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 3.10.0-1127.8.2.el7 (RHEL7.8)
8 * Other server kernels known to build and work at some point (others may also work):
9 3.10.0-862.14.4.el7 (RHEL7.5)
10 3.10.0-957.27.2.el7 (RHEL7.6)
11 4.18.0-80.11.2.el8 (RHEL8.0)
12 4.18.0-147.8.1.el8 (RHEL8.1)
13 4.18.0-193.1.2.el8 (RHEL8.2)
14 4.4.120-92.70 (SLES12 SP2)
15 4.4.180-94.100 (SLES12 SP3)
16 4.4.0-131 (Ubuntu 16.04)
17 4.15.0-32 (Ubuntu 18.04)
18 vanilla linux 4.6.7 (ZFS only)
19 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
20 * Client primary unpatched kernels built and tested during release cycle:
21 3.10.0-1062.18.1.el7 (RHEL7.7)
22 3.10.0-1127.8.2.el7 (RHEL7.8)
23 4.12.14-95.48 (SLES12 SP4)
24 4.12.14-122.20 (SLES12 SP5)
25 4.12.14-197.37 (SLES15 SP1)
26 4.15.0-48 (Ubuntu 18.04)
27 * Other clients known to build on unpatched kernels at some point (others may also work):
28 3.10.0-862.14.4.el7 (RHEL7.5)
29 3.10.0-957.27.2.el7 (RHEL7.6)
30 4.14.0-49.13.1.el7a (RHEL7.5)
31 4.14.0-115.2.2.el7a (RHEL7.6)
32 4.18.0-80.11.2.el8 (RHEL8.0)
33 4.18.0-147.8.1.el8 (RHEL8.1)
34 4.18.0-193.1.2.el8 (RHEL8.2)
35 4.4.120-92.70 (SLES12 SP2)
36 4.4.180-94.100 (SLES12 SP3)
37 4.4.0-131 (Ubuntu 16.04)
38 vanilla linux 4.15.0 (ZFS only)
39 * Recommended e2fsprogs version: 1.45.6.wc1 or newer
40 * Recommended ZFS version: 0.8.3
41 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
42 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
43 stack overflow. For more information, please refer to bugzilla 17630.
44 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
45 the re-exporting nodes to be mounted with "32bitapi" mount option
46 * Note for Ubuntu 14.04.5:
47 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
48 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
50 --------------------------------------------------------------------------------
54 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
55 for currently supported client and server kernel versions.
56 * Server primary kernels built and tested during release cycle:
57 3.10.0-1062.1.1.el7 (RHEL7.7)
58 * Other server kernels known to build and work at some point (others may also work):
59 3.10.0-862.14.4.el7 (RHEL7.5)
60 3.10.0-957.27.2.el7 (RHEL7.6)
61 4.18.0-80.7.1.el8 (RHEL8.0)
62 4.4.120-92.70 (SLES12 SP2)
63 4.4.180-94.100 (SLES12 SP3)
64 4.4.0-131 (Ubuntu 16.04)
65 4.15.0-32 (Ubuntu 18.04)
66 vanilla linux 4.6.7 (ZFS only)
67 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
68 * Client primary unpatched kernels built and tested during release cycle:
69 3.10.0-1062.1.1.el7 (RHEL7.7)
70 4.12.14-95.29 (SLES12 SP4)
71 4.15.0-48 (Ubuntu 18.04)
72 * Other clients known to build on unpatched kernels at some point (others may also work):
73 3.10.0-862.14.4.el7 (RHEL7.5)
74 3.10.0-957.27.2.el7 (RHEL7.6)
75 4.14.0-49.13.1.el7a (RHEL7.5)
76 4.14.0-115.2.2.el7a (RHEL7.6)
77 4.18.0-80.7.1.el8 (RHEL8.0)
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 vanilla linux 4.15.0 (ZFS only)
82 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
83 * Recommended ZFS / SPL version: 0.7.13
84 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
85 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
86 stack overflow. For more information, please refer to bugzilla 17630.
87 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
88 the re-exporting nodes to be mounted with "32bitapi" mount option
89 * Note for Ubuntu 14.04.5:
90 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
91 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
93 --------------------------------------------------------------------------------
97 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
98 for currently supported client and server kernel versions.
99 * Server known to build on the following kernels (others may also work):
100 2.6.32-696.18.7.el6 (RHEL6.9)
101 3.10.0-862.14.4.el7 (RHEL7.5)
102 3.10.0-957.el7 (RHEL7.6)
103 4.4.120-92.70 (SLES12 SP2)
104 4.4.162-94.69 (SLES12 SP3)
105 4.4.0-131 (Ubuntu 16.04)
106 4.15.0-32 (Ubuntu 18.04)
107 vanilla linux 4.6.7 (ZFS only)
108 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
109 * Client known to build on unpatched kernels (others may also work):
110 2.6.32-696.18.7.el6 (RHEL6.9)
111 2.6.32-754.6.3.el6 (RHEL6.10)
112 3.10.0-862.14.4.el7 (RHEL7.5)
113 3.10.0-957.el7 (RHEL7.6)
114 4.14.0-49.13.1.el7a (RHEL7.5)
115 4.14.0-115.2.2.el7a (RHEL7.6)
116 4.4.120-92.70 (SLES12 SP2)
117 4.4.162-94.69 (SLES12 SP3)
118 4.4.0-131 (Ubuntu 16.04)
119 4.15.0-32 (Ubuntu 18.04)
120 vanilla linux 4.15.0 (ZFS only)
121 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
122 * Recommended ZFS / SPL version: 0.7.9
123 * Tested with ZFS / SPL version: 0.7.9
124 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
125 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
126 stack overflow. For more information, please refer to bugzilla 17630.
127 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
128 the re-exporting nodes to be mounted with "32bitapi" mount option
129 * Note for Ubuntu 14.04.5:
130 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
131 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
133 --------------------------------------------------------------------------------
135 2018-04-03 Intel Corporation
137 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
138 for currently supported client and server kernel versions.
139 * Server known to build on patched kernels:
140 2.6.32-431.29.2.el6 (RHEL6.5)
141 2.6.32-504.30.3.el6 (RHEL6.6)
142 2.6.32-573.26.1.el6 (RHEL6.7)
143 2.6.32-642.15.1.el6 (RHEL6.8)
144 2.6.32-696.18.7.el6 (RHEL6.9)
145 3.10.0-693.21.1.el7 (RHEL7.4)
146 3.0.101-0.47.71 (SLES11 SP3)
147 3.0.101-107 (SLES11 SP4)
148 3.12.74-60.64.40 (SLES12 SP1)
149 4.4.114-92.64 (SLES12 SP2)
150 4.4.114-94.11 (SLES12 SP3)
151 3.13.0-101 (Ubuntu 14.04, ZFS only)
152 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
153 4.4.0-116 (Ubuntu 16.04)
154 vanilla linux 4.6.7 (ZFS only)
155 * Client known to build on unpatched kernels:
156 2.6.32-431.29.2.el6 (RHEL6.5)
157 2.6.32-504.30.3.el6 (RHEL6.6)
158 2.6.32-573.26.1.el6 (RHEL6.7)
159 2.6.32-642.15.1.el6 (RHEL6.8)
160 2.6.32-696.18.7.el6 (RHEL6.9)
161 3.10.0-693.21.1.el7 (RHEL7.4)
162 3.0.101-0.47.71 (SLES11 SP3)
163 3.0.101-107 (SLES11 SP4)
164 3.12.74-60.64.40 (SLES12 SP1)
165 4.4.114-92.64 (SLES12 SP2)
166 4.4.114-94.11 (SLES12 SP3)
167 3.13.0-101 (Ubuntu 14.04)
168 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
169 4.4.0-116 (Ubuntu 16.04)
171 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
172 * Recommended ZFS / SPL version: 0.7.6
173 * Tested with ZFS / SPL version: 0.7.6
174 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
175 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
176 stack overflow. For more information, please refer to bugzilla 17630.
177 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
178 the re-exporting nodes to be mounted with "32bitapi" mount option
179 * Note for Ubuntu 14.04.5:
180 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
181 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
183 --------------------------------------------------------------------------------
185 2017-07-05 Intel Corporation
187 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
188 for currently supported client and server kernel versions.
189 * Server known to build on patched kernels:
190 2.6.32-431.29.2.el6 (RHEL6.5)
191 2.6.32-504.30.3.el6 (RHEL6.6)
192 2.6.32-573.26.1.el6 (RHEL6.7)
193 2.6.32-642.15.1.el6 (RHEL6.8)
194 2.6.32-696.3.1.el6 (RHEL6.9)
195 3.10.0-514.21.1.el7 (RHEL7.3)
196 3.0.101-0.47.71 (SLES11 SP3)
197 3.0.101-100 (SLES11 SP4)
198 3.12.74-60.64.40 (SLES12 SP1)
199 4.4.59-92.17 (SLES12 SP2)
200 vanilla linux 4.6.7 (ZFS only)
201 * Client known to build on unpatched kernels:
202 2.6.32-431.29.2.el6 (RHEL6.5)
203 2.6.32-504.30.3.el6 (RHEL6.6)
204 2.6.32-573.26.1.el6 (RHEL6.7)
205 2.6.32-642.15.1.el6 (RHEL6.8)
206 2.6.32-696.3.1.el6 (RHEL6.9)
207 3.10.0-514.21.1.el7 (RHEL7.3)
208 3.0.101-0.47.71 (SLES11 SP3)
209 3.0.101-100 (SLES11 SP4)
210 3.12.74-60.64.40 (SLES12 SP1)
211 4.4.59-92.17 (SLES12 SP2)
213 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
214 * Recommended ZFS / SPL version: 0.6.5.9
215 * Tested with ZFS / SPL version: 0.6.5.9
216 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
217 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
218 stack overflow. For more information, please refer to bugzilla 17630.
219 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
220 the re-exporting nodes to be mounted with "32bitapi" mount option
222 --------------------------------------------------------------------------------
224 12-07-2016 Intel Corporation
226 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
227 for currently supported client and server kernel versions.
228 * Server known to build on patched kernels:
229 2.6.32-431.29.2.el6 (RHEL6.5)
230 2.6.32-504.30.3.el6 (RHEL6.6)
231 2.6.32-573.26.1.el6 (RHEL6.7)
232 2.6.32-642.11.1.el6 (RHEL6.8)
233 3.10.0-514.el7 (RHEL7.3)
234 3.0.101-0.47.71 (SLES11 SP3)
235 3.0.101-80 (SLES11 SP4)
236 3.12.62-60.64.8 (SLES12 SP1)
237 vanilla linux 4.5.7 (ZFS only)
238 * Client known to build on unpatched kernels:
239 2.6.32-431.29.2.el6 (RHEL6.5)
240 2.6.32-504.30.3.el6 (RHEL6.6)
241 2.6.32-573.26.1.el6 (RHEL6.7)
242 2.6.32-642.11.1.el6 (RHEL6.8)
243 3.10.0-514.el7 (RHEL7.3)
244 3.0.101-0.47.71 (SLES11 SP3)
245 3.0.101-80 (SLES11 SP4)
246 3.12.62-60.64.8 (SLES12 SP1)
248 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
249 * Recommended ZFS / SPL version: 0.6.5.8
250 * Tested with ZFS / SPL version: 0.6.5.8
251 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
252 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
253 stack overflow. For more information, please refer to bugzilla 17630.
254 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
255 the re-exporting nodes to be mounted with "32bitapi" mount option
257 --------------------------------------------------------------------------------
259 02-29-2016 Intel Corporation
261 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
262 for currently supported client and server kernel versions.
263 * Server known to build on patched kernels:
264 2.6.32-431.29.2.el6 (RHEL6.5)
265 2.6.32-504.30.3.el6 (RHEL6.6)
266 2.6.32-573.12.1.el6 (RHEL6.7)
267 3.10.0-327.3.1.el7 (RHEL7.2)
268 3.0.101-0.47.71 (SLES11 SP3)
269 3.0.101-68 (SLES11 SP4)
270 vanilla linux 4.2.1 (ZFS only)
271 * Client known to build on unpatched kernels:
272 2.6.32-431.29.2.el6 (RHEL6.5)
273 2.6.32-504.30.3.el6 (RHEL6.6)
274 2.6.32-573.12.1.el6 (RHEL6.7)
275 3.10.0-327.3.1.el7 (RHEL7.2)
276 3.0.101-0.47.71 (SLES11 SP3)
277 3.0.101-68 (SLES11 SP4)
280 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
281 * Recommended ZFS / SPL version: 0.6.4.2
282 * Tested with ZFS / SPL version: 0.6.4.2
283 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
284 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
285 stack overflow. For more information, please refer to bugzilla 17630.
286 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
287 the re-exporting nodes to be mounted with "32bitapi" mount option
289 --------------------------------------------------------------------------------
291 03-10-2015 Intel Corporation
293 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
294 for currently supported client and server kernel versions.
295 * Server known to build on patched kernels:
296 2.6.32-431.29.2.el6 (RHEL6.5)
297 2.6.32-504.8.1.el6 (RHEL6.6)
298 3.0.101-0.46 (SLES11 SP3)
299 * Client known to build on unpatched kernels:
300 2.6.32-431.29.2.el6 (RHEL6.5)
301 2.6.32-504.8.1.el6 (RHEL6.6)
302 3.10.0-123.20.1.el7 (RHEL7)
303 3.0.101-0.46 (SLES11 SP3)
304 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
305 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
306 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
307 stack overflow. For more information, please refer to bugzilla 17630.
308 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
309 the re-exporting nodes to be mounted with "32bitapi" mount option
311 Severity : enhancement
313 Description: control OST-index in IDIF via ROCOMPAT flag.
314 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
315 last_rcvd file. For new formatted OST device, it will be auto set;
316 for the case of upgrading from old OST device, you can enable it
317 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
318 enabled, for new created OST-object, its IDIF-in-LMA will contain
319 the OST-index; for the existing OST-object, the OSD will convert
320 old format IDIF as new format IDIF with OST-index stored in the
321 LMA EA when accessing such OST-object or via OI scrub. Once such
322 flag is enabled, it cannot be reverted back, so the system cannot
323 be downgraded to the orignal incompatible version.
325 --------------------------------------------------------------------------------
327 07-30-2014 Intel Corporation
329 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
330 for currently supported client and server kernel versions.
331 * Server known to build on patched kernels:
332 2.6.32-431.20.3.el6 (RHEL6.5)
333 3.0.101-0.31 (SLES11 SP3)
334 * Client known to build on unpatched kernels:
335 2.6.32-431.20.3.el6 (RHEL6.5)
336 3.0.101-0.31 (SLES11 SP3)
339 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
340 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
341 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
342 stack overflow. For more information, please refer to bugzilla 17630.
343 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
344 the re-exporting nodes to be mounted with "32bitapi" mount option
346 --------------------------------------------------------------------------------
348 10-31-2013 Intel Corporation
350 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
351 * Server builds for kernels:
352 2.6.32-358.18.1.el6 (RHEL6.4)
353 * Client builds for unpatched kernels:
354 2.6.32-358.18.1.el6 (RHEL6.4)
355 3.0.92-0.8 (SLES11 SP3)
357 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
358 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
359 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
360 stack overflow. For more information, please refer to bugzilla 17630.
361 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
362 the re-exporting nodes to be mounted with "32bitapi" mount option
364 --------------------------------------------------------------------------------
366 05-30-2013 Intel Corporation
368 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
369 * Server builds for kernels:
370 2.6.32-358.6.2.el6 (RHEL6.4)
371 * Client builds for unpatched kernels:
372 2.6.32-358.6.2.el6 (RHEL6.4)
373 3.0.74-0.6.6 (SLES11 SP2)
375 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
376 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
377 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
378 stack overflow. For more information, please refer to bugzilla 17630.
379 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
380 the re-exporting nodes to be mounted with "32bitapi" mount option
382 --------------------------------------------------------------------------------
384 9-30-2012 Whamcloud, Inc.
386 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
387 * Server support for kernels:
388 2.6.32-279.5.1.el6 (RHEL6)
389 * Client support for unpatched kernels:
390 2.6.32-279.5.1.el6 (RHEL6)
392 2.6.18-238.19.1.el5 (RHEL5)
393 2.6.16.60-0.69.1 (SLES10)
394 * Recommended e2fsprogs version: 1.41.90.wc4
395 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
396 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
397 stack overflow. For more information, please refer to bugzilla 17630.
398 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
399 the re-exporting nodes to be mounted with "32bitapi" mount option
401 Severity : enhancement
403 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
405 Severity : enhancement
407 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
409 Severity : enhancement
411 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
413 Severity : enhancement
415 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
417 Severity : enhancement
419 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
421 --------------------------------------------------------------------------------
423 04-30-2012 Whamcloud, Inc.
425 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
426 * Server support for kernels:
427 2.6.32-220.4.2.el6 (RHEL6)
428 * Client support for unpatched kernels:
429 2.6.32-220.4.2.el6 (RHEL6)
431 2.6.18-238.19.1.el5 (RHEL5)
432 2.6.16.60-0.69.1 (SLES10)
433 * Recommended e2fsprogs version: 1.41.90.wc4
434 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
435 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
436 stack overflow. For more information, please refer to bugzilla 17630.
437 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
438 the re-exporting nodes to be mounted with "32bitapi" mount option
440 Severity : enhancement
442 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
444 Severity : enhancement
446 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
448 Severity : enhancement
450 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
452 Severity : enhancement
454 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
456 --------------------------------------------------------------------------------
458 09-30-2011 Whamcloud, Inc.
460 * Server support for kernels:
461 2.6.18-238.19.1.el5 (RHEL5)
462 2.6.32-131.6.1.el6 (RHEL6)
463 * Client support for unpatched kernels:
464 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
465 2.6.18-238.19.1.el5 (RHEL5)
466 2.6.32-131.6.1.el6 (RHEL6)
467 2.6.29.4-167.fc11 (FC11)
468 2.6.16.60-0.69.1 (SLES10)
470 * Recommended e2fsprogs version: 1.41.90.wc3
471 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
472 Lustre filesystem with 4K stack may cause a stack overflow. For more
473 information, please refer to bugzilla 17630.
474 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
475 mounted with "32bitapi" mount option
477 Severity : enhancement
478 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
480 Severity : enhancement
481 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
483 Severity : enhancement
484 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
487 Frequency : only with SLES10
489 Description: Use OFED "KMP" provided by Novell
490 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
491 Lustre is now built against this package. That means you need to
492 install the ofed-kmp package from Novell for the patchless client.
493 Note that the ofed-kmp that Novell ships may not exactly match the
494 kernel version but should still be compatible.
496 Severity : enhancement
498 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
499 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
501 --------------------------------------------------------------------------------
503 2010-07-15 Oracle, Inc.
505 * Server support for kernels:
506 2.6.18-164.11.1.el5 (RHEL 5)
507 2.6.18-164.11.1.0.1.el5 (OEL 5)
508 * Client support for unpatched kernels:
509 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
510 2.6.18-164.11.1.el5 (RHEL 5),
511 2.6.18-164.11.1.0.1.el5 (OEL 5)
512 2.6.16.60-0.42.8 (SLES 10),
514 2.6.29.4-167.fc11 (FC11)
515 * Recommended e2fsprogs version: 1.41.10-sun2
517 Severity : enhancement
519 Description: Distribute lfs_migrate script with lustre
520 Details : The lfs_migrate mentioned in the manual is now included in the
521 lustre tree in lustre/scripts and will distributed in lustre RPMs.
523 Severity : enhancement
525 Description: Failover nid list added to import proc file.
527 Severity : enhancement
529 Description: "som_preview" mount option required to use SOM
530 Details : The clients will need to use som_preview mount option
534 Description: Lustre does not do 1MB IOs to HW RAID
535 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
537 Severity : enhancement
539 Description: lfs quota output is not very convenient for awk/sed-parsing
540 Details : Some positions in lfs quota output table could be empty or
541 non-empty which made it hard to parse it with scripts, now
542 a dash is put instead of space where there is not supposed
547 Description: Update to OFED 1.5.1
548 Details : OFED 1.5.1 will be used in environments that don't use
549 vendor supplied OFED.
553 Description: Remove lnet. prefix from lctl params display
554 Details : Also renamed lnet.memused to lnet_memused to
559 Description: Use conf_param -d to remove permanant settings.
563 Description: Add list_param -R
564 Details : lctl list_param now supports recursive mode.
567 Bugzilla : 21829, 22312
568 Description: Fix llobdstat.
569 Details : 1. Now updating the write_bytes counter
570 2. Port script fixes from 1.8.
574 Description: decrease the usage of memory on clients.
575 Details : 1. On clients, recycle dentries and inodes unused.
576 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
581 Description: llobdstat fix and enhancement
582 Details : add a counter to set a limit to how many samples will be returned
583 fix a wildcard in the path to limit to obdfilter stats only
587 Description: lfs check only allowed for root
588 Details : Code cleanups and added a regresion test of non-root use of
593 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
594 Details : Fix hr->hr_index overload.
598 Description: Fix FIEMAP functionality.
602 Description: FC11 patchless client support added
606 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
607 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
611 Description: New acc-sm script and various test-framework enhancments.
615 Description: Previously landed patch was reverted.
619 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
623 Description: Add ldiskfs maxdirsize mount option.
627 Description: Fix mkfs.lustre support for 16TB LUNs.
631 Description: Print mmp_check_interval
632 Details : print mmp_check_interval and make it possible to abort
633 mount operation in case it takes too long.
637 Description: Add cascading_rw to lustre mpi tests.
641 Description: Store SOM data in EA.
642 Details : Also several SOM related cleanups.
646 Description: Add refcount to md_open_data
650 Description: Use refcount on lov_request_set to prevent memory corruption.
654 Description: Statahead: use parent dir's i_mutex for synchronization.
658 Description: loadgen improvements.
662 Description: Enable peer health detection in ksocklnd and ko2iblnd.
666 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
670 Description: Fix race on obd_devcie:md_stats
674 Description: Fix SLES 11 client builds.
675 Details : Resolved uninitalized pointer gcc warnings.
679 Description: Allow non-root access for "lfs check".
680 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
684 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
686 Severity : enhancement
688 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
689 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
693 Description: Sanity test_27p fails.
694 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
695 Sanity tests 27 were cleaned up and improved.
699 Description: Unify req format on client/servers
700 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
701 buffers and swabbers approach..
706 Description: drop join file stuff.
708 Severity : enhancement
710 Description: Add 2.6.27 and SLES11 (patchless client) support
714 Description: Fix in ptlrpc_expire_one_request() to print the signed time
717 Severity : enhancement
719 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
722 Severity : enhancement
724 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
726 Severity : enhancement
728 Description: correctly handle big reply message.
729 Details : send LNet event if reply is bigger than buffer and adjust this buffer
734 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
736 Severity : enhancement
738 Description: Add support for OEL5.
742 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
744 Severity : enhancement
746 Description: "weak-modules" support
747 Details : Implement "weak-modules" support which enables kernel modules
748 to be used with any kernel that implements the same kABI. In
749 order to achieve this modules are now installed in
750 /lib/modules/$(uname -r)/updates/kernel on all distributions.
754 Description: client could not reconnect to OST because of an active request.
755 Details : The client now retries to reconnect to the same server, if a
756 connect request failed with EBUSY or -EAGAIN. Test case 35b
757 conf-sanity.sh has been created.
761 Description: Don't allow make backward step on assignin osc next id.
762 Details : race between allocation next id and ll_sync thread can be cause
763 of set wrong osc next id and can be kill valid ost objects.
767 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
771 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
775 Description: Error handling in osc_statfs_interpret() has been improved.
776 Details : Check in osc_statfs_interpret() for EBADR.
780 Description: Do not send statfs() requests to OSTs disabled by administrator.
781 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
783 Severity : enhancement
785 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
787 Severity : enhancement
789 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
791 Severity : enhancement
793 Description: Enhancement for lfs(1) command to use numeric uid/gid.
797 Description: Improved cleanup procedure for conf-sanity test_46a.
801 Description: Do not start bulk transfer, if client tried to reconnect.
802 Details : Do not start bulk transfer, if client tried to reconnect,
803 but failed due to active rpcs. Check for exp_abort_active_req
804 has been implemented.
808 Description: Prevent inconsistences between linux and lustre mount structures.
809 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
810 Make the sleep interruptible.
812 Severity : enhancement
814 Description: provide server to client comms path
815 Details : server to client communications path via new LDLM_SET_INFO rpc
819 Description: truncate starts GFP_FS allocation under transaction causing deadlock
820 Details : ldiskfs_truncate calls grab_cache_page which may start page
821 allocation under an open transaction. This may lead to
822 calling prune_icache with consequent lustre reentrance.
826 Description: send correctly lsm on open replay
827 Details : MDS is trust to LSM size on replay open, but client can set wrong size
832 Description: enable client interface failover
833 Details : When a child reconnects from another NID, properly update export
834 nid hash position and ldlm reverse import.
836 Severity : enhancement
838 Description: Communicate OST degraded/readonly state via statfs to MDS
839 Details : Flags in the statfs returned from OSTs indicate whether the
840 OST is in a degraded RAID state, or if the filesystem has
841 turned read-only after a filesystem error is detected.
846 Description: don't panic if EPROTO was hit when reading symlink
847 Details : correctly handling request reference in error cases.
849 Severity : enhancement
851 Description: Add LustreNetLink, a kernel-userspace communcation path.
853 Severity : enhancement
855 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
860 Description: access to llog context before init.
861 Details : move handling CATALOGS file at osc layer and forbid access to llog
865 Frequency : rare, only when client is writing to OST on local node
867 Description: Avoid deadlock for local client writes
868 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
869 memory freeing context. This allows OST threads to set the
870 PF_MEMALLOC flag on task structures in order to allocate memory
871 from reserved pools and complete IO.
872 Use GFP_HIGHUSER for OST allocations for non-local client writes,
873 so that the OST threads generate memory pressure and allow
874 inactive pages to be reclaimed.
876 Severity : enhancement
878 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
883 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
884 Details : move ldlm namespace creation in setup phase to avoid grab
885 _lprocfs_lock with cli_sem held.
889 Description: Temporarily disable grant shrink.
890 Details : Disable the feature for debugging.
893 Frequency : only when formatting test filesystems
895 Description: Unable to run several mkfs.lustre on loop devices at the same time
896 Details : mkfs.lustre returns error 256 on the concurrent loop devices
897 formatting. The solution is to proper handle the error.
899 Severity : enhancement
901 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
903 Severity : enhancement
905 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
910 Description: resolve race between obd_disconnect and class_disconnect_exports
911 Details : if obd_disconnect will be called to already disconnected export he
912 forget release one reference and osc module can't unloaded.
914 Severity : enhancement
916 Description: Allow tuning service thread via /proc
917 Details : For each service a new
918 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
919 created that can be used to set min/max thread counts, and get the
920 current number of running threads.
925 Descriptoin: don't return error if have partially created objects for file.
926 Details : lov_update_create_set uses set->set_success as index for created
927 objects, so if some requests will be failed, they will have hole
928 at end of array and qos_shrink_lsm for allocate correct lsm.
930 Severity : enhancement
932 Description: Update OFED support to 1.4.1
937 Description: Reduce small size read RPC
938 Details : Set read-ahead limit for every file and only do read-ahead when
939 available read-ahead pages are bigger than 1M to avoid small size
942 Severity : enhancement
944 Description: move AT tunable parameters for more consistent usage
945 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
947 Severity : enhancement
949 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
950 Details : allow skip disconnected ost for send statfs request and hide error
956 Description: fix racy locking of mballoc block bitmaps causing BUG
957 Details : The locking of the mballoc buddy bitmap and the in-memory
958 block bitmap was using two different spin locks in some
959 cases. This made it possible to incorrectly access the
960 mballoc bitmap while another process was modifying it,
961 causing a sanity assertion to fail. While no on-disk corruption
962 was reported, there was some risk of this happening.
965 Frequency : rare, on llog test 6
967 Descriptoin: don't allow connect to already connected import
968 Details : allowing connect to already connected import is hide connecting problem.
973 Descriptoin: allow kill process which wait statahead result
974 Details : for some reasons 'ls' can stick in waiting result from statahead,
975 in this case need way for kill this process.
977 Severity : enhancement
979 Description: Add state history info file, enhance import info file
980 Details : Track import connection state changes in a new osc/mdc proc file;
981 add overview-type data to the osc/mdc import proc file.
983 Severity : enhancement
985 Description: MDS create should not wait for statfs RPC while holding DLM lock.
987 Severity : enhancement
989 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
994 Descriptoin: OST grant too much space to client even there are not enough space.
995 Details : Client will shrink its grant cache to OST if there are no write
996 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
997 this grant cache if there are already not enough avaible space
998 (left_space < total_clients * 32M).
1001 Frequency : start MDS on uncleanly shutdowned MDS device
1003 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
1004 Details : stay in waiting mds<>ost recovery finished produce random bugs
1005 due race between two ll_sync thread for one lov target. send
1006 ACTIVATE event only if connect realy finished and import have
1010 Frequency : rare, connect and disconnect target at same time
1012 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1013 Details : don't call obd_disconnect under lov_lock. this long time
1014 operation and can block ptlrpcd which answer to connect request.
1019 Descriptoin: don't lose wakeup for imp_recovery_waitq
1020 Details : recover_import_no_retry or invalidate_import and import_close can
1021 both sleep on imp_recovery_waitq, but we was send only one wakeup
1025 Frequency : always with long access acl
1027 Descriptoin: mds can't pack reply with long acl.
1028 Details : mds don't control size of acl but they limited by reint/getattr
1031 Severity : enhancement
1033 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1035 Severity : enhancement
1037 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1040 Frequency : start MDS on uncleanly shutdowned MDS device
1042 Descriptoin: aborting recovery hang on MDS
1043 Details : don't throttle destroy RPCs for the MDT.
1046 Frequency : on remount
1048 Description: external journal device not working after the remount
1049 Details : clear dev_rdonly flag for external journal devices in
1055 Description: shutdown vs evict race
1056 Details : client_disconnect_export vs connect request race.
1057 if client will evicted at this time - we start invalidate
1058 thread without referece to import and import can be freed
1062 Frequency : rare, need acl's on inode.
1064 Description: client can't handle ost additional correctly
1065 Details : if ost was added after client connected to mds client can have
1066 hit lnet_try_match_md ... to big messages to wide striped files.
1067 in this case need teach client to handle config events about add
1068 lov target and update client max ea size at that event.
1070 Severity : enhancement
1072 Description: Changelogs
1073 Details : Changelogs are a lightweight mechanism to track filesystem
1074 metadata and namespace changes. The changelog is recorded
1075 permanently on the MDTs, and is periodically "consumed" / purged
1076 when records are no longer needed.
1078 Severity : enhancement
1080 Description: compact fld format with extents
1081 Details : Store range of seq rather than every seq in FLD. Seq
1082 controller update FLD rather than clients. In Case of CMD, mdt0
1083 has FLD, all other metadata server act as non persistent proxy
1084 for FLD queries and cache fld entries in fld cache.
1089 Description: don't skip ost target if they assigned to file
1090 Details : Drop slow OSCs if we can, but not for requested start idx.
1091 This means "if OSC is slow and it is not the requested
1092 start OST, then it can be skipped, otherwise skip it only
1093 if it is inactive/recovering/out-of-space.
1097 Description: more cleanup in mds_lov
1098 Details : not send LOV EA under replay, we can't know about they size at this
1099 time. Don't allow client connect to mds before any ost connected,
1100 for avoid problems with LOV EA size and returning EIO to client.
1102 Severity : enhancement
1104 Description: Interoperability at server side (Disk interoperability)
1106 Severity : enhancement
1108 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1110 Severity : enhancement
1112 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1114 Severity : enhancement
1116 Description: New client IO stack (CLIO).
1118 Severity : enhancement
1120 Description: Commit on sharing. Eliminate inter-client dependencies between
1121 uncommitted transactions by doing transaction commits.
1122 Thereby clients may recovery independently.
1125 Frequency : Create a symlink file with a very long name
1127 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1128 Details : If there is no extra space in the request for early cancels,
1129 ldlm_req_handles_avail() returns 0 instead of a negative value.
1131 Severity : enhancement
1133 Description: Add /proc entry for import status
1134 Details : The mdc, osc, and mgc import directories now have
1135 an import directory that contains useful import data for debugging
1136 connection problems.
1138 Severity : enhancement
1140 Description: Re-disable certain /proc logging
1141 Details : Enable and disable client's offset_stats, extents_stats and
1142 extents_stats_per_process stats logging on the fly.
1145 Frequency : Only on FC kernels 2.6.22+
1147 Description: oops in statahead
1148 Details : Do not drop reference count for the dentry from VFS when lookup,
1149 VFS will do that by itself.
1151 Severity : enhancement
1153 Description: Generic /proc file permissions
1154 Details : Set /Proc file permissions in a more generic way to enable non-
1155 root users operate on some /proc files.
1159 Description: Hitting mdc_commit_close() ASSERTION
1160 Details : Properly handle request reference release in
1161 ll_release_openhandle().
1165 Description: quota recovery deadlock during mds failover
1166 Details : This patch includes att18982, att18236, att18237 in bz14840.
1168 1. fix osts hang when mds does failover with quotaon
1169 2. prevent watchdog storm when osts threads wait for the
1174 Frequency : only patchless client
1175 Description: add workaround for race between add/remove dentry from hash
1177 Severity : enhancement
1179 Description: Allow OST glimpses to return PW locks
1183 Description: LBUG when llog conf file is full
1184 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1188 Description: Prevent import from entering FULL state when server in recovery
1192 Description: service mount cannot take device name with ":"
1193 Details : Only when device name contains ":/" will mount treat it as
1199 Description: replace ptlrpcd with the statahead thread to interpret the async
1200 statahead RPC callback
1204 Frequency : on recovery
1205 Description: I/O failures after umount during fail back
1206 Details : if client reconnected to restarted server we need join to recovery
1207 instead of find server handler is changed and process self
1208 eviction with cancel all locks.
1210 Severity : enhancement
1212 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1214 Severity : enhancement
1216 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1218 Severity : enhancement
1220 Description: Upcall on Lustre log has been dumped
1221 Details : Allow for a user mode script to be called once a Lustre log has
1222 been dumped. It passes the filename of the dumped log to the
1223 script, the location of the script can be specified via
1224 /proc/sys/lnet/debug_log_upcall.
1229 Description: avoid idr_remove called for id which is not allocated.
1230 Details : Move assigment s_dev for clustered nfs to end of initialization,
1231 to avoid problem with error handling.
1236 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1237 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1238 into CONN_USED_HASH and this prodice warning when put connection
1239 again in unused hash.
1242 Severity : enhancement
1244 Description: File striping can now be set to use an arbitrary pool of OSTs.
1246 Severity : enhancement
1248 Description: Export bytes_read/bytes_write count on OSC/OST.
1252 Description: Early reply size mismatch, MGC loses connection
1253 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1254 the connect flags are properly negotiated.
1259 Description: quotas are not honored with O_DIRECT
1260 Details : all writes with the flag O_DIRECT will use grants which leads to
1261 this problem. Now using OBD_BRW_SYNC to guard this.
1265 Description: add quota statistics
1266 Details : 1. sort out quota proc entries and proc code.
1267 2. add quota statistics
1269 Severity : enhancement
1271 Description: enable quota support for HEAD.
1275 Description: Properly propagate oinfo flags from lov to osc for statfs
1276 Details : restore missing copy oi_flags to lov requests.
1278 Severity : enhancement
1280 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1281 : l_getgroups(8), lst(8), routerstat(8)
1282 Details : included man pages for llobdstat(8), llstat(8),
1283 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1285 Severity : enhancement
1287 Description: configure's --enable-quota should check the
1288 : kernel .config for CONFIG_QUOTA
1289 Details : configure is terminated if --enable-quota is passed but
1290 : no quota support is in kernel
1294 Description: Remove portals compatibility
1295 Details : Remove portals compatibility, not interoperable with releases
1300 Description: Resolve device initialization race
1301 Details : Prevent proc handler from accessing devices added to the
1302 obd_devs array but yet be intialized.
1304 Severity : enhancement
1306 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1308 Severity : enhancement
1310 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1315 Description: Using wrong pointer in osc_brw_prep_request
1316 Details : Access to array[-1] can produce panic if kernel compiled with
1317 CONFIG_PAGE_ALLOC enabled
1321 Description: Client runs out of low memory
1322 Details : Consider only lowmem when counting initial number of llap pages
1326 Description: *optional* service tags registration
1327 Details : if the "service tags" package is installed on a Lustre node
1328 When the filesystem is mounted, a local-node service tag will
1329 be created. See http://inventory.sun.com/ for more information
1330 about the Service Tags asset management system.
1334 Description: Kernel BUG tries to release flock
1335 Details : Lustre does not destroy flock lock before last reference goes
1336 away. So always drop flock locks when client is evicted and
1337 perform unlock regardless of successfulness of speaking to MDS.
1341 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1345 Description: sanity test 65a fails if stripecount of -1 is set
1346 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1351 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1352 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1355 Severity : enhancement
1357 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1361 Description: do not process already freed flock
1362 Details : flock can possibly be freed by another thread before it reaches
1363 to ldlm_flock_completion_ast.
1367 Description: LBUG during stress test
1368 Details : Need properly lock accesses the flock deadlock detection list.
1372 Description: oops in page fault handler
1373 Details : kernel page fault handler can return two special 'pages' in error
1374 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1378 Description: timeout with invalidate import.
1379 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1380 should be handled by ptlrpcd. This produce long age waiting and
1381 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1383 Severity : enhancement
1385 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1389 Description: enable MGS and MDT services start separately
1390 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1391 a co-located MGS without starting the MGS, which is a complement
1392 to 'nosvc' mount option.
1396 Frequency : after recovery
1397 Description: precreate to many object's after del orphan.
1398 Details : del orphan st in oscc last_id == next_id and this triger growing
1399 count of precreated objects. Set flag LOW to skip increase count
1400 of precreated objects.
1404 Frequency : rare, on clear nid stats
1405 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1406 Details : when clean nid stats sometimes try destroy live entry,
1407 and this produce panic in free.
1411 Description: Stack overflow during MDS log replay
1412 ease stack pressure by using a thread dealing llog_process.
1416 Description: wait until IO finished before start new when do lock cancel.
1417 Details : VM protocol want old IO finished before start new, in this case
1418 need wait until PG_writeback is cleared until check dirty flag and
1419 call writepages in lock cancel callback.
1421 Severity : enhancement
1423 Description: using special macro for print time and cleanup in includes.
1427 Description: mds_mfd_close() ASSERTION(rc == 0)
1428 Details : In mds_mfd_close(), we need protect inode's writecount change
1429 within its orphan write semaphore to prevent possible races.
1433 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1437 Frequency : rare, on shutdown ost
1438 Description: don't hit live lock with umount ost.
1439 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1440 use shrink_dcache_sb instead.
1444 Description: don't panic with use echo client
1445 Details : echo client pass NULL as client nid pointer and this produce null
1446 pointer dereference.
1450 Description: fix build on ppc32
1451 Details : compile code with -m64 flag produce wrong object file for ppc32.
1455 Description: add message levels for liblustreapi
1459 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1460 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1461 will result in an -EAGAIN and in the exit call path we call
1462 alloc_rr() which will with increasing aggressiveness attempt to
1463 aquire precreated objects on the minimum number of required OSCs.
1467 Description: Use old size assignment to avoid deadlock
1468 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1469 the scheduling while holding a spinlock. We do not need locking
1470 for size in ll_update_inode() because size is only updated from
1471 the MDS for directories or files without objects, so there is no
1472 other place to do the update, and concurrent access to such inodes
1473 are protected by the inode lock.
1477 Description: resolve "_IOWR redefined" build error on SLES10
1481 Description: dump the memory debugging after all modules are unloaded to
1482 suppress false negative in conf_sanity test 39
1484 Severity : enhancement
1486 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1491 Description: fix SLES kernel versioning
1492 Details : the kernel version for our SLES 10 kernel did not include a "-"
1493 before the "smp" at the end. while this was not a problem in
1494 general, it did mean that software trying to use the kernel
1495 version to try to detect a vendor specific kernel would fail.
1496 this was most evident by the OFED build scripts.
1500 Description: Don't update lov_desc members until making sure they are valid
1501 Details : When updating lov_desc members via proc fs, need fix their
1502 validities before doing the real update.
1506 Description: don't put request into delay list while invalidate in flight.
1507 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1508 import in flight. this produce timeout for invalidate and sometimes
1509 can cause stale data.
1513 Frequency : on ppc only
1514 Description: not convert ost objects for directory because it's not exist.
1515 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1519 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1521 Severity : enhancement
1523 Description: Update to support 2.6.22.14 vanilla kernel.
1527 Frequency : rare, on recovery
1528 Description: read procfs can produce deadlock in some situation
1529 Details : Holding lprocfs lock which send rpc can produce block for destroy
1530 obd objects and this also block reconnect with -EALREADY. This
1531 isn't fix all lprocfs bugs - but make it rare.
1533 Severity : enhancement
1535 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1538 Frequency : frequent on X2 node
1540 Description: mdc_set_open_replay_data LBUG
1541 Details : Set replay data for requests that are eligible for replay.
1545 Description: lustre_mgs: operation 101 on unconnected MGS
1546 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1547 MGC, and late on MGC cannot successfully connect to MGS and a lot
1548 of the error messages complaining that MGS is not connected.
1552 Frequency : on network error
1553 Description: panic with double free request if network error
1554 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1555 but it's true only for synchronus enqueue, for async enqueue
1556 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1559 Severity : enhancement
1561 Description: client-side metadata stat-ahead during readdir(directory readahead)
1562 Details : perform client-side metadata stat-ahead when the client detects
1563 readdir and sequential stat of dir entries therein
1566 Frequency : on start mds
1568 Description: Implement get_info(last_id) in obdfilter.
1571 Frequency : occasional
1573 Description: Correctly check stale fid, not start epoch if ost not support SOM
1574 Details : open with flag O_CREATE need set old fid in op_fid3 because
1575 op_fid2 was overwritten with new generated fid, but mds can answer
1576 with one of these two fids and both is not stale. Setattr
1577 incorrectly started an epoch and assume will be called
1578 done_writing, but without SOM done_writing ever being called.
1581 Frequency : rare, depends on device drivers and load
1583 Description: MDS or OSS nodes crash due to stack overflow
1584 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1585 In some cases, in conjunction with device drivers that use a lot
1586 of stack the MDS (or possibly OSS) service threads could overflow
1587 the stack. One change which was identified to consume additional
1588 stack has been reworked to avoid the extra stack usage.
1591 Frequency : occasional
1593 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1594 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1595 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1596 oscc_has_objects and see OSC has no objests and call
1597 oscc_internal_create to resend create request.
1599 Severity : enhancement
1601 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1603 Severity : enhancement
1605 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1608 Frequency : very rare
1610 Description: Fix replay if there is an un-replied request and open
1611 Details : In some cases, older replay request will revert the
1612 mcd->mcd_last_xid on MDS which is used to record the client's
1613 latest sent request.
1615 Severity : enhancement
1617 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1619 Severity : enhancement
1621 Description: Add rhel5 support to HEAD.
1623 Serverity : enhancement
1625 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1630 Description: Don't allow skipping OSTs if index has been specified.
1631 Details : Don't allow skipping OSTs if index has been specified, make
1632 locking in internal create lots better.
1636 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1637 Details : access to bitfield in structure is always rounded to long
1638 and this produce problem with not atomic change any bit.
1642 Description: Lustre make rpms failed.
1643 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1644 builds Lustre rpms from tarball.
1647 Frequency : rare on shutdown ost
1649 Description: If llog cancel was not send before clean_exports phase, this can
1650 produce deadlock in llog code.
1651 Details : If llog thread has last reference to obd and call class_import_put
1652 this produce deadlock because llog_cleanup_commit_master wait when
1653 last llog_commit_thread exited, but this never success because was
1654 called from llog_commit_thread.
1658 Description: allow userland application know is lost one of stripes.
1659 Details : fill lvb_blocks with error code on ost and return it to
1660 application if error flag found.
1664 Description: NULL lov_tgts causing MDS oops
1665 Details : more safe checks for NULL lov_tgts for avoid oops.
1667 Severity : enhancement
1669 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1673 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1674 Details : If an OST is down the MDS will hang indefinitely in
1675 obd_statfs_rqset() waiting for the statfs data. While for
1676 MDS QOS usage of statfs, it should not stuck in waiting.
1678 Severity : enhancement
1680 Description: remote_acl support
1681 Details : Support ACL-based permission check for remote user.
1682 Support setfacl/getfacl for remote user with the utils
1683 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1684 the system "{s,g}etfacl" utils.
1686 Severity : enhancement
1688 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1690 Severity : enhancement
1692 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1696 Description: make mgs_setparam() handle fsname containing dash
1697 Details : fsname containing a dash does not work with lctl conf_param
1699 Severity : enhancement
1701 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1703 Severity : enhancement
1705 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1709 Frequency : rare, at shutdown
1710 Description: access already free / zero obd_namespace.
1711 Details : if client_disconnect_export was called without force flag set,
1712 and exist connect request in flight, this can produce access to
1713 NULL pointer (or already free pointer) when connect_interpret
1714 store ocd flags in obd_namespace.
1718 Frequency : only at startup
1719 Description: not alloc memory with spinlock held.
1720 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1721 if any spinlock held.
1723 Severity : enhancement
1725 Description: make lustre randomly fail allocating memory
1726 Details : Make lustre randomly failed allocating memory for testing purpose.
1728 Severity : enhancement
1730 Description: lost problems with lov objid file
1731 Details : Fixes some scability and access to not inited memory problems
1732 in work with lov objdid file.
1737 Description: lfs find does not continue on file error
1738 Details : Continue other files processing when a file/dir is absent.
1742 Description: Inconsistent usage of lustre_pack_reply()
1743 Details : Standardize the usage of lustre_pack_reply() such that it
1744 always generate a CERROR on failure.
1747 Frequency : occasional
1749 Description: MDS hang or stay in waiting lock
1750 Details : If client receive lock with CBPENDING flag ldlm need send lock
1751 cancel as separate rpc, to avoid situation when cancel request
1752 can't processed due all i/o threads stay in wait lock.
1756 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1760 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1764 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1768 Description: Update to RHEL4 latest kernel.
1770 Severity : enhancement
1772 Description: Build SLES10 patchless client fails
1773 Details : The configure was broken by run ./configure with
1774 --with-linux-obj=.... argument for patchless client. When the
1775 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1776 can't search header adequately. Use absolute path such as
1777 -I($LINUX)/include instead.
1781 Description: interrupt oig_wait produce painc on resend.
1782 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1783 private set, and this produce situation when rq_ptlrpcd_data not
1784 copyed to new allocated request and triggered LBUG on assert
1785 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1786 ptlrpcd set if request is changed and can be safety changed to use
1791 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1792 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1793 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1794 these macros and replace them with their difinitions instead.
1798 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1799 Details : Update which_patch & target file for SLES10 latest kernel.
1802 Description: Remove client patches from SLES 10 kernel.
1803 Details : This causes SLES 10 clients to behave as patchless clients
1804 even on a Lustre-patched (server) kernel.
1806 Severity : enhancement
1808 Description: self-adjustable client's lru lists
1809 Details : use adaptive algorithm for managing client cached locks lru
1810 lists according to current server load, other client's work
1811 pattern, memory activities, etc. Both, server and client
1812 side namespaces provide number of proc tunables for controlling
1815 Severity : enhancement
1817 Description: light-weight GSS support
1818 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1819 and reduce performance overhead.
1821 Severity : enhancement
1823 Description: Linux keyring support
1824 Details : Support using service of Linux keyring for Lustre GSS internal
1825 context refresh/cache mechanism.
1829 Description: Fix errors in lfs documentation
1830 Details : Fixes man pages
1834 Description: don't use GFP_* in generic Lustre code.
1835 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1839 Description: obdclass is limited by single OBD_ALLOC(idarray)
1840 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1844 Description: warnings with build patchless client with vanila 2.6.19 and up
1845 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1846 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1850 Frequency : Only for SLES
1851 Description: sanity_quota fail test_1
1852 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1853 file, which makes TSTID[2] inunique.
1857 Frequency : Only for SLES9
1858 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1859 Details : Update target/ChangeLog/which_patch .
1863 Frequency : Only for test_10 in sanity-quota.sh
1864 Description: a bug in quota test code
1865 Details : checking a test flag in a wrong place
1869 Frequency : Only for test_13 in sanity-quota.sh
1870 Description: a bug in quota test script
1871 Details : shouldn't check overfull allocated quota
1875 Description: jbd statistics
1876 Details : Port older jbd statistics patch for sles10
1878 Severity : enhancement
1880 Description: Add printing inode info into message about error in writepage.
1885 Description: reply_lock_interpret crash due to race with it and lock cancel.
1886 Details : Do not replay locks that are being cancelled. Do not reference
1887 locks by their address during replay, just by their handle.
1891 Frequency : When flocks are used.
1892 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1893 Details : Flock locks might destroy just granted lock if it could be merged
1894 with another existing flock, this is done in completion handler,
1895 so teach ldlm_cli_enquque_fini that this is a valid case for
1901 Description: Oops in read and write path when failing to allocate lock.
1902 Details : Check if lock allocation failed and return error back.
1906 Description: lstripe command fails for valid OST index
1907 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1908 instead of lov->desc.ld_active_tgt_count.
1912 Description: sanity.sh failed test 103
1913 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1918 Description: df doesn't work properly if diskfs blocksize != 4K
1919 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1923 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1924 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1926 Severity : enhancement
1928 Description: Adaptive timeouts
1929 Details : RPC timeouts adapt to changing server load and network
1930 conditions to reduce resend attempts and improve recovery time.
1934 Description: llapi_file_create() does not allow some changes
1935 Details : add llapi_file_open() that allows specifying the mode and
1936 open flags, and also returns an open file handle.
1940 Description: merge and cleanup kernel patches.
1941 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1945 Description: Add journal checksum support.(Kernel part)
1946 Details : The journal checksum feature adds two new flags i.e
1947 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1948 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1949 indicates that the commit block contains the checksum for
1950 the blocks described by the descriptor blocks. Now commit
1951 record can be sent to disk without waiting for descriptor
1952 blocks to be written to disk. This behavior is controlled
1953 using JBD2_FEATURE_ASYNC_COMMIT flag.
1957 Description: OSS needs mutliple precreate threads
1958 Details : Add ability to start more than one create thread per OSS.
1962 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1963 Details : execute lfs setstripe on client
1967 Description: mds_obd_create error creating tmp object
1968 Details : When the user sets quota on root, llog will be affected and can't
1969 create files and write files.
1972 Frequency : Always on ia64 patchless client, and possibly others.
1974 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1975 Details : This allows the patchless client to be loaded on architectures
1976 without this export.
1980 Description: RedHat Update kernel for RHEL5
1981 Details : Add the kernel config file for RHEL5.
1985 Description: RedHat Update kernel for RHEL5
1986 Details : Modify the kernel config file more closer RHEL5.
1990 Description: Build failure against Centos5 (RHEL5)
1991 Details : Define PAGE_SIZE when it isn't present.
1995 Description: test_7 on sanity-quota.sh can't be used on separate machines
1996 Details : add facet to handle it
2000 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
2001 Details : with NFS, the anon dentry's parent was set to itself in
2002 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
2003 corresponding dentry other than use rec->ur_name.
2005 Severity : enhancement
2007 Description: lfs setstripe enhancement
2008 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2012 Description: enable data checksumming by default
2013 Details : enable checksum by default, allow --disable-checksum
2014 configure option and "-o nochecksum" mount option. Checksums
2015 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2019 Description: lustre support for RHEL5
2020 Details : Add support for RHEL5.
2024 Description: Client eviction due to failover config
2025 Details : after a connection loss, the lustre client should attempt to
2026 reconnect to the last active server first before trying the
2027 other potential connections.
2031 Description: when mds and osts use different quota unit(32bit and 64bit),
2032 quota will be released repeatly.
2033 Details : void sending multiple quota reqs to mds, which will keep the
2034 status between the reqs.
2038 Description: osts not allocated evenly to files
2039 Details : change the condition to increase offset_idx
2042 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2044 Description: Data corruption for OSTs that are formatted larger than 2TB
2046 Details : When generating the bio request for lustre file writes the
2047 sector number would overflow a temporary variable before being
2048 used for the IO. The data reads correctly from Lustre (which
2049 will overflow in a similar manner) but other file data or
2050 filesystem metadata may be corrupted in some cases.
2054 Description: Tune the kernel for good SCSI performance.
2055 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2056 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2061 Description: rewrite ext2-derived code in obdclass/uuid.c
2062 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2063 from scratch preserving functionality.
2067 Description: "lfs find -obd UUID" prints directories
2068 Details : "lfs find -obd UUID" will return all directory names instead
2069 of just file names. It is incorrect because the directories
2070 do not reside on the OSTs.
2074 Description: use i_size_read and i_size_write in 2.6 port
2075 Details : replace inode->i_size access with i_size_read/write()
2078 Frequency : when removing large files
2080 Description: scheduling issue during removal of large Lustre files
2081 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2082 It causes scheduling issues when removing large files (17TB in the
2086 Frequency : only with liblustre clients on XT3
2088 Description: evictions taking too long
2089 Details : allow llrd to evict clients directly on OSTs
2092 Frequency : only on ppc
2094 Description: /proc/fs/lustre/devices broken on ppc
2095 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2096 We should make sure the type of 'index' is loff_t and then cast
2097 explicitly as needed below. Do not assign an explicitly cast
2101 Frequency : only for rhel5
2103 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2104 Details : Modify the target file & which_kernel.
2106 Severity : enhancement
2108 Description: omit set fsid for export NFS
2109 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2110 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2114 Frequency : Always, for kernels after 2.6.16
2115 Description: Fix warning idr_remove called for id=.. which is not allocated.
2116 Details : Last kernels save old s_dev before kill super and not allow
2117 to restore from callback - restore it before call kill_anon_super.
2121 Description: buffer overruns could theoretically occur
2122 Details : llapi_semantic_traverse() modifies the "path" argument by
2123 appending values to the end of the origin string, and a
2124 overrun may occur. Adding buffer overrun check in liblustreapi.
2128 Description: Fix error on 'ls .' at the top of the Lustre mount.
2129 Details : Don't revalidate dentry if it is a root dentry.
2133 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2134 Details : Modify vm-tunables-rhel4.patch.
2138 Description: Kernel config for 2.6.18-vanilla.
2139 Details : Modify targets/2.6-vanilla.target.in.
2140 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2141 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2142 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2143 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2147 Description: improve handling recoverable errors
2148 Details : if request processig with error which can be recoverable on server
2149 request should be resend, otherwise page released from cache and
2154 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2155 Details : Modify target file & which_patch.
2156 A flaw was found in the IA32 system call emulation provided
2157 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2158 value could be stored in the %RAX register, which could trigger an
2159 out-of-bounds system call table access. An untrusted local user
2160 could exploit this flaw to run code in the kernel
2161 (ie a root privilege escalation). (CVE-2007-4573).
2165 Description: O_DIRECT bypasses client statistics.
2166 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2167 read_ahead_stats were updated. copied the stats section from
2168 osc_send_oap_rpc() into async_internal().
2172 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2176 Description: change order of libsysio includes
2177 Details : '#include sysio.h' should always come before '#include xtio.h'
2181 Description: handle "serious error: objid * already exists" more gracefully
2182 Details : If LAST_ID value on disk is smaller than the objects existing in
2183 the O/0/d* directories, it indicates disk corruption and causes an
2184 LBUG(). If the object is 0-length, then we should use the existing
2185 object. This will help to avoid a full fsck in most cases.
2187 Severity : enhancement
2189 Description: adapt the lustre_config script to support the upgrade case
2190 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2191 server targets to 1.6 in parallel.
2195 Description: To avoid grant space > avaible space when the disk is almost
2196 full. Without this patch you might see the error "grant XXXX >
2197 available" or some LBUG about grant, when the disk is almost
2199 Details : In filter_check_grant, for non_grant cache write, we should
2200 check the left space by if (*left > ungranted + bytes), instead
2201 of (*left > ungranted), because only we are sure the left space
2202 is enough for another "bytes", then the ungrant space should be
2203 increase. In client, we should update cl_avail_grant only there
2204 is OBD_MD_FLGRANT in the reply.
2208 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2209 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2210 described in CVE-2007-4573. This problem could allow untrusted
2211 local users to gain root access.
2214 Frequency : when using O_DIRECT and quotas
2216 Description: Incorrect file ownership on O_DIRECT output files
2217 Details : block usage reported by 'lfs quota' does not take into account
2218 files that have been written with O_DIRECT.
2223 Description: touch file failed when fs is not full
2224 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2225 otherwise we can get ENOSP while fs is not full.
2229 Description: parallel lock callbacks
2230 Details : Instead of sending blocking and completion callbacks as separated
2231 requests, adding them to a set and sending in parallel.
2234 Frequency : only for Cray XT3
2235 Bugzilla : 12829/13455
2236 Description: Changing primary group doesn't change the group lustre assigns to
2238 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2239 overridden with the primary group provided by the group upcall,
2240 whereas the supplied fsgid can be trusted if it is in the list of
2241 supplementary groups returned by the group upcall.
2243 Severity : enhancement
2245 Description: Allow masking D_WARNING, D_ERROR messages from console
2246 Details : Console messages can now be disabled via lnet.printk.
2250 Description: User code with malformed file open parameter crashes client node
2251 Details : Before packing join_file req, all the related reference should be
2252 checked carefully in case some malformed flags cause fake
2253 join_file req on client.
2257 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2258 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2259 mode is equal to the granted mode. However, it should also check
2260 that LDLM_FL_CP_REQD is not set.
2264 Description: Heavy nfs access might result in deadlocks
2265 Details : After ELC code landed, it is now improper to enqueue any mds
2266 locks under och_sem, because enqueue might want to decide to
2267 cancel open locks for same inode we are holding och_sem for.
2271 Description: Client eviction while running blogbench
2272 Details : A lot of unlink operations with concurrent I/O can lead to a
2273 deadlock causing evictions. To address the problem, the number of
2274 oustanding OST_DESTROY requests is now throttled to
2275 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2276 callbacks are processed in priority.
2280 Description: enable ACLs on MDS by default
2281 Details : ACLs must be enabled on MDS by default.
2284 Frequency : PPC/PPC64 only
2286 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2287 Details : fix duplicated definitions between asm-ppc64/types.h and
2288 lustre_types.h on PPC.
2291 Frequency : PPC/PPC64 only
2293 Description: asm-ppc/segment.h does not exist
2294 Details : fix compile issue on PPC.
2298 Description: better handle error messages in extents code
2301 Frequency : RHEL4 only
2303 Description: mkfs is very slow on IA64/RHEL4
2304 Details : A performance regression has been discovered in the MPT Fusion
2305 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2306 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2307 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2309 Severity : enhancement
2311 Description: SNMP support enhancement
2312 Details : Adding total number of sampled request for an MDS node in snmp
2315 Severity : enhancement
2317 Description: Optimize ldlm waiting list processing for PR extent locks
2318 Details : When processing waiting list for read extent lock and meeting read
2319 lock that is same or wider to it that is not contended, skip
2320 processing rest of the list and immediatelly return current
2321 status of conflictness, since we are guaranteed there are no
2322 conflicting locks in the rest of the list.
2326 Description: Time out and refuse to reconnect
2327 Details : When the failover node is the primary node, it is possible
2328 to have two identical connections in imp_conn_list. We must
2329 compare not conn's pointers but NIDs, otherwise we can defeat
2330 connection throttling.
2334 Description: port llog fixes from b1_6 into HEAD
2335 Details : Port llog reference couting and some llog cleanups from b1_6
2336 (bug 10800) into HEAD, for protect from panic and access to already
2337 free llog structures.
2341 Description: Detect stride IO mode in read-ahead
2342 Details : When a client does stride read, read-ahead should detect that and
2343 read-ahead pages according to the detected stride pattern.
2347 Description: data checksumming impacts single node performance
2348 Details : add support for several checksum algorithm. Currently, only CRC32
2349 and Adler-32 are supported. The checksum type can be changed on
2350 the fly via /proc/fs/lustre/osc/*/checksum_type.
2354 Description: use adler32 for page checksums
2355 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2360 Description: build for x2 fails
2361 Details : fix compile issue on Cray systems.
2365 Description: Properly match for duplicate locks
2366 Details : Due to different lock order from skiplists code, we need to
2367 traverse entire list for now
2370 Frequency : only on PPC/SLES10
2372 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2373 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2374 be defined. Add a hack in mkfs_lustre.c to work around this compile
2379 Description: LASSERT on MDS when client holding flock lock dies
2380 Details : ldlm pool logic depends on number of granted locks equal to
2381 number of released locks which is not true for flock locks, so
2382 just exclude such locks from consideration.
2386 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2387 Details : Use fsfilt_sync() for both the whole filesystem sync and
2388 individual file sync to eliminate dangerous inode locking
2389 with I_LOCK that can lead to a deadlock.
2393 Description: performance in 1.6.3
2394 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2395 sure that 1MB requests are not fragmented by the block layer.
2397 Severity : enhancement
2399 Description: organize the server-side client stats on per-nid basis
2400 Details : Change the structure of stats under obdfilter and mds to
2408 The "uuid"s file would list the uuids of _active_ exports.
2409 And the clear entry is to clear all stats and stale nids.
2411 Severity : enhancement
2413 Description: eliminate client locks in face of contention
2414 Details : file contention detection and lockless i/o implementation
2415 for contended files.
2419 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2422 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2424 Description: MDS may lose file striping (and hence file data) in some cases
2425 Details : If there are additional extended attributes stored on the MDS,
2426 in particular ACLs, SELinux, or user attributes (if user_xattr
2427 is specified for the client mount options) then there is a risk
2428 of attribute loss. Additionally, the Lustre file striping
2429 needs to be larger than default (e.g. striped over all OSTs),
2430 and an additional attribute must be stored initially in the
2431 inode and then increase in size enough to be moved to the
2432 external attribute block (e.g. ACL growing in size) for file
2437 Description: skiplist implementation simplification
2438 Details : skiplists are used to group compatible locks on granted list
2439 that was implemented as tracking first and last lock of each
2440 lock group the patch changes that to using doubly linked lists
2444 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2445 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2446 because LASSERT on both the data supplied by a client, and the
2447 data on disk is dangerous and incorrect.
2449 Severity : enhancement
2451 Description: Slow truncate/writes to huge files at high offsets.
2452 Details : Directly associate cached pages to lock that protect those pages,
2453 this allows us to quickly find what pages to write and remove
2454 once lock callback is received.
2458 Description: more ldlm soft lockups
2459 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2460 starve other threads from the resource lock for a long time in
2461 case of long waiting queue, so change the debug level from
2462 D_OTHER to the less frequently used D_INFO.
2464 Severity : enhancement
2466 Description: add -gid, -group, -uid, -user options to lfs find
2470 Description: Hung threads in invalidate_inode_pages2_range
2471 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2472 once one is completed. As a result, some RPCs are stuck in the
2473 queue and are never sent.
2477 Description: filter threads hungs on waiting journal commit
2478 Details : Cleanup filter group llog code, then only filter group llog will
2479 be only created in the MDS/OST syncing process.
2483 Description: Procfs and llog threads access destoryed import sometimes.
2484 Details : Sync the import destoryed process with procfs and llog threads by
2485 the import refcount and semaphore.
2487 Severity : enhancement
2489 Description: openlock cache of b1_6 port to HEAD
2494 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2495 Details : If insertion of an extent fails, then discard the inode
2496 preallocation and free data blocks else it can lead to duplicate
2501 Description: don't always update ctime in ext3_xattr_set_handle()
2502 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2503 In some cases the ctime should not be updated, for example for
2504 2.0->1.8 compatibility it is necessary to delete an xattr and it
2505 should not update the ctime.
2509 Bugzilla : 15713/16362
2510 Description: Assertion in iopen_connect_dentry in 1.6.3
2511 Details : looking up an inode via iopen with the wrong generation number can
2512 populate the dcache with a disconneced dentry while the inode
2513 number is in the process of being reallocated. This causes an
2514 assertion failure in iopen since the inode's dentry list contains
2515 both a connected and disconnected dentry.
2519 Description: assertion failure in ldlm_handle2lock()
2520 Details : fix a race between class_handle_unhash() and class_handle2object()
2521 introduced in lustre 1.6.5 by bug 13622.
2526 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2527 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2532 Description: oops in sd_iostats_seq_show()
2533 Details : unloading/reloading the scsi low level driver triggers a kernel
2534 bug when trying to access the sd iostat file.
2539 Description: Kernel panics during QLogic driver reload
2540 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2541 patch, causing memory corruption.
2546 Description: journal_dev option does not work in b1_6
2547 Details : pass mount option during pre-mount.
2549 Severity : enhancement
2551 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2552 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2553 extent information of a file. It can be used to map logical blocks
2554 in a file to physical blocks in the block device.
2558 Description: LDLM soft lockups - improvement
2559 Details : It is be possible to send the lock handle along with each read
2560 or write request because the client is already doing a lock match
2561 itself so there isn't any reason the OST should have to re-do that
2565 Frequency : only on Cray X2
2567 Description: X2 build failures
2568 Details : fix build failures on Cray X2.
2572 Description: xid & resent requests
2573 Details : Initialize RPC XID from clock at startup (randomly if clock is
2576 Severity : enhancement
2578 Description: Add lustre_start utility to start or stop multiple Lustre servers
2583 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2584 Details : In case of memory pressure, list_del() can be called twice on
2585 req->rq_history_list, causing a kernel oops.
2589 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2590 Details : fix stack overflow in the distributed lock manager by defering
2591 export eviction after a failed AST to the elt thread instead of
2592 handling it in the dlm interpret routine.
2596 Description: Convert some comments to new format.
2597 Details : Update documenting comments to match doxygen conventions.
2601 Description: Grammar fixes.
2602 Details : A couple of trivial spelling fixes.
2606 Description: OSD_COUNTERS-mandatory
2607 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2608 to simplify the code.
2612 Description: simplify cmm_device freeing logic.
2613 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2617 Description: Add lockdep support to dt_object_operations locking interface.
2618 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2619 parameter indicating lock ordering. Update mdd code to use new
2624 Description: Introduce failloc constants for lockless IO tests.
2625 Details : Add two new failloc constants to test lockless IO. Only one of
2626 them in implemented---another is checked in yet to be landed
2631 Description: Add lockdep support for inode mutex.
2632 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2633 in the situations where Lustre has to lock more than one inode
2638 Description: Add optional invariants checking support.
2639 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2640 configure switch. This macro is to be used for consistency and
2641 sanity checks that are too expensive to be left in `production'
2646 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2647 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2652 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2653 Details : Use spin_lock_nested() in (the only) situation where more than
2654 one ldlm_lock is locked simultaneously. Also, fix possible
2655 dead-lock in ldlm_lock_change_resource() by enforcing particular
2660 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2661 Details : Instead of specifying each ldlm_lock call-back through separate
2662 parameter, wrap them into struct ldlm_callback_suite.
2666 Description: Kill join_lru obd method and its callers.
2667 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2668 in memory---a requirement implemented through ->o_join_lru() obd
2669 method in HEAD. Remove this method and its users.
2673 Description: Add asynchronous ldlm ENQUEUE completion handler.
2674 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2675 case that stock ldlm_completion_ast() cannot handle as it waits
2676 until lock is granted. Introduce new ldlm_completion_ast_async()
2677 for this. Also comment ldlm_completion_ast().
2681 Description: ldlm_error <-> errno conversion.
2682 Details : Add functions to map (rather arbitrary) between LDLM error codes
2683 and standard errno values. CLIO needs this to prevent LDLM specific
2684 constants from escaping ldlm and osc.
2688 Description: Kill unused ldlm_handle2lock_ns() function.
2689 Details : Kill unused ldlm_handle2lock_ns() function.
2693 Description: Add lu_ref support to ldlm_lock
2694 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2695 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2696 and ldlm_resource. LDLM interface has to be changed, because code that
2697 releases a reference on a lock, has to "know" what reference this is.
2698 In the most frequent case
2700 lock = ldlm_handle2lock(handle);
2702 LDLM_LOCK_PUT(lock);
2704 no changes are required. When any other reference (received _not_ from
2705 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2706 instead of LDLM_LOCK_PUT().
2708 Arguably, changes are pervasive, and interface requires some discipline
2709 for proper use. On the other hand, it was very instrumental in finding
2710 a few leaked lock references.
2714 Description: Add ldlm_lock_addref_try().
2715 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2716 attempts to addref a lock that might be being canceled
2721 Description: Add ldlm_weigh_callback().
2722 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2723 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2724 hard-coded `number of pages' logic.
2728 Description: Add lockdep annotations to llog code.
2729 Details : Use appropriately tagged _nested() locking calls in the places
2730 where llog takes more than one ->lgh_lock lock.
2734 Description: Add loi_kms_set().
2735 Details : Wrap kms updates into a helper function.
2739 Description: Constify instances of struct lsm_operations.
2740 Details : Constify instances of struct lsm_operations.
2744 Description: lu_conf support.
2745 Details : On a server, a file system object is uniquely identified
2746 by a fid, which is sufficient to locate and load all object
2747 state (inode). On a client, on the other hand, more data are
2748 necessary instantiate an object. Change lu_object_find() and
2749 friends to take additional `lu_conf' argument describing object.
2750 Typically this includes layout information.
2754 Description: lu_context fixes.
2755 Details : Introduce new lu_context functions that are needed on the client
2756 side, where some system threads (ptlrpcd) are shared by multiple
2757 modules, and so cannot be stopped during module shutdown.
2761 Description: Add start and stop methods to lu_device_type_operations.
2762 Details : Introduce two new methods in lu_device_type_operations, that are
2763 invoked when first instance of a given type is created and last one
2764 is destroyed respectively. This is need by CLIO.
2768 Description: Add lu_ref support to struct lu_device.
2769 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2770 track leaked references.
2774 Description: Introduce lu_kmem_descr.
2775 Details : lu_kmem_descr and its companion interface allow to create
2776 and destroy a number of kmem caches at once.
2780 Description: Fix lu_object finalization race.
2781 Details : Fix a race between lu_object_find() finding an object and its
2782 concurrent finalization. This race is (most likely) not possible
2783 on the server, but might happen on the client.
2787 Description: Introduce lu_ref interface.
2788 Details : lu_ref is a debugging module allowing to track references to
2789 a given object. It is quite cpu expensive, and has to be
2790 explicitly enabled with --enable-lu_ref. See usage description
2795 Description: Factor lu_site procfs stats into a separate function.
2796 Details : Separate lu_site stats printing code into a separate function
2797 that can be reused on a client.
2801 Description: Constify instances of struct {lu,dt,md}_device_operations.
2802 Details : Constify instances of struct {lu,dt,md}_device_operations.
2806 Description: Introduce struct md_site and move meta-data specific parts of
2807 struct lu_site here.
2808 Details : Move md-specific fields out of struct lu_site into special struct
2809 md_site, so that lu_site can be used on a client.
2813 Description: Kill mdd_lov_destroy().
2814 Details : Remove unused mdd code.
2818 Description: Add st_block checking to multistat.c.
2819 Details : Add st_block checking to multistat.c.
2823 Description: Add lu_ref support to struct obd_device.
2824 Details : Add lu_ref tracking to obd_device.
2828 Description: Kill obd_set_fail_loc().
2829 Details : Remove unused code.
2833 Description: Add special type for ptlrpc_request interpret functions.
2834 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2835 there. Actual usage will be in CLIO.
2839 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2840 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2841 doesn't work with lockdep.
2845 Description: Add rwv.c test program.
2846 Details : New testing program exercising readv(2) and writev(2) (Qian).
2850 Description: Add sendfile.c test program.
2851 Details : New testing program exercising sendfile(2) (Jay).
2855 Description: Ratelimit a message that can be very frequent.
2856 Details : Ratelimit a memory allocation failure message that can
2861 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2862 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2866 Description: Liblustre build fixes.
2867 Details : Liblustre build fixes.
2871 Description: libcfs: add cfs_{need,cond}_resched() interface.
2872 Details : libcfs: add cfs_{need,cond}_resched() definition and
2873 implementations for Linux, NT, and liblustre.
2875 Severity : enhancement
2877 Description: More exported tunables for mballoc
2878 Details : Add support for tunable preallocation window and new tunables for
2879 large/small requests
2883 Description: Detect corruption of block bitmap and checking for preallocations
2884 Details : Checks validity of on-disk block bitmap. Also it does better
2885 checking of number of applied preallocations. When corruption is
2886 found, it turns filesystem readonly to prevent further corruptions.
2890 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2891 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2892 window to 0. If it does hit cache miss, and read-pattern is still
2893 stride-io mode, does not reset the stride window, but also does not
2894 increase the stride window length in this case.
2898 Frequency : only for big-endian servers
2899 Description: Check if system is big-endian while mounting fs with extents feature
2900 Details : Mounting a filesystem with extents feature will fail on big-endian
2901 systems since ext3-based ldiskfs is not supported on big-endian
2902 systems. This can be over-riden with "bigendian_extents" mount option.
2904 Severity : enhancement
2906 Description: The root squash functionality
2907 Details : A security feature, which is to prevent users from being able
2908 to mount lustre on their desktop, run as root, and delete
2909 all of the files in the filesystem. The goal is accomplished by
2910 remapping user id (UID) and group id (GID) of the root user to
2911 a UID and GID specified by the system administartor via Lustre
2912 configuration management server (MGS). The functionality also
2913 allows to specify sets of clients for which the remapping does
2918 Description: Excessive recovery window
2919 Details : With AT enabled, the recovery window can be excessively long (6000+
2920 seconds). To address this problem, we no longer use
2921 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2922 timeout no longer depends on the service time, it is set to
2923 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2924 time via pb_service_time.
2928 Description: Watchdog triggered on MDS failover
2929 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2930 the OSTs know that the MDS "UUID" can be reused for the same export
2931 from a different NID, so we do not need to wait for the export to be
2935 Frequency : rare, only if using MMP with Linux RAID
2937 Description: MMP doesn't work with Linux RAID
2938 Details : While using HA for Lustre servers with Linux RAID, it is possible
2939 that MMP will not detect multiple mounts. To make this work we
2940 need to unplug the device queue in RAID when the MMP block is being
2941 written. Also while reading the MMP block, we should read it from
2942 disk and not the cached one.
2944 Severity : enhancement
2946 Description: open file using fid
2947 Details : A file can be opened using just its fid, like
2948 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2951 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2954 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2955 Details : add proper locking for creation of jbd_4k slab cache
2959 Description: MMP check in ext3_remount() fails without displaying any error
2960 Details : When multiple mount protection fails during remount, proper error
2963 Severity : enhancement
2965 Description: Allow stripe size to be up to 4G-64k
2966 Details : Fix math logic to allow large stripe sizes.
2970 Description: add check for >8TB ldiskfs filesystems
2971 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2972 Don't allow >8TB ldiskfs filesystems to be mounted without
2973 force_over_8tb mount option
2978 Descriptoin: OSS complains "too many blocks" and crashes
2979 Details : In filter_commitrw_write():
2980 1. lquota_chkquota();
2981 2. obdo_from_inode();
2982 3. lquota_pending_commit();
2983 "2." has changed uid and gid in this case, then caused
2984 lquota_chkquota() and lquota_pending_commit() to use
2985 different uid and gid. That is the root of the bug.
2989 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2990 Details : Detect and print out the 'stripe count = -1' case properly.
2994 Description: Out or order replies might be lost on replay
2995 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2996 request with tid smaller than one currently being added, add it
2997 to the start, not end of the list.
2999 --------------------------------------------------------------------------------
3001 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
3003 * Support for kernels:
3004 2.6.5-7.283 (SLES 9),
3005 2.6.9-55.EL (RHEL 4),
3006 2.6.16.46-0.14 (SLES 10),
3007 2.6.18.8 vanilla (kernel.org)
3008 * Client support for unpatched kernels:
3009 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3010 2.6.16 - 2.6.22 vanilla (kernel.org)
3011 * Due to recently discovered recovery problems, we do not recommend
3012 using patchless RHEL 4 clients with this or any earlier release.
3013 * Recommended e2fsprogs version: 1.39.cfs8
3014 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3015 * Starting with this release, the ldiskfs backing filesystem required
3016 by Lustre is now in its own package, lustre-ldiskfs. This package
3017 should be installed. It is versioned separately from Lustre and
3018 may be released separately in future.
3022 Description: block reactivating mgc import until all deactivates complete
3023 Details : Fix race when failing back MDT/MGS to itself (testing)
3026 Frequency : at statup only
3028 Description: mds_lov_synchronize race leads to various problems
3029 Details : simultaneous MDT->OST connections at startup can cause the
3030 sync to abort, leaving the OSC in a bad state.
3032 Severity : enhancement
3034 Description: add optional extra BUILD_VERSION info
3035 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3036 to override the lustre version.
3039 Frequency : 2.6.18 servers only
3041 Description: ll_kern_mount() doesn't release the module reference
3042 Details : The ldiskfs module reference count never drops down to 0
3043 because ll_kern_mount() doesn't release the module reference.
3048 Description: server LBUG when using old ost_num_threads parameter
3049 Details : Accept the old ost_num_threads parameter but warn that it
3050 is deprecated, and fix an off-by-one error that caused an LBUG.
3055 Description: Transient SCSI error results in persistent IO issue
3056 Details : iobuf->dr_error is not reinitialized to 0 between two
3060 Frequency : sometimes when underlying device returns I/O errors
3062 Description: OSTs not going read-only during write failures
3063 Details : OSTs are not remounted read-only when the journal commit threads
3064 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3065 instead of the ext3 wrappers.
3069 Description: poor connect scaling with increasing client count
3070 Details : Don't run filter_grant_sanity_check for more than 100 exports
3071 to improve scaling for large numbers of clients.
3074 Frequency : SLES10 only
3076 Description: sanity-quota.sh quotacheck failed: rc = -22
3077 Details : Quotas cannot be enabled on SLES10.
3080 Frequency : liblustre clients only
3082 Description: getdirentries does not give error when run on compute nodes
3083 Details : getdirentries does not fail when the size specified as an argument
3084 is too small to contain at least one entry
3086 Severity : enhancement
3088 Description: Add LNET router traceability for debug purposes
3089 Details : If a checksum failure occurs with a router as part of the
3090 IO path, the NID of the last router that forwarded the bulk data
3091 is printed so it can be identified.
3096 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3097 Details : Due to a race condition, liblustre clients were occasionally
3098 evicted incorrectly.
3100 Severity : enhancement
3102 Description: lfs setstripe use optional parameters instead of postional
3105 Severity : enhancement
3107 Description: Nanosecond timestamp support for ldiskfs
3108 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3109 resolution timestamps. There is not yet support for this at
3110 the Lustre filesystem level.
3113 Frequency : during server recovery
3115 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3116 Details : request with rq_no_resend flag not awake l_wait_event if they get
3120 Frequency : nfs export on patchless client
3122 Description: connectathon hang when test nfs export over patchless client
3123 Details : Disconnected dentry cannot be found with lookup, so we do not need
3124 to unhash it or make it invalid
3127 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3128 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3129 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3134 Description: open req refcounting wrong on reconnect
3135 Details : If reconnect happened between getting open reply from server and
3136 call to mdc_set_replay_data in ll_file_open, we will schedule
3137 replay for unreferenced request that we are about to free.
3138 Subsequent close will crash in variety of ways.
3139 Check that request is still eligible for replay in
3140 mdc_set_replay_data().
3145 Description: disable writes to filesystem when reading health_check file
3146 Details : the default for reading the health_check proc file has changed
3147 to NOT do a journal transaction and write to disk, because this
3148 can cause reads of the /proc file to hang and block HA state
3149 checking on a healthy but otherwise heavily loaded system. It
3150 is possible to return to the previous behaviour during configure
3151 with --enable-health-write.
3153 Severity : enhancement
3155 Description: 64-bit inode version
3156 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3157 to the inode. This will be required for version-based recovery.
3162 Description: MDS fails to start if a duplicate client export is detected
3163 Details : in some rare cases it was possible for a client to connect to
3164 an MDS multiple times. Upon recovery the MDS would detect this
3165 and fail during startup. Handle this more gracefully.
3167 Severity : enhancement
3169 Description: Add -o localflock option to simulate old noflock
3171 Details : This will achieve local-only flock/fcntl locks
3177 Description: log_commit_thread vs filter_destroy race leads to crash
3178 Details : Take import reference before releasing llog record semaphore
3183 Description: Wrong request locking in request set processing
3184 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3185 imp_delayed_list, in this place should be used imp_lock.
3188 Frequency : when reconnection
3190 Description: Grant Leak when osc reconnect to OST
3191 Details : When osc reconnect ost, OST(filter) should check whether it
3192 should grant more space to client by comparing fed_grant and
3193 cl_avail_grant, and return the granted space to client instead
3194 of "new granted" space, because client will call osc_init_grant
3195 to update the client grant space info.
3198 Frequency : when client reconnect to OST
3200 Description: Grant Leak when osc do resend and replay bulk write
3201 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3202 bulk write request, because the grant info while be sync between
3203 OSC and OST when reconnect, and we should ignore the grant info
3204 these of resend/replay write req.
3209 Description: Grant space more than available left space sometimes.
3210 Details : When then OST is about to be full, if two bulk writing from
3211 different clients came to OST. Accord the avaliable space of the
3212 OST, the first req should be permitted, and the second one
3213 should be denied by ENOSPC. But if the seconde arrived before
3214 the first one is committed. The OST might wrongly permit second
3215 writing, which will cause grant space > available space.
3218 Frequency : when client is evicted
3220 Description: Grant might be wrongly erased when osc is evicted by OST
3221 Details : when the import is evicted by server, it will fork another
3222 thread ptlrpc_invalidate_import_thread to invalidate the
3223 import, where the grant will be set to 0. While the original
3224 thread will update the grant it got when connecting. So if
3225 the former happened latter, the grant will be wrongly errased
3226 because of this race.
3231 Description: Checking Stale with correct fid
3232 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3233 to check whether it is stale, because sometimes, we want the
3234 enqueue happened anyway, and op_data.fid2 will not be initialized.
3236 Severity : enhancement
3238 Description: update patchless client
3239 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3242 Frequency : only with 2.4 kernel
3244 Description: random memory corruption
3245 Details : size of struct ll_inode_info is to big for union inode.u and this
3246 can be cause of random memory corruption.
3251 Description: Memory leak in recovery
3252 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3253 It should also check obd_fail before fsfilt_start, otherwise if
3254 fsfilt_start return -EROFS,(failover mds during mds recovery).
3255 then the req will return with repmsg->transno = 0 and rc = EROFS.
3256 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3257 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3258 be freed no matter whether fsfilt_commit success or not.
3261 Frequency : only with huge count clients
3263 Description: Prevents from taking the superblock lock in llap_from_page for
3265 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3266 for llap_from_page call in ll_removepage prevents from taking the
3267 superblock lock for a soon died page.
3272 Description: Not check open intent error before release open handle
3273 Details : in some rare cases, the open intent error is not checked before
3274 release open handle, which may cause
3275 ASSERTION(open_req->rq_transno != 0), because it tries to release
3276 the failed open handle.
3281 Description: Set cat log bitmap only after create log success.
3282 Details : in some rare cases, the cat log bitmap is set too early. and it
3283 should be set only after create log success.
3287 Description: Accessing a block bevice can re-enable I/O when Lustre is
3288 tearing down a device.
3289 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3294 Description: service threads may hog cpus when there are a lot of requests
3295 Details : Insert cond_resched to give other threads a chance to use some CPU
3300 Description: the cat log was not initialized in recovery
3301 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3302 unlink log on mds will not be initialized until mds post
3303 recovery. And also in mds post recovery, the unlink log will
3304 initialization will be done asynchronausly, so there will be race
3305 between add unlink log and unlink log initialization.
3309 Description: brw_stats were being printed incorrectly
3310 Details : brw_stats were being printed as log2 but all of them were not
3311 recorded as log2. Also remove some code duplication arising from
3312 filter_tally_{read,write}.
3316 Frequency : rare, only in recovery.
3317 Description: ASSERTION(req->rq_type != LI_POISON) failed
3318 Details : imp_lock should be held while iterating over imp_sending_list for
3319 prevent destroy request after get timeout in ptlrpc_queue_wait.
3323 Description: replay-single.sh test 52 fails
3324 Details : A lock's skiplist need to be cleanup when it being unlinked
3325 from its resource list.
3329 Description: Short directio read returns full requested size rather than
3331 Details : Direct I/O operations should return actual amount of bytes
3332 transferred rather than requested size.
3334 Severity : enhancement
3336 Description: metadata RPC reduction (e.g. for rm performance)
3337 Details : decrease the amount of synchronous RPC between clients and servers
3338 by canceling conflicing lock before the operation on the client
3339 and packing thier handles into the main operation RPC to server.
3341 Severity : enhancement
3343 Description: Async OSC create to avoid the blocking unnecessarily.
3344 Details : If an OST has no remaining object, system will block on the
3345 creation when it needs to create a new object on this OST. Now,
3346 ways use pre-created objects when available, instead of blocking on
3347 an empty osc while others are not empty. If we must block, we
3348 block for the shortest possible period of time.
3352 Description: improve handling recoverable errors
3353 Details : if request processig with error which can be recoverable on server
3354 request should be resend, otherwise page released from cache and
3357 Severity : enhancement
3359 Description: refine locking for avoid write wrong info into lov_objid file
3360 Details : fix possible races with add new target and write/update data in
3363 --------------------------------------------------------------------------------
3365 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3370 Frequency : on some architectures
3372 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3373 Details : Uninitialized flags sometimes cause configuration commands to
3377 Frequency : patchless clients only
3379 Description: missing __iget() symbol export
3380 Details : The __iget() symbol export is missing. To avoid the need for
3381 this on patchless clients the deathrow inode reaper is turned
3382 off, and we depend on the VM to clean up old inodes. This
3383 dependency was during via the fix for bug 12181.
3385 --------------------------------------------------------------------------------
3387 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3389 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3390 INTEROPERATE with older versions automatically. In many cases a
3391 special upgrade step is needed. Please read the
3392 user documentation before upgrading any part of a live system.
3393 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3394 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3395 * WARNING: Lustre configuration and startup changes are required with
3396 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3400 Severity : enhancement
3402 Description: MountConf
3403 Details : Lustre configuration is now managed via mkfs and mount
3404 commands instead of lmc and lconf. New obd types (MGS, MGC)
3405 are added for dynamic configuration management. See
3406 https://mail.clusterfs.com/wikis/lustre/MountConf for
3409 Severity : enhancement
3411 Description: dynamic OST addition
3412 Details : OSTs can now be added to a live filesystem
3414 Severity : enhancement
3416 Description: startup order invariance
3417 Details : MDTs and OSTs can be started in any order. Clients only
3418 require the MDT to complete startup.
3420 Severity : enhancement
3422 Description: parallel, asynchronous orphan cleanup
3423 Details : orphan cleanup is now performed in separate threads for each
3424 OST, allowing parallel non-blocking operation.
3426 Severity : enhancement
3428 Description: optimized stripe assignment
3429 Details : stripe assignments are now made based on ost space available,
3430 ost previous usage, and OSS previous usage, in order to try
3431 to optimize storage space and networking resources.
3433 Severity : enhancement
3435 Description: Permanently set tunables
3436 Details : All writable /proc/fs/lustre tunables can now be permanently
3437 set on a per-server basis, at mkfs time or on a live system.
3439 Severity : enhancement
3441 Description: Lustre message v2
3442 Details : Add lustre message format v2.
3444 Severity : enhancement
3446 Description: client OST exclusion list
3447 Details : Clients can be started with a list of OSTs that should be
3448 declared "inactive" for known non-responsive OSTs.
3452 Description: SPEC SFS validation failure on NFS v2 over lustre.
3453 Details : Changes the blocksize for regular files to be 2x RPC size,
3454 and not depend on stripe size.
3456 Severity : enhancement
3458 Description: Multiple MD RPCs in flight.
3459 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3460 To avoid overly-overloading MDS, introduce a limit on number of
3461 MDS RPCs in flight for a single client and add /proc controls
3462 to adjust this limit.
3464 Severity : enhancement
3466 Description: client read/write statistics
3467 Details : Add client read/write call usage stats for performance
3468 analysis of user processes.
3469 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3470 file access. extents_stats shows chunk size distribution.
3471 extents_stats_per_process show chunk size distribution per
3474 Severity : enhancement
3476 Description: mds statistics
3477 Details : Add detailed mds operations statistics in
3478 /proc/fs/lustre/mds/*/stats.
3482 Description: Failure of copying files with lustre special EAs.
3483 Details : Client side always return success for setxattr call for lustre
3484 special xattr (currently only "trusted.lov").
3489 Description: Refcount LNET uuids
3490 Details : The global LNET uuid list grew linearly with every startup;
3491 refcount repeated list entries instead of always adding to
3494 Severity : enhancement
3496 Description: Dynamic service threads
3497 Details : Within a small range, start extra service threads
3498 automatically when the request queue builds up.
3501 Frequency : mixed-endian client/server environments
3503 Description: mixed-endian crashes
3504 Details : The new msg_v2 system had some failures in mixed-endian
3507 Severity : enhancement
3509 Description: Easy OST removal
3510 Details : OSTs can be permanently deactivated with e.g. 'lctl
3511 conf_param lustre-OST0001.osc.active=0'
3513 Severity : enhancement
3515 Description: MGS proc entries
3516 Details : Added basic proc entries for the MGS showing what filesystems
3519 Severity : enhancement
3521 Description: provide MGS failover
3522 Details : Added config lock reacquisition after MGS server failover.
3524 Severity : enhancement
3526 Description: add Linux 2.4 support
3527 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3531 Description: a large application tries to do I/O to the same resource and dies
3532 in the middle of it.
3533 Details : Check the req->rq_arrival time after the call to
3534 ost_brw_lock_get(), but before we do anything about
3535 processing it & sending the BULK transfer request. This
3536 should help move old stale pending locks off the queue as
3537 quickly as obd_timeout.