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 3.10.0-1160.45.1.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 4.18.0-305.19.1.el8 (RHEL8.4)
17 4.4.120-92.70 (SLES12 SP2)
18 4.4.180-94.100 (SLES12 SP3)
19 4.4.0-131 (Ubuntu 16.04)
20 4.15.0-32 (Ubuntu 18.04)
21 5.4.0-48 (Ubuntu 20.04)
22 vanilla linux 5.4.0 (ZFS + ldiskfs)
23 vanilla linux 5.4.21 (ZFS + ldiskfs)
24 vanilla linux 5.4.136 (ZFS + ldiskfs)
25 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
26 * Client primary kernels built and tested during release cycle:
27 3.10.0-1062.18.1.el7 (RHEL7.7)
28 3.10.0-1127.19.1.el7 (RHEL7.8)
29 3.10.0-1160.45.1.el7 (RHEL7.9)
30 4.12.14-95.48 (SLES12 SP4)
31 4.12.14-122.83 (SLES12 SP5)
32 4.12.14-197.75 (SLES15 SP1)
33 5.3.18-24.61 (SLES15 SP2)
34 5.3.18-59.19 (SLES15 SP3)
35 4.15.0-48 (Ubuntu 18.04)
36 * Other clients known to build on these kernels at some point (others may also work):
37 3.10.0-862.14.4.el7 (RHEL7.5)
38 3.10.0-957.27.2.el7 (RHEL7.6)
39 4.14.0-49.13.1.el7a (RHEL7.5)
40 4.14.0-115.2.2.el7a (RHEL7.6)
41 4.18.0-80.11.2.el8 (RHEL8.0)
42 4.18.0-147.8.1.el8 (RHEL8.1)
43 4.18.0-193.28.1.el8 (RHEL8.2)
44 4.18.0-240.22.1.el8 (RHEL8.3)
45 4.18.0-305.19.1.el8 (RHEL8.4)
46 4.4.120-92.70 (SLES12 SP2)
47 4.4.180-94.100 (SLES12 SP3)
48 4.4.0-131 (Ubuntu 16.04)
49 5.4.0-37 (Ubuntu 20.04)
50 5.8.0-53 (Ubuntu 20.04.2 HWE)
51 5.11.0-31 (Ubuntu 20.04.3 HWE)
52 5.11.0 (vanilla kernel.org)
53 * Recommended e2fsprogs version: 1.46.2.wc1 or newer
54 * Recommended ZFS version: 2.0.0
55 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
56 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
57 stack overflow. For more information, please refer to bugzilla 17630.
58 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
59 the re-exporting nodes to be mounted with "32bitapi" mount option
61 --------------------------------------------------------------------------------
65 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
66 for currently supported client and server kernel versions.
67 * Server primary kernels built and tested during release cycle:
68 3.10.0-1062.18.1.el7 (RHEL7.7)
69 3.10.0-1127.19.1.el7 (RHEL7.8)
70 3.10.0-1160.6.1.el7 (RHEL7.9)
71 * Other server kernels known to build and work at some point (others may also work):
72 3.10.0-862.14.4.el7 (RHEL7.5)
73 3.10.0-957.27.2.el7 (RHEL7.6)
74 4.18.0-80.11.2.el8 (RHEL8.0)
75 4.18.0-147.8.1.el8 (RHEL8.1)
76 4.18.0-193.28.1.el8 (RHEL8.2)
77 4.18.0-240.1.1.el8 (RHEL8.3)
78 4.4.120-92.70 (SLES12 SP2)
79 4.4.180-94.100 (SLES12 SP3)
80 4.4.0-131 (Ubuntu 16.04)
81 4.15.0-32 (Ubuntu 18.04)
82 5.4.0-48 (Ubuntu 20.04)
83 vanilla linux 5.4.0 (ZFS + ldiskfs)
84 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
85 * Client primary kernels built and tested during release cycle:
86 3.10.0-1062.18.1.el7 (RHEL7.7)
87 3.10.0-1127.19.1.el7 (RHEL7.8)
88 3.10.0-1160.6.1.el7 (RHEL7.9)
89 4.12.14-95.48 (SLES12 SP4)
90 4.12.14-122.20 (SLES12 SP5)
91 4.12.14-197.75 (SLES15 SP1)
92 5.3.18-24.24 (SLES15 SP2)
93 4.15.0-48 (Ubuntu 18.04)
94 * Other clients known to build on these kernels at some point (others may also work):
95 3.10.0-862.14.4.el7 (RHEL7.5)
96 3.10.0-957.27.2.el7 (RHEL7.6)
97 4.14.0-49.13.1.el7a (RHEL7.5)
98 4.14.0-115.2.2.el7a (RHEL7.6)
99 4.18.0-80.11.2.el8 (RHEL8.0)
100 4.18.0-147.8.1.el8 (RHEL8.1)
101 4.18.0-193.28.1.el8 (RHEL8.2)
102 4.18.0-240.1.1.el8 (RHEL8.3)
103 4.4.120-92.70 (SLES12 SP2)
104 4.4.180-94.100 (SLES12 SP3)
105 4.4.0-131 (Ubuntu 16.04)
106 5.4.0-37 (Ubuntu 20.04)
107 5.4.0 (vanilla kernel.org)
108 * Recommended e2fsprogs version: 1.45.6.wc5 or newer
109 * Recommended ZFS version: 2.0.0
110 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
111 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
112 stack overflow. For more information, please refer to bugzilla 17630.
113 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
114 the re-exporting nodes to be mounted with "32bitapi" mount option
116 --------------------------------------------------------------------------------
120 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
121 for currently supported client and server kernel versions.
122 * Server primary kernels built and tested during release cycle:
123 3.10.0-1062.1.1.el7 (RHEL7.7)
124 * Other server kernels known to build and work at some point (others may also work):
125 3.10.0-862.14.4.el7 (RHEL7.5)
126 3.10.0-957.27.2.el7 (RHEL7.6)
127 4.18.0-80.7.1.el8 (RHEL8.0)
128 4.4.120-92.70 (SLES12 SP2)
129 4.4.180-94.100 (SLES12 SP3)
130 4.4.0-131 (Ubuntu 16.04)
131 4.15.0-32 (Ubuntu 18.04)
132 vanilla linux 4.6.7 (ZFS only)
133 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
134 * Client primary unpatched kernels built and tested during release cycle:
135 3.10.0-1062.1.1.el7 (RHEL7.7)
136 4.12.14-95.29 (SLES12 SP4)
137 4.15.0-48 (Ubuntu 18.04)
138 * Other clients known to build on unpatched kernels at some point (others may also work):
139 3.10.0-862.14.4.el7 (RHEL7.5)
140 3.10.0-957.27.2.el7 (RHEL7.6)
141 4.14.0-49.13.1.el7a (RHEL7.5)
142 4.14.0-115.2.2.el7a (RHEL7.6)
143 4.18.0-80.7.1.el8 (RHEL8.0)
144 4.4.120-92.70 (SLES12 SP2)
145 4.4.180-94.100 (SLES12 SP3)
146 4.4.0-131 (Ubuntu 16.04)
147 vanilla linux 4.15.0 (ZFS only)
148 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
149 * Recommended ZFS / SPL version: 0.7.13
150 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
151 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
152 stack overflow. For more information, please refer to bugzilla 17630.
153 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
154 the re-exporting nodes to be mounted with "32bitapi" mount option
155 * Note for Ubuntu 14.04.5:
156 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
157 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
159 --------------------------------------------------------------------------------
163 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
164 for currently supported client and server kernel versions.
165 * Server known to build on the following kernels (others may also work):
166 2.6.32-696.18.7.el6 (RHEL6.9)
167 3.10.0-862.14.4.el7 (RHEL7.5)
168 3.10.0-957.el7 (RHEL7.6)
169 4.4.120-92.70 (SLES12 SP2)
170 4.4.162-94.69 (SLES12 SP3)
171 4.4.0-131 (Ubuntu 16.04)
172 4.15.0-32 (Ubuntu 18.04)
173 vanilla linux 4.6.7 (ZFS only)
174 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
175 * Client known to build on unpatched kernels (others may also work):
176 2.6.32-696.18.7.el6 (RHEL6.9)
177 2.6.32-754.6.3.el6 (RHEL6.10)
178 3.10.0-862.14.4.el7 (RHEL7.5)
179 3.10.0-957.el7 (RHEL7.6)
180 4.14.0-49.13.1.el7a (RHEL7.5)
181 4.14.0-115.2.2.el7a (RHEL7.6)
182 4.4.120-92.70 (SLES12 SP2)
183 4.4.162-94.69 (SLES12 SP3)
184 4.4.0-131 (Ubuntu 16.04)
185 4.15.0-32 (Ubuntu 18.04)
186 vanilla linux 4.15.0 (ZFS only)
187 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
188 * Recommended ZFS / SPL version: 0.7.9
189 * Tested with ZFS / SPL version: 0.7.9
190 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
191 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
192 stack overflow. For more information, please refer to bugzilla 17630.
193 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
194 the re-exporting nodes to be mounted with "32bitapi" mount option
195 * Note for Ubuntu 14.04.5:
196 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
197 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
199 --------------------------------------------------------------------------------
201 2018-04-03 Intel Corporation
203 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
204 for currently supported client and server kernel versions.
205 * Server known to build on patched kernels:
206 2.6.32-431.29.2.el6 (RHEL6.5)
207 2.6.32-504.30.3.el6 (RHEL6.6)
208 2.6.32-573.26.1.el6 (RHEL6.7)
209 2.6.32-642.15.1.el6 (RHEL6.8)
210 2.6.32-696.18.7.el6 (RHEL6.9)
211 3.10.0-693.21.1.el7 (RHEL7.4)
212 3.0.101-0.47.71 (SLES11 SP3)
213 3.0.101-107 (SLES11 SP4)
214 3.12.74-60.64.40 (SLES12 SP1)
215 4.4.114-92.64 (SLES12 SP2)
216 4.4.114-94.11 (SLES12 SP3)
217 3.13.0-101 (Ubuntu 14.04, ZFS only)
218 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
219 4.4.0-116 (Ubuntu 16.04)
220 vanilla linux 4.6.7 (ZFS only)
221 * Client known to build on unpatched kernels:
222 2.6.32-431.29.2.el6 (RHEL6.5)
223 2.6.32-504.30.3.el6 (RHEL6.6)
224 2.6.32-573.26.1.el6 (RHEL6.7)
225 2.6.32-642.15.1.el6 (RHEL6.8)
226 2.6.32-696.18.7.el6 (RHEL6.9)
227 3.10.0-693.21.1.el7 (RHEL7.4)
228 3.0.101-0.47.71 (SLES11 SP3)
229 3.0.101-107 (SLES11 SP4)
230 3.12.74-60.64.40 (SLES12 SP1)
231 4.4.114-92.64 (SLES12 SP2)
232 4.4.114-94.11 (SLES12 SP3)
233 3.13.0-101 (Ubuntu 14.04)
234 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
235 4.4.0-116 (Ubuntu 16.04)
237 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
238 * Recommended ZFS / SPL version: 0.7.6
239 * Tested with ZFS / SPL version: 0.7.6
240 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
241 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
242 stack overflow. For more information, please refer to bugzilla 17630.
243 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
244 the re-exporting nodes to be mounted with "32bitapi" mount option
245 * Note for Ubuntu 14.04.5:
246 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
247 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
249 --------------------------------------------------------------------------------
251 2017-07-05 Intel Corporation
253 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
254 for currently supported client and server kernel versions.
255 * Server known to build on patched kernels:
256 2.6.32-431.29.2.el6 (RHEL6.5)
257 2.6.32-504.30.3.el6 (RHEL6.6)
258 2.6.32-573.26.1.el6 (RHEL6.7)
259 2.6.32-642.15.1.el6 (RHEL6.8)
260 2.6.32-696.3.1.el6 (RHEL6.9)
261 3.10.0-514.21.1.el7 (RHEL7.3)
262 3.0.101-0.47.71 (SLES11 SP3)
263 3.0.101-100 (SLES11 SP4)
264 3.12.74-60.64.40 (SLES12 SP1)
265 4.4.59-92.17 (SLES12 SP2)
266 vanilla linux 4.6.7 (ZFS only)
267 * Client known to build on unpatched kernels:
268 2.6.32-431.29.2.el6 (RHEL6.5)
269 2.6.32-504.30.3.el6 (RHEL6.6)
270 2.6.32-573.26.1.el6 (RHEL6.7)
271 2.6.32-642.15.1.el6 (RHEL6.8)
272 2.6.32-696.3.1.el6 (RHEL6.9)
273 3.10.0-514.21.1.el7 (RHEL7.3)
274 3.0.101-0.47.71 (SLES11 SP3)
275 3.0.101-100 (SLES11 SP4)
276 3.12.74-60.64.40 (SLES12 SP1)
277 4.4.59-92.17 (SLES12 SP2)
279 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
280 * Recommended ZFS / SPL version: 0.6.5.9
281 * Tested with ZFS / SPL version: 0.6.5.9
282 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
283 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
284 stack overflow. For more information, please refer to bugzilla 17630.
285 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
286 the re-exporting nodes to be mounted with "32bitapi" mount option
288 --------------------------------------------------------------------------------
290 12-07-2016 Intel Corporation
292 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
293 for currently supported client and server kernel versions.
294 * Server known to build on patched kernels:
295 2.6.32-431.29.2.el6 (RHEL6.5)
296 2.6.32-504.30.3.el6 (RHEL6.6)
297 2.6.32-573.26.1.el6 (RHEL6.7)
298 2.6.32-642.11.1.el6 (RHEL6.8)
299 3.10.0-514.el7 (RHEL7.3)
300 3.0.101-0.47.71 (SLES11 SP3)
301 3.0.101-80 (SLES11 SP4)
302 3.12.62-60.64.8 (SLES12 SP1)
303 vanilla linux 4.5.7 (ZFS only)
304 * Client known to build on unpatched kernels:
305 2.6.32-431.29.2.el6 (RHEL6.5)
306 2.6.32-504.30.3.el6 (RHEL6.6)
307 2.6.32-573.26.1.el6 (RHEL6.7)
308 2.6.32-642.11.1.el6 (RHEL6.8)
309 3.10.0-514.el7 (RHEL7.3)
310 3.0.101-0.47.71 (SLES11 SP3)
311 3.0.101-80 (SLES11 SP4)
312 3.12.62-60.64.8 (SLES12 SP1)
314 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
315 * Recommended ZFS / SPL version: 0.6.5.8
316 * Tested with ZFS / SPL version: 0.6.5.8
317 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
318 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
319 stack overflow. For more information, please refer to bugzilla 17630.
320 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
321 the re-exporting nodes to be mounted with "32bitapi" mount option
323 --------------------------------------------------------------------------------
325 02-29-2016 Intel Corporation
327 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
328 for currently supported client and server kernel versions.
329 * Server known to build on patched kernels:
330 2.6.32-431.29.2.el6 (RHEL6.5)
331 2.6.32-504.30.3.el6 (RHEL6.6)
332 2.6.32-573.12.1.el6 (RHEL6.7)
333 3.10.0-327.3.1.el7 (RHEL7.2)
334 3.0.101-0.47.71 (SLES11 SP3)
335 3.0.101-68 (SLES11 SP4)
336 vanilla linux 4.2.1 (ZFS only)
337 * Client known to build on unpatched kernels:
338 2.6.32-431.29.2.el6 (RHEL6.5)
339 2.6.32-504.30.3.el6 (RHEL6.6)
340 2.6.32-573.12.1.el6 (RHEL6.7)
341 3.10.0-327.3.1.el7 (RHEL7.2)
342 3.0.101-0.47.71 (SLES11 SP3)
343 3.0.101-68 (SLES11 SP4)
346 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
347 * Recommended ZFS / SPL version: 0.6.4.2
348 * Tested with ZFS / SPL version: 0.6.4.2
349 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
350 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
351 stack overflow. For more information, please refer to bugzilla 17630.
352 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
353 the re-exporting nodes to be mounted with "32bitapi" mount option
355 --------------------------------------------------------------------------------
357 03-10-2015 Intel Corporation
359 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
360 for currently supported client and server kernel versions.
361 * Server known to build on patched kernels:
362 2.6.32-431.29.2.el6 (RHEL6.5)
363 2.6.32-504.8.1.el6 (RHEL6.6)
364 3.0.101-0.46 (SLES11 SP3)
365 * Client known to build on unpatched kernels:
366 2.6.32-431.29.2.el6 (RHEL6.5)
367 2.6.32-504.8.1.el6 (RHEL6.6)
368 3.10.0-123.20.1.el7 (RHEL7)
369 3.0.101-0.46 (SLES11 SP3)
370 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
371 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
372 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
373 stack overflow. For more information, please refer to bugzilla 17630.
374 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
375 the re-exporting nodes to be mounted with "32bitapi" mount option
377 Severity : enhancement
379 Description: control OST-index in IDIF via ROCOMPAT flag.
380 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
381 last_rcvd file. For new formatted OST device, it will be auto set;
382 for the case of upgrading from old OST device, you can enable it
383 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
384 enabled, for new created OST-object, its IDIF-in-LMA will contain
385 the OST-index; for the existing OST-object, the OSD will convert
386 old format IDIF as new format IDIF with OST-index stored in the
387 LMA EA when accessing such OST-object or via OI scrub. Once such
388 flag is enabled, it cannot be reverted back, so the system cannot
389 be downgraded to the orignal incompatible version.
391 --------------------------------------------------------------------------------
393 07-30-2014 Intel Corporation
395 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
396 for currently supported client and server kernel versions.
397 * Server known to build on patched kernels:
398 2.6.32-431.20.3.el6 (RHEL6.5)
399 3.0.101-0.31 (SLES11 SP3)
400 * Client known to build on unpatched kernels:
401 2.6.32-431.20.3.el6 (RHEL6.5)
402 3.0.101-0.31 (SLES11 SP3)
405 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
406 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
407 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
408 stack overflow. For more information, please refer to bugzilla 17630.
409 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
410 the re-exporting nodes to be mounted with "32bitapi" mount option
412 --------------------------------------------------------------------------------
414 10-31-2013 Intel Corporation
416 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
417 * Server builds for kernels:
418 2.6.32-358.18.1.el6 (RHEL6.4)
419 * Client builds for unpatched kernels:
420 2.6.32-358.18.1.el6 (RHEL6.4)
421 3.0.92-0.8 (SLES11 SP3)
423 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
424 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
425 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
426 stack overflow. For more information, please refer to bugzilla 17630.
427 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
428 the re-exporting nodes to be mounted with "32bitapi" mount option
430 --------------------------------------------------------------------------------
432 05-30-2013 Intel Corporation
434 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
435 * Server builds for kernels:
436 2.6.32-358.6.2.el6 (RHEL6.4)
437 * Client builds for unpatched kernels:
438 2.6.32-358.6.2.el6 (RHEL6.4)
439 3.0.74-0.6.6 (SLES11 SP2)
441 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
442 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
443 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
444 stack overflow. For more information, please refer to bugzilla 17630.
445 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
446 the re-exporting nodes to be mounted with "32bitapi" mount option
448 --------------------------------------------------------------------------------
450 9-30-2012 Whamcloud, Inc.
452 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
453 * Server support for kernels:
454 2.6.32-279.5.1.el6 (RHEL6)
455 * Client support for unpatched kernels:
456 2.6.32-279.5.1.el6 (RHEL6)
458 2.6.18-238.19.1.el5 (RHEL5)
459 2.6.16.60-0.69.1 (SLES10)
460 * Recommended e2fsprogs version: 1.41.90.wc4
461 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
462 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
463 stack overflow. For more information, please refer to bugzilla 17630.
464 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
465 the re-exporting nodes to be mounted with "32bitapi" mount option
467 Severity : enhancement
469 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
471 Severity : enhancement
473 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
475 Severity : enhancement
477 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
479 Severity : enhancement
481 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
483 Severity : enhancement
485 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
487 --------------------------------------------------------------------------------
489 04-30-2012 Whamcloud, Inc.
491 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
492 * Server support for kernels:
493 2.6.32-220.4.2.el6 (RHEL6)
494 * Client support for unpatched kernels:
495 2.6.32-220.4.2.el6 (RHEL6)
497 2.6.18-238.19.1.el5 (RHEL5)
498 2.6.16.60-0.69.1 (SLES10)
499 * Recommended e2fsprogs version: 1.41.90.wc4
500 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
501 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
502 stack overflow. For more information, please refer to bugzilla 17630.
503 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
504 the re-exporting nodes to be mounted with "32bitapi" mount option
506 Severity : enhancement
508 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
510 Severity : enhancement
512 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
514 Severity : enhancement
516 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
518 Severity : enhancement
520 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
522 --------------------------------------------------------------------------------
524 09-30-2011 Whamcloud, Inc.
526 * Server support for kernels:
527 2.6.18-238.19.1.el5 (RHEL5)
528 2.6.32-131.6.1.el6 (RHEL6)
529 * Client support for unpatched kernels:
530 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
531 2.6.18-238.19.1.el5 (RHEL5)
532 2.6.32-131.6.1.el6 (RHEL6)
533 2.6.29.4-167.fc11 (FC11)
534 2.6.16.60-0.69.1 (SLES10)
536 * Recommended e2fsprogs version: 1.41.90.wc3
537 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
538 Lustre filesystem with 4K stack may cause a stack overflow. For more
539 information, please refer to bugzilla 17630.
540 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
541 mounted with "32bitapi" mount option
543 Severity : enhancement
544 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
546 Severity : enhancement
547 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
549 Severity : enhancement
550 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
553 Frequency : only with SLES10
555 Description: Use OFED "KMP" provided by Novell
556 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
557 Lustre is now built against this package. That means you need to
558 install the ofed-kmp package from Novell for the patchless client.
559 Note that the ofed-kmp that Novell ships may not exactly match the
560 kernel version but should still be compatible.
562 Severity : enhancement
564 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
565 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
567 --------------------------------------------------------------------------------
569 2010-07-15 Oracle, Inc.
571 * Server support for kernels:
572 2.6.18-164.11.1.el5 (RHEL 5)
573 2.6.18-164.11.1.0.1.el5 (OEL 5)
574 * Client support for unpatched kernels:
575 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
576 2.6.18-164.11.1.el5 (RHEL 5),
577 2.6.18-164.11.1.0.1.el5 (OEL 5)
578 2.6.16.60-0.42.8 (SLES 10),
580 2.6.29.4-167.fc11 (FC11)
581 * Recommended e2fsprogs version: 1.41.10-sun2
583 Severity : enhancement
585 Description: Distribute lfs_migrate script with lustre
586 Details : The lfs_migrate mentioned in the manual is now included in the
587 lustre tree in lustre/scripts and will distributed in lustre RPMs.
589 Severity : enhancement
591 Description: Failover nid list added to import proc file.
593 Severity : enhancement
595 Description: "som_preview" mount option required to use SOM
596 Details : The clients will need to use som_preview mount option
600 Description: Lustre does not do 1MB IOs to HW RAID
601 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
603 Severity : enhancement
605 Description: lfs quota output is not very convenient for awk/sed-parsing
606 Details : Some positions in lfs quota output table could be empty or
607 non-empty which made it hard to parse it with scripts, now
608 a dash is put instead of space where there is not supposed
613 Description: Update to OFED 1.5.1
614 Details : OFED 1.5.1 will be used in environments that don't use
615 vendor supplied OFED.
619 Description: Remove lnet. prefix from lctl params display
620 Details : Also renamed lnet.memused to lnet_memused to
625 Description: Use conf_param -d to remove permanant settings.
629 Description: Add list_param -R
630 Details : lctl list_param now supports recursive mode.
633 Bugzilla : 21829, 22312
634 Description: Fix llobdstat.
635 Details : 1. Now updating the write_bytes counter
636 2. Port script fixes from 1.8.
640 Description: decrease the usage of memory on clients.
641 Details : 1. On clients, recycle dentries and inodes unused.
642 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
647 Description: llobdstat fix and enhancement
648 Details : add a counter to set a limit to how many samples will be returned
649 fix a wildcard in the path to limit to obdfilter stats only
653 Description: lfs check only allowed for root
654 Details : Code cleanups and added a regresion test of non-root use of
659 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
660 Details : Fix hr->hr_index overload.
664 Description: Fix FIEMAP functionality.
668 Description: FC11 patchless client support added
672 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
673 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
677 Description: New acc-sm script and various test-framework enhancments.
681 Description: Previously landed patch was reverted.
685 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
689 Description: Add ldiskfs maxdirsize mount option.
693 Description: Fix mkfs.lustre support for 16TB LUNs.
697 Description: Print mmp_check_interval
698 Details : print mmp_check_interval and make it possible to abort
699 mount operation in case it takes too long.
703 Description: Add cascading_rw to lustre mpi tests.
707 Description: Store SOM data in EA.
708 Details : Also several SOM related cleanups.
712 Description: Add refcount to md_open_data
716 Description: Use refcount on lov_request_set to prevent memory corruption.
720 Description: Statahead: use parent dir's i_mutex for synchronization.
724 Description: loadgen improvements.
728 Description: Enable peer health detection in ksocklnd and ko2iblnd.
732 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
736 Description: Fix race on obd_devcie:md_stats
740 Description: Fix SLES 11 client builds.
741 Details : Resolved uninitalized pointer gcc warnings.
745 Description: Allow non-root access for "lfs check".
746 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
750 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
752 Severity : enhancement
754 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
755 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
759 Description: Sanity test_27p fails.
760 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
761 Sanity tests 27 were cleaned up and improved.
765 Description: Unify req format on client/servers
766 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
767 buffers and swabbers approach..
772 Description: drop join file stuff.
774 Severity : enhancement
776 Description: Add 2.6.27 and SLES11 (patchless client) support
780 Description: Fix in ptlrpc_expire_one_request() to print the signed time
783 Severity : enhancement
785 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
788 Severity : enhancement
790 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
792 Severity : enhancement
794 Description: correctly handle big reply message.
795 Details : send LNet event if reply is bigger than buffer and adjust this buffer
800 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
802 Severity : enhancement
804 Description: Add support for OEL5.
808 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
810 Severity : enhancement
812 Description: "weak-modules" support
813 Details : Implement "weak-modules" support which enables kernel modules
814 to be used with any kernel that implements the same kABI. In
815 order to achieve this modules are now installed in
816 /lib/modules/$(uname -r)/updates/kernel on all distributions.
820 Description: client could not reconnect to OST because of an active request.
821 Details : The client now retries to reconnect to the same server, if a
822 connect request failed with EBUSY or -EAGAIN. Test case 35b
823 conf-sanity.sh has been created.
827 Description: Don't allow make backward step on assignin osc next id.
828 Details : race between allocation next id and ll_sync thread can be cause
829 of set wrong osc next id and can be kill valid ost objects.
833 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
837 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
841 Description: Error handling in osc_statfs_interpret() has been improved.
842 Details : Check in osc_statfs_interpret() for EBADR.
846 Description: Do not send statfs() requests to OSTs disabled by administrator.
847 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
849 Severity : enhancement
851 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
853 Severity : enhancement
855 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
857 Severity : enhancement
859 Description: Enhancement for lfs(1) command to use numeric uid/gid.
863 Description: Improved cleanup procedure for conf-sanity test_46a.
867 Description: Do not start bulk transfer, if client tried to reconnect.
868 Details : Do not start bulk transfer, if client tried to reconnect,
869 but failed due to active rpcs. Check for exp_abort_active_req
870 has been implemented.
874 Description: Prevent inconsistences between linux and lustre mount structures.
875 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
876 Make the sleep interruptible.
878 Severity : enhancement
880 Description: provide server to client comms path
881 Details : server to client communications path via new LDLM_SET_INFO rpc
885 Description: truncate starts GFP_FS allocation under transaction causing deadlock
886 Details : ldiskfs_truncate calls grab_cache_page which may start page
887 allocation under an open transaction. This may lead to
888 calling prune_icache with consequent lustre reentrance.
892 Description: send correctly lsm on open replay
893 Details : MDS is trust to LSM size on replay open, but client can set wrong size
898 Description: enable client interface failover
899 Details : When a child reconnects from another NID, properly update export
900 nid hash position and ldlm reverse import.
902 Severity : enhancement
904 Description: Communicate OST degraded/readonly state via statfs to MDS
905 Details : Flags in the statfs returned from OSTs indicate whether the
906 OST is in a degraded RAID state, or if the filesystem has
907 turned read-only after a filesystem error is detected.
912 Description: don't panic if EPROTO was hit when reading symlink
913 Details : correctly handling request reference in error cases.
915 Severity : enhancement
917 Description: Add LustreNetLink, a kernel-userspace communcation path.
919 Severity : enhancement
921 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
926 Description: access to llog context before init.
927 Details : move handling CATALOGS file at osc layer and forbid access to llog
931 Frequency : rare, only when client is writing to OST on local node
933 Description: Avoid deadlock for local client writes
934 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
935 memory freeing context. This allows OST threads to set the
936 PF_MEMALLOC flag on task structures in order to allocate memory
937 from reserved pools and complete IO.
938 Use GFP_HIGHUSER for OST allocations for non-local client writes,
939 so that the OST threads generate memory pressure and allow
940 inactive pages to be reclaimed.
942 Severity : enhancement
944 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
949 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
950 Details : move ldlm namespace creation in setup phase to avoid grab
951 _lprocfs_lock with cli_sem held.
955 Description: Temporarily disable grant shrink.
956 Details : Disable the feature for debugging.
959 Frequency : only when formatting test filesystems
961 Description: Unable to run several mkfs.lustre on loop devices at the same time
962 Details : mkfs.lustre returns error 256 on the concurrent loop devices
963 formatting. The solution is to proper handle the error.
965 Severity : enhancement
967 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
969 Severity : enhancement
971 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
976 Description: resolve race between obd_disconnect and class_disconnect_exports
977 Details : if obd_disconnect will be called to already disconnected export he
978 forget release one reference and osc module can't unloaded.
980 Severity : enhancement
982 Description: Allow tuning service thread via /proc
983 Details : For each service a new
984 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
985 created that can be used to set min/max thread counts, and get the
986 current number of running threads.
991 Descriptoin: don't return error if have partially created objects for file.
992 Details : lov_update_create_set uses set->set_success as index for created
993 objects, so if some requests will be failed, they will have hole
994 at end of array and qos_shrink_lsm for allocate correct lsm.
996 Severity : enhancement
998 Description: Update OFED support to 1.4.1
1003 Description: Reduce small size read RPC
1004 Details : Set read-ahead limit for every file and only do read-ahead when
1005 available read-ahead pages are bigger than 1M to avoid small size
1008 Severity : enhancement
1010 Description: move AT tunable parameters for more consistent usage
1011 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
1013 Severity : enhancement
1015 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
1016 Details : allow skip disconnected ost for send statfs request and hide error
1022 Description: fix racy locking of mballoc block bitmaps causing BUG
1023 Details : The locking of the mballoc buddy bitmap and the in-memory
1024 block bitmap was using two different spin locks in some
1025 cases. This made it possible to incorrectly access the
1026 mballoc bitmap while another process was modifying it,
1027 causing a sanity assertion to fail. While no on-disk corruption
1028 was reported, there was some risk of this happening.
1031 Frequency : rare, on llog test 6
1033 Descriptoin: don't allow connect to already connected import
1034 Details : allowing connect to already connected import is hide connecting problem.
1039 Descriptoin: allow kill process which wait statahead result
1040 Details : for some reasons 'ls' can stick in waiting result from statahead,
1041 in this case need way for kill this process.
1043 Severity : enhancement
1045 Description: Add state history info file, enhance import info file
1046 Details : Track import connection state changes in a new osc/mdc proc file;
1047 add overview-type data to the osc/mdc import proc file.
1049 Severity : enhancement
1051 Description: MDS create should not wait for statfs RPC while holding DLM lock.
1053 Severity : enhancement
1055 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
1060 Descriptoin: OST grant too much space to client even there are not enough space.
1061 Details : Client will shrink its grant cache to OST if there are no write
1062 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
1063 this grant cache if there are already not enough avaible space
1064 (left_space < total_clients * 32M).
1067 Frequency : start MDS on uncleanly shutdowned MDS device
1069 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
1070 Details : stay in waiting mds<>ost recovery finished produce random bugs
1071 due race between two ll_sync thread for one lov target. send
1072 ACTIVATE event only if connect realy finished and import have
1076 Frequency : rare, connect and disconnect target at same time
1078 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1079 Details : don't call obd_disconnect under lov_lock. this long time
1080 operation and can block ptlrpcd which answer to connect request.
1085 Descriptoin: don't lose wakeup for imp_recovery_waitq
1086 Details : recover_import_no_retry or invalidate_import and import_close can
1087 both sleep on imp_recovery_waitq, but we was send only one wakeup
1091 Frequency : always with long access acl
1093 Descriptoin: mds can't pack reply with long acl.
1094 Details : mds don't control size of acl but they limited by reint/getattr
1097 Severity : enhancement
1099 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1101 Severity : enhancement
1103 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1106 Frequency : start MDS on uncleanly shutdowned MDS device
1108 Descriptoin: aborting recovery hang on MDS
1109 Details : don't throttle destroy RPCs for the MDT.
1112 Frequency : on remount
1114 Description: external journal device not working after the remount
1115 Details : clear dev_rdonly flag for external journal devices in
1121 Description: shutdown vs evict race
1122 Details : client_disconnect_export vs connect request race.
1123 if client will evicted at this time - we start invalidate
1124 thread without referece to import and import can be freed
1128 Frequency : rare, need acl's on inode.
1130 Description: client can't handle ost additional correctly
1131 Details : if ost was added after client connected to mds client can have
1132 hit lnet_try_match_md ... to big messages to wide striped files.
1133 in this case need teach client to handle config events about add
1134 lov target and update client max ea size at that event.
1136 Severity : enhancement
1138 Description: Changelogs
1139 Details : Changelogs are a lightweight mechanism to track filesystem
1140 metadata and namespace changes. The changelog is recorded
1141 permanently on the MDTs, and is periodically "consumed" / purged
1142 when records are no longer needed.
1144 Severity : enhancement
1146 Description: compact fld format with extents
1147 Details : Store range of seq rather than every seq in FLD. Seq
1148 controller update FLD rather than clients. In Case of CMD, mdt0
1149 has FLD, all other metadata server act as non persistent proxy
1150 for FLD queries and cache fld entries in fld cache.
1155 Description: don't skip ost target if they assigned to file
1156 Details : Drop slow OSCs if we can, but not for requested start idx.
1157 This means "if OSC is slow and it is not the requested
1158 start OST, then it can be skipped, otherwise skip it only
1159 if it is inactive/recovering/out-of-space.
1163 Description: more cleanup in mds_lov
1164 Details : not send LOV EA under replay, we can't know about they size at this
1165 time. Don't allow client connect to mds before any ost connected,
1166 for avoid problems with LOV EA size and returning EIO to client.
1168 Severity : enhancement
1170 Description: Interoperability at server side (Disk interoperability)
1172 Severity : enhancement
1174 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1176 Severity : enhancement
1178 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1180 Severity : enhancement
1182 Description: New client IO stack (CLIO).
1184 Severity : enhancement
1186 Description: Commit on sharing. Eliminate inter-client dependencies between
1187 uncommitted transactions by doing transaction commits.
1188 Thereby clients may recovery independently.
1191 Frequency : Create a symlink file with a very long name
1193 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1194 Details : If there is no extra space in the request for early cancels,
1195 ldlm_req_handles_avail() returns 0 instead of a negative value.
1197 Severity : enhancement
1199 Description: Add /proc entry for import status
1200 Details : The mdc, osc, and mgc import directories now have
1201 an import directory that contains useful import data for debugging
1202 connection problems.
1204 Severity : enhancement
1206 Description: Re-disable certain /proc logging
1207 Details : Enable and disable client's offset_stats, extents_stats and
1208 extents_stats_per_process stats logging on the fly.
1211 Frequency : Only on FC kernels 2.6.22+
1213 Description: oops in statahead
1214 Details : Do not drop reference count for the dentry from VFS when lookup,
1215 VFS will do that by itself.
1217 Severity : enhancement
1219 Description: Generic /proc file permissions
1220 Details : Set /Proc file permissions in a more generic way to enable non-
1221 root users operate on some /proc files.
1225 Description: Hitting mdc_commit_close() ASSERTION
1226 Details : Properly handle request reference release in
1227 ll_release_openhandle().
1231 Description: quota recovery deadlock during mds failover
1232 Details : This patch includes att18982, att18236, att18237 in bz14840.
1234 1. fix osts hang when mds does failover with quotaon
1235 2. prevent watchdog storm when osts threads wait for the
1240 Frequency : only patchless client
1241 Description: add workaround for race between add/remove dentry from hash
1243 Severity : enhancement
1245 Description: Allow OST glimpses to return PW locks
1249 Description: LBUG when llog conf file is full
1250 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1254 Description: Prevent import from entering FULL state when server in recovery
1258 Description: service mount cannot take device name with ":"
1259 Details : Only when device name contains ":/" will mount treat it as
1265 Description: replace ptlrpcd with the statahead thread to interpret the async
1266 statahead RPC callback
1270 Frequency : on recovery
1271 Description: I/O failures after umount during fail back
1272 Details : if client reconnected to restarted server we need join to recovery
1273 instead of find server handler is changed and process self
1274 eviction with cancel all locks.
1276 Severity : enhancement
1278 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1280 Severity : enhancement
1282 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1284 Severity : enhancement
1286 Description: Upcall on Lustre log has been dumped
1287 Details : Allow for a user mode script to be called once a Lustre log has
1288 been dumped. It passes the filename of the dumped log to the
1289 script, the location of the script can be specified via
1290 /proc/sys/lnet/debug_log_upcall.
1295 Description: avoid idr_remove called for id which is not allocated.
1296 Details : Move assigment s_dev for clustered nfs to end of initialization,
1297 to avoid problem with error handling.
1302 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1303 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1304 into CONN_USED_HASH and this prodice warning when put connection
1305 again in unused hash.
1308 Severity : enhancement
1310 Description: File striping can now be set to use an arbitrary pool of OSTs.
1312 Severity : enhancement
1314 Description: Export bytes_read/bytes_write count on OSC/OST.
1318 Description: Early reply size mismatch, MGC loses connection
1319 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1320 the connect flags are properly negotiated.
1325 Description: quotas are not honored with O_DIRECT
1326 Details : all writes with the flag O_DIRECT will use grants which leads to
1327 this problem. Now using OBD_BRW_SYNC to guard this.
1331 Description: add quota statistics
1332 Details : 1. sort out quota proc entries and proc code.
1333 2. add quota statistics
1335 Severity : enhancement
1337 Description: enable quota support for HEAD.
1341 Description: Properly propagate oinfo flags from lov to osc for statfs
1342 Details : restore missing copy oi_flags to lov requests.
1344 Severity : enhancement
1346 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1347 : l_getgroups(8), lst(8), routerstat(8)
1348 Details : included man pages for llobdstat(8), llstat(8),
1349 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1351 Severity : enhancement
1353 Description: configure's --enable-quota should check the
1354 : kernel .config for CONFIG_QUOTA
1355 Details : configure is terminated if --enable-quota is passed but
1356 : no quota support is in kernel
1360 Description: Remove portals compatibility
1361 Details : Remove portals compatibility, not interoperable with releases
1366 Description: Resolve device initialization race
1367 Details : Prevent proc handler from accessing devices added to the
1368 obd_devs array but yet be intialized.
1370 Severity : enhancement
1372 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1374 Severity : enhancement
1376 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1381 Description: Using wrong pointer in osc_brw_prep_request
1382 Details : Access to array[-1] can produce panic if kernel compiled with
1383 CONFIG_PAGE_ALLOC enabled
1387 Description: Client runs out of low memory
1388 Details : Consider only lowmem when counting initial number of llap pages
1392 Description: *optional* service tags registration
1393 Details : if the "service tags" package is installed on a Lustre node
1394 When the filesystem is mounted, a local-node service tag will
1395 be created. See http://inventory.sun.com/ for more information
1396 about the Service Tags asset management system.
1400 Description: Kernel BUG tries to release flock
1401 Details : Lustre does not destroy flock lock before last reference goes
1402 away. So always drop flock locks when client is evicted and
1403 perform unlock regardless of successfulness of speaking to MDS.
1407 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1411 Description: sanity test 65a fails if stripecount of -1 is set
1412 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1417 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1418 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1421 Severity : enhancement
1423 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1427 Description: do not process already freed flock
1428 Details : flock can possibly be freed by another thread before it reaches
1429 to ldlm_flock_completion_ast.
1433 Description: LBUG during stress test
1434 Details : Need properly lock accesses the flock deadlock detection list.
1438 Description: oops in page fault handler
1439 Details : kernel page fault handler can return two special 'pages' in error
1440 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1444 Description: timeout with invalidate import.
1445 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1446 should be handled by ptlrpcd. This produce long age waiting and
1447 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1449 Severity : enhancement
1451 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1455 Description: enable MGS and MDT services start separately
1456 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1457 a co-located MGS without starting the MGS, which is a complement
1458 to 'nosvc' mount option.
1462 Frequency : after recovery
1463 Description: precreate to many object's after del orphan.
1464 Details : del orphan st in oscc last_id == next_id and this triger growing
1465 count of precreated objects. Set flag LOW to skip increase count
1466 of precreated objects.
1470 Frequency : rare, on clear nid stats
1471 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1472 Details : when clean nid stats sometimes try destroy live entry,
1473 and this produce panic in free.
1477 Description: Stack overflow during MDS log replay
1478 ease stack pressure by using a thread dealing llog_process.
1482 Description: wait until IO finished before start new when do lock cancel.
1483 Details : VM protocol want old IO finished before start new, in this case
1484 need wait until PG_writeback is cleared until check dirty flag and
1485 call writepages in lock cancel callback.
1487 Severity : enhancement
1489 Description: using special macro for print time and cleanup in includes.
1493 Description: mds_mfd_close() ASSERTION(rc == 0)
1494 Details : In mds_mfd_close(), we need protect inode's writecount change
1495 within its orphan write semaphore to prevent possible races.
1499 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1503 Frequency : rare, on shutdown ost
1504 Description: don't hit live lock with umount ost.
1505 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1506 use shrink_dcache_sb instead.
1510 Description: don't panic with use echo client
1511 Details : echo client pass NULL as client nid pointer and this produce null
1512 pointer dereference.
1516 Description: fix build on ppc32
1517 Details : compile code with -m64 flag produce wrong object file for ppc32.
1521 Description: add message levels for liblustreapi
1525 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1526 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1527 will result in an -EAGAIN and in the exit call path we call
1528 alloc_rr() which will with increasing aggressiveness attempt to
1529 aquire precreated objects on the minimum number of required OSCs.
1533 Description: Use old size assignment to avoid deadlock
1534 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1535 the scheduling while holding a spinlock. We do not need locking
1536 for size in ll_update_inode() because size is only updated from
1537 the MDS for directories or files without objects, so there is no
1538 other place to do the update, and concurrent access to such inodes
1539 are protected by the inode lock.
1543 Description: resolve "_IOWR redefined" build error on SLES10
1547 Description: dump the memory debugging after all modules are unloaded to
1548 suppress false negative in conf_sanity test 39
1550 Severity : enhancement
1552 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1557 Description: fix SLES kernel versioning
1558 Details : the kernel version for our SLES 10 kernel did not include a "-"
1559 before the "smp" at the end. while this was not a problem in
1560 general, it did mean that software trying to use the kernel
1561 version to try to detect a vendor specific kernel would fail.
1562 this was most evident by the OFED build scripts.
1566 Description: Don't update lov_desc members until making sure they are valid
1567 Details : When updating lov_desc members via proc fs, need fix their
1568 validities before doing the real update.
1572 Description: don't put request into delay list while invalidate in flight.
1573 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1574 import in flight. this produce timeout for invalidate and sometimes
1575 can cause stale data.
1579 Frequency : on ppc only
1580 Description: not convert ost objects for directory because it's not exist.
1581 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1585 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1587 Severity : enhancement
1589 Description: Update to support 2.6.22.14 vanilla kernel.
1593 Frequency : rare, on recovery
1594 Description: read procfs can produce deadlock in some situation
1595 Details : Holding lprocfs lock which send rpc can produce block for destroy
1596 obd objects and this also block reconnect with -EALREADY. This
1597 isn't fix all lprocfs bugs - but make it rare.
1599 Severity : enhancement
1601 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1604 Frequency : frequent on X2 node
1606 Description: mdc_set_open_replay_data LBUG
1607 Details : Set replay data for requests that are eligible for replay.
1611 Description: lustre_mgs: operation 101 on unconnected MGS
1612 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1613 MGC, and late on MGC cannot successfully connect to MGS and a lot
1614 of the error messages complaining that MGS is not connected.
1618 Frequency : on network error
1619 Description: panic with double free request if network error
1620 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1621 but it's true only for synchronus enqueue, for async enqueue
1622 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1625 Severity : enhancement
1627 Description: client-side metadata stat-ahead during readdir(directory readahead)
1628 Details : perform client-side metadata stat-ahead when the client detects
1629 readdir and sequential stat of dir entries therein
1632 Frequency : on start mds
1634 Description: Implement get_info(last_id) in obdfilter.
1637 Frequency : occasional
1639 Description: Correctly check stale fid, not start epoch if ost not support SOM
1640 Details : open with flag O_CREATE need set old fid in op_fid3 because
1641 op_fid2 was overwritten with new generated fid, but mds can answer
1642 with one of these two fids and both is not stale. Setattr
1643 incorrectly started an epoch and assume will be called
1644 done_writing, but without SOM done_writing ever being called.
1647 Frequency : rare, depends on device drivers and load
1649 Description: MDS or OSS nodes crash due to stack overflow
1650 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1651 In some cases, in conjunction with device drivers that use a lot
1652 of stack the MDS (or possibly OSS) service threads could overflow
1653 the stack. One change which was identified to consume additional
1654 stack has been reworked to avoid the extra stack usage.
1657 Frequency : occasional
1659 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1660 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1661 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1662 oscc_has_objects and see OSC has no objests and call
1663 oscc_internal_create to resend create request.
1665 Severity : enhancement
1667 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1669 Severity : enhancement
1671 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1674 Frequency : very rare
1676 Description: Fix replay if there is an un-replied request and open
1677 Details : In some cases, older replay request will revert the
1678 mcd->mcd_last_xid on MDS which is used to record the client's
1679 latest sent request.
1681 Severity : enhancement
1683 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1685 Severity : enhancement
1687 Description: Add rhel5 support to HEAD.
1689 Serverity : enhancement
1691 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1696 Description: Don't allow skipping OSTs if index has been specified.
1697 Details : Don't allow skipping OSTs if index has been specified, make
1698 locking in internal create lots better.
1702 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1703 Details : access to bitfield in structure is always rounded to long
1704 and this produce problem with not atomic change any bit.
1708 Description: Lustre make rpms failed.
1709 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1710 builds Lustre rpms from tarball.
1713 Frequency : rare on shutdown ost
1715 Description: If llog cancel was not send before clean_exports phase, this can
1716 produce deadlock in llog code.
1717 Details : If llog thread has last reference to obd and call class_import_put
1718 this produce deadlock because llog_cleanup_commit_master wait when
1719 last llog_commit_thread exited, but this never success because was
1720 called from llog_commit_thread.
1724 Description: allow userland application know is lost one of stripes.
1725 Details : fill lvb_blocks with error code on ost and return it to
1726 application if error flag found.
1730 Description: NULL lov_tgts causing MDS oops
1731 Details : more safe checks for NULL lov_tgts for avoid oops.
1733 Severity : enhancement
1735 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1739 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1740 Details : If an OST is down the MDS will hang indefinitely in
1741 obd_statfs_rqset() waiting for the statfs data. While for
1742 MDS QOS usage of statfs, it should not stuck in waiting.
1744 Severity : enhancement
1746 Description: remote_acl support
1747 Details : Support ACL-based permission check for remote user.
1748 Support setfacl/getfacl for remote user with the utils
1749 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1750 the system "{s,g}etfacl" utils.
1752 Severity : enhancement
1754 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1756 Severity : enhancement
1758 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1762 Description: make mgs_setparam() handle fsname containing dash
1763 Details : fsname containing a dash does not work with lctl conf_param
1765 Severity : enhancement
1767 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1769 Severity : enhancement
1771 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1775 Frequency : rare, at shutdown
1776 Description: access already free / zero obd_namespace.
1777 Details : if client_disconnect_export was called without force flag set,
1778 and exist connect request in flight, this can produce access to
1779 NULL pointer (or already free pointer) when connect_interpret
1780 store ocd flags in obd_namespace.
1784 Frequency : only at startup
1785 Description: not alloc memory with spinlock held.
1786 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1787 if any spinlock held.
1789 Severity : enhancement
1791 Description: make lustre randomly fail allocating memory
1792 Details : Make lustre randomly failed allocating memory for testing purpose.
1794 Severity : enhancement
1796 Description: lost problems with lov objid file
1797 Details : Fixes some scability and access to not inited memory problems
1798 in work with lov objdid file.
1803 Description: lfs find does not continue on file error
1804 Details : Continue other files processing when a file/dir is absent.
1808 Description: Inconsistent usage of lustre_pack_reply()
1809 Details : Standardize the usage of lustre_pack_reply() such that it
1810 always generate a CERROR on failure.
1813 Frequency : occasional
1815 Description: MDS hang or stay in waiting lock
1816 Details : If client receive lock with CBPENDING flag ldlm need send lock
1817 cancel as separate rpc, to avoid situation when cancel request
1818 can't processed due all i/o threads stay in wait lock.
1822 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1826 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1830 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1834 Description: Update to RHEL4 latest kernel.
1836 Severity : enhancement
1838 Description: Build SLES10 patchless client fails
1839 Details : The configure was broken by run ./configure with
1840 --with-linux-obj=.... argument for patchless client. When the
1841 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1842 can't search header adequately. Use absolute path such as
1843 -I($LINUX)/include instead.
1847 Description: interrupt oig_wait produce painc on resend.
1848 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1849 private set, and this produce situation when rq_ptlrpcd_data not
1850 copyed to new allocated request and triggered LBUG on assert
1851 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1852 ptlrpcd set if request is changed and can be safety changed to use
1857 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1858 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1859 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1860 these macros and replace them with their difinitions instead.
1864 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1865 Details : Update which_patch & target file for SLES10 latest kernel.
1868 Description: Remove client patches from SLES 10 kernel.
1869 Details : This causes SLES 10 clients to behave as patchless clients
1870 even on a Lustre-patched (server) kernel.
1872 Severity : enhancement
1874 Description: self-adjustable client's lru lists
1875 Details : use adaptive algorithm for managing client cached locks lru
1876 lists according to current server load, other client's work
1877 pattern, memory activities, etc. Both, server and client
1878 side namespaces provide number of proc tunables for controlling
1881 Severity : enhancement
1883 Description: light-weight GSS support
1884 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1885 and reduce performance overhead.
1887 Severity : enhancement
1889 Description: Linux keyring support
1890 Details : Support using service of Linux keyring for Lustre GSS internal
1891 context refresh/cache mechanism.
1895 Description: Fix errors in lfs documentation
1896 Details : Fixes man pages
1900 Description: don't use GFP_* in generic Lustre code.
1901 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1905 Description: obdclass is limited by single OBD_ALLOC(idarray)
1906 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1910 Description: warnings with build patchless client with vanila 2.6.19 and up
1911 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1912 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1916 Frequency : Only for SLES
1917 Description: sanity_quota fail test_1
1918 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1919 file, which makes TSTID[2] inunique.
1923 Frequency : Only for SLES9
1924 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1925 Details : Update target/ChangeLog/which_patch .
1929 Frequency : Only for test_10 in sanity-quota.sh
1930 Description: a bug in quota test code
1931 Details : checking a test flag in a wrong place
1935 Frequency : Only for test_13 in sanity-quota.sh
1936 Description: a bug in quota test script
1937 Details : shouldn't check overfull allocated quota
1941 Description: jbd statistics
1942 Details : Port older jbd statistics patch for sles10
1944 Severity : enhancement
1946 Description: Add printing inode info into message about error in writepage.
1951 Description: reply_lock_interpret crash due to race with it and lock cancel.
1952 Details : Do not replay locks that are being cancelled. Do not reference
1953 locks by their address during replay, just by their handle.
1957 Frequency : When flocks are used.
1958 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1959 Details : Flock locks might destroy just granted lock if it could be merged
1960 with another existing flock, this is done in completion handler,
1961 so teach ldlm_cli_enquque_fini that this is a valid case for
1967 Description: Oops in read and write path when failing to allocate lock.
1968 Details : Check if lock allocation failed and return error back.
1972 Description: lstripe command fails for valid OST index
1973 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1974 instead of lov->desc.ld_active_tgt_count.
1978 Description: sanity.sh failed test 103
1979 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1984 Description: df doesn't work properly if diskfs blocksize != 4K
1985 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1989 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1990 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1992 Severity : enhancement
1994 Description: Adaptive timeouts
1995 Details : RPC timeouts adapt to changing server load and network
1996 conditions to reduce resend attempts and improve recovery time.
2000 Description: llapi_file_create() does not allow some changes
2001 Details : add llapi_file_open() that allows specifying the mode and
2002 open flags, and also returns an open file handle.
2006 Description: merge and cleanup kernel patches.
2007 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
2011 Description: Add journal checksum support.(Kernel part)
2012 Details : The journal checksum feature adds two new flags i.e
2013 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
2014 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
2015 indicates that the commit block contains the checksum for
2016 the blocks described by the descriptor blocks. Now commit
2017 record can be sent to disk without waiting for descriptor
2018 blocks to be written to disk. This behavior is controlled
2019 using JBD2_FEATURE_ASYNC_COMMIT flag.
2023 Description: OSS needs mutliple precreate threads
2024 Details : Add ability to start more than one create thread per OSS.
2028 Description: Sanity.sh test_65k failed: setstripe should have succeeded
2029 Details : execute lfs setstripe on client
2033 Description: mds_obd_create error creating tmp object
2034 Details : When the user sets quota on root, llog will be affected and can't
2035 create files and write files.
2038 Frequency : Always on ia64 patchless client, and possibly others.
2040 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
2041 Details : This allows the patchless client to be loaded on architectures
2042 without this export.
2046 Description: RedHat Update kernel for RHEL5
2047 Details : Add the kernel config file for RHEL5.
2051 Description: RedHat Update kernel for RHEL5
2052 Details : Modify the kernel config file more closer RHEL5.
2056 Description: Build failure against Centos5 (RHEL5)
2057 Details : Define PAGE_SIZE when it isn't present.
2061 Description: test_7 on sanity-quota.sh can't be used on separate machines
2062 Details : add facet to handle it
2066 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
2067 Details : with NFS, the anon dentry's parent was set to itself in
2068 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
2069 corresponding dentry other than use rec->ur_name.
2071 Severity : enhancement
2073 Description: lfs setstripe enhancement
2074 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2078 Description: enable data checksumming by default
2079 Details : enable checksum by default, allow --disable-checksum
2080 configure option and "-o nochecksum" mount option. Checksums
2081 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2085 Description: lustre support for RHEL5
2086 Details : Add support for RHEL5.
2090 Description: Client eviction due to failover config
2091 Details : after a connection loss, the lustre client should attempt to
2092 reconnect to the last active server first before trying the
2093 other potential connections.
2097 Description: when mds and osts use different quota unit(32bit and 64bit),
2098 quota will be released repeatly.
2099 Details : void sending multiple quota reqs to mds, which will keep the
2100 status between the reqs.
2104 Description: osts not allocated evenly to files
2105 Details : change the condition to increase offset_idx
2108 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2110 Description: Data corruption for OSTs that are formatted larger than 2TB
2112 Details : When generating the bio request for lustre file writes the
2113 sector number would overflow a temporary variable before being
2114 used for the IO. The data reads correctly from Lustre (which
2115 will overflow in a similar manner) but other file data or
2116 filesystem metadata may be corrupted in some cases.
2120 Description: Tune the kernel for good SCSI performance.
2121 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2122 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2127 Description: rewrite ext2-derived code in obdclass/uuid.c
2128 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2129 from scratch preserving functionality.
2133 Description: "lfs find -obd UUID" prints directories
2134 Details : "lfs find -obd UUID" will return all directory names instead
2135 of just file names. It is incorrect because the directories
2136 do not reside on the OSTs.
2140 Description: use i_size_read and i_size_write in 2.6 port
2141 Details : replace inode->i_size access with i_size_read/write()
2144 Frequency : when removing large files
2146 Description: scheduling issue during removal of large Lustre files
2147 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2148 It causes scheduling issues when removing large files (17TB in the
2152 Frequency : only with liblustre clients on XT3
2154 Description: evictions taking too long
2155 Details : allow llrd to evict clients directly on OSTs
2158 Frequency : only on ppc
2160 Description: /proc/fs/lustre/devices broken on ppc
2161 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2162 We should make sure the type of 'index' is loff_t and then cast
2163 explicitly as needed below. Do not assign an explicitly cast
2167 Frequency : only for rhel5
2169 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2170 Details : Modify the target file & which_kernel.
2172 Severity : enhancement
2174 Description: omit set fsid for export NFS
2175 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2176 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2180 Frequency : Always, for kernels after 2.6.16
2181 Description: Fix warning idr_remove called for id=.. which is not allocated.
2182 Details : Last kernels save old s_dev before kill super and not allow
2183 to restore from callback - restore it before call kill_anon_super.
2187 Description: buffer overruns could theoretically occur
2188 Details : llapi_semantic_traverse() modifies the "path" argument by
2189 appending values to the end of the origin string, and a
2190 overrun may occur. Adding buffer overrun check in liblustreapi.
2194 Description: Fix error on 'ls .' at the top of the Lustre mount.
2195 Details : Don't revalidate dentry if it is a root dentry.
2199 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2200 Details : Modify vm-tunables-rhel4.patch.
2204 Description: Kernel config for 2.6.18-vanilla.
2205 Details : Modify targets/2.6-vanilla.target.in.
2206 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2207 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2208 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2209 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2213 Description: improve handling recoverable errors
2214 Details : if request processig with error which can be recoverable on server
2215 request should be resend, otherwise page released from cache and
2220 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2221 Details : Modify target file & which_patch.
2222 A flaw was found in the IA32 system call emulation provided
2223 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2224 value could be stored in the %RAX register, which could trigger an
2225 out-of-bounds system call table access. An untrusted local user
2226 could exploit this flaw to run code in the kernel
2227 (ie a root privilege escalation). (CVE-2007-4573).
2231 Description: O_DIRECT bypasses client statistics.
2232 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2233 read_ahead_stats were updated. copied the stats section from
2234 osc_send_oap_rpc() into async_internal().
2238 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2242 Description: change order of libsysio includes
2243 Details : '#include sysio.h' should always come before '#include xtio.h'
2247 Description: handle "serious error: objid * already exists" more gracefully
2248 Details : If LAST_ID value on disk is smaller than the objects existing in
2249 the O/0/d* directories, it indicates disk corruption and causes an
2250 LBUG(). If the object is 0-length, then we should use the existing
2251 object. This will help to avoid a full fsck in most cases.
2253 Severity : enhancement
2255 Description: adapt the lustre_config script to support the upgrade case
2256 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2257 server targets to 1.6 in parallel.
2261 Description: To avoid grant space > avaible space when the disk is almost
2262 full. Without this patch you might see the error "grant XXXX >
2263 available" or some LBUG about grant, when the disk is almost
2265 Details : In filter_check_grant, for non_grant cache write, we should
2266 check the left space by if (*left > ungranted + bytes), instead
2267 of (*left > ungranted), because only we are sure the left space
2268 is enough for another "bytes", then the ungrant space should be
2269 increase. In client, we should update cl_avail_grant only there
2270 is OBD_MD_FLGRANT in the reply.
2274 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2275 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2276 described in CVE-2007-4573. This problem could allow untrusted
2277 local users to gain root access.
2280 Frequency : when using O_DIRECT and quotas
2282 Description: Incorrect file ownership on O_DIRECT output files
2283 Details : block usage reported by 'lfs quota' does not take into account
2284 files that have been written with O_DIRECT.
2289 Description: touch file failed when fs is not full
2290 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2291 otherwise we can get ENOSP while fs is not full.
2295 Description: parallel lock callbacks
2296 Details : Instead of sending blocking and completion callbacks as separated
2297 requests, adding them to a set and sending in parallel.
2300 Frequency : only for Cray XT3
2301 Bugzilla : 12829/13455
2302 Description: Changing primary group doesn't change the group lustre assigns to
2304 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2305 overridden with the primary group provided by the group upcall,
2306 whereas the supplied fsgid can be trusted if it is in the list of
2307 supplementary groups returned by the group upcall.
2309 Severity : enhancement
2311 Description: Allow masking D_WARNING, D_ERROR messages from console
2312 Details : Console messages can now be disabled via lnet.printk.
2316 Description: User code with malformed file open parameter crashes client node
2317 Details : Before packing join_file req, all the related reference should be
2318 checked carefully in case some malformed flags cause fake
2319 join_file req on client.
2323 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2324 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2325 mode is equal to the granted mode. However, it should also check
2326 that LDLM_FL_CP_REQD is not set.
2330 Description: Heavy nfs access might result in deadlocks
2331 Details : After ELC code landed, it is now improper to enqueue any mds
2332 locks under och_sem, because enqueue might want to decide to
2333 cancel open locks for same inode we are holding och_sem for.
2337 Description: Client eviction while running blogbench
2338 Details : A lot of unlink operations with concurrent I/O can lead to a
2339 deadlock causing evictions. To address the problem, the number of
2340 oustanding OST_DESTROY requests is now throttled to
2341 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2342 callbacks are processed in priority.
2346 Description: enable ACLs on MDS by default
2347 Details : ACLs must be enabled on MDS by default.
2350 Frequency : PPC/PPC64 only
2352 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2353 Details : fix duplicated definitions between asm-ppc64/types.h and
2354 lustre_types.h on PPC.
2357 Frequency : PPC/PPC64 only
2359 Description: asm-ppc/segment.h does not exist
2360 Details : fix compile issue on PPC.
2364 Description: better handle error messages in extents code
2367 Frequency : RHEL4 only
2369 Description: mkfs is very slow on IA64/RHEL4
2370 Details : A performance regression has been discovered in the MPT Fusion
2371 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2372 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2373 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2375 Severity : enhancement
2377 Description: SNMP support enhancement
2378 Details : Adding total number of sampled request for an MDS node in snmp
2381 Severity : enhancement
2383 Description: Optimize ldlm waiting list processing for PR extent locks
2384 Details : When processing waiting list for read extent lock and meeting read
2385 lock that is same or wider to it that is not contended, skip
2386 processing rest of the list and immediatelly return current
2387 status of conflictness, since we are guaranteed there are no
2388 conflicting locks in the rest of the list.
2392 Description: Time out and refuse to reconnect
2393 Details : When the failover node is the primary node, it is possible
2394 to have two identical connections in imp_conn_list. We must
2395 compare not conn's pointers but NIDs, otherwise we can defeat
2396 connection throttling.
2400 Description: port llog fixes from b1_6 into HEAD
2401 Details : Port llog reference couting and some llog cleanups from b1_6
2402 (bug 10800) into HEAD, for protect from panic and access to already
2403 free llog structures.
2407 Description: Detect stride IO mode in read-ahead
2408 Details : When a client does stride read, read-ahead should detect that and
2409 read-ahead pages according to the detected stride pattern.
2413 Description: data checksumming impacts single node performance
2414 Details : add support for several checksum algorithm. Currently, only CRC32
2415 and Adler-32 are supported. The checksum type can be changed on
2416 the fly via /proc/fs/lustre/osc/*/checksum_type.
2420 Description: use adler32 for page checksums
2421 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2426 Description: build for x2 fails
2427 Details : fix compile issue on Cray systems.
2431 Description: Properly match for duplicate locks
2432 Details : Due to different lock order from skiplists code, we need to
2433 traverse entire list for now
2436 Frequency : only on PPC/SLES10
2438 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2439 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2440 be defined. Add a hack in mkfs_lustre.c to work around this compile
2445 Description: LASSERT on MDS when client holding flock lock dies
2446 Details : ldlm pool logic depends on number of granted locks equal to
2447 number of released locks which is not true for flock locks, so
2448 just exclude such locks from consideration.
2452 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2453 Details : Use fsfilt_sync() for both the whole filesystem sync and
2454 individual file sync to eliminate dangerous inode locking
2455 with I_LOCK that can lead to a deadlock.
2459 Description: performance in 1.6.3
2460 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2461 sure that 1MB requests are not fragmented by the block layer.
2463 Severity : enhancement
2465 Description: organize the server-side client stats on per-nid basis
2466 Details : Change the structure of stats under obdfilter and mds to
2474 The "uuid"s file would list the uuids of _active_ exports.
2475 And the clear entry is to clear all stats and stale nids.
2477 Severity : enhancement
2479 Description: eliminate client locks in face of contention
2480 Details : file contention detection and lockless i/o implementation
2481 for contended files.
2485 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2488 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2490 Description: MDS may lose file striping (and hence file data) in some cases
2491 Details : If there are additional extended attributes stored on the MDS,
2492 in particular ACLs, SELinux, or user attributes (if user_xattr
2493 is specified for the client mount options) then there is a risk
2494 of attribute loss. Additionally, the Lustre file striping
2495 needs to be larger than default (e.g. striped over all OSTs),
2496 and an additional attribute must be stored initially in the
2497 inode and then increase in size enough to be moved to the
2498 external attribute block (e.g. ACL growing in size) for file
2503 Description: skiplist implementation simplification
2504 Details : skiplists are used to group compatible locks on granted list
2505 that was implemented as tracking first and last lock of each
2506 lock group the patch changes that to using doubly linked lists
2510 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2511 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2512 because LASSERT on both the data supplied by a client, and the
2513 data on disk is dangerous and incorrect.
2515 Severity : enhancement
2517 Description: Slow truncate/writes to huge files at high offsets.
2518 Details : Directly associate cached pages to lock that protect those pages,
2519 this allows us to quickly find what pages to write and remove
2520 once lock callback is received.
2524 Description: more ldlm soft lockups
2525 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2526 starve other threads from the resource lock for a long time in
2527 case of long waiting queue, so change the debug level from
2528 D_OTHER to the less frequently used D_INFO.
2530 Severity : enhancement
2532 Description: add -gid, -group, -uid, -user options to lfs find
2536 Description: Hung threads in invalidate_inode_pages2_range
2537 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2538 once one is completed. As a result, some RPCs are stuck in the
2539 queue and are never sent.
2543 Description: filter threads hungs on waiting journal commit
2544 Details : Cleanup filter group llog code, then only filter group llog will
2545 be only created in the MDS/OST syncing process.
2549 Description: Procfs and llog threads access destoryed import sometimes.
2550 Details : Sync the import destoryed process with procfs and llog threads by
2551 the import refcount and semaphore.
2553 Severity : enhancement
2555 Description: openlock cache of b1_6 port to HEAD
2560 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2561 Details : If insertion of an extent fails, then discard the inode
2562 preallocation and free data blocks else it can lead to duplicate
2567 Description: don't always update ctime in ext3_xattr_set_handle()
2568 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2569 In some cases the ctime should not be updated, for example for
2570 2.0->1.8 compatibility it is necessary to delete an xattr and it
2571 should not update the ctime.
2575 Bugzilla : 15713/16362
2576 Description: Assertion in iopen_connect_dentry in 1.6.3
2577 Details : looking up an inode via iopen with the wrong generation number can
2578 populate the dcache with a disconneced dentry while the inode
2579 number is in the process of being reallocated. This causes an
2580 assertion failure in iopen since the inode's dentry list contains
2581 both a connected and disconnected dentry.
2585 Description: assertion failure in ldlm_handle2lock()
2586 Details : fix a race between class_handle_unhash() and class_handle2object()
2587 introduced in lustre 1.6.5 by bug 13622.
2592 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2593 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2598 Description: oops in sd_iostats_seq_show()
2599 Details : unloading/reloading the scsi low level driver triggers a kernel
2600 bug when trying to access the sd iostat file.
2605 Description: Kernel panics during QLogic driver reload
2606 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2607 patch, causing memory corruption.
2612 Description: journal_dev option does not work in b1_6
2613 Details : pass mount option during pre-mount.
2615 Severity : enhancement
2617 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2618 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2619 extent information of a file. It can be used to map logical blocks
2620 in a file to physical blocks in the block device.
2624 Description: LDLM soft lockups - improvement
2625 Details : It is be possible to send the lock handle along with each read
2626 or write request because the client is already doing a lock match
2627 itself so there isn't any reason the OST should have to re-do that
2631 Frequency : only on Cray X2
2633 Description: X2 build failures
2634 Details : fix build failures on Cray X2.
2638 Description: xid & resent requests
2639 Details : Initialize RPC XID from clock at startup (randomly if clock is
2642 Severity : enhancement
2644 Description: Add lustre_start utility to start or stop multiple Lustre servers
2649 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2650 Details : In case of memory pressure, list_del() can be called twice on
2651 req->rq_history_list, causing a kernel oops.
2655 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2656 Details : fix stack overflow in the distributed lock manager by defering
2657 export eviction after a failed AST to the elt thread instead of
2658 handling it in the dlm interpret routine.
2662 Description: Convert some comments to new format.
2663 Details : Update documenting comments to match doxygen conventions.
2667 Description: Grammar fixes.
2668 Details : A couple of trivial spelling fixes.
2672 Description: OSD_COUNTERS-mandatory
2673 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2674 to simplify the code.
2678 Description: simplify cmm_device freeing logic.
2679 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2683 Description: Add lockdep support to dt_object_operations locking interface.
2684 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2685 parameter indicating lock ordering. Update mdd code to use new
2690 Description: Introduce failloc constants for lockless IO tests.
2691 Details : Add two new failloc constants to test lockless IO. Only one of
2692 them in implemented---another is checked in yet to be landed
2697 Description: Add lockdep support for inode mutex.
2698 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2699 in the situations where Lustre has to lock more than one inode
2704 Description: Add optional invariants checking support.
2705 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2706 configure switch. This macro is to be used for consistency and
2707 sanity checks that are too expensive to be left in `production'
2712 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2713 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2718 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2719 Details : Use spin_lock_nested() in (the only) situation where more than
2720 one ldlm_lock is locked simultaneously. Also, fix possible
2721 dead-lock in ldlm_lock_change_resource() by enforcing particular
2726 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2727 Details : Instead of specifying each ldlm_lock call-back through separate
2728 parameter, wrap them into struct ldlm_callback_suite.
2732 Description: Kill join_lru obd method and its callers.
2733 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2734 in memory---a requirement implemented through ->o_join_lru() obd
2735 method in HEAD. Remove this method and its users.
2739 Description: Add asynchronous ldlm ENQUEUE completion handler.
2740 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2741 case that stock ldlm_completion_ast() cannot handle as it waits
2742 until lock is granted. Introduce new ldlm_completion_ast_async()
2743 for this. Also comment ldlm_completion_ast().
2747 Description: ldlm_error <-> errno conversion.
2748 Details : Add functions to map (rather arbitrary) between LDLM error codes
2749 and standard errno values. CLIO needs this to prevent LDLM specific
2750 constants from escaping ldlm and osc.
2754 Description: Kill unused ldlm_handle2lock_ns() function.
2755 Details : Kill unused ldlm_handle2lock_ns() function.
2759 Description: Add lu_ref support to ldlm_lock
2760 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2761 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2762 and ldlm_resource. LDLM interface has to be changed, because code that
2763 releases a reference on a lock, has to "know" what reference this is.
2764 In the most frequent case
2766 lock = ldlm_handle2lock(handle);
2768 LDLM_LOCK_PUT(lock);
2770 no changes are required. When any other reference (received _not_ from
2771 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2772 instead of LDLM_LOCK_PUT().
2774 Arguably, changes are pervasive, and interface requires some discipline
2775 for proper use. On the other hand, it was very instrumental in finding
2776 a few leaked lock references.
2780 Description: Add ldlm_lock_addref_try().
2781 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2782 attempts to addref a lock that might be being canceled
2787 Description: Add ldlm_weigh_callback().
2788 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2789 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2790 hard-coded `number of pages' logic.
2794 Description: Add lockdep annotations to llog code.
2795 Details : Use appropriately tagged _nested() locking calls in the places
2796 where llog takes more than one ->lgh_lock lock.
2800 Description: Add loi_kms_set().
2801 Details : Wrap kms updates into a helper function.
2805 Description: Constify instances of struct lsm_operations.
2806 Details : Constify instances of struct lsm_operations.
2810 Description: lu_conf support.
2811 Details : On a server, a file system object is uniquely identified
2812 by a fid, which is sufficient to locate and load all object
2813 state (inode). On a client, on the other hand, more data are
2814 necessary instantiate an object. Change lu_object_find() and
2815 friends to take additional `lu_conf' argument describing object.
2816 Typically this includes layout information.
2820 Description: lu_context fixes.
2821 Details : Introduce new lu_context functions that are needed on the client
2822 side, where some system threads (ptlrpcd) are shared by multiple
2823 modules, and so cannot be stopped during module shutdown.
2827 Description: Add start and stop methods to lu_device_type_operations.
2828 Details : Introduce two new methods in lu_device_type_operations, that are
2829 invoked when first instance of a given type is created and last one
2830 is destroyed respectively. This is need by CLIO.
2834 Description: Add lu_ref support to struct lu_device.
2835 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2836 track leaked references.
2840 Description: Introduce lu_kmem_descr.
2841 Details : lu_kmem_descr and its companion interface allow to create
2842 and destroy a number of kmem caches at once.
2846 Description: Fix lu_object finalization race.
2847 Details : Fix a race between lu_object_find() finding an object and its
2848 concurrent finalization. This race is (most likely) not possible
2849 on the server, but might happen on the client.
2853 Description: Introduce lu_ref interface.
2854 Details : lu_ref is a debugging module allowing to track references to
2855 a given object. It is quite cpu expensive, and has to be
2856 explicitly enabled with --enable-lu_ref. See usage description
2861 Description: Factor lu_site procfs stats into a separate function.
2862 Details : Separate lu_site stats printing code into a separate function
2863 that can be reused on a client.
2867 Description: Constify instances of struct {lu,dt,md}_device_operations.
2868 Details : Constify instances of struct {lu,dt,md}_device_operations.
2872 Description: Introduce struct md_site and move meta-data specific parts of
2873 struct lu_site here.
2874 Details : Move md-specific fields out of struct lu_site into special struct
2875 md_site, so that lu_site can be used on a client.
2879 Description: Kill mdd_lov_destroy().
2880 Details : Remove unused mdd code.
2884 Description: Add st_block checking to multistat.c.
2885 Details : Add st_block checking to multistat.c.
2889 Description: Add lu_ref support to struct obd_device.
2890 Details : Add lu_ref tracking to obd_device.
2894 Description: Kill obd_set_fail_loc().
2895 Details : Remove unused code.
2899 Description: Add special type for ptlrpc_request interpret functions.
2900 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2901 there. Actual usage will be in CLIO.
2905 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2906 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2907 doesn't work with lockdep.
2911 Description: Add rwv.c test program.
2912 Details : New testing program exercising readv(2) and writev(2) (Qian).
2916 Description: Add sendfile.c test program.
2917 Details : New testing program exercising sendfile(2) (Jay).
2921 Description: Ratelimit a message that can be very frequent.
2922 Details : Ratelimit a memory allocation failure message that can
2927 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2928 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2932 Description: Liblustre build fixes.
2933 Details : Liblustre build fixes.
2937 Description: libcfs: add cfs_{need,cond}_resched() interface.
2938 Details : libcfs: add cfs_{need,cond}_resched() definition and
2939 implementations for Linux, NT, and liblustre.
2941 Severity : enhancement
2943 Description: More exported tunables for mballoc
2944 Details : Add support for tunable preallocation window and new tunables for
2945 large/small requests
2949 Description: Detect corruption of block bitmap and checking for preallocations
2950 Details : Checks validity of on-disk block bitmap. Also it does better
2951 checking of number of applied preallocations. When corruption is
2952 found, it turns filesystem readonly to prevent further corruptions.
2956 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2957 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2958 window to 0. If it does hit cache miss, and read-pattern is still
2959 stride-io mode, does not reset the stride window, but also does not
2960 increase the stride window length in this case.
2964 Frequency : only for big-endian servers
2965 Description: Check if system is big-endian while mounting fs with extents feature
2966 Details : Mounting a filesystem with extents feature will fail on big-endian
2967 systems since ext3-based ldiskfs is not supported on big-endian
2968 systems. This can be over-riden with "bigendian_extents" mount option.
2970 Severity : enhancement
2972 Description: The root squash functionality
2973 Details : A security feature, which is to prevent users from being able
2974 to mount lustre on their desktop, run as root, and delete
2975 all of the files in the filesystem. The goal is accomplished by
2976 remapping user id (UID) and group id (GID) of the root user to
2977 a UID and GID specified by the system administartor via Lustre
2978 configuration management server (MGS). The functionality also
2979 allows to specify sets of clients for which the remapping does
2984 Description: Excessive recovery window
2985 Details : With AT enabled, the recovery window can be excessively long (6000+
2986 seconds). To address this problem, we no longer use
2987 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2988 timeout no longer depends on the service time, it is set to
2989 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2990 time via pb_service_time.
2994 Description: Watchdog triggered on MDS failover
2995 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2996 the OSTs know that the MDS "UUID" can be reused for the same export
2997 from a different NID, so we do not need to wait for the export to be
3001 Frequency : rare, only if using MMP with Linux RAID
3003 Description: MMP doesn't work with Linux RAID
3004 Details : While using HA for Lustre servers with Linux RAID, it is possible
3005 that MMP will not detect multiple mounts. To make this work we
3006 need to unplug the device queue in RAID when the MMP block is being
3007 written. Also while reading the MMP block, we should read it from
3008 disk and not the cached one.
3010 Severity : enhancement
3012 Description: open file using fid
3013 Details : A file can be opened using just its fid, like
3014 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
3017 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
3020 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
3021 Details : add proper locking for creation of jbd_4k slab cache
3025 Description: MMP check in ext3_remount() fails without displaying any error
3026 Details : When multiple mount protection fails during remount, proper error
3029 Severity : enhancement
3031 Description: Allow stripe size to be up to 4G-64k
3032 Details : Fix math logic to allow large stripe sizes.
3036 Description: add check for >8TB ldiskfs filesystems
3037 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
3038 Don't allow >8TB ldiskfs filesystems to be mounted without
3039 force_over_8tb mount option
3044 Descriptoin: OSS complains "too many blocks" and crashes
3045 Details : In filter_commitrw_write():
3046 1. lquota_chkquota();
3047 2. obdo_from_inode();
3048 3. lquota_pending_commit();
3049 "2." has changed uid and gid in this case, then caused
3050 lquota_chkquota() and lquota_pending_commit() to use
3051 different uid and gid. That is the root of the bug.
3055 Descriptoin: getstripe doesn't report stripe count = -1 sanely
3056 Details : Detect and print out the 'stripe count = -1' case properly.
3060 Description: Out or order replies might be lost on replay
3061 Details : In ptlrpc_retain_replayable_request if we cannot find retained
3062 request with tid smaller than one currently being added, add it
3063 to the start, not end of the list.
3065 --------------------------------------------------------------------------------
3067 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
3069 * Support for kernels:
3070 2.6.5-7.283 (SLES 9),
3071 2.6.9-55.EL (RHEL 4),
3072 2.6.16.46-0.14 (SLES 10),
3073 2.6.18.8 vanilla (kernel.org)
3074 * Client support for unpatched kernels:
3075 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3076 2.6.16 - 2.6.22 vanilla (kernel.org)
3077 * Due to recently discovered recovery problems, we do not recommend
3078 using patchless RHEL 4 clients with this or any earlier release.
3079 * Recommended e2fsprogs version: 1.39.cfs8
3080 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3081 * Starting with this release, the ldiskfs backing filesystem required
3082 by Lustre is now in its own package, lustre-ldiskfs. This package
3083 should be installed. It is versioned separately from Lustre and
3084 may be released separately in future.
3088 Description: block reactivating mgc import until all deactivates complete
3089 Details : Fix race when failing back MDT/MGS to itself (testing)
3092 Frequency : at statup only
3094 Description: mds_lov_synchronize race leads to various problems
3095 Details : simultaneous MDT->OST connections at startup can cause the
3096 sync to abort, leaving the OSC in a bad state.
3098 Severity : enhancement
3100 Description: add optional extra BUILD_VERSION info
3101 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3102 to override the lustre version.
3105 Frequency : 2.6.18 servers only
3107 Description: ll_kern_mount() doesn't release the module reference
3108 Details : The ldiskfs module reference count never drops down to 0
3109 because ll_kern_mount() doesn't release the module reference.
3114 Description: server LBUG when using old ost_num_threads parameter
3115 Details : Accept the old ost_num_threads parameter but warn that it
3116 is deprecated, and fix an off-by-one error that caused an LBUG.
3121 Description: Transient SCSI error results in persistent IO issue
3122 Details : iobuf->dr_error is not reinitialized to 0 between two
3126 Frequency : sometimes when underlying device returns I/O errors
3128 Description: OSTs not going read-only during write failures
3129 Details : OSTs are not remounted read-only when the journal commit threads
3130 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3131 instead of the ext3 wrappers.
3135 Description: poor connect scaling with increasing client count
3136 Details : Don't run filter_grant_sanity_check for more than 100 exports
3137 to improve scaling for large numbers of clients.
3140 Frequency : SLES10 only
3142 Description: sanity-quota.sh quotacheck failed: rc = -22
3143 Details : Quotas cannot be enabled on SLES10.
3146 Frequency : liblustre clients only
3148 Description: getdirentries does not give error when run on compute nodes
3149 Details : getdirentries does not fail when the size specified as an argument
3150 is too small to contain at least one entry
3152 Severity : enhancement
3154 Description: Add LNET router traceability for debug purposes
3155 Details : If a checksum failure occurs with a router as part of the
3156 IO path, the NID of the last router that forwarded the bulk data
3157 is printed so it can be identified.
3162 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3163 Details : Due to a race condition, liblustre clients were occasionally
3164 evicted incorrectly.
3166 Severity : enhancement
3168 Description: lfs setstripe use optional parameters instead of postional
3171 Severity : enhancement
3173 Description: Nanosecond timestamp support for ldiskfs
3174 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3175 resolution timestamps. There is not yet support for this at
3176 the Lustre filesystem level.
3179 Frequency : during server recovery
3181 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3182 Details : request with rq_no_resend flag not awake l_wait_event if they get
3186 Frequency : nfs export on patchless client
3188 Description: connectathon hang when test nfs export over patchless client
3189 Details : Disconnected dentry cannot be found with lookup, so we do not need
3190 to unhash it or make it invalid
3193 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3194 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3195 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3200 Description: open req refcounting wrong on reconnect
3201 Details : If reconnect happened between getting open reply from server and
3202 call to mdc_set_replay_data in ll_file_open, we will schedule
3203 replay for unreferenced request that we are about to free.
3204 Subsequent close will crash in variety of ways.
3205 Check that request is still eligible for replay in
3206 mdc_set_replay_data().
3211 Description: disable writes to filesystem when reading health_check file
3212 Details : the default for reading the health_check proc file has changed
3213 to NOT do a journal transaction and write to disk, because this
3214 can cause reads of the /proc file to hang and block HA state
3215 checking on a healthy but otherwise heavily loaded system. It
3216 is possible to return to the previous behaviour during configure
3217 with --enable-health-write.
3219 Severity : enhancement
3221 Description: 64-bit inode version
3222 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3223 to the inode. This will be required for version-based recovery.
3228 Description: MDS fails to start if a duplicate client export is detected
3229 Details : in some rare cases it was possible for a client to connect to
3230 an MDS multiple times. Upon recovery the MDS would detect this
3231 and fail during startup. Handle this more gracefully.
3233 Severity : enhancement
3235 Description: Add -o localflock option to simulate old noflock
3237 Details : This will achieve local-only flock/fcntl locks
3243 Description: log_commit_thread vs filter_destroy race leads to crash
3244 Details : Take import reference before releasing llog record semaphore
3249 Description: Wrong request locking in request set processing
3250 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3251 imp_delayed_list, in this place should be used imp_lock.
3254 Frequency : when reconnection
3256 Description: Grant Leak when osc reconnect to OST
3257 Details : When osc reconnect ost, OST(filter) should check whether it
3258 should grant more space to client by comparing fed_grant and
3259 cl_avail_grant, and return the granted space to client instead
3260 of "new granted" space, because client will call osc_init_grant
3261 to update the client grant space info.
3264 Frequency : when client reconnect to OST
3266 Description: Grant Leak when osc do resend and replay bulk write
3267 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3268 bulk write request, because the grant info while be sync between
3269 OSC and OST when reconnect, and we should ignore the grant info
3270 these of resend/replay write req.
3275 Description: Grant space more than available left space sometimes.
3276 Details : When then OST is about to be full, if two bulk writing from
3277 different clients came to OST. Accord the avaliable space of the
3278 OST, the first req should be permitted, and the second one
3279 should be denied by ENOSPC. But if the seconde arrived before
3280 the first one is committed. The OST might wrongly permit second
3281 writing, which will cause grant space > available space.
3284 Frequency : when client is evicted
3286 Description: Grant might be wrongly erased when osc is evicted by OST
3287 Details : when the import is evicted by server, it will fork another
3288 thread ptlrpc_invalidate_import_thread to invalidate the
3289 import, where the grant will be set to 0. While the original
3290 thread will update the grant it got when connecting. So if
3291 the former happened latter, the grant will be wrongly errased
3292 because of this race.
3297 Description: Checking Stale with correct fid
3298 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3299 to check whether it is stale, because sometimes, we want the
3300 enqueue happened anyway, and op_data.fid2 will not be initialized.
3302 Severity : enhancement
3304 Description: update patchless client
3305 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3308 Frequency : only with 2.4 kernel
3310 Description: random memory corruption
3311 Details : size of struct ll_inode_info is to big for union inode.u and this
3312 can be cause of random memory corruption.
3317 Description: Memory leak in recovery
3318 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3319 It should also check obd_fail before fsfilt_start, otherwise if
3320 fsfilt_start return -EROFS,(failover mds during mds recovery).
3321 then the req will return with repmsg->transno = 0 and rc = EROFS.
3322 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3323 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3324 be freed no matter whether fsfilt_commit success or not.
3327 Frequency : only with huge count clients
3329 Description: Prevents from taking the superblock lock in llap_from_page for
3331 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3332 for llap_from_page call in ll_removepage prevents from taking the
3333 superblock lock for a soon died page.
3338 Description: Not check open intent error before release open handle
3339 Details : in some rare cases, the open intent error is not checked before
3340 release open handle, which may cause
3341 ASSERTION(open_req->rq_transno != 0), because it tries to release
3342 the failed open handle.
3347 Description: Set cat log bitmap only after create log success.
3348 Details : in some rare cases, the cat log bitmap is set too early. and it
3349 should be set only after create log success.
3353 Description: Accessing a block bevice can re-enable I/O when Lustre is
3354 tearing down a device.
3355 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3360 Description: service threads may hog cpus when there are a lot of requests
3361 Details : Insert cond_resched to give other threads a chance to use some CPU
3366 Description: the cat log was not initialized in recovery
3367 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3368 unlink log on mds will not be initialized until mds post
3369 recovery. And also in mds post recovery, the unlink log will
3370 initialization will be done asynchronausly, so there will be race
3371 between add unlink log and unlink log initialization.
3375 Description: brw_stats were being printed incorrectly
3376 Details : brw_stats were being printed as log2 but all of them were not
3377 recorded as log2. Also remove some code duplication arising from
3378 filter_tally_{read,write}.
3382 Frequency : rare, only in recovery.
3383 Description: ASSERTION(req->rq_type != LI_POISON) failed
3384 Details : imp_lock should be held while iterating over imp_sending_list for
3385 prevent destroy request after get timeout in ptlrpc_queue_wait.
3389 Description: replay-single.sh test 52 fails
3390 Details : A lock's skiplist need to be cleanup when it being unlinked
3391 from its resource list.
3395 Description: Short directio read returns full requested size rather than
3397 Details : Direct I/O operations should return actual amount of bytes
3398 transferred rather than requested size.
3400 Severity : enhancement
3402 Description: metadata RPC reduction (e.g. for rm performance)
3403 Details : decrease the amount of synchronous RPC between clients and servers
3404 by canceling conflicing lock before the operation on the client
3405 and packing thier handles into the main operation RPC to server.
3407 Severity : enhancement
3409 Description: Async OSC create to avoid the blocking unnecessarily.
3410 Details : If an OST has no remaining object, system will block on the
3411 creation when it needs to create a new object on this OST. Now,
3412 ways use pre-created objects when available, instead of blocking on
3413 an empty osc while others are not empty. If we must block, we
3414 block for the shortest possible period of time.
3418 Description: improve handling recoverable errors
3419 Details : if request processig with error which can be recoverable on server
3420 request should be resend, otherwise page released from cache and
3423 Severity : enhancement
3425 Description: refine locking for avoid write wrong info into lov_objid file
3426 Details : fix possible races with add new target and write/update data in
3429 --------------------------------------------------------------------------------
3431 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3436 Frequency : on some architectures
3438 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3439 Details : Uninitialized flags sometimes cause configuration commands to
3443 Frequency : patchless clients only
3445 Description: missing __iget() symbol export
3446 Details : The __iget() symbol export is missing. To avoid the need for
3447 this on patchless clients the deathrow inode reaper is turned
3448 off, and we depend on the VM to clean up old inodes. This
3449 dependency was during via the fix for bug 12181.
3451 --------------------------------------------------------------------------------
3453 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3455 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3456 INTEROPERATE with older versions automatically. In many cases a
3457 special upgrade step is needed. Please read the
3458 user documentation before upgrading any part of a live system.
3459 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3460 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3461 * WARNING: Lustre configuration and startup changes are required with
3462 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3466 Severity : enhancement
3468 Description: MountConf
3469 Details : Lustre configuration is now managed via mkfs and mount
3470 commands instead of lmc and lconf. New obd types (MGS, MGC)
3471 are added for dynamic configuration management. See
3472 https://mail.clusterfs.com/wikis/lustre/MountConf for
3475 Severity : enhancement
3477 Description: dynamic OST addition
3478 Details : OSTs can now be added to a live filesystem
3480 Severity : enhancement
3482 Description: startup order invariance
3483 Details : MDTs and OSTs can be started in any order. Clients only
3484 require the MDT to complete startup.
3486 Severity : enhancement
3488 Description: parallel, asynchronous orphan cleanup
3489 Details : orphan cleanup is now performed in separate threads for each
3490 OST, allowing parallel non-blocking operation.
3492 Severity : enhancement
3494 Description: optimized stripe assignment
3495 Details : stripe assignments are now made based on ost space available,
3496 ost previous usage, and OSS previous usage, in order to try
3497 to optimize storage space and networking resources.
3499 Severity : enhancement
3501 Description: Permanently set tunables
3502 Details : All writable /proc/fs/lustre tunables can now be permanently
3503 set on a per-server basis, at mkfs time or on a live system.
3505 Severity : enhancement
3507 Description: Lustre message v2
3508 Details : Add lustre message format v2.
3510 Severity : enhancement
3512 Description: client OST exclusion list
3513 Details : Clients can be started with a list of OSTs that should be
3514 declared "inactive" for known non-responsive OSTs.
3518 Description: SPEC SFS validation failure on NFS v2 over lustre.
3519 Details : Changes the blocksize for regular files to be 2x RPC size,
3520 and not depend on stripe size.
3522 Severity : enhancement
3524 Description: Multiple MD RPCs in flight.
3525 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3526 To avoid overly-overloading MDS, introduce a limit on number of
3527 MDS RPCs in flight for a single client and add /proc controls
git://git.whamcloud.com / fs / lustre-release.git / blob