 Details : 1. On clients, recycle dentries and inodes unused.
635 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
640 Description: llobdstat fix and enhancement
641 Details : add a counter to set a limit to how many samples will be returned
642 fix a wildcard in the path to limit to obdfilter stats only
646 Description: lfs check only allowed for root
647 Details : Code cleanups and added a regresion test of non-root use of
652 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
653 Details : Fix hr->hr_index overload.
657 Description: Fix FIEMAP functionality.
661 Description: FC11 patchless client support added
665 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
666 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
670 Description: New acc-sm script and various test-framework enhancments.
674 Description: Previously landed patch was reverted.
678 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
682 Description: Add ldiskfs maxdirsize mount option.
686 Description: Fix mkfs.lustre support for 16TB LUNs.
690 Description: Print mmp_check_interval
691 Details : print mmp_check_interval and make it possible to abort
692 mount operation in case it takes too long.
696 Description: Add cascading_rw to lustre mpi tests.
700 Description: Store SOM data in EA.
701 Details : Also several SOM related cleanups.
705 Description: Add refcount to md_open_data
709 Description: Use refcount on lov_request_set to prevent memory corruption.
713 Description: Statahead: use parent dir's i_mutex for synchronization.
717 Description: loadgen improvements.
721 Description: Enable peer health detection in ksocklnd and ko2iblnd.
725 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
729 Description: Fix race on obd_devcie:md_stats
733 Description: Fix SLES 11 client builds.
734 Details : Resolved uninitalized pointer gcc warnings.
738 Description: Allow non-root access for "lfs check".
739 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
743 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
745 Severity : enhancement
747 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
748 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
752 Description: Sanity test_27p fails.
753 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
754 Sanity tests 27 were cleaned up and improved.
758 Description: Unify req format on client/servers
759 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
760 buffers and swabbers approach..
765 Description: drop join file stuff.
767 Severity : enhancement
769 Description: Add 2.6.27 and SLES11 (patchless client) support
773 Description: Fix in ptlrpc_expire_one_request() to print the signed time
776 Severity : enhancement
778 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
781 Severity : enhancement
783 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
785 Severity : enhancement
787 Description: correctly handle big reply message.
788 Details : send LNet event if reply is bigger than buffer and adjust this buffer
793 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
795 Severity : enhancement
797 Description: Add support for OEL5.
801 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
803 Severity : enhancement
805 Description: "weak-modules" support
806 Details : Implement "weak-modules" support which enables kernel modules
807 to be used with any kernel that implements the same kABI. In
808 order to achieve this modules are now installed in
809 /lib/modules/$(uname -r)/updates/kernel on all distributions.
813 Description: client could not reconnect to OST because of an active request.
814 Details : The client now retries to reconnect to the same server, if a
815 connect request failed with EBUSY or -EAGAIN. Test case 35b
816 conf-sanity.sh has been created.
820 Description: Don't allow make backward step on assignin osc next id.
821 Details : race between allocation next id and ll_sync thread can be cause
822 of set wrong osc next id and can be kill valid ost objects.
826 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
830 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
834 Description: Error handling in osc_statfs_interpret() has been improved.
835 Details : Check in osc_statfs_interpret() for EBADR.
839 Description: Do not send statfs() requests to OSTs disabled by administrator.
840 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
842 Severity : enhancement
844 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
846 Severity : enhancement
848 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
850 Severity : enhancement
852 Description: Enhancement for lfs(1) command to use numeric uid/gid.
856 Description: Improved cleanup procedure for conf-sanity test_46a.
860 Description: Do not start bulk transfer, if client tried to reconnect.
861 Details : Do not start bulk transfer, if client tried to reconnect,
862 but failed due to active rpcs. Check for exp_abort_active_req
863 has been implemented.
867 Description: Prevent inconsistences between linux and lustre mount structures.
868 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
869 Make the sleep interruptible.
871 Severity : enhancement
873 Description: provide server to client comms path
874 Details : server to client communications path via new LDLM_SET_INFO rpc
878 Description: truncate starts GFP_FS allocation under transaction causing deadlock
879 Details : ldiskfs_truncate calls grab_cache_page which may start page
880 allocation under an open transaction. This may lead to
881 calling prune_icache with consequent lustre reentrance.
885 Description: send correctly lsm on open replay
886 Details : MDS is trust to LSM size on replay open, but client can set wrong size
891 Description: enable client interface failover
892 Details : When a child reconnects from another NID, properly update export
893 nid hash position and ldlm reverse import.
895 Severity : enhancement
897 Description: Communicate OST degraded/readonly state via statfs to MDS
898 Details : Flags in the statfs returned from OSTs indicate whether the
899 OST is in a degraded RAID state, or if the filesystem has
900 turned read-only after a filesystem error is detected.
905 Description: don't panic if EPROTO was hit when reading symlink
906 Details : correctly handling request reference in error cases.
908 Severity : enhancement
910 Description: Add LustreNetLink, a kernel-userspace communcation path.
912 Severity : enhancement
914 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
919 Description: access to llog context before init.
920 Details : move handling CATALOGS file at osc layer and forbid access to llog
924 Frequency : rare, only when client is writing to OST on local node
926 Description: Avoid deadlock for local client writes
927 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
928 memory freeing context. This allows OST threads to set the
929 PF_MEMALLOC flag on task structures in order to allocate memory
930 from reserved pools and complete IO.
931 Use GFP_HIGHUSER for OST allocations for non-local client writes,
932 so that the OST threads generate memory pressure and allow
933 inactive pages to be reclaimed.
935 Severity : enhancement
937 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
942 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
943 Details : move ldlm namespace creation in setup phase to avoid grab
944 _lprocfs_lock with cli_sem held.
948 Description: Temporarily disable grant shrink.
949 Details : Disable the feature for debugging.
952 Frequency : only when formatting test filesystems
954 Description: Unable to run several mkfs.lustre on loop devices at the same time
955 Details : mkfs.lustre returns error 256 on the concurrent loop devices
956 formatting. The solution is to proper handle the error.
958 Severity : enhancement
960 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
962 Severity : enhancement
964 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
969 Description: resolve race between obd_disconnect and class_disconnect_exports
970 Details : if obd_disconnect will be called to already disconnected export he
971 forget release one reference and osc module can't unloaded.
973 Severity : enhancement
975 Description: Allow tuning service thread via /proc
976 Details : For each service a new
977 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
978 created that can be used to set min/max thread counts, and get the
979 current number of running threads.
984 Descriptoin: don't return error if have partially created objects for file.
985 Details : lov_update_create_set uses set->set_success as index for created
986 objects, so if some requests will be failed, they will have hole
987 at end of array and qos_shrink_lsm for allocate correct lsm.
989 Severity : enhancement
991 Description: Update OFED support to 1.4.1
996 Description: Reduce small size read RPC
997 Details : Set read-ahead limit for every file and only do read-ahead when
998 available read-ahead pages are bigger than 1M to avoid small size
1001 Severity : enhancement
1003 Description: move AT tunable parameters for more consistent usage
1004 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
1006 Severity : enhancement
1008 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
1009 Details : allow skip disconnected ost for send statfs request and hide error
1015 Description: fix racy locking of mballoc block bitmaps causing BUG
1016 Details : The locking of the mballoc buddy bitmap and the in-memory
1017 block bitmap was using two different spin locks in some
1018 cases. This made it possible to incorrectly access the
1019 mballoc bitmap while another process was modifying it,
1020 causing a sanity assertion to fail. While no on-disk corruption
1021 was reported, there was some risk of this happening.
1024 Frequency : rare, on llog test 6
1026 Descriptoin: don't allow connect to already connected import
1027 Details : allowing connect to already connected import is hide connecting problem.
1032 Descriptoin: allow kill process which wait statahead result
1033 Details : for some reasons 'ls' can stick in waiting result from statahead,
1034 in this case need way for kill this process.
1036 Severity : enhancement
1038 Description: Add state history info file, enhance import info file
1039 Details : Track import connection state changes in a new osc/mdc proc file;
1040 add overview-type data to the osc/mdc import proc file.
1042 Severity : enhancement
1044 Description: MDS create should not wait for statfs RPC while holding DLM lock.
1046 Severity : enhancement
1048 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
1053 Descriptoin: OST grant too much space to client even there are not enough space.
1054 Details : Client will shrink its grant cache to OST if there are no write
1055 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
1056 this grant cache if there are already not enough avaible space
1057 (left_space < total_clients * 32M).
1060 Frequency : start MDS on uncleanly shutdowned MDS device
1062 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
1063 Details : stay in waiting mds<>ost recovery finished produce random bugs
1064 due race between two ll_sync thread for one lov target. send
1065 ACTIVATE event only if connect realy finished and import have
1069 Frequency : rare, connect and disconnect target at same time
1071 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1072 Details : don't call obd_disconnect under lov_lock. this long time
1073 operation and can block ptlrpcd which answer to connect request.
1078 Descriptoin: don't lose wakeup for imp_recovery_waitq
1079 Details : recover_import_no_retry or invalidate_import and import_close can
1080 both sleep on imp_recovery_waitq, but we was send only one wakeup
1084 Frequency : always with long access acl
1086 Descriptoin: mds can't pack reply with long acl.
1087 Details : mds don't control size of acl but they limited by reint/getattr
1090 Severity : enhancement
1092 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1094 Severity : enhancement
1096 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1099 Frequency : start MDS on uncleanly shutdowned MDS device
1101 Descriptoin: aborting recovery hang on MDS
1102 Details : don't throttle destroy RPCs for the MDT.
1105 Frequency : on remount
1107 Description: external journal device not working after the remount
1108 Details : clear dev_rdonly flag for external journal devices in
1114 Description: shutdown vs evict race
1115 Details : client_disconnect_export vs connect request race.
1116 if client will evicted at this time - we start invalidate
1117 thread without referece to import and import can be freed
1121 Frequency : rare, need acl's on inode.
1123 Description: client can't handle ost additional correctly
1124 Details : if ost was added after client connected to mds client can have
1125 hit lnet_try_match_md ... to big messages to wide striped files.
1126 in this case need teach client to handle config events about add
1127 lov target and update client max ea size at that event.
1129 Severity : enhancement
1131 Description: Changelogs
1132 Details : Changelogs are a lightweight mechanism to track filesystem
1133 metadata and namespace changes. The changelog is recorded
1134 permanently on the MDTs, and is periodically "consumed" / purged
1135 when records are no longer needed.
1137 Severity : enhancement
1139 Description: compact fld format with extents
1140 Details : Store range of seq rather than every seq in FLD. Seq
1141 controller update FLD rather than clients. In Case of CMD, mdt0
1142 has FLD, all other metadata server act as non persistent proxy
1143 for FLD queries and cache fld entries in fld cache.
1148 Description: don't skip ost target if they assigned to file
1149 Details : Drop slow OSCs if we can, but not for requested start idx.
1150 This means "if OSC is slow and it is not the requested
1151 start OST, then it can be skipped, otherwise skip it only
1152 if it is inactive/recovering/out-of-space.
1156 Description: more cleanup in mds_lov
1157 Details : not send LOV EA under replay, we can't know about they size at this
1158 time. Don't allow client connect to mds before any ost connected,
1159 for avoid problems with LOV EA size and returning EIO to client.
1161 Severity : enhancement
1163 Description: Interoperability at server side (Disk interoperability)
1165 Severity : enhancement
1167 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1169 Severity : enhancement
1171 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1173 Severity : enhancement
1175 Description: New client IO stack (CLIO).
1177 Severity : enhancement
1179 Description: Commit on sharing. Eliminate inter-client dependencies between
1180 uncommitted transactions by doing transaction commits.
1181 Thereby clients may recovery independently.
1184 Frequency : Create a symlink file with a very long name
1186 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1187 Details : If there is no extra space in the request for early cancels,
1188 ldlm_req_handles_avail() returns 0 instead of a negative value.
1190 Severity : enhancement
1192 Description: Add /proc entry for import status
1193 Details : The mdc, osc, and mgc import directories now have
1194 an import directory that contains useful import data for debugging
1195 connection problems.
1197 Severity : enhancement
1199 Description: Re-disable certain /proc logging
1200 Details : Enable and disable client's offset_stats, extents_stats and
1201 extents_stats_per_process stats logging on the fly.
1204 Frequency : Only on FC kernels 2.6.22+
1206 Description: oops in statahead
1207 Details : Do not drop reference count for the dentry from VFS when lookup,
1208 VFS will do that by itself.
1210 Severity : enhancement
1212 Description: Generic /proc file permissions
1213 Details : Set /Proc file permissions in a more generic way to enable non-
1214 root users operate on some /proc files.
1218 Description: Hitting mdc_commit_close() ASSERTION
1219 Details : Properly handle request reference release in
1220 ll_release_openhandle().
1224 Description: quota recovery deadlock during mds failover
1225 Details : This patch includes att18982, att18236, att18237 in bz14840.
1227 1. fix osts hang when mds does failover with quotaon
1228 2. prevent watchdog storm when osts threads wait for the
1233 Frequency : only patchless client
1234 Description: add workaround for race between add/remove dentry from hash
1236 Severity : enhancement
1238 Description: Allow OST glimpses to return PW locks
1242 Description: LBUG when llog conf file is full
1243 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1247 Description: Prevent import from entering FULL state when server in recovery
1251 Description: service mount cannot take device name with ":"
1252 Details : Only when device name contains ":/" will mount treat it as
1258 Description: replace ptlrpcd with the statahead thread to interpret the async
1259 statahead RPC callback
1263 Frequency : on recovery
1264 Description: I/O failures after umount during fail back
1265 Details : if client reconnected to restarted server we need join to recovery
1266 instead of find server handler is changed and process self
1267 eviction with cancel all locks.
1269 Severity : enhancement
1271 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1273 Severity : enhancement
1275 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1277 Severity : enhancement
1279 Description: Upcall on Lustre log has been dumped
1280 Details : Allow for a user mode script to be called once a Lustre log has
1281 been dumped. It passes the filename of the dumped log to the
1282 script, the location of the script can be specified via
1283 /proc/sys/lnet/debug_log_upcall.
1288 Description: avoid idr_remove called for id which is not allocated.
1289 Details : Move assigment s_dev for clustered nfs to end of initialization,
1290 to avoid problem with error handling.
1295 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1296 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1297 into CONN_USED_HASH and this prodice warning when put connection
1298 again in unused hash.
1301 Severity : enhancement
1303 Description: File striping can now be set to use an arbitrary pool of OSTs.
1305 Severity : enhancement
1307 Description: Export bytes_read/bytes_write count on OSC/OST.
1311 Description: Early reply size mismatch, MGC loses connection
1312 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1313 the connect flags are properly negotiated.
1318 Description: quotas are not honored with O_DIRECT
1319 Details : all writes with the flag O_DIRECT will use grants which leads to
1320 this problem. Now using OBD_BRW_SYNC to guard this.
1324 Description: add quota statistics
1325 Details : 1. sort out quota proc entries and proc code.
1326 2. add quota statistics
1328 Severity : enhancement
1330 Description: enable quota support for HEAD.
1334 Description: Properly propagate oinfo flags from lov to osc for statfs
1335 Details : restore missing copy oi_flags to lov requests.
1337 Severity : enhancement
1339 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1340 : l_getgroups(8), lst(8), routerstat(8)
1341 Details : included man pages for llobdstat(8), llstat(8),
1342 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1344 Severity : enhancement
1346 Description: configure's --enable-quota should check the
1347 : kernel .config for CONFIG_QUOTA
1348 Details : configure is terminated if --enable-quota is passed but
1349 : no quota support is in kernel
1353 Description: Remove portals compatibility
1354 Details : Remove portals compatibility, not interoperable with releases
1359 Description: Resolve device initialization race
1360 Details : Prevent proc handler from accessing devices added to the
1361 obd_devs array but yet be intialized.
1363 Severity : enhancement
1365 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1367 Severity : enhancement
1369 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1374 Description: Using wrong pointer in osc_brw_prep_request
1375 Details : Access to array[-1] can produce panic if kernel compiled with
1376 CONFIG_PAGE_ALLOC enabled
1380 Description: Client runs out of low memory
1381 Details : Consider only lowmem when counting initial number of llap pages
1385 Description: *optional* service tags registration
1386 Details : if the "service tags" package is installed on a Lustre node
1387 When the filesystem is mounted, a local-node service tag will
1388 be created. See http://inventory.sun.com/ for more information
1389 about the Service Tags asset management system.
1393 Description: Kernel BUG tries to release flock
1394 Details : Lustre does not destroy flock lock before last reference goes
1395 away. So always drop flock locks when client is evicted and
1396 perform unlock regardless of successfulness of speaking to MDS.
1400 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1404 Description: sanity test 65a fails if stripecount of -1 is set
1405 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1410 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1411 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1414 Severity : enhancement
1416 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1420 Description: do not process already freed flock
1421 Details : flock can possibly be freed by another thread before it reaches
1422 to ldlm_flock_completion_ast.
1426 Description: LBUG during stress test
1427 Details : Need properly lock accesses the flock deadlock detection list.
1431 Description: oops in page fault handler
1432 Details : kernel page fault handler can return two special 'pages' in error
1433 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1437 Description: timeout with invalidate import.
1438 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1439 should be handled by ptlrpcd. This produce long age waiting and
1440 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1442 Severity : enhancement
1444 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1448 Description: enable MGS and MDT services start separately
1449 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1450 a co-located MGS without starting the MGS, which is a complement
1451 to 'nosvc' mount option.
1455 Frequency : after recovery
1456 Description: precreate to many object's after del orphan.
1457 Details : del orphan st in oscc last_id == next_id and this triger growing
1458 count of precreated objects. Set flag LOW to skip increase count
1459 of precreated objects.
1463 Frequency : rare, on clear nid stats
1464 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1465 Details : when clean nid stats sometimes try destroy live entry,
1466 and this produce panic in free.
1470 Description: Stack overflow during MDS log replay
1471 ease stack pressure by using a thread dealing llog_process.
1475 Description: wait until IO finished before start new when do lock cancel.
1476 Details : VM protocol want old IO finished before start new, in this case
1477 need wait until PG_writeback is cleared until check dirty flag and
1478 call writepages in lock cancel callback.
1480 Severity : enhancement
1482 Description: using special macro for print time and cleanup in includes.
1486 Description: mds_mfd_close() ASSERTION(rc == 0)
1487 Details : In mds_mfd_close(), we need protect inode's writecount change
1488 within its orphan write semaphore to prevent possible races.
1492 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1496 Frequency : rare, on shutdown ost
1497 Description: don't hit live lock with umount ost.
1498 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1499 use shrink_dcache_sb instead.
1503 Description: don't panic with use echo client
1504 Details : echo client pass NULL as client nid pointer and this produce null
1505 pointer dereference.
1509 Description: fix build on ppc32
1510 Details : compile code with -m64 flag produce wrong object file for ppc32.
1514 Description: add message levels for liblustreapi
1518 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1519 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1520 will result in an -EAGAIN and in the exit call path we call
1521 alloc_rr() which will with increasing aggressiveness attempt to
1522 aquire precreated objects on the minimum number of required OSCs.
1526 Description: Use old size assignment to avoid deadlock
1527 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1528 the scheduling while holding a spinlock. We do not need locking
1529 for size in ll_update_inode() because size is only updated from
1530 the MDS for directories or files without objects, so there is no
1531 other place to do the update, and concurrent access to such inodes
1532 are protected by the inode lock.
1536 Description: resolve "_IOWR redefined" build error on SLES10
1540 Description: dump the memory debugging after all modules are unloaded to
1541 suppress false negative in conf_sanity test 39
1543 Severity : enhancement
1545 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1550 Description: fix SLES kernel versioning
1551 Details : the kernel version for our SLES 10 kernel did not include a "-"
1552 before the "smp" at the end. while this was not a problem in
1553 general, it did mean that software trying to use the kernel
1554 version to try to detect a vendor specific kernel would fail.
1555 this was most evident by the OFED build scripts.
1559 Description: Don't update lov_desc members until making sure they are valid
1560 Details : When updating lov_desc members via proc fs, need fix their
1561 validities before doing the real update.
1565 Description: don't put request into delay list while invalidate in flight.
1566 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1567 import in flight. this produce timeout for invalidate and sometimes
1568 can cause stale data.
1572 Frequency : on ppc only
1573 Description: not convert ost objects for directory because it's not exist.
1574 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1578 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1580 Severity : enhancement
1582 Description: Update to support 2.6.22.14 vanilla kernel.
1586 Frequency : rare, on recovery
1587 Description: read procfs can produce deadlock in some situation
1588 Details : Holding lprocfs lock which send rpc can produce block for destroy
1589 obd objects and this also block reconnect with -EALREADY. This
1590 isn't fix all lprocfs bugs - but make it rare.
1592 Severity : enhancement
1594 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1597 Frequency : frequent on X2 node
1599 Description: mdc_set_open_replay_data LBUG
1600 Details : Set replay data for requests that are eligible for replay.
1604 Description: lustre_mgs: operation 101 on unconnected MGS
1605 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1606 MGC, and late on MGC cannot successfully connect to MGS and a lot
1607 of the error messages complaining that MGS is not connected.
1611 Frequency : on network error
1612 Description: panic with double free request if network error
1613 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1614 but it's true only for synchronus enqueue, for async enqueue
1615 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1618 Severity : enhancement
1620 Description: client-side metadata stat-ahead during readdir(directory readahead)
1621 Details : perform client-side metadata stat-ahead when the client detects
1622 readdir and sequential stat of dir entries therein
1625 Frequency : on start mds
1627 Description: Implement get_info(last_id) in obdfilter.
1630 Frequency : occasional
1632 Description: Correctly check stale fid, not start epoch if ost not support SOM
1633 Details : open with flag O_CREATE need set old fid in op_fid3 because
1634 op_fid2 was overwritten with new generated fid, but mds can answer
1635 with one of these two fids and both is not stale. Setattr
1636 incorrectly started an epoch and assume will be called
1637 done_writing, but without SOM done_writing ever being called.
1640 Frequency : rare, depends on device drivers and load
1642 Description: MDS or OSS nodes crash due to stack overflow
1643 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1644 In some cases, in conjunction with device drivers that use a lot
1645 of stack the MDS (or possibly OSS) service threads could overflow
1646 the stack. One change which was identified to consume additional
1647 stack has been reworked to avoid the extra stack usage.
1650 Frequency : occasional
1652 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1653 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1654 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1655 oscc_has_objects and see OSC has no objests and call
1656 oscc_internal_create to resend create request.
1658 Severity : enhancement
1660 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1662 Severity : enhancement
1664 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1667 Frequency : very rare
1669 Description: Fix replay if there is an un-replied request and open
1670 Details : In some cases, older replay request will revert the
1671 mcd->mcd_last_xid on MDS which is used to record the client's
1672 latest sent request.
1674 Severity : enhancement
1676 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1678 Severity : enhancement
1680 Description: Add rhel5 support to HEAD.
1682 Serverity : enhancement
1684 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1689 Description: Don't allow skipping OSTs if index has been specified.
1690 Details : Don't allow skipping OSTs if index has been specified, make
1691 locking in internal create lots better.
1695 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1696 Details : access to bitfield in structure is always rounded to long
1697 and this produce problem with not atomic change any bit.
1701 Description: Lustre make rpms failed.
1702 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1703 builds Lustre rpms from tarball.
1706 Frequency : rare on shutdown ost
1708 Description: If llog cancel was not send before clean_exports phase, this can
1709 produce deadlock in llog code.
1710 Details : If llog thread has last reference to obd and call class_import_put
1711 this produce deadlock because llog_cleanup_commit_master wait when
1712 last llog_commit_thread exited, but this never success because was
1713 called from llog_commit_thread.
1717 Description: allow userland application know is lost one of stripes.
1718 Details : fill lvb_blocks with error code on ost and return it to
1719 application if error flag found.
1723 Description: NULL lov_tgts causing MDS oops
1724 Details : more safe checks for NULL lov_tgts for avoid oops.
1726 Severity : enhancement
1728 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1732 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1733 Details : If an OST is down the MDS will hang indefinitely in
1734 obd_statfs_rqset() waiting for the statfs data. While for
1735 MDS QOS usage of statfs, it should not stuck in waiting.
1737 Severity : enhancement
1739 Description: remote_acl support
1740 Details : Support ACL-based permission check for remote user.
1741 Support setfacl/getfacl for remote user with the utils
1742 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1743 the system "{s,g}etfacl" utils.
1745 Severity : enhancement
1747 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1749 Severity : enhancement
1751 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1755 Description: make mgs_setparam() handle fsname containing dash
1756 Details : fsname containing a dash does not work with lctl conf_param
1758 Severity : enhancement
1760 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1762 Severity : enhancement
1764 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1768 Frequency : rare, at shutdown
1769 Description: access already free / zero obd_namespace.
1770 Details : if client_disconnect_export was called without force flag set,
1771 and exist connect request in flight, this can produce access to
1772 NULL pointer (or already free pointer) when connect_interpret
1773 store ocd flags in obd_namespace.
1777 Frequency : only at startup
1778 Description: not alloc memory with spinlock held.
1779 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1780 if any spinlock held.
1782 Severity : enhancement
1784 Description: make lustre randomly fail allocating memory
1785 Details : Make lustre randomly failed allocating memory for testing purpose.
1787 Severity : enhancement
1789 Description: lost problems with lov objid file
1790 Details : Fixes some scability and access to not inited memory problems
1791 in work with lov objdid file.
1796 Description: lfs find does not continue on file error
1797 Details : Continue other files processing when a file/dir is absent.
1801 Description: Inconsistent usage of lustre_pack_reply()
1802 Details : Standardize the usage of lustre_pack_reply() such that it
1803 always generate a CERROR on failure.
1806 Frequency : occasional
1808 Description: MDS hang or stay in waiting lock
1809 Details : If client receive lock with CBPENDING flag ldlm need send lock
1810 cancel as separate rpc, to avoid situation when cancel request
1811 can't processed due all i/o threads stay in wait lock.
1815 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1819 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1823 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1827 Description: Update to RHEL4 latest kernel.
1829 Severity : enhancement
1831 Description: Build SLES10 patchless client fails
1832 Details : The configure was broken by run ./configure with
1833 --with-linux-obj=.... argument for patchless client. When the
1834 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1835 can't search header adequately. Use absolute path such as
1836 -I($LINUX)/include instead.
1840 Description: interrupt oig_wait produce painc on resend.
1841 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1842 private set, and this produce situation when rq_ptlrpcd_data not
1843 copyed to new allocated request and triggered LBUG on assert
1844 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1845 ptlrpcd set if request is changed and can be safety changed to use
1850 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1851 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1852 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1853 these macros and replace them with their difinitions instead.
1857 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1858 Details : Update which_patch & target file for SLES10 latest kernel.
1861 Description: Remove client patches from SLES 10 kernel.
1862 Details : This causes SLES 10 clients to behave as patchless clients
1863 even on a Lustre-patched (server) kernel.
1865 Severity : enhancement
1867 Description: self-adjustable client's lru lists
1868 Details : use adaptive algorithm for managing client cached locks lru
1869 lists according to current server load, other client's work
1870 pattern, memory activities, etc. Both, server and client
1871 side namespaces provide number of proc tunables for controlling
1874 Severity : enhancement
1876 Description: light-weight GSS support
1877 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1878 and reduce performance overhead.
1880 Severity : enhancement
1882 Description: Linux keyring support
1883 Details : Support using service of Linux keyring for Lustre GSS internal
1884 context refresh/cache mechanism.
1888 Description: Fix errors in lfs documentation
1889 Details : Fixes man pages
1893 Description: don't use GFP_* in generic Lustre code.
1894 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1898 Description: obdclass is limited by single OBD_ALLOC(idarray)
1899 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1903 Description: warnings with build patchless client with vanila 2.6.19 and up
1904 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1905 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1909 Frequency : Only for SLES
1910 Description: sanity_quota fail test_1
1911 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1912 file, which makes TSTID[2] inunique.
1916 Frequency : Only for SLES9
1917 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1918 Details : Update target/ChangeLog/which_patch .
1922 Frequency : Only for test_10 in sanity-quota.sh
1923 Description: a bug in quota test code
1924 Details : checking a test flag in a wrong place
1928 Frequency : Only for test_13 in sanity-quota.sh
1929 Description: a bug in quota test script
1930 Details : shouldn't check overfull allocated quota
1934 Description: jbd statistics
1935 Details : Port older jbd statistics patch for sles10
1937 Severity : enhancement
1939 Description: Add printing inode info into message about error in writepage.
1944 Description: reply_lock_interpret crash due to race with it and lock cancel.
1945 Details : Do not replay locks that are being cancelled. Do not reference
1946 locks by their address during replay, just by their handle.
1950 Frequency : When flocks are used.
1951 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1952 Details : Flock locks might destroy just granted lock if it could be merged
1953 with another existing flock, this is done in completion handler,
1954 so teach ldlm_cli_enquque_fini that this is a valid case for
1960 Description: Oops in read and write path when failing to allocate lock.
1961 Details : Check if lock allocation failed and return error back.
1965 Description: lstripe command fails for valid OST index
1966 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1967 instead of lov->desc.ld_active_tgt_count.
1971 Description: sanity.sh failed test 103
1972 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1977 Description: df doesn't work properly if diskfs blocksize != 4K
1978 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1982 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1983 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1985 Severity : enhancement
1987 Description: Adaptive timeouts
1988 Details : RPC timeouts adapt to changing server load and network
1989 conditions to reduce resend attempts and improve recovery time.
1993 Description: llapi_file_create() does not allow some changes
1994 Details : add llapi_file_open() that allows specifying the mode and
1995 open flags, and also returns an open file handle.
1999 Description: merge and cleanup kernel patches.
2000 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
2004 Description: Add journal checksum support.(Kernel part)
2005 Details : The journal checksum feature adds two new flags i.e
2006 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
2007 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
2008 indicates that the commit block contains the checksum for
2009 the blocks described by the descriptor blocks. Now commit
2010 record can be sent to disk without waiting for descriptor
2011 blocks to be written to disk. This behavior is controlled
2012 using JBD2_FEATURE_ASYNC_COMMIT flag.
2016 Description: OSS needs mutliple precreate threads
2017 Details : Add ability to start more than one create thread per OSS.
2021 Description: Sanity.sh test_65k failed: setstripe should have succeeded
2022 Details : execute lfs setstripe on client
2026 Description: mds_obd_create error creating tmp object
2027 Details : When the user sets quota on root, llog will be affected and can't
2028 create files and write files.
2031 Frequency : Always on ia64 patchless client, and possibly others.
2033 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
2034 Details : This allows the patchless client to be loaded on architectures
2035 without this export.
2039 Description: RedHat Update kernel for RHEL5
2040 Details : Add the kernel config file for RHEL5.
2044 Description: RedHat Update kernel for RHEL5
2045 Details : Modify the kernel config file more closer RHEL5.
2049 Description: Build failure against Centos5 (RHEL5)
2050 Details : Define PAGE_SIZE when it isn't present.
2054 Description: test_7 on sanity-quota.sh can't be used on separate machines
2055 Details : add facet to handle it
2059 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
2060 Details : with NFS, the anon dentry's parent was set to itself in
2061 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
2062 corresponding dentry other than use rec->ur_name.
2064 Severity : enhancement
2066 Description: lfs setstripe enhancement
2067 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2071 Description: enable data checksumming by default
2072 Details : enable checksum by default, allow --disable-checksum
2073 configure option and "-o nochecksum" mount option. Checksums
2074 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2078 Description: lustre support for RHEL5
2079 Details : Add support for RHEL5.
2083 Description: Client eviction due to failover config
2084 Details : after a connection loss, the lustre client should attempt to
2085 reconnect to the last active server first before trying the
2086 other potential connections.
2090 Description: when mds and osts use different quota unit(32bit and 64bit),
2091 quota will be released repeatly.
2092 Details : void sending multiple quota reqs to mds, which will keep the
2093 status between the reqs.
2097 Description: osts not allocated evenly to files
2098 Details : change the condition to increase offset_idx
2101 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2103 Description: Data corruption for OSTs that are formatted larger than 2TB
2105 Details : When generating the bio request for lustre file writes the
2106 sector number would overflow a temporary variable before being
2107 used for the IO. The data reads correctly from Lustre (which
2108 will overflow in a similar manner) but other file data or
2109 filesystem metadata may be corrupted in some cases.
2113 Description: Tune the kernel for good SCSI performance.
2114 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2115 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2120 Description: rewrite ext2-derived code in obdclass/uuid.c
2121 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2122 from scratch preserving functionality.
2126 Description: "lfs find -obd UUID" prints directories
2127 Details : "lfs find -obd UUID" will return all directory names instead
2128 of just file names. It is incorrect because the directories
2129 do not reside on the OSTs.
2133 Description: use i_size_read and i_size_write in 2.6 port
2134 Details : replace inode->i_size access with i_size_read/write()
2137 Frequency : when removing large files
2139 Description: scheduling issue during removal of large Lustre files
2140 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2141 It causes scheduling issues when removing large files (17TB in the
2145 Frequency : only with liblustre clients on XT3
2147 Description: evictions taking too long
2148 Details : allow llrd to evict clients directly on OSTs
2151 Frequency : only on ppc
2153 Description: /proc/fs/lustre/devices broken on ppc
2154 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2155 We should make sure the type of 'index' is loff_t and then cast
2156 explicitly as needed below. Do not assign an explicitly cast
2160 Frequency : only for rhel5
2162 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2163 Details : Modify the target file & which_kernel.
2165 Severity : enhancement
2167 Description: omit set fsid for export NFS
2168 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2169 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2173 Frequency : Always, for kernels after 2.6.16
2174 Description: Fix warning idr_remove called for id=.. which is not allocated.
2175 Details : Last kernels save old s_dev before kill super and not allow
2176 to restore from callback - restore it before call kill_anon_super.
2180 Description: buffer overruns could theoretically occur
2181 Details : llapi_semantic_traverse() modifies the "path" argument by
2182 appending values to the end of the origin string, and a
2183 overrun may occur. Adding buffer overrun check in liblustreapi.
2187 Description: Fix error on 'ls .' at the top of the Lustre mount.
2188 Details : Don't revalidate dentry if it is a root dentry.
2192 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2193 Details : Modify vm-tunables-rhel4.patch.
2197 Description: Kernel config for 2.6.18-vanilla.
2198 Details : Modify targets/2.6-vanilla.target.in.
2199 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2200 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2201 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2202 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2206 Description: improve handling recoverable errors
2207 Details : if request processig with error which can be recoverable on server
2208 request should be resend, otherwise page released from cache and
2213 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2214 Details : Modify target file & which_patch.
2215 A flaw was found in the IA32 system call emulation provided
2216 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2217 value could be stored in the %RAX register, which could trigger an
2218 out-of-bounds system call table access. An untrusted local user
2219 could exploit this flaw to run code in the kernel
2220 (ie a root privilege escalation). (CVE-2007-4573).
2224 Description: O_DIRECT bypasses client statistics.
2225 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2226 read_ahead_stats were updated. copied the stats section from
2227 osc_send_oap_rpc() into async_internal().
2231 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2235 Description: change order of libsysio includes
2236 Details : '#include sysio.h' should always come before '#include xtio.h'
2240 Description: handle "serious error: objid * already exists" more gracefully
2241 Details : If LAST_ID value on disk is smaller than the objects existing in
2242 the O/0/d* directories, it indicates disk corruption and causes an
2243 LBUG(). If the object is 0-length, then we should use the existing
2244 object. This will help to avoid a full fsck in most cases.
2246 Severity : enhancement
2248 Description: adapt the lustre_config script to support the upgrade case
2249 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2250 server targets to 1.6 in parallel.
2254 Description: To avoid grant space > avaible space when the disk is almost
2255 full. Without this patch you might see the error "grant XXXX >
2256 available" or some LBUG about grant, when the disk is almost
2258 Details : In filter_check_grant, for non_grant cache write, we should
2259 check the left space by if (*left > ungranted + bytes), instead
2260 of (*left > ungranted), because only we are sure the left space
2261 is enough for another "bytes", then the ungrant space should be
2262 increase. In client, we should update cl_avail_grant only there
2263 is OBD_MD_FLGRANT in the reply.
2267 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2268 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2269 described in CVE-2007-4573. This problem could allow untrusted
2270 local users to gain root access.
2273 Frequency : when using O_DIRECT and quotas
2275 Description: Incorrect file ownership on O_DIRECT output files
2276 Details : block usage reported by 'lfs quota' does not take into account
2277 files that have been written with O_DIRECT.
2282 Description: touch file failed when fs is not full
2283 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2284 otherwise we can get ENOSP while fs is not full.
2288 Description: parallel lock callbacks
2289 Details : Instead of sending blocking and completion callbacks as separated
2290 requests, adding them to a set and sending in parallel.
2293 Frequency : only for Cray XT3
2294 Bugzilla : 12829/13455
2295 Description: Changing primary group doesn't change the group lustre assigns to
2297 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2298 overridden with the primary group provided by the group upcall,
2299 whereas the supplied fsgid can be trusted if it is in the list of
2300 supplementary groups returned by the group upcall.
2302 Severity : enhancement
2304 Description: Allow masking D_WARNING, D_ERROR messages from console
2305 Details : Console messages can now be disabled via lnet.printk.
2309 Description: User code with malformed file open parameter crashes client node
2310 Details : Before packing join_file req, all the related reference should be
2311 checked carefully in case some malformed flags cause fake
2312 join_file req on client.
2316 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2317 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2318 mode is equal to the granted mode. However, it should also check
2319 that LDLM_FL_CP_REQD is not set.
2323 Description: Heavy nfs access might result in deadlocks
2324 Details : After ELC code landed, it is now improper to enqueue any mds
2325 locks under och_sem, because enqueue might want to decide to
2326 cancel open locks for same inode we are holding och_sem for.
2330 Description: Client eviction while running blogbench
2331 Details : A lot of unlink operations with concurrent I/O can lead to a
2332 deadlock causing evictions. To address the problem, the number of
2333 oustanding OST_DESTROY requests is now throttled to
2334 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2335 callbacks are processed in priority.
2339 Description: enable ACLs on MDS by default
2340 Details : ACLs must be enabled on MDS by default.
2343 Frequency : PPC/PPC64 only
2345 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2346 Details : fix duplicated definitions between asm-ppc64/types.h and
2347 lustre_types.h on PPC.
2350 Frequency : PPC/PPC64 only
2352 Description: asm-ppc/segment.h does not exist
2353 Details : fix compile issue on PPC.
2357 Description: better handle error messages in extents code
2360 Frequency : RHEL4 only
2362 Description: mkfs is very slow on IA64/RHEL4
2363 Details : A performance regression has been discovered in the MPT Fusion
2364 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2365 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2366 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2368 Severity : enhancement
2370 Description: SNMP support enhancement
2371 Details : Adding total number of sampled request for an MDS node in snmp
2374 Severity : enhancement
2376 Description: Optimize ldlm waiting list processing for PR extent locks
2377 Details : When processing waiting list for read extent lock and meeting read
2378 lock that is same or wider to it that is not contended, skip
2379 processing rest of the list and immediatelly return current
2380 status of conflictness, since we are guaranteed there are no
2381 conflicting locks in the rest of the list.
2385 Description: Time out and refuse to reconnect
2386 Details : When the failover node is the primary node, it is possible
2387 to have two identical connections in imp_conn_list. We must
2388 compare not conn's pointers but NIDs, otherwise we can defeat
2389 connection throttling.
2393 Description: port llog fixes from b1_6 into HEAD
2394 Details : Port llog reference couting and some llog cleanups from b1_6
2395 (bug 10800) into HEAD, for protect from panic and access to already
2396 free llog structures.
2400 Description: Detect stride IO mode in read-ahead
2401 Details : When a client does stride read, read-ahead should detect that and
2402 read-ahead pages according to the detected stride pattern.
2406 Description: data checksumming impacts single node performance
2407 Details : add support for several checksum algorithm. Currently, only CRC32
2408 and Adler-32 are supported. The checksum type can be changed on
2409 the fly via /proc/fs/lustre/osc/*/checksum_type.
2413 Description: use adler32 for page checksums
2414 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2419 Description: build for x2 fails
2420 Details : fix compile issue on Cray systems.
2424 Description: Properly match for duplicate locks
2425 Details : Due to different lock order from skiplists code, we need to
2426 traverse entire list for now
2429 Frequency : only on PPC/SLES10
2431 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2432 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2433 be defined. Add a hack in mkfs_lustre.c to work around this compile
2438 Description: LASSERT on MDS when client holding flock lock dies
2439 Details : ldlm pool logic depends on number of granted locks equal to
2440 number of released locks which is not true for flock locks, so
2441 just exclude such locks from consideration.
2445 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2446 Details : Use fsfilt_sync() for both the whole filesystem sync and
2447 individual file sync to eliminate dangerous inode locking
2448 with I_LOCK that can lead to a deadlock.
2452 Description: performance in 1.6.3
2453 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2454 sure that 1MB requests are not fragmented by the block layer.
2456 Severity : enhancement
2458 Description: organize the server-side client stats on per-nid basis
2459 Details : Change the structure of stats under obdfilter and mds to
2467 The "uuid"s file would list the uuids of _active_ exports.
2468 And the clear entry is to clear all stats and stale nids.
2470 Severity : enhancement
2472 Description: eliminate client locks in face of contention
2473 Details : file contention detection and lockless i/o implementation
2474 for contended files.
2478 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2481 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2483 Description: MDS may lose file striping (and hence file data) in some cases
2484 Details : If there are additional extended attributes stored on the MDS,
2485 in particular ACLs, SELinux, or user attributes (if user_xattr
2486 is specified for the client mount options) then there is a risk
2487 of attribute loss. Additionally, the Lustre file striping
2488 needs to be larger than default (e.g. striped over all OSTs),
2489 and an additional attribute must be stored initially in the
2490 inode and then increase in size enough to be moved to the
2491 external attribute block (e.g. ACL growing in size) for file
2496 Description: skiplist implementation simplification
2497 Details : skiplists are used to group compatible locks on granted list
2498 that was implemented as tracking first and last lock of each
2499 lock group the patch changes that to using doubly linked lists
2503 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2504 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2505 because LASSERT on both the data supplied by a client, and the
2506 data on disk is dangerous and incorrect.
2508 Severity : enhancement
2510 Description: Slow truncate/writes to huge files at high offsets.
2511 Details : Directly associate cached pages to lock that protect those pages,
2512 this allows us to quickly find what pages to write and remove
2513 once lock callback is received.
2517 Description: more ldlm soft lockups
2518 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2519 starve other threads from the resource lock for a long time in
2520 case of long waiting queue, so change the debug level from
2521 D_OTHER to the less frequently used D_INFO.
2523 Severity : enhancement
2525 Description: add -gid, -group, -uid, -user options to lfs find
2529 Description: Hung threads in invalidate_inode_pages2_range
2530 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2531 once one is completed. As a result, some RPCs are stuck in the
2532 queue and are never sent.
2536 Description: filter threads hungs on waiting journal commit
2537 Details : Cleanup filter group llog code, then only filter group llog will
2538 be only created in the MDS/OST syncing process.
2542 Description: Procfs and llog threads access destoryed import sometimes.
2543 Details : Sync the import destoryed process with procfs and llog threads by
2544 the import refcount and semaphore.
2546 Severity : enhancement
2548 Description: openlock cache of b1_6 port to HEAD
2553 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2554 Details : If insertion of an extent fails, then discard the inode
2555 preallocation and free data blocks else it can lead to duplicate
2560 Description: don't always update ctime in ext3_xattr_set_handle()
2561 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2562 In some cases the ctime should not be updated, for example for
2563 2.0->1.8 compatibility it is necessary to delete an xattr and it
2564 should not update the ctime.
2568 Bugzilla : 15713/16362
2569 Description: Assertion in iopen_connect_dentry in 1.6.3
2570 Details : looking up an inode via iopen with the wrong generation number can
2571 populate the dcache with a disconneced dentry while the inode
2572 number is in the process of being reallocated. This causes an
2573 assertion failure in iopen since the inode's dentry list contains
2574 both a connected and disconnected dentry.
2578 Description: assertion failure in ldlm_handle2lock()
2579 Details : fix a race between class_handle_unhash() and class_handle2object()
2580 introduced in lustre 1.6.5 by bug 13622.
2585 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2586 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2591 Description: oops in sd_iostats_seq_show()
2592 Details : unloading/reloading the scsi low level driver triggers a kernel
2593 bug when trying to access the sd iostat file.
2598 Description: Kernel panics during QLogic driver reload
2599 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2600 patch, causing memory corruption.
2605 Description: journal_dev option does not work in b1_6
2606 Details : pass mount option during pre-mount.
2608 Severity : enhancement
2610 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2611 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2612 extent information of a file. It can be used to map logical blocks
2613 in a file to physical blocks in the block device.
2617 Description: LDLM soft lockups - improvement
2618 Details : It is be possible to send the lock handle along with each read
2619 or write request because the client is already doing a lock match
2620 itself so there isn't any reason the OST should have to re-do that
2624 Frequency : only on Cray X2
2626 Description: X2 build failures
2627 Details : fix build failures on Cray X2.
2631 Description: xid & resent requests
2632 Details : Initialize RPC XID from clock at startup (randomly if clock is
2635 Severity : enhancement
2637 Description: Add lustre_start utility to start or stop multiple Lustre servers
2642 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2643 Details : In case of memory pressure, list_del() can be called twice on
2644 req->rq_history_list, causing a kernel oops.
2648 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2649 Details : fix stack overflow in the distributed lock manager by defering
2650 export eviction after a failed AST to the elt thread instead of
2651 handling it in the dlm interpret routine.
2655 Description: Convert some comments to new format.
2656 Details : Update documenting comments to match doxygen conventions.
2660 Description: Grammar fixes.
2661 Details : A couple of trivial spelling fixes.
2665 Description: OSD_COUNTERS-mandatory
2666 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2667 to simplify the code.
2671 Description: simplify cmm_device freeing logic.
2672 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2676 Description: Add lockdep support to dt_object_operations locking interface.
2677 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2678 parameter indicating lock ordering. Update mdd code to use new
2683 Description: Introduce failloc constants for lockless IO tests.
2684 Details : Add two new failloc constants to test lockless IO. Only one of
2685 them in implemented---another is checked in yet to be landed
2690 Description: Add lockdep support for inode mutex.
2691 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2692 in the situations where Lustre has to lock more than one inode
2697 Description: Add optional invariants checking support.
2698 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2699 configure switch. This macro is to be used for consistency and
2700 sanity checks that are too expensive to be left in `production'
2705 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2706 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2711 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2712 Details : Use spin_lock_nested() in (the only) situation where more than
2713 one ldlm_lock is locked simultaneously. Also, fix possible
2714 dead-lock in ldlm_lock_change_resource() by enforcing particular
2719 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2720 Details : Instead of specifying each ldlm_lock call-back through separate
2721 parameter, wrap them into struct ldlm_callback_suite.
2725 Description: Kill join_lru obd method and its callers.
2726 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2727 in memory---a requirement implemented through ->o_join_lru() obd
2728 method in HEAD. Remove this method and its users.
2732 Description: Add asynchronous ldlm ENQUEUE completion handler.
2733 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2734 case that stock ldlm_completion_ast() cannot handle as it waits
2735 until lock is granted. Introduce new ldlm_completion_ast_async()
2736 for this. Also comment ldlm_completion_ast().
2740 Description: ldlm_error <-> errno conversion.
2741 Details : Add functions to map (rather arbitrary) between LDLM error codes
2742 and standard errno values. CLIO needs this to prevent LDLM specific
2743 constants from escaping ldlm and osc.
2747 Description: Kill unused ldlm_handle2lock_ns() function.
2748 Details : Kill unused ldlm_handle2lock_ns() function.
2752 Description: Add lu_ref support to ldlm_lock
2753 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2754 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2755 and ldlm_resource. LDLM interface has to be changed, because code that
2756 releases a reference on a lock, has to "know" what reference this is.
2757 In the most frequent case
2759 lock = ldlm_handle2lock(handle);
2761 LDLM_LOCK_PUT(lock);
2763 no changes are required. When any other reference (received _not_ from
2764 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2765 instead of LDLM_LOCK_PUT().
2767 Arguably, changes are pervasive, and interface requires some discipline
2768 for proper use. On the other hand, it was very instrumental in finding
2769 a few leaked lock references.
2773 Description: Add ldlm_lock_addref_try().
2774 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2775 attempts to addref a lock that might be being canceled
2780 Description: Add ldlm_weigh_callback().
2781 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2782 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2783 hard-coded `number of pages' logic.
2787 Description: Add lockdep annotations to llog code.
2788 Details : Use appropriately tagged _nested() locking calls in the places
2789 where llog takes more than one ->lgh_lock lock.
2793 Description: Add loi_kms_set().
2794 Details : Wrap kms updates into a helper function.
2798 Description: Constify instances of struct lsm_operations.
2799 Details : Constify instances of struct lsm_operations.
2803 Description: lu_conf support.
2804 Details : On a server, a file system object is uniquely identified
2805 by a fid, which is sufficient to locate and load all object
2806 state (inode). On a client, on the other hand, more data are
2807 necessary instantiate an object. Change lu_object_find() and
2808 friends to take additional `lu_conf' argument describing object.
2809 Typically this includes layout information.
2813 Description: lu_context fixes.
2814 Details : Introduce new lu_context functions that are needed on the client
2815 side, where some system threads (ptlrpcd) are shared by multiple
2816 modules, and so cannot be stopped during module shutdown.
2820 Description: Add start and stop methods to lu_device_type_operations.
2821 Details : Introduce two new methods in lu_device_type_operations, that are
2822 invoked when first instance of a given type is created and last one
2823 is destroyed respectively. This is need by CLIO.
2827 Description: Add lu_ref support to struct lu_device.
2828 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2829 track leaked references.
2833 Description: Introduce lu_kmem_descr.
2834 Details : lu_kmem_descr and its companion interface allow to create
2835 and destroy a number of kmem caches at once.
2839 Description: Fix lu_object finalization race.
2840 Details : Fix a race between lu_object_find() finding an object and its
2841 concurrent finalization. This race is (most likely) not possible
2842 on the server, but might happen on the client.
2846 Description: Introduce lu_ref interface.
2847 Details : lu_ref is a debugging module allowing to track references to
2848 a given object. It is quite cpu expensive, and has to be
2849 explicitly enabled with --enable-lu_ref. See usage description
2854 Description: Factor lu_site procfs stats into a separate function.
2855 Details : Separate lu_site stats printing code into a separate function
2856 that can be reused on a client.
2860 Description: Constify instances of struct {lu,dt,md}_device_operations.
2861 Details : Constify instances of struct {lu,dt,md}_device_operations.
2865 Description: Introduce struct md_site and move meta-data specific parts of
2866 struct lu_site here.
2867 Details : Move md-specific fields out of struct lu_site into special struct
2868 md_site, so that lu_site can be used on a client.
2872 Description: Kill mdd_lov_destroy().
2873 Details : Remove unused mdd code.
2877 Description: Add st_block checking to multistat.c.
2878 Details : Add st_block checking to multistat.c.
2882 Description: Add lu_ref support to struct obd_device.
2883 Details : Add lu_ref tracking to obd_device.
2887 Description: Kill obd_set_fail_loc().
2888 Details : Remove unused code.
2892 Description: Add special type for ptlrpc_request interpret functions.
2893 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2894 there. Actual usage will be in CLIO.
2898 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2899 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2900 doesn't work with lockdep.
2904 Description: Add rwv.c test program.
2905 Details : New testing program exercising readv(2) and writev(2) (Qian).
2909 Description: Add sendfile.c test program.
2910 Details : New testing program exercising sendfile(2) (Jay).
2914 Description: Ratelimit a message that can be very frequent.
2915 Details : Ratelimit a memory allocation failure message that can
2920 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2921 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2925 Description: Liblustre build fixes.
2926 Details : Liblustre build fixes.
2930 Description: libcfs: add cfs_{need,cond}_resched() interface.
2931 Details : libcfs: add cfs_{need,cond}_resched() definition and
2932 implementations for Linux, NT, and liblustre.
2934 Severity : enhancement
2936 Description: More exported tunables for mballoc
2937 Details : Add support for tunable preallocation window and new tunables for
2938 large/small requests
2942 Description: Detect corruption of block bitmap and checking for preallocations
2943 Details : Checks validity of on-disk block bitmap. Also it does better
2944 checking of number of applied preallocations. When corruption is
2945 found, it turns filesystem readonly to prevent further corruptions.
2949 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2950 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2951 window to 0. If it does hit cache miss, and read-pattern is still
2952 stride-io mode, does not reset the stride window, but also does not
2953 increase the stride window length in this case.
2957 Frequency : only for big-endian servers
2958 Description: Check if system is big-endian while mounting fs with extents feature
2959 Details : Mounting a filesystem with extents feature will fail on big-endian
2960 systems since ext3-based ldiskfs is not supported on big-endian
2961 systems. This can be over-riden with "bigendian_extents" mount option.
2963 Severity : enhancement
2965 Description: The root squash functionality
2966 Details : A security feature, which is to prevent users from being able
2967 to mount lustre on their desktop, run as root, and delete
2968 all of the files in the filesystem. The goal is accomplished by
2969 remapping user id (UID) and group id (GID) of the root user to
2970 a UID and GID specified by the system administartor via Lustre
2971 configuration management server (MGS). The functionality also
2972 allows to specify sets of clients for which the remapping does
2977 Description: Excessive recovery window
2978 Details : With AT enabled, the recovery window can be excessively long (6000+
2979 seconds). To address this problem, we no longer use
2980 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2981 timeout no longer depends on the service time, it is set to
2982 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2983 time via pb_service_time.
2987 Description: Watchdog triggered on MDS failover
2988 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2989 the OSTs know that the MDS "UUID" can be reused for the same export
2990 from a different NID, so we do not need to wait for the export to be
2994 Frequency : rare, only if using MMP with Linux RAID
2996 Description: MMP doesn't work with Linux RAID
2997 Details : While using HA for Lustre servers with Linux RAID, it is possible
2998 that MMP will not detect multiple mounts. To make this work we
2999 need to unplug the device queue in RAID when the MMP block is being
3000 written. Also while reading the MMP block, we should read it from
3001 disk and not the cached one.
3003 Severity : enhancement
3005 Description: open file using fid
3006 Details : A file can be opened using just its fid, like
3007 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
3010 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
3013 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
3014 Details : add proper locking for creation of jbd_4k slab cache
3018 Description: MMP check in ext3_remount() fails without displaying any error
3019 Details : When multiple mount protection fails during remount, proper error
3022 Severity : enhancement
3024 Description: Allow stripe size to be up to 4G-64k
3025 Details : Fix math logic to allow large stripe sizes.
3029 Description: add check for >8TB ldiskfs filesystems
3030 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
3031 Don't allow >8TB ldiskfs filesystems to be mounted without
3032 force_over_8tb mount option
3037 Descriptoin: OSS complains "too many blocks" and crashes
3038 Details : In filter_commitrw_write():
3039 1. lquota_chkquota();
3040 2. obdo_from_inode();
3041 3. lquota_pending_commit();
3042 "2." has changed uid and gid in this case, then caused
3043 lquota_chkquota() and lquota_pending_commit() to use
3044 different uid and gid. That is the root of the bug.
3048 Descriptoin: getstripe doesn't report stripe count = -1 sanely
3049 Details : Detect and print out the 'stripe count = -1' case properly.
3053 Description: Out or order replies might be lost on replay
3054 Details : In ptlrpc_retain_replayable_request if we cannot find retained
3055 request with tid smaller than one currently being added, add it
3056 to the start, not end of the list.
3058 --------------------------------------------------------------------------------
3060 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
3062 * Support for kernels:
3063 2.6.5-7.283 (SLES 9),
3064 2.6.9-55.EL (RHEL 4),
3065 2.6.16.46-0.14 (SLES 10),
3066 2.6.18.8 vanilla (kernel.org)
3067 * Client support for unpatched kernels:
3068 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3069 2.6.16 - 2.6.22 vanilla (kernel.org)
3070 * Due to recently discovered recovery problems, we do not recommend
3071 using patchless RHEL 4 clients with this or any earlier release.
3072 * Recommended e2fsprogs version: 1.39.cfs8
3073 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3074 * Starting with this release, the ldiskfs backing filesystem required
3075 by Lustre is now in its own package, lustre-ldiskfs. This package
3076 should be installed. It is versioned separately from Lustre and
3077 may be released separately in future.
3081 Description: block reactivating mgc import until all deactivates complete
3082 Details : Fix race when failing back MDT/MGS to itself (testing)
3085 Frequency : at statup only
3087 Description: mds_lov_synchronize race leads to various problems
3088 Details : simultaneous MDT->OST connections at startup can cause the
3089 sync to abort, leaving the OSC in a bad state.
3091 Severity : enhancement
3093 Description: add optional extra BUILD_VERSION info
3094 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3095 to override the lustre version.
3098 Frequency : 2.6.18 servers only
3100 Description: ll_kern_mount() doesn't release the module reference
3101 Details : The ldiskfs module reference count never drops down to 0
3102 because ll_kern_mount() doesn't release the module reference.
3107 Description: server LBUG when using old ost_num_threads parameter
3108 Details : Accept the old ost_num_threads parameter but warn that it
3109 is deprecated, and fix an off-by-one error that caused an LBUG.
3114 Description: Transient SCSI error results in persistent IO issue
3115 Details : iobuf->dr_error is not reinitialized to 0 between two
3119 Frequency : sometimes when underlying device returns I/O errors
3121 Description: OSTs not going read-only during write failures
3122 Details : OSTs are not remounted read-only when the journal commit threads
3123 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3124 instead of the ext3 wrappers.
3128 Description: poor connect scaling with increasing client count
3129 Details : Don't run filter_grant_sanity_check for more than 100 exports
3130 to improve scaling for large numbers of clients.
3133 Frequency : SLES10 only
3135 Description: sanity-quota.sh quotacheck failed: rc = -22
3136 Details : Quotas cannot be enabled on SLES10.
3139 Frequency : liblustre clients only
3141 Description: getdirentries does not give error when run on compute nodes
3142 Details : getdirentries does not fail when the size specified as an argument
3143 is too small to contain at least one entry
3145 Severity : enhancement
3147 Description: Add LNET router traceability for debug purposes
3148 Details : If a checksum failure occurs with a router as part of the
3149 IO path, the NID of the last router that forwarded the bulk data
3150 is printed so it can be identified.
3155 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3156 Details : Due to a race condition, liblustre clients were occasionally
3157 evicted incorrectly.
3159 Severity : enhancement
3161 Description: lfs setstripe use optional parameters instead of postional
3164 Severity : enhancement
3166 Description: Nanosecond timestamp support for ldiskfs
3167 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3168 resolution timestamps. There is not yet support for this at
3169 the Lustre filesystem level.
3172 Frequency : during server recovery
3174 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3175 Details : request with rq_no_resend flag not awake l_wait_event if they get
3179 Frequency : nfs export on patchless client
3181 Description: connectathon hang when test nfs export over patchless client
3182 Details : Disconnected dentry cannot be found with lookup, so we do not need
3183 to unhash it or make it invalid
3186 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3187 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3188 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3193 Description: open req refcounting wrong on reconnect
3194 Details : If reconnect happened between getting open reply from server and
3195 call to mdc_set_replay_data in ll_file_open, we will schedule
3196 replay for unreferenced request that we are about to free.
3197 Subsequent close will crash in variety of ways.
3198 Check that request is still eligible for replay in
3199 mdc_set_replay_data().
3204 Description: disable writes to filesystem when reading health_check file
3205 Details : the default for reading the health_check proc file has changed
3206 to NOT do a journal transaction and write to disk, because this
3207 can cause reads of the /proc file to hang and block HA state
3208 checking on a healthy but otherwise heavily loaded system. It
3209 is possible to return to the previous behaviour during configure
3210 with --enable-health-write.
3212 Severity : enhancement
3214 Description: 64-bit inode version
3215 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3216 to the inode. This will be required for version-based recovery.
3221 Description: MDS fails to start if a duplicate client export is detected
3222 Details : in some rare cases it was possible for a client to connect to
3223 an MDS multiple times. Upon recovery the MDS would detect this
3224 and fail during startup. Handle this more gracefully.
3226 Severity : enhancement
3228 Description: Add -o localflock option to simulate old noflock
3230 Details : This will achieve local-only flock/fcntl locks
3236 Description: log_commit_thread vs filter_destroy race leads to crash
3237 Details : Take import reference before releasing llog record semaphore
3242 Description: Wrong request locking in request set processing
3243 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3244 imp_delayed_list, in this place should be used imp_lock.
3247 Frequency : when reconnection
3249 Description: Grant Leak when osc reconnect to OST
3250 Details : When osc reconnect ost, OST(filter) should check whether it
3251 should grant more space to client by comparing fed_grant and
3252 cl_avail_grant, and return the granted space to client instead
3253 of "new granted" space, because client will call osc_init_grant
3254 to update the client grant space info.
3257 Frequency : when client reconnect to OST
3259 Description: Grant Leak when osc do resend and replay bulk write
3260 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3261 bulk write request, because the grant info while be sync between
3262 OSC and OST when reconnect, and we should ignore the grant info
3263 these of resend/replay write req.
3268 Description: Grant space more than available left space sometimes.
3269 Details : When then OST is about to be full, if two bulk writing from
3270 different clients came to OST. Accord the avaliable space of the
3271 OST, the first req should be permitted, and the second one
3272 should be denied by ENOSPC. But if the seconde arrived before
3273 the first one is committed. The OST might wrongly permit second
3274 writing, which will cause grant space > available space.
3277 Frequency : when client is evicted
3279 Description: Grant might be wrongly erased when osc is evicted by OST
3280 Details : when the import is evicted by server, it will fork another
3281 thread ptlrpc_invalidate_import_thread to invalidate the
3282 import, where the grant will be set to 0. While the original
3283 thread will update the grant it got when connecting. So if
3284 the former happened latter, the grant will be wrongly errased
3285 because of this race.
3290 Description: Checking Stale with correct fid
3291 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3292 to check whether it is stale, because sometimes, we want the
3293 enqueue happened anyway, and op_data.fid2 will not be initialized.
3295 Severity : enhancement
3297 Description: update patchless client
3298 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3301 Frequency : only with 2.4 kernel
3303 Description: random memory corruption
3304 Details : size of struct ll_inode_info is to big for union inode.u and this
3305 can be cause of random memory corruption.
3310 Description: Memory leak in recovery
3311 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3312 It should also check obd_fail before fsfilt_start, otherwise if
3313 fsfilt_start return -EROFS,(failover mds during mds recovery).
3314 then the req will return with repmsg->transno = 0 and rc = EROFS.
3315 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3316 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3317 be freed no matter whether fsfilt_commit success or not.
3320 Frequency : only with huge count clients
3322 Description: Prevents from taking the superblock lock in llap_from_page for
3324 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3325 for llap_from_page call in ll_removepage prevents from taking the
3326 superblock lock for a soon died page.
3331 Description: Not check open intent error before release open handle
3332 Details : in some rare cases, the open intent error is not checked before
3333 release open handle, which may cause
3334 ASSERTION(open_req->rq_transno != 0), because it tries to release
3335 the failed open handle.
3340 Description: Set cat log bitmap only after create log success.
3341 Details : in some rare cases, the cat log bitmap is set too early. and it
3342 should be set only after create log success.
3346 Description: Accessing a block bevice can re-enable I/O when Lustre is
3347 tearing down a device.
3348 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3353 Description: service threads may hog cpus when there are a lot of requests
3354 Details : Insert cond_resched to give other threads a chance to use some CPU
3359 Description: the cat log was not initialized in recovery
3360 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3361 unlink log on mds will not be initialized until mds post
3362 recovery. And also in mds post recovery, the unlink log will
3363 initialization will be done asynchronausly, so there will be race
3364 between add unlink log and unlink log initialization.
3368 Description: brw_stats were being printed incorrectly
3369 Details : brw_stats were being printed as log2 but all of them were not
3370 recorded as log2. Also remove some code duplication arising from
3371 filter_tally_{read,write}.
3375 Frequency : rare, only in recovery.
3376 Description: ASSERTION(req->rq_type != LI_POISON) failed
3377 Details : imp_lock should be held while iterating over imp_sending_list for
3378 prevent destroy request after get timeout in ptlrpc_queue_wait.
3382 Description: replay-single.sh test 52 fails
3383 Details : A lock's skiplist need to be cleanup when it being unlinked
3384 from its resource list.
3388 Description: Short directio read returns full requested size rather than
3390 Details : Direct I/O operations should return actual amount of bytes
3391 transferred rather than requested size.
3393 Severity : enhancement
3395 Description: metadata RPC reduction (e.g. for rm performance)
3396 Details : decrease the amount of synchronous RPC between clients and servers
3397 by canceling conflicing lock before the operation on the client
3398 and packing thier handles into the main operation RPC to server.
3400 Severity : enhancement
3402 Description: Async OSC create to avoid the blocking unnecessarily.
3403 Details : If an OST has no remaining object, system will block on the
3404 creation when it needs to create a new object on this OST. Now,
3405 ways use pre-created objects when available, instead of blocking on
3406 an empty osc while others are not empty. If we must block, we
3407 block for the shortest possible period of time.
3411 Description: improve handling recoverable errors
3412 Details : if request processig with error which can be recoverable on server
3413 request should be resend, otherwise page released from cache and
3416 Severity : enhancement
3418 Description: refine locking for avoid write wrong info into lov_objid file
3419 Details : fix possible races with add new target and write/update data in
3422 --------------------------------------------------------------------------------
3424 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3429 Frequency : on some architectures
3431 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3432 Details : Uninitialized flags sometimes cause configuration commands to
3436 Frequency : patchless clients only
3438 Description: missing __iget() symbol export
3439 Details : The __iget() symbol export is missing. To avoid the need for
3440 this on patchless clients the deathrow inode reaper is turned
3441 off, and we depend on the VM to clean up old inodes. This
3442 dependency was during via the fix for bug 12181.
3444 --------------------------------------------------------------------------------
3446 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3448 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3449 INTEROPERATE with older versions automatically. In many cases a
3450 special upgrade step is needed. Please read the
3451 user documentation before upgrading any part of a live system.
3452 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3453 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3454 * WARNING: Lustre configuration and startup changes are required with
3455 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3459 Severity : enhancement
3461 Description: MountConf
3462 Details : Lustre configuration is now managed via mkfs and mount
3463 commands instead of lmc and lconf. New obd types (MGS, MGC)
3464 are added for dynamic configuration management. See
3465 https://mail.clusterfs.com/wikis/lustre/MountConf for
3468 Severity : enhancement
3470 Description: dynamic OST addition
3471 Details : OSTs can now be added to a live filesystem
3473 Severity : enhancement
3475 Description: startup order invariance
3476 Details : MDTs and OSTs can be started in any order. Clients only
3477 require the MDT to complete startup.
3479 Severity : enhancement
3481 Description: parallel, asynchronous orphan cleanup
3482 Details : orphan cleanup is now performed in separate threads for each
3483 OST, allowing parallel non-blocking operation.
3485 Severity : enhancement
3487 Description: optimized stripe assignment
3488 Details : stripe assignments are now made based on ost space available,
3489 ost previous usage, and OSS previous usage, in order to try
3490 to optimize storage space and networking resources.
3492 Severity : enhancement
3494 Description: Permanently set tunables
3495 Details : All writable /proc/fs/lustre tunables can now be permanently
3496 set on a per-server basis, at mkfs time or on a live system.
3498 Severity : enhancement
3500 Description: Lustre message v2
3501 Details : Add lustre message format v2.
3503 Severity : enhancement
3505 Description: client OST exclusion list
3506 Details : Clients can be started with a list of OSTs that should be
3507 declared "inactive" for known non-responsive OSTs.
3511 Description: SPEC SFS validation failure on NFS v2 over lustre.
3512 Details : Changes the blocksize for regular files to be 2x RPC size,
3513 and not depend on stripe size.
3515 Severity : enhancement
3517 Description: Multiple MD RPCs in flight.
3518 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3519 To avoid overly-overloading MDS, introduce a limit on number of
3520 MDS RPCs in flight for a single client and add /proc controls
3521 to adjust this limit.
3523 Severity : enhancement
3525 Description: client read/write statistics
3526 Details : Add client read/write call usage stats for performance
3527 analysis of user processes.
3528 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3529 file access. extents_stats shows chunk size distribution.
3530 extents_stats_per_process show chunk size distribution per
3533 Severity : enhancement
3535 Description: mds statistics
3536 Details : Add detailed mds operations statistics in
3537 /proc/fs/lustre/mds/*/stats.
3541 Description: Failure of copying files with lustre special EAs.
3542 Details : Client side always return success for setxattr call for lustre
3543 special xattr (currently only "trusted.lov").
3548 Description: Refcount LNET uuids
3549 Details : The global LNET uuid list grew linearly with every startup;
3550 refcount repeated list entries instead of always adding to
3553 Severity : enhancement
3555 Description: Dynamic service threads
3556 Details : Within a small range, start extra service threads
3557 automatically when the request queue builds up.
3560 Frequency : mixed-endian client/server environments
3562 Description: mixed-endian crashes
3563 Details : The new msg_v2 system had some failures in mixed-endian
3566 Severity : enhancement
3568 Description: Easy OST removal
3569 Details : OSTs can be permanently deactivated with e.g. 'lctl
3570 conf_param lustre-OST0001.osc.active=0'
3572 Severity : enhancement
3574 Description: MGS proc entries
3575 Details : Added basic proc entries for the MGS showing what filesystems
3578 Severity : enhancement
3580 Description: provide MGS failover
3581 Details : Added config lock reacquisition after MGS server failover.
3583 Severity : enhancement
3585 Description: add Linux 2.4 support
3586 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3590 Description: a large application tries to do I/O to the same resource and dies
3591 in the middle of it.
3592 Details : Check the req->rq_arrival time after the call to
3593 ost_brw_lock_get(), but before we do anything about
3594 processing it & sending the BULK transfer request. This
3595 should help move old stale pending locks off the queue as
3596 quickly as obd_timeout.
3599 Frequency : when an incorrect nid is specified during startup
3601 Description: ptlrpc connect to non-existant node causes kernel crash
3602 Details : LNET can't be re-entered from an event callback, which
3603 happened when we expire a message after the export has been
3604 cleaned up. Instead, hand the zombie cleanup off to another
3607 Severity : enhancement
3609 Description: plain/inodebits lock performance improvement
3610 Details : Grouping plain/inodebits in granted list by their request modes
3611 and bits policy, thus improving the performance of search through
3615 Frequency : only if OST filesystem is corrupted
3617 Description: client incorrectly hits assertion in ptlrpc_replay_req()
3618 Details : for a short time RPCs with bulk IO are in the replay list,
3619 but replay of bulk IOs is unimplemented. If the OST filesystem
3620 is corrupted due to disk cache incoherency and then replay is
3621 started it is possible to trip an assertion. Avoid putting
3622 committed RPCs into the replay list at all to avoid this issue.
3625 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
3627 Description: System hang on startup
3628 Details : This bug allowed the liblustre (e.g. catamount) client to
3629 return to the app before handling all startup RPCs. This
3630 could leave the node unresponsive to lustre network traffic
3631 and manifested as a server ptllnd timeout.
3633 Severity : enhancement
3635 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
3636 Details : liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT
3637 boolean to control whether to print peer debug info when a
3638 client's RPC times out.
3641 Frequency : only for kernels with patches from Lustre below 1.4.3
3643 Description: Remove old rdonly API
3644 Details : Remove old rdonly API which unused from at least lustre 1.4.3
3647 Frequency : only for devices with external journals
3649 Description: Set external device read-only also
3650 Details : During a commanded failover stop, we set the disk device
3651 read-only while the server shuts down. We now also set any
3652 external journal device read-only at the same time.
3655 Frequency : when upgrading from 1.4 while trying to change parameters
3657 Description: The wrong (new) MDC name was used when setting parameters for
3658 upgraded MDT's. Also allows changing of OSC (and MDC)
3659 parameters if --writeconf is specified at tunefs upgrade time.
3662 Frequency : when setting specific ost indicies
3664 Description: QOS code breaks on skipped indicies
3665 Details : Add checks for missing OST indicies in the QOS code, so OSTs
3666 created with --index need not be sequential.
3668 Severity : enhancement
3670 Description: Add uninit_groups feature to ldiskfs2 to speed up e2fsck
3671 Details : The uninit_groups feature works in conjunction with the kernel
3672 filesystem code (ldiskfs2 only) and e2fsprogs-1.39-cfs6 to speed
3673 up the pass1 processing of e2fsck. This is a read-only feature
3674 in ldiskfs2 only, so older kernels and current ldiskfs cannot
3675 mount filesystems that have had this feature enabled.
3677 Severity : enhancement
3679 Description: Improve multi-block allocation algorithm to avoid fragmentation
3680 Details : The mballoc3 code (ldiskfs2 only) adds new mechanisms to improve
3681 allocation locality and avoid filesystem fragmentation.
3683 ------------------------------------------------------------------------------
3685 2007-04-01 Cluster File Systems, Inc. <info@clusterfs.com>
3687 * Support for kernels:
3688 2.4.21-47.0.1.EL (RHEL 3)
3689 2.6.5-7.283 (SLES 9)
3690 2.6.9-42.0.10.EL (RHEL 4)
3691 2.6.12.6 vanilla (kernel.org)
3692 2.6.16.27-0.9 (SLES 10)
3693 * Recommended e2fsprogs version: 1.39.cfs5
3695 * Note that reiserfs quotas are disabled on SLES 10 in this kernel
3699 Frequency : occasional, depends on client load and configuration
3700 Bugzilla : 12181, 12203
3701 Description: data loss for recently-modified files
3703 Details : In some cases it is possible that recently written or created
3704 files may not be written to disk in a timely manner (this should
3705 normally be within 30s unless client IO load is very high).
3706 The problem appears as zero-length files or files that are a
3707 multiple of 1MB in size after a client crash or client eviction
3708 that are missing data at the end of the file.
3710 This problem is more likely to be hit on clients where files are
3711 repeatedly created and unlinked in the same directory, clients
3712 have a large amount of RAM, have many CPUs, the filesystem has
3713 many OSTs, the clients are rebooted frequently, and/or the files
3714 are not accessed by other nodes after being written.
3716 The presence of the problem can be detected by looking at
3717 /proc/sys/fs/inode-state. If the first number (nr_inodes) is
3718 smaller than the second (nr_unused) then dirty files will not
3719 be flushed automatically to disk. "sync; sleep 10" should be
3720 run several times on the node before unmounting it to update
3721 Lustre (this is also safe to run on nodes without this problem).
3723 There is also a related kernel bug in the RHEL4 4 2.6.9 kernel
3724 that can cause this same problem, so customers using that kernel
3725 also need to update the kernel in addition to Lustre. In order
3726 to properly fix this bug, the RHEL3 2.4.21 kernel is also updated.
3728 It is normal that files written just before a client crash (less
3729 than 30s) may not yet have been flushed to disk, even for local
3733 Frequency : frequent on thin XT3 nodes
3735 Description: UUID collision on thin XT3 Linux nodes
3736 Details : UUIDs on Compute Node Linux XT3 nodes were not generated
3737 randomly, since we relied on an insufficiently-seeded PRNG.
3742 Description: OSS hangs after "All ost request buffers busy"
3743 Details : A deadlock between quota and journal operations caused OSS
3744 hangs after printing "All ost request buffers busy."
3747 Frequency : always on liblustre builds
3749 Description: Cleanup compiler warnings on liblustre
3752 Frequency : always on liblustre builds on XT3
3754 Description: LC_CONFIG_CDEBUG don't run while build liblustre on XT3.
3758 Description: Addition of EXT3_FEATURE_RO_COMPAT_DIR_NLINKS flag for
3759 > 32000 subdirectories
3760 Details : Add EXT3_FEATURE_RO_COMPAT_DIR_NLINK flag to
3761 EXT3_FEATURE_RO_COMPAT_SUPP. This flag will be set whenever
3762 subdirectory count crosses 32000. This will aid e2fsck to
3763 correctly handle more than 32000 subdirectories.
3766 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
3768 Description: System hang on startup
3769 Details : This bug allowed the liblustre (e.g. catamount) client to
3770 return to the app before handling all startup RPCs. This
3771 could leave the node unresponsive to lustre network traffic
3772 and manifested as a server ptllnd timeout.
3774 Severity : enhancement
3776 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
3777 (liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT)
3778 boolean to control whether to print peer debug info when a
3779 client's RPC times out.
3784 Description: make O_SYNC working on 2.6 kernels
3785 Details : 2.6 kernels use different method for mark pages for write,
3786 so need add a code to lustre for O_SYNC work.
3791 Description: Failure to close file and release space on NFS
3792 Details : Put inode details into lock acquired in ll_intent_file_open.
3793 Use mdc_intent_lock in ll_intent_open to properly
3794 detect all kind of errors unhandled by mdc_enqueue.
3799 Description: proc file read during shutdown sometimes raced obd removal,
3801 Details : Add lock to prevent obd access after proc file removal.
3804 Frequency : Only for files larger than 4GB on 32-bit clients.
3806 Description: improperly doing page alignment of locks
3807 Details : Modify lustre core code to use CFS_PAGE_* defines instead of
3808 PAGE_*. Make CFS_PAGE_MASK a 64-bit mask.
3813 Description: RPCs being resent when they shouldn't be
3814 Details : Some RPCs that should not be resent are being resent. This
3815 can cause inconsistencies in the RPC state machine. Do not
3816 resend such requests.
3819 Frequency : rare, only with NFS export
3821 Description: Crash on NFS re-export node
3822 Details : under very unusual load conditions an assertion is hit in
3823 ll_intent_file_open()
3826 Frequency : only if OST filesystem is corrupted
3828 Description: client incorrectly hits assertion in ptlrpc_replay_req()
3829 Details : for a short time RPCs with bulk IO are in the replay list,
3830 but replay of bulk IOs is unimplemented. If the OST filesystem
3831 is corrupted due to disk cache incoherency and then replay is
3832 started it is possible to trip an assertion. Avoid putting
3833 committed RPCs into the replay list at all to avoid this issue.
3838 Description: large O_DIRECT requests fail under memory pressure/fragmentation
3839 Details : Large single O_DIRECT read and write calls can fail to allocate
3840 a sufficiently large buffer to process the request. In case of
3841 allocation failure the allocation is retried with a smaller
3842 buffer and broken into smaller requests.
3844 Severity : enhancement
3846 Description: Add -o localflock option to simulate old noflock behaviour.
3847 Details : This will achieve local-only flock/fcntl locks coherentness.
3852 Description: versioning check is incomplete
3853 Details : Checking the version difference of client vs. server, report
3854 error if the gap is too big.
3859 Description: add support PG_writeback bit
3860 Details : add support for PG_writeback bit for Lustre, for more carefull
3861 work with page cache in 2.6 kernel. This also fix some deadlocks
3862 and remove hack for work O_SYNC with 2.6 kernel.
3864 Severity : enhancement
3866 Description: Add uninit_groups feature to ldiskfs2 to speed up e2fsck
3867 Details : The uninit_groups feature works in conjunction with the kernel
3868 filesystem code (ldiskfs2 only) and e2fsprogs-1.39-cfs6 to speed
3869 up the pass1 processing of e2fsck. This is a read-only feature
3870 in ldiskfs2 only, so older kernels and current ldiskfs cannot
3871 mount filesystems that have had this feature enabled.
3873 Severity : enhancement
3875 Description: Improve multi-block allocation algorithm to avoid fragmentation
3876 Details : The mballoc3 code (ldiskfs2 only) adds new mechanisms to improve
3877 allocation locality and avoid filesystem fragmentation.
3879 ------------------------------------------------------------------------------
3881 2007-02-09 Cluster File Systems, Inc. <info@clusterfs.com>
3883 * Support for kernels:
3884 2.6.9-42.0.3.EL (RHEL 4)
3885 2.6.5-7.276 (SLES 9)
3886 2.4.21-47.0.1.EL (RHEL 3)
3887 2.6.12.6 vanilla (kernel.org)
3888 2.6.16.21-0.8 (SLES10)
3889 * Recommended e2fsprogs version: 1.39.cfs2-0
3891 * The backwards-compatible /proc/sys/portals symlink has been removed
3892 in this release. Before upgrading, please ensure that you change
3893 any configuration scripts or /etc/sysctl.conf files that access
3894 /proc/sys/portals/* or sysctl portals.* to use the corresponding
3895 entry in /proc/sys/lnet or sysctl lnet.*. This change can be made
3896 in advance of the upgrade on any system running Lustre 1.4.6 or
3897 newer, since /proc/sys/lnet was added in that version.
3898 * Note that reiserfs quotas are disabled on SLES 10 in this kernel
3902 Frequency : only when quota is used
3904 Description: avoid scanning export list for quota master
3905 Details : Change the algorithms to avoid scanning export list in order
3906 to improve the efficiency.
3909 Frequency : MDS failover only, very rarely
3911 Description: "went back in time" messages on mds failover
3912 Details : The greatest transno may be lost when the current operation
3913 finishes with an error (transno==0) and the client's last_rcvd
3914 record is over-written. Save the greatest transno in the
3915 mds_last_transno for this case.
3918 Frequency : always for specific kernels and striping counts
3920 Description: client may get "Matching packet too big" without ACL support
3921 Details : Clients compiled without CONFIG_FS_POSIX_ACL get an error message
3922 when trying to access files in certain configurations. The
3923 clients should in fact be denied when mounting because they do
3924 not understand ACLs.
3927 Frequency : Cray XT3 with more than 4000 clients and multiple jobs
3929 Description: many clients connecting with IO in progress causes connect timeouts
3930 Details : Avoid synchronous journal commits to avoid delays caused by many
3931 clients connecting/disconnecting when bulk IO is in progress.
3932 Queue liblustre connect requests on OST_REQUEST_PORTAL instead of
3933 OST_IO_PORTAL to avoid delays behind potentially many pending
3937 Frequency : occasionally with multiple writers to a single file
3939 Description: shared writes to file may result in wrong size reported by stat()
3940 Details : Allow growing of kms when extent lock is cancelled
3943 Frequency : always with random mmap IO to multi-striped file
3945 Description: mmap write might be lost if we are writing to a 'hole' in stripe
3946 Details : Only if the hole is at the end of OST object so that kms is too
3947 small. Fix is to increase kms accordingly in ll_nopage.
3950 Frequency : rare, only if OST filesystem is inconsistent with MDS filesystem
3952 Description: writes to a missing object would leak memory on the OST
3953 Details : If there is an inconsistency between the MDS and OST filesystems,
3954 such that the MDS references an object that doesn't exist, writes
3955 to that object will leak memory due to incorrect cleanup in the
3956 error handling path, eventually running out of memory on the OST.
3961 Description: Creating too long symlink causes lustre errors
3962 Details : Check symlink and name lengths before sending requests to MDS.
3965 Frequency : only if flock is enabled (not on by default)
3967 Description: posix locks not released on fd closure on 2.6.9+
3968 Details : We failed to add posix locks to list of inode locks on 2.6.9+
3969 kernels, this caused such locks not to be released on fd close and
3970 then assertions on fs unmount about still used locks.
3973 Frequency : MDS failover only, very rarely
3975 Description: clients may get ASSERTION(granted_lock != NULL)
3976 Details : When request was taking a long time, and a client was resending
3977 a getattr by name lock request. The were multiple lock requests
3978 with the same client lock handle and
3979 mds_getattr_name->fixup_handle_for_resent_request found one of the
3980 lock handles but later failed with ASSERTION(granted_lock != NULL).
3985 Description: handle->h_buffer_credits > 0, assertion failure
3986 Details : h_buffer_credits is zero after truncate, causing assertion
3987 failure. This patch extends the transaction or creates a new
3991 Frequency : NFS re-export or patchless client
3992 Bugzilla : 11179, 10796
3993 Description: Crash on NFS re-export node (__d_move)
3994 Details : We do not want to hash the dentry if we don't have a lock.
3995 But if this dentry is later used in d_move, we'd hit uninitialised
3996 list head d_hash, so we just do this to init d_hash field but
3997 leave dentry unhashed.
4000 Frequency : NFS re-export or patchless client
4002 Description: NFS exports has problem with symbolic link
4003 Details : lustre client didn't properly install dentry when re-exported
4004 to NFS or running patchless client.
4007 Frequency : NFS re-export or patchless client
4009 Description: Various nfs/patchless fixes.
4010 Details : fixes reuse disconected alias for lookup process - this fixes
4011 warning "find_exported_dentry: npd != pd",
4012 fix permission error with open files at nfs.
4013 fix apply umask when do revalidate.
4016 Frequency : occasional
4018 Description: Crash on NFS re-export node
4019 Details : calling clear_page() on the wrong pointer triggered oops in
4020 generic_mapping_read().
4023 Frequency : rarely, using O_DIRECT IO
4025 Description: unaligned directio crashes client with LASSERT
4026 Details : check for unaligned buffers before trying any requests.
4029 Frequency : rarely, using CFS RAID5 patches in non-standard kernel series
4031 Description: stale data returned from RAID cache
4032 Details : If only a small amount of IO is done to the RAID device before
4033 reading it again it is possible to get stale data from the RAID
4034 cache instead of reading it from disk.
4037 Frequency : always for sles10 kernel
4039 Description: sles10 support
4040 Details : ll_follow_link: compile fixes and using of nd_set_link
4041 under newer kernels.
4044 Frequency : depends on arch, kernel and compiler version, always on sles10
4047 Description: recursive or deep enough symlinks cause stack overflow
4048 Details : getting rid of large stack-allocated variable in
4052 Frequency : depends on hardware
4054 Description: lustre write performance loss in the SLES10 kernel
4055 Details : the performance loss is caused by using of write barriers in the
4056 ext3 code. The SLES10 kernel turns barrier support on by
4057 default. The fix is to undo that change for ldiskfs.
4059 ------------------------------------------------------------------------------
4061 2006-12-09 Cluster File Systems, Inc. <info@clusterfs.com>
4063 * Support for kernels:
4064 2.6.9-42.0.3EL (RHEL 4)
4065 2.6.5-7.276 (SLES 9)
4066 2.4.21-47.0.1.EL (RHEL 3)
4067 2.6.12.6 vanilla (kernel.org)
4071 Frequency : quota enabled and large files being deleted
4073 Description: releasing more than 4GB of quota at once hangs OST
4074 Details : If a user deletes more than 4GB of files on a single OST it
4075 will cause the OST to spin in an infinite loop. Release
4076 quota in < 4GB chunks, or use a 64-bit value for 1.4.7.1+.
4081 Description: statfs data retrieved from /proc may be stale or zero
4082 Details : When reading per-device statfs data from /proc, in the
4083 {kbytes,files}_{total,free,avail} files, it may appear
4084 as zero or be out of date.
4087 Frequency : systems with MD RAID1 external journal devices
4089 Description: lconf's call to blkid is confused by RAID1 journal devices
4090 Details : Use the "blkid -l" flag to locate the MD RAID device instead
4091 of returning all block devices that match the journal UUID.
4094 Frequency : always, for aggregate stripe size over 4GB
4096 Description: "lfs setstripe" fails assertion when setting 4GB+ stripe width
4097 Details : Using "lfs setstripe" to set stripe size * stripe count over 4GB
4098 will fail the kernel with "ASSERTION(lsm->lsm_xfersize != 0)"
4101 Frequency : always if "lfs find" used on a local file/directory
4103 Description: "lfs find" segfaults if used on a local file/directory
4104 Details : The case where a directory component was not specified wasn't
4105 handled correctly. Handle this properly.
4108 Frequency : always on ppc64
4110 Description: the write to an ext3 filesystem mounted with mballoc got stuck
4111 Details : ext3_mb_generate_buddy() uses find_next_bit() which does not
4112 perform endianness conversion.
4115 Frequency : rarely (truncate to non-zero file size after write under load)
4116 Bugzilla : 10730, 10687
4117 Description: Files padded with zeros to next 4K multiple
4118 Details : With filesystems mounted using the "extents" option (2.6 kernels)
4119 it is possible that files that are truncated to a non-zero size
4120 immediately after being written are filled with zero bytes beyond
4121 the truncated size. No file data is lost.
4123 Severity : enhancement
4125 Description: Allow recovery/failover for liblustre clients.
4126 Details : liblustre clients were unaware of failover configurations until
4129 Severity : enhancement
4131 Description: user file locks should fail when not mounting with flock option
4132 Details : Set up an error-returning stub in ll_file_operations.lock field
git://git.whamcloud.com / fs / lustre-release.git / blob