3 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
4 for currently supported client and server kernel versions.
5 * Server primary kernels built and tested during release cycle:
6 3.10.0-1062.18.1.el7 (RHEL7.7)
7 3.10.0-1127.19.1.el7 (RHEL7.8)
8 * 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 4.18.0-193.6.3.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 kernels built and tested during release cycle:
21 3.10.0-1062.18.1.el7 (RHEL7.7)
22 3.10.0-1127.19.1.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 these 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 4.18.0-193.6.3.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 5.4.0-37 (Ubuntu 20.04)
39 5.4.0 (vanilla kernel.org)
40 * Recommended e2fsprogs version: 1.45.6.wc1 or newer
41 * Recommended ZFS version: 0.8.4
42 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
43 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
44 stack overflow. For more information, please refer to bugzilla 17630.
45 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
46 the re-exporting nodes to be mounted with "32bitapi" mount option
48 --------------------------------------------------------------------------------
52 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
53 for currently supported client and server kernel versions.
54 * Server primary kernels built and tested during release cycle:
55 3.10.0-1062.1.1.el7 (RHEL7.7)
56 * Other server kernels known to build and work at some point (others may also work):
57 3.10.0-862.14.4.el7 (RHEL7.5)
58 3.10.0-957.27.2.el7 (RHEL7.6)
59 4.18.0-80.7.1.el8 (RHEL8.0)
60 4.4.120-92.70 (SLES12 SP2)
61 4.4.180-94.100 (SLES12 SP3)
62 4.4.0-131 (Ubuntu 16.04)
63 4.15.0-32 (Ubuntu 18.04)
64 vanilla linux 4.6.7 (ZFS only)
65 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
66 * Client primary unpatched kernels built and tested during release cycle:
67 3.10.0-1062.1.1.el7 (RHEL7.7)
68 4.12.14-95.29 (SLES12 SP4)
69 4.15.0-48 (Ubuntu 18.04)
70 * Other clients known to build on unpatched kernels at some point (others may also work):
71 3.10.0-862.14.4.el7 (RHEL7.5)
72 3.10.0-957.27.2.el7 (RHEL7.6)
73 4.14.0-49.13.1.el7a (RHEL7.5)
74 4.14.0-115.2.2.el7a (RHEL7.6)
75 4.18.0-80.7.1.el8 (RHEL8.0)
76 4.4.120-92.70 (SLES12 SP2)
77 4.4.180-94.100 (SLES12 SP3)
78 4.4.0-131 (Ubuntu 16.04)
79 vanilla linux 4.15.0 (ZFS only)
80 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
81 * Recommended ZFS / SPL version: 0.7.13
82 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
83 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
84 stack overflow. For more information, please refer to bugzilla 17630.
85 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
86 the re-exporting nodes to be mounted with "32bitapi" mount option
87 * Note for Ubuntu 14.04.5:
88 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
89 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
91 --------------------------------------------------------------------------------
95 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
96 for currently supported client and server kernel versions.
97 * Server known to build on the following kernels (others may also work):
98 2.6.32-696.18.7.el6 (RHEL6.9)
99 3.10.0-862.14.4.el7 (RHEL7.5)
100 3.10.0-957.el7 (RHEL7.6)
101 4.4.120-92.70 (SLES12 SP2)
102 4.4.162-94.69 (SLES12 SP3)
103 4.4.0-131 (Ubuntu 16.04)
104 4.15.0-32 (Ubuntu 18.04)
105 vanilla linux 4.6.7 (ZFS only)
106 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
107 * Client known to build on unpatched kernels (others may also work):
108 2.6.32-696.18.7.el6 (RHEL6.9)
109 2.6.32-754.6.3.el6 (RHEL6.10)
110 3.10.0-862.14.4.el7 (RHEL7.5)
111 3.10.0-957.el7 (RHEL7.6)
112 4.14.0-49.13.1.el7a (RHEL7.5)
113 4.14.0-115.2.2.el7a (RHEL7.6)
114 4.4.120-92.70 (SLES12 SP2)
115 4.4.162-94.69 (SLES12 SP3)
116 4.4.0-131 (Ubuntu 16.04)
117 4.15.0-32 (Ubuntu 18.04)
118 vanilla linux 4.15.0 (ZFS only)
119 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
120 * Recommended ZFS / SPL version: 0.7.9
121 * Tested with ZFS / SPL version: 0.7.9
122 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
123 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
124 stack overflow. For more information, please refer to bugzilla 17630.
125 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
126 the re-exporting nodes to be mounted with "32bitapi" mount option
127 * Note for Ubuntu 14.04.5:
128 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
129 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
131 --------------------------------------------------------------------------------
133 2018-04-03 Intel Corporation
135 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
136 for currently supported client and server kernel versions.
137 * Server known to build on patched kernels:
138 2.6.32-431.29.2.el6 (RHEL6.5)
139 2.6.32-504.30.3.el6 (RHEL6.6)
140 2.6.32-573.26.1.el6 (RHEL6.7)
141 2.6.32-642.15.1.el6 (RHEL6.8)
142 2.6.32-696.18.7.el6 (RHEL6.9)
143 3.10.0-693.21.1.el7 (RHEL7.4)
144 3.0.101-0.47.71 (SLES11 SP3)
145 3.0.101-107 (SLES11 SP4)
146 3.12.74-60.64.40 (SLES12 SP1)
147 4.4.114-92.64 (SLES12 SP2)
148 4.4.114-94.11 (SLES12 SP3)
149 3.13.0-101 (Ubuntu 14.04, ZFS only)
150 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
151 4.4.0-116 (Ubuntu 16.04)
152 vanilla linux 4.6.7 (ZFS only)
153 * Client known to build on unpatched kernels:
154 2.6.32-431.29.2.el6 (RHEL6.5)
155 2.6.32-504.30.3.el6 (RHEL6.6)
156 2.6.32-573.26.1.el6 (RHEL6.7)
157 2.6.32-642.15.1.el6 (RHEL6.8)
158 2.6.32-696.18.7.el6 (RHEL6.9)
159 3.10.0-693.21.1.el7 (RHEL7.4)
160 3.0.101-0.47.71 (SLES11 SP3)
161 3.0.101-107 (SLES11 SP4)
162 3.12.74-60.64.40 (SLES12 SP1)
163 4.4.114-92.64 (SLES12 SP2)
164 4.4.114-94.11 (SLES12 SP3)
165 3.13.0-101 (Ubuntu 14.04)
166 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
167 4.4.0-116 (Ubuntu 16.04)
169 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
170 * Recommended ZFS / SPL version: 0.7.6
171 * Tested with ZFS / SPL version: 0.7.6
172 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
173 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
174 stack overflow. For more information, please refer to bugzilla 17630.
175 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
176 the re-exporting nodes to be mounted with "32bitapi" mount option
177 * Note for Ubuntu 14.04.5:
178 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
179 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
181 --------------------------------------------------------------------------------
183 2017-07-05 Intel Corporation
185 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
186 for currently supported client and server kernel versions.
187 * Server known to build on patched kernels:
188 2.6.32-431.29.2.el6 (RHEL6.5)
189 2.6.32-504.30.3.el6 (RHEL6.6)
190 2.6.32-573.26.1.el6 (RHEL6.7)
191 2.6.32-642.15.1.el6 (RHEL6.8)
192 2.6.32-696.3.1.el6 (RHEL6.9)
193 3.10.0-514.21.1.el7 (RHEL7.3)
194 3.0.101-0.47.71 (SLES11 SP3)
195 3.0.101-100 (SLES11 SP4)
196 3.12.74-60.64.40 (SLES12 SP1)
197 4.4.59-92.17 (SLES12 SP2)
198 vanilla linux 4.6.7 (ZFS only)
199 * Client known to build on unpatched kernels:
200 2.6.32-431.29.2.el6 (RHEL6.5)
201 2.6.32-504.30.3.el6 (RHEL6.6)
202 2.6.32-573.26.1.el6 (RHEL6.7)
203 2.6.32-642.15.1.el6 (RHEL6.8)
204 2.6.32-696.3.1.el6 (RHEL6.9)
205 3.10.0-514.21.1.el7 (RHEL7.3)
206 3.0.101-0.47.71 (SLES11 SP3)
207 3.0.101-100 (SLES11 SP4)
208 3.12.74-60.64.40 (SLES12 SP1)
209 4.4.59-92.17 (SLES12 SP2)
211 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
212 * Recommended ZFS / SPL version: 0.6.5.9
213 * Tested with ZFS / SPL version: 0.6.5.9
214 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
215 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
216 stack overflow. For more information, please refer to bugzilla 17630.
217 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
218 the re-exporting nodes to be mounted with "32bitapi" mount option
220 --------------------------------------------------------------------------------
222 12-07-2016 Intel Corporation
224 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
225 for currently supported client and server kernel versions.
226 * Server known to build on patched kernels:
227 2.6.32-431.29.2.el6 (RHEL6.5)
228 2.6.32-504.30.3.el6 (RHEL6.6)
229 2.6.32-573.26.1.el6 (RHEL6.7)
230 2.6.32-642.11.1.el6 (RHEL6.8)
231 3.10.0-514.el7 (RHEL7.3)
232 3.0.101-0.47.71 (SLES11 SP3)
233 3.0.101-80 (SLES11 SP4)
234 3.12.62-60.64.8 (SLES12 SP1)
235 vanilla linux 4.5.7 (ZFS only)
236 * Client known to build on unpatched kernels:
237 2.6.32-431.29.2.el6 (RHEL6.5)
238 2.6.32-504.30.3.el6 (RHEL6.6)
239 2.6.32-573.26.1.el6 (RHEL6.7)
240 2.6.32-642.11.1.el6 (RHEL6.8)
241 3.10.0-514.el7 (RHEL7.3)
242 3.0.101-0.47.71 (SLES11 SP3)
243 3.0.101-80 (SLES11 SP4)
244 3.12.62-60.64.8 (SLES12 SP1)
246 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
247 * Recommended ZFS / SPL version: 0.6.5.8
248 * Tested with ZFS / SPL version: 0.6.5.8
249 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
250 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
251 stack overflow. For more information, please refer to bugzilla 17630.
252 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
253 the re-exporting nodes to be mounted with "32bitapi" mount option
255 --------------------------------------------------------------------------------
257 02-29-2016 Intel Corporation
259 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
260 for currently supported client and server kernel versions.
261 * Server known to build on patched kernels:
262 2.6.32-431.29.2.el6 (RHEL6.5)
263 2.6.32-504.30.3.el6 (RHEL6.6)
264 2.6.32-573.12.1.el6 (RHEL6.7)
265 3.10.0-327.3.1.el7 (RHEL7.2)
266 3.0.101-0.47.71 (SLES11 SP3)
267 3.0.101-68 (SLES11 SP4)
268 vanilla linux 4.2.1 (ZFS only)
269 * Client known to build on unpatched kernels:
270 2.6.32-431.29.2.el6 (RHEL6.5)
271 2.6.32-504.30.3.el6 (RHEL6.6)
272 2.6.32-573.12.1.el6 (RHEL6.7)
273 3.10.0-327.3.1.el7 (RHEL7.2)
274 3.0.101-0.47.71 (SLES11 SP3)
275 3.0.101-68 (SLES11 SP4)
278 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
279 * Recommended ZFS / SPL version: 0.6.4.2
280 * Tested with ZFS / SPL version: 0.6.4.2
281 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
282 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
283 stack overflow. For more information, please refer to bugzilla 17630.
284 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
285 the re-exporting nodes to be mounted with "32bitapi" mount option
287 --------------------------------------------------------------------------------
289 03-10-2015 Intel Corporation
291 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
292 for currently supported client and server kernel versions.
293 * Server known to build on patched kernels:
294 2.6.32-431.29.2.el6 (RHEL6.5)
295 2.6.32-504.8.1.el6 (RHEL6.6)
296 3.0.101-0.46 (SLES11 SP3)
297 * Client known to build on unpatched kernels:
298 2.6.32-431.29.2.el6 (RHEL6.5)
299 2.6.32-504.8.1.el6 (RHEL6.6)
300 3.10.0-123.20.1.el7 (RHEL7)
301 3.0.101-0.46 (SLES11 SP3)
302 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
303 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
304 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
305 stack overflow. For more information, please refer to bugzilla 17630.
306 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
307 the re-exporting nodes to be mounted with "32bitapi" mount option
309 Severity : enhancement
311 Description: control OST-index in IDIF via ROCOMPAT flag.
312 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
313 last_rcvd file. For new formatted OST device, it will be auto set;
314 for the case of upgrading from old OST device, you can enable it
315 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
316 enabled, for new created OST-object, its IDIF-in-LMA will contain
317 the OST-index; for the existing OST-object, the OSD will convert
318 old format IDIF as new format IDIF with OST-index stored in the
319 LMA EA when accessing such OST-object or via OI scrub. Once such
320 flag is enabled, it cannot be reverted back, so the system cannot
321 be downgraded to the orignal incompatible version.
323 --------------------------------------------------------------------------------
325 07-30-2014 Intel Corporation
327 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
328 for currently supported client and server kernel versions.
329 * Server known to build on patched kernels:
330 2.6.32-431.20.3.el6 (RHEL6.5)
331 3.0.101-0.31 (SLES11 SP3)
332 * Client known to build on unpatched kernels:
333 2.6.32-431.20.3.el6 (RHEL6.5)
334 3.0.101-0.31 (SLES11 SP3)
337 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
338 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
339 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
340 stack overflow. For more information, please refer to bugzilla 17630.
341 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
342 the re-exporting nodes to be mounted with "32bitapi" mount option
344 --------------------------------------------------------------------------------
346 10-31-2013 Intel Corporation
348 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
349 * Server builds for kernels:
350 2.6.32-358.18.1.el6 (RHEL6.4)
351 * Client builds for unpatched kernels:
352 2.6.32-358.18.1.el6 (RHEL6.4)
353 3.0.92-0.8 (SLES11 SP3)
355 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
356 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
357 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
358 stack overflow. For more information, please refer to bugzilla 17630.
359 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
360 the re-exporting nodes to be mounted with "32bitapi" mount option
362 --------------------------------------------------------------------------------
364 05-30-2013 Intel Corporation
366 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
367 * Server builds for kernels:
368 2.6.32-358.6.2.el6 (RHEL6.4)
369 * Client builds for unpatched kernels:
370 2.6.32-358.6.2.el6 (RHEL6.4)
371 3.0.74-0.6.6 (SLES11 SP2)
373 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
374 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
375 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
376 stack overflow. For more information, please refer to bugzilla 17630.
377 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
378 the re-exporting nodes to be mounted with "32bitapi" mount option
380 --------------------------------------------------------------------------------
382 9-30-2012 Whamcloud, Inc.
384 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
385 * Server support for kernels:
386 2.6.32-279.5.1.el6 (RHEL6)
387 * Client support for unpatched kernels:
388 2.6.32-279.5.1.el6 (RHEL6)
390 2.6.18-238.19.1.el5 (RHEL5)
391 2.6.16.60-0.69.1 (SLES10)
392 * Recommended e2fsprogs version: 1.41.90.wc4
393 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
394 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
395 stack overflow. For more information, please refer to bugzilla 17630.
396 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
397 the re-exporting nodes to be mounted with "32bitapi" mount option
399 Severity : enhancement
401 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
403 Severity : enhancement
405 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
407 Severity : enhancement
409 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
411 Severity : enhancement
413 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
415 Severity : enhancement
417 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
419 --------------------------------------------------------------------------------
421 04-30-2012 Whamcloud, Inc.
423 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
424 * Server support for kernels:
425 2.6.32-220.4.2.el6 (RHEL6)
426 * Client support for unpatched kernels:
427 2.6.32-220.4.2.el6 (RHEL6)
429 2.6.18-238.19.1.el5 (RHEL5)
430 2.6.16.60-0.69.1 (SLES10)
431 * Recommended e2fsprogs version: 1.41.90.wc4
432 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
433 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
434 stack overflow. For more information, please refer to bugzilla 17630.
435 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
436 the re-exporting nodes to be mounted with "32bitapi" mount option
438 Severity : enhancement
440 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
442 Severity : enhancement
444 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
446 Severity : enhancement
448 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
450 Severity : enhancement
452 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
454 --------------------------------------------------------------------------------
456 09-30-2011 Whamcloud, Inc.
458 * Server support for kernels:
459 2.6.18-238.19.1.el5 (RHEL5)
460 2.6.32-131.6.1.el6 (RHEL6)
461 * Client support for unpatched kernels:
462 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
463 2.6.18-238.19.1.el5 (RHEL5)
464 2.6.32-131.6.1.el6 (RHEL6)
465 2.6.29.4-167.fc11 (FC11)
466 2.6.16.60-0.69.1 (SLES10)
468 * Recommended e2fsprogs version: 1.41.90.wc3
469 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
470 Lustre filesystem with 4K stack may cause a stack overflow. For more
471 information, please refer to bugzilla 17630.
472 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
473 mounted with "32bitapi" mount option
475 Severity : enhancement
476 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
478 Severity : enhancement
479 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
481 Severity : enhancement
482 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
485 Frequency : only with SLES10
487 Description: Use OFED "KMP" provided by Novell
488 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
489 Lustre is now built against this package. That means you need to
490 install the ofed-kmp package from Novell for the patchless client.
491 Note that the ofed-kmp that Novell ships may not exactly match the
492 kernel version but should still be compatible.
494 Severity : enhancement
496 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
497 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
499 --------------------------------------------------------------------------------
501 2010-07-15 Oracle, Inc.
503 * Server support for kernels:
504 2.6.18-164.11.1.el5 (RHEL 5)
505 2.6.18-164.11.1.0.1.el5 (OEL 5)
506 * Client support for unpatched kernels:
507 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
508 2.6.18-164.11.1.el5 (RHEL 5),
509 2.6.18-164.11.1.0.1.el5 (OEL 5)
510 2.6.16.60-0.42.8 (SLES 10),
512 2.6.29.4-167.fc11 (FC11)
513 * Recommended e2fsprogs version: 1.41.10-sun2
515 Severity : enhancement
517 Description: Distribute lfs_migrate script with lustre
518 Details : The lfs_migrate mentioned in the manual is now included in the
519 lustre tree in lustre/scripts and will distributed in lustre RPMs.
521 Severity : enhancement
523 Description: Failover nid list added to import proc file.
525 Severity : enhancement
527 Description: "som_preview" mount option required to use SOM
528 Details : The clients will need to use som_preview mount option
532 Description: Lustre does not do 1MB IOs to HW RAID
533 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
535 Severity : enhancement
537 Description: lfs quota output is not very convenient for awk/sed-parsing
538 Details : Some positions in lfs quota output table could be empty or
539 non-empty which made it hard to parse it with scripts, now
540 a dash is put instead of space where there is not supposed
545 Description: Update to OFED 1.5.1
546 Details : OFED 1.5.1 will be used in environments that don't use
547 vendor supplied OFED.
551 Description: Remove lnet. prefix from lctl params display
552 Details : Also renamed lnet.memused to lnet_memused to
557 Description: Use conf_param -d to remove permanant settings.
561 Description: Add list_param -R
562 Details : lctl list_param now supports recursive mode.
565 Bugzilla : 21829, 22312
566 Description: Fix llobdstat.
567 Details : 1. Now updating the write_bytes counter
568 2. Port script fixes from 1.8.
572 Description: decrease the usage of memory on clients.
573 Details : 1. On clients, recycle dentries and inodes unused.
574 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
579 Description: llobdstat fix and enhancement
580 Details : add a counter to set a limit to how many samples will be returned
581 fix a wildcard in the path to limit to obdfilter stats only
585 Description: lfs check only allowed for root
586 Details : Code cleanups and added a regresion test of non-root use of
591 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
592 Details : Fix hr->hr_index overload.
596 Description: Fix FIEMAP functionality.
600 Description: FC11 patchless client support added
604 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
605 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
609 Description: New acc-sm script and various test-framework enhancments.
613 Description: Previously landed patch was reverted.
617 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
621 Description: Add ldiskfs maxdirsize mount option.
625 Description: Fix mkfs.lustre support for 16TB LUNs.
629 Description: Print mmp_check_interval
630 Details : print mmp_check_interval and make it possible to abort
631 mount operation in case it takes too long.
635 Description: Add cascading_rw to lustre mpi tests.
639 Description: Store SOM data in EA.
640 Details : Also several SOM related cleanups.
644 Description: Add refcount to md_open_data
648 Description: Use refcount on lov_request_set to prevent memory corruption.
652 Description: Statahead: use parent dir's i_mutex for synchronization.
656 Description: loadgen improvements.
660 Description: Enable peer health detection in ksocklnd and ko2iblnd.
664 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
668 Description: Fix race on obd_devcie:md_stats
672 Description: Fix SLES 11 client builds.
673 Details : Resolved uninitalized pointer gcc warnings.
677 Description: Allow non-root access for "lfs check".
678 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
682 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
684 Severity : enhancement
686 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
687 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
691 Description: Sanity test_27p fails.
692 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
693 Sanity tests 27 were cleaned up and improved.
697 Description: Unify req format on client/servers
698 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
699 buffers and swabbers approach..
704 Description: drop join file stuff.
706 Severity : enhancement
708 Description: Add 2.6.27 and SLES11 (patchless client) support
712 Description: Fix in ptlrpc_expire_one_request() to print the signed time
715 Severity : enhancement
717 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
720 Severity : enhancement
722 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
724 Severity : enhancement
726 Description: correctly handle big reply message.
727 Details : send LNet event if reply is bigger than buffer and adjust this buffer
732 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
734 Severity : enhancement
736 Description: Add support for OEL5.
740 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
742 Severity : enhancement
744 Description: "weak-modules" support
745 Details : Implement "weak-modules" support which enables kernel modules
746 to be used with any kernel that implements the same kABI. In
747 order to achieve this modules are now installed in
748 /lib/modules/$(uname -r)/updates/kernel on all distributions.
752 Description: client could not reconnect to OST because of an active request.
753 Details : The client now retries to reconnect to the same server, if a
754 connect request failed with EBUSY or -EAGAIN. Test case 35b
755 conf-sanity.sh has been created.
759 Description: Don't allow make backward step on assignin osc next id.
760 Details : race between allocation next id and ll_sync thread can be cause
761 of set wrong osc next id and can be kill valid ost objects.
765 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
769 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
773 Description: Error handling in osc_statfs_interpret() has been improved.
774 Details : Check in osc_statfs_interpret() for EBADR.
778 Description: Do not send statfs() requests to OSTs disabled by administrator.
779 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
781 Severity : enhancement
783 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
785 Severity : enhancement
787 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
789 Severity : enhancement
791 Description: Enhancement for lfs(1) command to use numeric uid/gid.
795 Description: Improved cleanup procedure for conf-sanity test_46a.
799 Description: Do not start bulk transfer, if client tried to reconnect.
800 Details : Do not start bulk transfer, if client tried to reconnect,
801 but failed due to active rpcs. Check for exp_abort_active_req
802 has been implemented.
806 Description: Prevent inconsistences between linux and lustre mount structures.
807 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
808 Make the sleep interruptible.
810 Severity : enhancement
812 Description: provide server to client comms path
813 Details : server to client communications path via new LDLM_SET_INFO rpc
817 Description: truncate starts GFP_FS allocation under transaction causing deadlock
818 Details : ldiskfs_truncate calls grab_cache_page which may start page
819 allocation under an open transaction. This may lead to
820 calling prune_icache with consequent lustre reentrance.
824 Description: send correctly lsm on open replay
825 Details : MDS is trust to LSM size on replay open, but client can set wrong size
830 Description: enable client interface failover
831 Details : When a child reconnects from another NID, properly update export
832 nid hash position and ldlm reverse import.
834 Severity : enhancement
836 Description: Communicate OST degraded/readonly state via statfs to MDS
837 Details : Flags in the statfs returned from OSTs indicate whether the
838 OST is in a degraded RAID state, or if the filesystem has
839 turned read-only after a filesystem error is detected.
844 Description: don't panic if EPROTO was hit when reading symlink
845 Details : correctly handling request reference in error cases.
847 Severity : enhancement
849 Description: Add LustreNetLink, a kernel-userspace communcation path.
851 Severity : enhancement
853 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
858 Description: access to llog context before init.
859 Details : move handling CATALOGS file at osc layer and forbid access to llog
863 Frequency : rare, only when client is writing to OST on local node
865 Description: Avoid deadlock for local client writes
866 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
867 memory freeing context. This allows OST threads to set the
868 PF_MEMALLOC flag on task structures in order to allocate memory
869 from reserved pools and complete IO.
870 Use GFP_HIGHUSER for OST allocations for non-local client writes,
871 so that the OST threads generate memory pressure and allow
872 inactive pages to be reclaimed.
874 Severity : enhancement
876 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
881 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
882 Details : move ldlm namespace creation in setup phase to avoid grab
883 _lprocfs_lock with cli_sem held.
887 Description: Temporarily disable grant shrink.
888 Details : Disable the feature for debugging.
891 Frequency : only when formatting test filesystems
893 Description: Unable to run several mkfs.lustre on loop devices at the same time
894 Details : mkfs.lustre returns error 256 on the concurrent loop devices
895 formatting. The solution is to proper handle the error.
897 Severity : enhancement
899 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
901 Severity : enhancement
903 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
908 Description: resolve race between obd_disconnect and class_disconnect_exports
909 Details : if obd_disconnect will be called to already disconnected export he
910 forget release one reference and osc module can't unloaded.
912 Severity : enhancement
914 Description: Allow tuning service thread via /proc
915 Details : For each service a new
916 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
917 created that can be used to set min/max thread counts, and get the
918 current number of running threads.
923 Descriptoin: don't return error if have partially created objects for file.
924 Details : lov_update_create_set uses set->set_success as index for created
925 objects, so if some requests will be failed, they will have hole
926 at end of array and qos_shrink_lsm for allocate correct lsm.
928 Severity : enhancement
930 Description: Update OFED support to 1.4.1
935 Description: Reduce small size read RPC
936 Details : Set read-ahead limit for every file and only do read-ahead when
937 available read-ahead pages are bigger than 1M to avoid small size
940 Severity : enhancement
942 Description: move AT tunable parameters for more consistent usage
943 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
945 Severity : enhancement
947 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
948 Details : allow skip disconnected ost for send statfs request and hide error
954 Description: fix racy locking of mballoc block bitmaps causing BUG
955 Details : The locking of the mballoc buddy bitmap and the in-memory
956 block bitmap was using two different spin locks in some
957 cases. This made it possible to incorrectly access the
958 mballoc bitmap while another process was modifying it,
959 causing a sanity assertion to fail. While no on-disk corruption
960 was reported, there was some risk of this happening.
963 Frequency : rare, on llog test 6
965 Descriptoin: don't allow connect to already connected import
966 Details : allowing connect to already connected import is hide connecting problem.
971 Descriptoin: allow kill process which wait statahead result
972 Details : for some reasons 'ls' can stick in waiting result from statahead,
973 in this case need way for kill this process.
975 Severity : enhancement
977 Description: Add state history info file, enhance import info file
978 Details : Track import connection state changes in a new osc/mdc proc file;
979 add overview-type data to the osc/mdc import proc file.
981 Severity : enhancement
983 Description: MDS create should not wait for statfs RPC while holding DLM lock.
985 Severity : enhancement
987 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
992 Descriptoin: OST grant too much space to client even there are not enough space.
993 Details : Client will shrink its grant cache to OST if there are no write
994 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
995 this grant cache if there are already not enough avaible space
996 (left_space < total_clients * 32M).
999 Frequency : start MDS on uncleanly shutdowned MDS device
1001 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
1002 Details : stay in waiting mds<>ost recovery finished produce random bugs
1003 due race between two ll_sync thread for one lov target. send
1004 ACTIVATE event only if connect realy finished and import have
1008 Frequency : rare, connect and disconnect target at same time
1010 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1011 Details : don't call obd_disconnect under lov_lock. this long time
1012 operation and can block ptlrpcd which answer to connect request.
1017 Descriptoin: don't lose wakeup for imp_recovery_waitq
1018 Details : recover_import_no_retry or invalidate_import and import_close can
1019 both sleep on imp_recovery_waitq, but we was send only one wakeup
1023 Frequency : always with long access acl
1025 Descriptoin: mds can't pack reply with long acl.
1026 Details : mds don't control size of acl but they limited by reint/getattr
1029 Severity : enhancement
1031 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1033 Severity : enhancement
1035 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1038 Frequency : start MDS on uncleanly shutdowned MDS device
1040 Descriptoin: aborting recovery hang on MDS
1041 Details : don't throttle destroy RPCs for the MDT.
1044 Frequency : on remount
1046 Description: external journal device not working after the remount
1047 Details : clear dev_rdonly flag for external journal devices in
1053 Description: shutdown vs evict race
1054 Details : client_disconnect_export vs connect request race.
1055 if client will evicted at this time - we start invalidate
1056 thread without referece to import and import can be freed
1060 Frequency : rare, need acl's on inode.
1062 Description: client can't handle ost additional correctly
1063 Details : if ost was added after client connected to mds client can have
1064 hit lnet_try_match_md ... to big messages to wide striped files.
1065 in this case need teach client to handle config events about add
1066 lov target and update client max ea size at that event.
1068 Severity : enhancement
1070 Description: Changelogs
1071 Details : Changelogs are a lightweight mechanism to track filesystem
1072 metadata and namespace changes. The changelog is recorded
1073 permanently on the MDTs, and is periodically "consumed" / purged
1074 when records are no longer needed.
1076 Severity : enhancement
1078 Description: compact fld format with extents
1079 Details : Store range of seq rather than every seq in FLD. Seq
1080 controller update FLD rather than clients. In Case of CMD, mdt0
1081 has FLD, all other metadata server act as non persistent proxy
1082 for FLD queries and cache fld entries in fld cache.
1087 Description: don't skip ost target if they assigned to file
1088 Details : Drop slow OSCs if we can, but not for requested start idx.
1089 This means "if OSC is slow and it is not the requested
1090 start OST, then it can be skipped, otherwise skip it only
1091 if it is inactive/recovering/out-of-space.
1095 Description: more cleanup in mds_lov
1096 Details : not send LOV EA under replay, we can't know about they size at this
1097 time. Don't allow client connect to mds before any ost connected,
1098 for avoid problems with LOV EA size and returning EIO to client.
1100 Severity : enhancement
1102 Description: Interoperability at server side (Disk interoperability)
1104 Severity : enhancement
1106 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1108 Severity : enhancement
1110 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1112 Severity : enhancement
1114 Description: New client IO stack (CLIO).
1116 Severity : enhancement
1118 Description: Commit on sharing. Eliminate inter-client dependencies between
1119 uncommitted transactions by doing transaction commits.
1120 Thereby clients may recovery independently.
1123 Frequency : Create a symlink file with a very long name
1125 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1126 Details : If there is no extra space in the request for early cancels,
1127 ldlm_req_handles_avail() returns 0 instead of a negative value.
1129 Severity : enhancement
1131 Description: Add /proc entry for import status
1132 Details : The mdc, osc, and mgc import directories now have
1133 an import directory that contains useful import data for debugging
1134 connection problems.
1136 Severity : enhancement
1138 Description: Re-disable certain /proc logging
1139 Details : Enable and disable client's offset_stats, extents_stats and
1140 extents_stats_per_process stats logging on the fly.
1143 Frequency : Only on FC kernels 2.6.22+
1145 Description: oops in statahead
1146 Details : Do not drop reference count for the dentry from VFS when lookup,
1147 VFS will do that by itself.
1149 Severity : enhancement
1151 Description: Generic /proc file permissions
1152 Details : Set /Proc file permissions in a more generic way to enable non-
1153 root users operate on some /proc files.
1157 Description: Hitting mdc_commit_close() ASSERTION
1158 Details : Properly handle request reference release in
1159 ll_release_openhandle().
1163 Description: quota recovery deadlock during mds failover
1164 Details : This patch includes att18982, att18236, att18237 in bz14840.
1166 1. fix osts hang when mds does failover with quotaon
1167 2. prevent watchdog storm when osts threads wait for the
1172 Frequency : only patchless client
1173 Description: add workaround for race between add/remove dentry from hash
1175 Severity : enhancement
1177 Description: Allow OST glimpses to return PW locks
1181 Description: LBUG when llog conf file is full
1182 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1186 Description: Prevent import from entering FULL state when server in recovery
1190 Description: service mount cannot take device name with ":"
1191 Details : Only when device name contains ":/" will mount treat it as
1197 Description: replace ptlrpcd with the statahead thread to interpret the async
1198 statahead RPC callback
1202 Frequency : on recovery
1203 Description: I/O failures after umount during fail back
1204 Details : if client reconnected to restarted server we need join to recovery
1205 instead of find server handler is changed and process self
1206 eviction with cancel all locks.
1208 Severity : enhancement
1210 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1212 Severity : enhancement
1214 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1216 Severity : enhancement
1218 Description: Upcall on Lustre log has been dumped
1219 Details : Allow for a user mode script to be called once a Lustre log has
1220 been dumped. It passes the filename of the dumped log to the
1221 script, the location of the script can be specified via
1222 /proc/sys/lnet/debug_log_upcall.
1227 Description: avoid idr_remove called for id which is not allocated.
1228 Details : Move assigment s_dev for clustered nfs to end of initialization,
1229 to avoid problem with error handling.
1234 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1235 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1236 into CONN_USED_HASH and this prodice warning when put connection
1237 again in unused hash.
1240 Severity : enhancement
1242 Description: File striping can now be set to use an arbitrary pool of OSTs.
1244 Severity : enhancement
1246 Description: Export bytes_read/bytes_write count on OSC/OST.
1250 Description: Early reply size mismatch, MGC loses connection
1251 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1252 the connect flags are properly negotiated.
1257 Description: quotas are not honored with O_DIRECT
1258 Details : all writes with the flag O_DIRECT will use grants which leads to
1259 this problem. Now using OBD_BRW_SYNC to guard this.
1263 Description: add quota statistics
1264 Details : 1. sort out quota proc entries and proc code.
1265 2. add quota statistics
1267 Severity : enhancement
1269 Description: enable quota support for HEAD.
1273 Description: Properly propagate oinfo flags from lov to osc for statfs
1274 Details : restore missing copy oi_flags to lov requests.
1276 Severity : enhancement
1278 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1279 : l_getgroups(8), lst(8), routerstat(8)
1280 Details : included man pages for llobdstat(8), llstat(8),
1281 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1283 Severity : enhancement
1285 Description: configure's --enable-quota should check the
1286 : kernel .config for CONFIG_QUOTA
1287 Details : configure is terminated if --enable-quota is passed but
1288 : no quota support is in kernel
1292 Description: Remove portals compatibility
1293 Details : Remove portals compatibility, not interoperable with releases
1298 Description: Resolve device initialization race
1299 Details : Prevent proc handler from accessing devices added to the
1300 obd_devs array but yet be intialized.
1302 Severity : enhancement
1304 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1306 Severity : enhancement
1308 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1313 Description: Using wrong pointer in osc_brw_prep_request
1314 Details : Access to array[-1] can produce panic if kernel compiled with
1315 CONFIG_PAGE_ALLOC enabled
1319 Description: Client runs out of low memory
1320 Details : Consider only lowmem when counting initial number of llap pages
1324 Description: *optional* service tags registration
1325 Details : if the "service tags" package is installed on a Lustre node
1326 When the filesystem is mounted, a local-node service tag will
1327 be created. See http://inventory.sun.com/ for more information
1328 about the Service Tags asset management system.
1332 Description: Kernel BUG tries to release flock
1333 Details : Lustre does not destroy flock lock before last reference goes
1334 away. So always drop flock locks when client is evicted and
1335 perform unlock regardless of successfulness of speaking to MDS.
1339 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1343 Description: sanity test 65a fails if stripecount of -1 is set
1344 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1349 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1350 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1353 Severity : enhancement
1355 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1359 Description: do not process already freed flock
1360 Details : flock can possibly be freed by another thread before it reaches
1361 to ldlm_flock_completion_ast.
1365 Description: LBUG during stress test
1366 Details : Need properly lock accesses the flock deadlock detection list.
1370 Description: oops in page fault handler
1371 Details : kernel page fault handler can return two special 'pages' in error
1372 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1376 Description: timeout with invalidate import.
1377 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1378 should be handled by ptlrpcd. This produce long age waiting and
1379 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1381 Severity : enhancement
1383 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1387 Description: enable MGS and MDT services start separately
1388 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1389 a co-located MGS without starting the MGS, which is a complement
1390 to 'nosvc' mount option.
1394 Frequency : after recovery
1395 Description: precreate to many object's after del orphan.
1396 Details : del orphan st in oscc last_id == next_id and this triger growing
1397 count of precreated objects. Set flag LOW to skip increase count
1398 of precreated objects.
1402 Frequency : rare, on clear nid stats
1403 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1404 Details : when clean nid stats sometimes try destroy live entry,
1405 and this produce panic in free.
1409 Description: Stack overflow during MDS log replay
1410 ease stack pressure by using a thread dealing llog_process.
1414 Description: wait until IO finished before start new when do lock cancel.
1415 Details : VM protocol want old IO finished before start new, in this case
1416 need wait until PG_writeback is cleared until check dirty flag and
1417 call writepages in lock cancel callback.
1419 Severity : enhancement
1421 Description: using special macro for print time and cleanup in includes.
1425 Description: mds_mfd_close() ASSERTION(rc == 0)
1426 Details : In mds_mfd_close(), we need protect inode's writecount change
1427 within its orphan write semaphore to prevent possible races.
1431 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1435 Frequency : rare, on shutdown ost
1436 Description: don't hit live lock with umount ost.
1437 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1438 use shrink_dcache_sb instead.
1442 Description: don't panic with use echo client
1443 Details : echo client pass NULL as client nid pointer and this produce null
1444 pointer dereference.
1448 Description: fix build on ppc32
1449 Details : compile code with -m64 flag produce wrong object file for ppc32.
1453 Description: add message levels for liblustreapi
1457 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1458 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1459 will result in an -EAGAIN and in the exit call path we call
1460 alloc_rr() which will with increasing aggressiveness attempt to
1461 aquire precreated objects on the minimum number of required OSCs.
1465 Description: Use old size assignment to avoid deadlock
1466 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1467 the scheduling while holding a spinlock. We do not need locking
1468 for size in ll_update_inode() because size is only updated from
1469 the MDS for directories or files without objects, so there is no
1470 other place to do the update, and concurrent access to such inodes
1471 are protected by the inode lock.
1475 Description: resolve "_IOWR redefined" build error on SLES10
1479 Description: dump the memory debugging after all modules are unloaded to
1480 suppress false negative in conf_sanity test 39
1482 Severity : enhancement
1484 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1489 Description: fix SLES kernel versioning
1490 Details : the kernel version for our SLES 10 kernel did not include a "-"
1491 before the "smp" at the end. while this was not a problem in
1492 general, it did mean that software trying to use the kernel
1493 version to try to detect a vendor specific kernel would fail.
1494 this was most evident by the OFED build scripts.
1498 Description: Don't update lov_desc members until making sure they are valid
1499 Details : When updating lov_desc members via proc fs, need fix their
1500 validities before doing the real update.
1504 Description: don't put request into delay list while invalidate in flight.
1505 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1506 import in flight. this produce timeout for invalidate and sometimes
1507 can cause stale data.
1511 Frequency : on ppc only
1512 Description: not convert ost objects for directory because it's not exist.
1513 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1517 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1519 Severity : enhancement
1521 Description: Update to support 2.6.22.14 vanilla kernel.
1525 Frequency : rare, on recovery
1526 Description: read procfs can produce deadlock in some situation
1527 Details : Holding lprocfs lock which send rpc can produce block for destroy
1528 obd objects and this also block reconnect with -EALREADY. This
1529 isn't fix all lprocfs bugs - but make it rare.
1531 Severity : enhancement
1533 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1536 Frequency : frequent on X2 node
1538 Description: mdc_set_open_replay_data LBUG
1539 Details : Set replay data for requests that are eligible for replay.
1543 Description: lustre_mgs: operation 101 on unconnected MGS
1544 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1545 MGC, and late on MGC cannot successfully connect to MGS and a lot
1546 of the error messages complaining that MGS is not connected.
1550 Frequency : on network error
1551 Description: panic with double free request if network error
1552 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1553 but it's true only for synchronus enqueue, for async enqueue
1554 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1557 Severity : enhancement
1559 Description: client-side metadata stat-ahead during readdir(directory readahead)
1560 Details : perform client-side metadata stat-ahead when the client detects
1561 readdir and sequential stat of dir entries therein
1564 Frequency : on start mds
1566 Description: Implement get_info(last_id) in obdfilter.
1569 Frequency : occasional
1571 Description: Correctly check stale fid, not start epoch if ost not support SOM
1572 Details : open with flag O_CREATE need set old fid in op_fid3 because
1573 op_fid2 was overwritten with new generated fid, but mds can answer
1574 with one of these two fids and both is not stale. Setattr
1575 incorrectly started an epoch and assume will be called
1576 done_writing, but without SOM done_writing ever being called.
1579 Frequency : rare, depends on device drivers and load
1581 Description: MDS or OSS nodes crash due to stack overflow
1582 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1583 In some cases, in conjunction with device drivers that use a lot
1584 of stack the MDS (or possibly OSS) service threads could overflow
1585 the stack. One change which was identified to consume additional
1586 stack has been reworked to avoid the extra stack usage.
1589 Frequency : occasional
1591 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1592 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1593 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1594 oscc_has_objects and see OSC has no objests and call
1595 oscc_internal_create to resend create request.
1597 Severity : enhancement
1599 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1601 Severity : enhancement
1603 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1606 Frequency : very rare
1608 Description: Fix replay if there is an un-replied request and open
1609 Details : In some cases, older replay request will revert the
1610 mcd->mcd_last_xid on MDS which is used to record the client's
1611 latest sent request.
1613 Severity : enhancement
1615 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1617 Severity : enhancement
1619 Description: Add rhel5 support to HEAD.
1621 Serverity : enhancement
1623 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1628 Description: Don't allow skipping OSTs if index has been specified.
1629 Details : Don't allow skipping OSTs if index has been specified, make
1630 locking in internal create lots better.
1634 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1635 Details : access to bitfield in structure is always rounded to long
1636 and this produce problem with not atomic change any bit.
1640 Description: Lustre make rpms failed.
1641 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1642 builds Lustre rpms from tarball.
1645 Frequency : rare on shutdown ost
1647 Description: If llog cancel was not send before clean_exports phase, this can
1648 produce deadlock in llog code.
1649 Details : If llog thread has last reference to obd and call class_import_put
1650 this produce deadlock because llog_cleanup_commit_master wait when
1651 last llog_commit_thread exited, but this never success because was
1652 called from llog_commit_thread.
1656 Description: allow userland application know is lost one of stripes.
1657 Details : fill lvb_blocks with error code on ost and return it to
1658 application if error flag found.
1662 Description: NULL lov_tgts causing MDS oops
1663 Details : more safe checks for NULL lov_tgts for avoid oops.
1665 Severity : enhancement
1667 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1671 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1672 Details : If an OST is down the MDS will hang indefinitely in
1673 obd_statfs_rqset() waiting for the statfs data. While for
1674 MDS QOS usage of statfs, it should not stuck in waiting.
1676 Severity : enhancement
1678 Description: remote_acl support
1679 Details : Support ACL-based permission check for remote user.
1680 Support setfacl/getfacl for remote user with the utils
1681 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1682 the system "{s,g}etfacl" utils.
1684 Severity : enhancement
1686 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1688 Severity : enhancement
1690 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1694 Description: make mgs_setparam() handle fsname containing dash
1695 Details : fsname containing a dash does not work with lctl conf_param
1697 Severity : enhancement
1699 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1701 Severity : enhancement
1703 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1707 Frequency : rare, at shutdown
1708 Description: access already free / zero obd_namespace.
1709 Details : if client_disconnect_export was called without force flag set,
1710 and exist connect request in flight, this can produce access to
1711 NULL pointer (or already free pointer) when connect_interpret
1712 store ocd flags in obd_namespace.
1716 Frequency : only at startup
1717 Description: not alloc memory with spinlock held.
1718 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1719 if any spinlock held.
1721 Severity : enhancement
1723 Description: make lustre randomly fail allocating memory
1724 Details : Make lustre randomly failed allocating memory for testing purpose.
1726 Severity : enhancement
1728 Description: lost problems with lov objid file
1729 Details : Fixes some scability and access to not inited memory problems
1730 in work with lov objdid file.
1735 Description: lfs find does not continue on file error
1736 Details : Continue other files processing when a file/dir is absent.
1740 Description: Inconsistent usage of lustre_pack_reply()
1741 Details : Standardize the usage of lustre_pack_reply() such that it
1742 always generate a CERROR on failure.
1745 Frequency : occasional
1747 Description: MDS hang or stay in waiting lock
1748 Details : If client receive lock with CBPENDING flag ldlm need send lock
1749 cancel as separate rpc, to avoid situation when cancel request
1750 can't processed due all i/o threads stay in wait lock.
1754 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1758 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1762 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1766 Description: Update to RHEL4 latest kernel.
1768 Severity : enhancement
1770 Description: Build SLES10 patchless client fails
1771 Details : The configure was broken by run ./configure with
1772 --with-linux-obj=.... argument for patchless client. When the
1773 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1774 can't search header adequately. Use absolute path such as
1775 -I($LINUX)/include instead.
1779 Description: interrupt oig_wait produce painc on resend.
1780 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1781 private set, and this produce situation when rq_ptlrpcd_data not
1782 copyed to new allocated request and triggered LBUG on assert
1783 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1784 ptlrpcd set if request is changed and can be safety changed to use
1789 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1790 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1791 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1792 these macros and replace them with their difinitions instead.
1796 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1797 Details : Update which_patch & target file for SLES10 latest kernel.
1800 Description: Remove client patches from SLES 10 kernel.
1801 Details : This causes SLES 10 clients to behave as patchless clients
1802 even on a Lustre-patched (server) kernel.
1804 Severity : enhancement
1806 Description: self-adjustable client's lru lists
1807 Details : use adaptive algorithm for managing client cached locks lru
1808 lists according to current server load, other client's work
1809 pattern, memory activities, etc. Both, server and client
1810 side namespaces provide number of proc tunables for controlling
1813 Severity : enhancement
1815 Description: light-weight GSS support
1816 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1817 and reduce performance overhead.
1819 Severity : enhancement
1821 Description: Linux keyring support
1822 Details : Support using service of Linux keyring for Lustre GSS internal
1823 context refresh/cache mechanism.
1827 Description: Fix errors in lfs documentation
1828 Details : Fixes man pages
1832 Description: don't use GFP_* in generic Lustre code.
1833 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1837 Description: obdclass is limited by single OBD_ALLOC(idarray)
1838 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1842 Description: warnings with build patchless client with vanila 2.6.19 and up
1843 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1844 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1848 Frequency : Only for SLES
1849 Description: sanity_quota fail test_1
1850 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1851 file, which makes TSTID[2] inunique.
1855 Frequency : Only for SLES9
1856 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1857 Details : Update target/ChangeLog/which_patch .
1861 Frequency : Only for test_10 in sanity-quota.sh
1862 Description: a bug in quota test code
1863 Details : checking a test flag in a wrong place
1867 Frequency : Only for test_13 in sanity-quota.sh
1868 Description: a bug in quota test script
1869 Details : shouldn't check overfull allocated quota
1873 Description: jbd statistics
1874 Details : Port older jbd statistics patch for sles10
1876 Severity : enhancement
1878 Description: Add printing inode info into message about error in writepage.
1883 Description: reply_lock_interpret crash due to race with it and lock cancel.
1884 Details : Do not replay locks that are being cancelled. Do not reference
1885 locks by their address during replay, just by their handle.
1889 Frequency : When flocks are used.
1890 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1891 Details : Flock locks might destroy just granted lock if it could be merged
1892 with another existing flock, this is done in completion handler,
1893 so teach ldlm_cli_enquque_fini that this is a valid case for
1899 Description: Oops in read and write path when failing to allocate lock.
1900 Details : Check if lock allocation failed and return error back.
1904 Description: lstripe command fails for valid OST index
1905 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1906 instead of lov->desc.ld_active_tgt_count.
1910 Description: sanity.sh failed test 103
1911 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1916 Description: df doesn't work properly if diskfs blocksize != 4K
1917 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1921 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1922 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1924 Severity : enhancement
1926 Description: Adaptive timeouts
1927 Details : RPC timeouts adapt to changing server load and network
1928 conditions to reduce resend attempts and improve recovery time.
1932 Description: llapi_file_create() does not allow some changes
1933 Details : add llapi_file_open() that allows specifying the mode and
1934 open flags, and also returns an open file handle.
1938 Description: merge and cleanup kernel patches.
1939 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1943 Description: Add journal checksum support.(Kernel part)
1944 Details : The journal checksum feature adds two new flags i.e
1945 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1946 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1947 indicates that the commit block contains the checksum for
1948 the blocks described by the descriptor blocks. Now commit
1949 record can be sent to disk without waiting for descriptor
1950 blocks to be written to disk. This behavior is controlled
1951 using JBD2_FEATURE_ASYNC_COMMIT flag.
1955 Description: OSS needs mutliple precreate threads
1956 Details : Add ability to start more than one create thread per OSS.
1960 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1961 Details : execute lfs setstripe on client
1965 Description: mds_obd_create error creating tmp object
1966 Details : When the user sets quota on root, llog will be affected and can't
1967 create files and write files.
1970 Frequency : Always on ia64 patchless client, and possibly others.
1972 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1973 Details : This allows the patchless client to be loaded on architectures
1974 without this export.
1978 Description: RedHat Update kernel for RHEL5
1979 Details : Add the kernel config file for RHEL5.
1983 Description: RedHat Update kernel for RHEL5
1984 Details : Modify the kernel config file more closer RHEL5.
1988 Description: Build failure against Centos5 (RHEL5)
1989 Details : Define PAGE_SIZE when it isn't present.
1993 Description: test_7 on sanity-quota.sh can't be used on separate machines
1994 Details : add facet to handle it
1998 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
1999 Details : with NFS, the anon dentry's parent was set to itself in
2000 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
2001 corresponding dentry other than use rec->ur_name.
2003 Severity : enhancement
2005 Description: lfs setstripe enhancement
2006 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2010 Description: enable data checksumming by default
2011 Details : enable checksum by default, allow --disable-checksum
2012 configure option and "-o nochecksum" mount option. Checksums
2013 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2017 Description: lustre support for RHEL5
2018 Details : Add support for RHEL5.
2022 Description: Client eviction due to failover config
2023 Details : after a connection loss, the lustre client should attempt to
2024 reconnect to the last active server first before trying the
2025 other potential connections.
2029 Description: when mds and osts use different quota unit(32bit and 64bit),
2030 quota will be released repeatly.
2031 Details : void sending multiple quota reqs to mds, which will keep the
2032 status between the reqs.
2036 Description: osts not allocated evenly to files
2037 Details : change the condition to increase offset_idx
2040 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2042 Description: Data corruption for OSTs that are formatted larger than 2TB
2044 Details : When generating the bio request for lustre file writes the
2045 sector number would overflow a temporary variable before being
2046 used for the IO. The data reads correctly from Lustre (which
2047 will overflow in a similar manner) but other file data or
2048 filesystem metadata may be corrupted in some cases.
2052 Description: Tune the kernel for good SCSI performance.
2053 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2054 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2059 Description: rewrite ext2-derived code in obdclass/uuid.c
2060 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2061 from scratch preserving functionality.
2065 Description: "lfs find -obd UUID" prints directories
2066 Details : "lfs find -obd UUID" will return all directory names instead
2067 of just file names. It is incorrect because the directories
2068 do not reside on the OSTs.
2072 Description: use i_size_read and i_size_write in 2.6 port
2073 Details : replace inode->i_size access with i_size_read/write()
2076 Frequency : when removing large files
2078 Description: scheduling issue during removal of large Lustre files
2079 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2080 It causes scheduling issues when removing large files (17TB in the
2084 Frequency : only with liblustre clients on XT3
2086 Description: evictions taking too long
2087 Details : allow llrd to evict clients directly on OSTs
2090 Frequency : only on ppc
2092 Description: /proc/fs/lustre/devices broken on ppc
2093 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2094 We should make sure the type of 'index' is loff_t and then cast
2095 explicitly as needed below. Do not assign an explicitly cast
2099 Frequency : only for rhel5
2101 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2102 Details : Modify the target file & which_kernel.
2104 Severity : enhancement
2106 Description: omit set fsid for export NFS
2107 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2108 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2112 Frequency : Always, for kernels after 2.6.16
2113 Description: Fix warning idr_remove called for id=.. which is not allocated.
2114 Details : Last kernels save old s_dev before kill super and not allow
2115 to restore from callback - restore it before call kill_anon_super.
2119 Description: buffer overruns could theoretically occur
2120 Details : llapi_semantic_traverse() modifies the "path" argument by
2121 appending values to the end of the origin string, and a
2122 overrun may occur. Adding buffer overrun check in liblustreapi.
2126 Description: Fix error on 'ls .' at the top of the Lustre mount.
2127 Details : Don't revalidate dentry if it is a root dentry.
2131 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2132 Details : Modify vm-tunables-rhel4.patch.
2136 Description: Kernel config for 2.6.18-vanilla.
2137 Details : Modify targets/2.6-vanilla.target.in.
2138 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2139 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2140 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2141 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2145 Description: improve handling recoverable errors
2146 Details : if request processig with error which can be recoverable on server
2147 request should be resend, otherwise page released from cache and
2152 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2153 Details : Modify target file & which_patch.
2154 A flaw was found in the IA32 system call emulation provided
2155 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2156 value could be stored in the %RAX register, which could trigger an
2157 out-of-bounds system call table access. An untrusted local user
2158 could exploit this flaw to run code in the kernel
2159 (ie a root privilege escalation). (CVE-2007-4573).
2163 Description: O_DIRECT bypasses client statistics.
2164 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2165 read_ahead_stats were updated. copied the stats section from
2166 osc_send_oap_rpc() into async_internal().
2170 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2174 Description: change order of libsysio includes
2175 Details : '#include sysio.h' should always come before '#include xtio.h'
2179 Description: handle "serious error: objid * already exists" more gracefully
2180 Details : If LAST_ID value on disk is smaller than the objects existing in
2181 the O/0/d* directories, it indicates disk corruption and causes an
2182 LBUG(). If the object is 0-length, then we should use the existing
2183 object. This will help to avoid a full fsck in most cases.
2185 Severity : enhancement
2187 Description: adapt the lustre_config script to support the upgrade case
2188 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2189 server targets to 1.6 in parallel.
2193 Description: To avoid grant space > avaible space when the disk is almost
2194 full. Without this patch you might see the error "grant XXXX >
2195 available" or some LBUG about grant, when the disk is almost
2197 Details : In filter_check_grant, for non_grant cache write, we should
2198 check the left space by if (*left > ungranted + bytes), instead
2199 of (*left > ungranted), because only we are sure the left space
2200 is enough for another "bytes", then the ungrant space should be
2201 increase. In client, we should update cl_avail_grant only there
2202 is OBD_MD_FLGRANT in the reply.
2206 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2207 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2208 described in CVE-2007-4573. This problem could allow untrusted
2209 local users to gain root access.
2212 Frequency : when using O_DIRECT and quotas
2214 Description: Incorrect file ownership on O_DIRECT output files
2215 Details : block usage reported by 'lfs quota' does not take into account
2216 files that have been written with O_DIRECT.
2221 Description: touch file failed when fs is not full
2222 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2223 otherwise we can get ENOSP while fs is not full.
2227 Description: parallel lock callbacks
2228 Details : Instead of sending blocking and completion callbacks as separated
2229 requests, adding them to a set and sending in parallel.
2232 Frequency : only for Cray XT3
2233 Bugzilla : 12829/13455
2234 Description: Changing primary group doesn't change the group lustre assigns to
2236 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2237 overridden with the primary group provided by the group upcall,
2238 whereas the supplied fsgid can be trusted if it is in the list of
2239 supplementary groups returned by the group upcall.
2241 Severity : enhancement
2243 Description: Allow masking D_WARNING, D_ERROR messages from console
2244 Details : Console messages can now be disabled via lnet.printk.
2248 Description: User code with malformed file open parameter crashes client node
2249 Details : Before packing join_file req, all the related reference should be
2250 checked carefully in case some malformed flags cause fake
2251 join_file req on client.
2255 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2256 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2257 mode is equal to the granted mode. However, it should also check
2258 that LDLM_FL_CP_REQD is not set.
2262 Description: Heavy nfs access might result in deadlocks
2263 Details : After ELC code landed, it is now improper to enqueue any mds
2264 locks under och_sem, because enqueue might want to decide to
2265 cancel open locks for same inode we are holding och_sem for.
2269 Description: Client eviction while running blogbench
2270 Details : A lot of unlink operations with concurrent I/O can lead to a
2271 deadlock causing evictions. To address the problem, the number of
2272 oustanding OST_DESTROY requests is now throttled to
2273 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2274 callbacks are processed in priority.
2278 Description: enable ACLs on MDS by default
2279 Details : ACLs must be enabled on MDS by default.
2282 Frequency : PPC/PPC64 only
2284 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2285 Details : fix duplicated definitions between asm-ppc64/types.h and
2286 lustre_types.h on PPC.
2289 Frequency : PPC/PPC64 only
2291 Description: asm-ppc/segment.h does not exist
2292 Details : fix compile issue on PPC.
2296 Description: better handle error messages in extents code
2299 Frequency : RHEL4 only
2301 Description: mkfs is very slow on IA64/RHEL4
2302 Details : A performance regression has been discovered in the MPT Fusion
2303 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2304 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2305 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2307 Severity : enhancement
2309 Description: SNMP support enhancement
2310 Details : Adding total number of sampled request for an MDS node in snmp
2313 Severity : enhancement
2315 Description: Optimize ldlm waiting list processing for PR extent locks
2316 Details : When processing waiting list for read extent lock and meeting read
2317 lock that is same or wider to it that is not contended, skip
2318 processing rest of the list and immediatelly return current
2319 status of conflictness, since we are guaranteed there are no
2320 conflicting locks in the rest of the list.
2324 Description: Time out and refuse to reconnect
2325 Details : When the failover node is the primary node, it is possible
2326 to have two identical connections in imp_conn_list. We must
2327 compare not conn's pointers but NIDs, otherwise we can defeat
2328 connection throttling.
2332 Description: port llog fixes from b1_6 into HEAD
2333 Details : Port llog reference couting and some llog cleanups from b1_6
2334 (bug 10800) into HEAD, for protect from panic and access to already
2335 free llog structures.
2339 Description: Detect stride IO mode in read-ahead
2340 Details : When a client does stride read, read-ahead should detect that and
2341 read-ahead pages according to the detected stride pattern.
2345 Description: data checksumming impacts single node performance
2346 Details : add support for several checksum algorithm. Currently, only CRC32
2347 and Adler-32 are supported. The checksum type can be changed on
2348 the fly via /proc/fs/lustre/osc/*/checksum_type.
2352 Description: use adler32 for page checksums
2353 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2358 Description: build for x2 fails
2359 Details : fix compile issue on Cray systems.
2363 Description: Properly match for duplicate locks
2364 Details : Due to different lock order from skiplists code, we need to
2365 traverse entire list for now
2368 Frequency : only on PPC/SLES10
2370 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2371 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2372 be defined. Add a hack in mkfs_lustre.c to work around this compile
2377 Description: LASSERT on MDS when client holding flock lock dies
2378 Details : ldlm pool logic depends on number of granted locks equal to
2379 number of released locks which is not true for flock locks, so
2380 just exclude such locks from consideration.
2384 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2385 Details : Use fsfilt_sync() for both the whole filesystem sync and
2386 individual file sync to eliminate dangerous inode locking
2387 with I_LOCK that can lead to a deadlock.
2391 Description: performance in 1.6.3
2392 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2393 sure that 1MB requests are not fragmented by the block layer.
2395 Severity : enhancement
2397 Description: organize the server-side client stats on per-nid basis
2398 Details : Change the structure of stats under obdfilter and mds to
2406 The "uuid"s file would list the uuids of _active_ exports.
2407 And the clear entry is to clear all stats and stale nids.
2409 Severity : enhancement
2411 Description: eliminate client locks in face of contention
2412 Details : file contention detection and lockless i/o implementation
2413 for contended files.
2417 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2420 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2422 Description: MDS may lose file striping (and hence file data) in some cases
2423 Details : If there are additional extended attributes stored on the MDS,
2424 in particular ACLs, SELinux, or user attributes (if user_xattr
2425 is specified for the client mount options) then there is a risk
2426 of attribute loss. Additionally, the Lustre file striping
2427 needs to be larger than default (e.g. striped over all OSTs),
2428 and an additional attribute must be stored initially in the
2429 inode and then increase in size enough to be moved to the
2430 external attribute block (e.g. ACL growing in size) for file
2435 Description: skiplist implementation simplification
2436 Details : skiplists are used to group compatible locks on granted list
2437 that was implemented as tracking first and last lock of each
2438 lock group the patch changes that to using doubly linked lists
2442 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2443 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2444 because LASSERT on both the data supplied by a client, and the
2445 data on disk is dangerous and incorrect.
2447 Severity : enhancement
2449 Description: Slow truncate/writes to huge files at high offsets.
2450 Details : Directly associate cached pages to lock that protect those pages,
2451 this allows us to quickly find what pages to write and remove
2452 once lock callback is received.
2456 Description: more ldlm soft lockups
2457 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2458 starve other threads from the resource lock for a long time in
2459 case of long waiting queue, so change the debug level from
2460 D_OTHER to the less frequently used D_INFO.
2462 Severity : enhancement
2464 Description: add -gid, -group, -uid, -user options to lfs find
2468 Description: Hung threads in invalidate_inode_pages2_range
2469 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2470 once one is completed. As a result, some RPCs are stuck in the
2471 queue and are never sent.
2475 Description: filter threads hungs on waiting journal commit
2476 Details : Cleanup filter group llog code, then only filter group llog will
2477 be only created in the MDS/OST syncing process.
2481 Description: Procfs and llog threads access destoryed import sometimes.
2482 Details : Sync the import destoryed process with procfs and llog threads by
2483 the import refcount and semaphore.
2485 Severity : enhancement
2487 Description: openlock cache of b1_6 port to HEAD
2492 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2493 Details : If insertion of an extent fails, then discard the inode
2494 preallocation and free data blocks else it can lead to duplicate
2499 Description: don't always update ctime in ext3_xattr_set_handle()
2500 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2501 In some cases the ctime should not be updated, for example for
2502 2.0->1.8 compatibility it is necessary to delete an xattr and it
2503 should not update the ctime.
2507 Bugzilla : 15713/16362
2508 Description: Assertion in iopen_connect_dentry in 1.6.3
2509 Details : looking up an inode via iopen with the wrong generation number can
2510 populate the dcache with a disconneced dentry while the inode
2511 number is in the process of being reallocated. This causes an
2512 assertion failure in iopen since the inode's dentry list contains
2513 both a connected and disconnected dentry.
2517 Description: assertion failure in ldlm_handle2lock()
2518 Details : fix a race between class_handle_unhash() and class_handle2object()
2519 introduced in lustre 1.6.5 by bug 13622.
2524 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2525 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2530 Description: oops in sd_iostats_seq_show()
2531 Details : unloading/reloading the scsi low level driver triggers a kernel
2532 bug when trying to access the sd iostat file.
2537 Description: Kernel panics during QLogic driver reload
2538 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2539 patch, causing memory corruption.
2544 Description: journal_dev option does not work in b1_6
2545 Details : pass mount option during pre-mount.
2547 Severity : enhancement
2549 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2550 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2551 extent information of a file. It can be used to map logical blocks
2552 in a file to physical blocks in the block device.
2556 Description: LDLM soft lockups - improvement
2557 Details : It is be possible to send the lock handle along with each read
2558 or write request because the client is already doing a lock match
2559 itself so there isn't any reason the OST should have to re-do that
2563 Frequency : only on Cray X2
2565 Description: X2 build failures
2566 Details : fix build failures on Cray X2.
2570 Description: xid & resent requests
2571 Details : Initialize RPC XID from clock at startup (randomly if clock is
2574 Severity : enhancement
2576 Description: Add lustre_start utility to start or stop multiple Lustre servers
2581 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2582 Details : In case of memory pressure, list_del() can be called twice on
2583 req->rq_history_list, causing a kernel oops.
2587 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2588 Details : fix stack overflow in the distributed lock manager by defering
2589 export eviction after a failed AST to the elt thread instead of
2590 handling it in the dlm interpret routine.
2594 Description: Convert some comments to new format.
2595 Details : Update documenting comments to match doxygen conventions.
2599 Description: Grammar fixes.
2600 Details : A couple of trivial spelling fixes.
2604 Description: OSD_COUNTERS-mandatory
2605 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2606 to simplify the code.
2610 Description: simplify cmm_device freeing logic.
2611 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2615 Description: Add lockdep support to dt_object_operations locking interface.
2616 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2617 parameter indicating lock ordering. Update mdd code to use new
2622 Description: Introduce failloc constants for lockless IO tests.
2623 Details : Add two new failloc constants to test lockless IO. Only one of
2624 them in implemented---another is checked in yet to be landed
2629 Description: Add lockdep support for inode mutex.
2630 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2631 in the situations where Lustre has to lock more than one inode
2636 Description: Add optional invariants checking support.
2637 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2638 configure switch. This macro is to be used for consistency and
2639 sanity checks that are too expensive to be left in `production'
2644 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2645 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2650 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2651 Details : Use spin_lock_nested() in (the only) situation where more than
2652 one ldlm_lock is locked simultaneously. Also, fix possible
2653 dead-lock in ldlm_lock_change_resource() by enforcing particular
2658 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2659 Details : Instead of specifying each ldlm_lock call-back through separate
2660 parameter, wrap them into struct ldlm_callback_suite.
2664 Description: Kill join_lru obd method and its callers.
2665 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2666 in memory---a requirement implemented through ->o_join_lru() obd
2667 method in HEAD. Remove this method and its users.
2671 Description: Add asynchronous ldlm ENQUEUE completion handler.
2672 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2673 case that stock ldlm_completion_ast() cannot handle as it waits
2674 until lock is granted. Introduce new ldlm_completion_ast_async()
2675 for this. Also comment ldlm_completion_ast().
2679 Description: ldlm_error <-> errno conversion.
2680 Details : Add functions to map (rather arbitrary) between LDLM error codes
2681 and standard errno values. CLIO needs this to prevent LDLM specific
2682 constants from escaping ldlm and osc.
2686 Description: Kill unused ldlm_handle2lock_ns() function.
2687 Details : Kill unused ldlm_handle2lock_ns() function.
2691 Description: Add lu_ref support to ldlm_lock
2692 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2693 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2694 and ldlm_resource. LDLM interface has to be changed, because code that
2695 releases a reference on a lock, has to "know" what reference this is.
2696 In the most frequent case
2698 lock = ldlm_handle2lock(handle);
2700 LDLM_LOCK_PUT(lock);
2702 no changes are required. When any other reference (received _not_ from
2703 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2704 instead of LDLM_LOCK_PUT().
2706 Arguably, changes are pervasive, and interface requires some discipline
2707 for proper use. On the other hand, it was very instrumental in finding
2708 a few leaked lock references.
2712 Description: Add ldlm_lock_addref_try().
2713 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2714 attempts to addref a lock that might be being canceled
2719 Description: Add ldlm_weigh_callback().
2720 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2721 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2722 hard-coded `number of pages' logic.
2726 Description: Add lockdep annotations to llog code.
2727 Details : Use appropriately tagged _nested() locking calls in the places
2728 where llog takes more than one ->lgh_lock lock.
2732 Description: Add loi_kms_set().
2733 Details : Wrap kms updates into a helper function.
2737 Description: Constify instances of struct lsm_operations.
2738 Details : Constify instances of struct lsm_operations.
2742 Description: lu_conf support.
2743 Details : On a server, a file system object is uniquely identified
2744 by a fid, which is sufficient to locate and load all object
2745 state (inode). On a client, on the other hand, more data are
2746 necessary instantiate an object. Change lu_object_find() and
2747 friends to take additional `lu_conf' argument describing object.
2748 Typically this includes layout information.
2752 Description: lu_context fixes.
2753 Details : Introduce new lu_context functions that are needed on the client
2754 side, where some system threads (ptlrpcd) are shared by multiple
2755 modules, and so cannot be stopped during module shutdown.
2759 Description: Add start and stop methods to lu_device_type_operations.
2760 Details : Introduce two new methods in lu_device_type_operations, that are
2761 invoked when first instance of a given type is created and last one
2762 is destroyed respectively. This is need by CLIO.
2766 Description: Add lu_ref support to struct lu_device.
2767 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2768 track leaked references.
2772 Description: Introduce lu_kmem_descr.
2773 Details : lu_kmem_descr and its companion interface allow to create
2774 and destroy a number of kmem caches at once.
2778 Description: Fix lu_object finalization race.
2779 Details : Fix a race between lu_object_find() finding an object and its
2780 concurrent finalization. This race is (most likely) not possible
2781 on the server, but might happen on the client.
2785 Description: Introduce lu_ref interface.
2786 Details : lu_ref is a debugging module allowing to track references to
2787 a given object. It is quite cpu expensive, and has to be
2788 explicitly enabled with --enable-lu_ref. See usage description
2793 Description: Factor lu_site procfs stats into a separate function.
2794 Details : Separate lu_site stats printing code into a separate function
2795 that can be reused on a client.
2799 Description: Constify instances of struct {lu,dt,md}_device_operations.
2800 Details : Constify instances of struct {lu,dt,md}_device_operations.
2804 Description: Introduce struct md_site and move meta-data specific parts of
2805 struct lu_site here.
2806 Details : Move md-specific fields out of struct lu_site into special struct
2807 md_site, so that lu_site can be used on a client.
2811 Description: Kill mdd_lov_destroy().
2812 Details : Remove unused mdd code.
2816 Description: Add st_block checking to multistat.c.
2817 Details : Add st_block checking to multistat.c.
2821 Description: Add lu_ref support to struct obd_device.
2822 Details : Add lu_ref tracking to obd_device.
2826 Description: Kill obd_set_fail_loc().
2827 Details : Remove unused code.
2831 Description: Add special type for ptlrpc_request interpret functions.
2832 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2833 there. Actual usage will be in CLIO.
2837 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2838 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2839 doesn't work with lockdep.
2843 Description: Add rwv.c test program.
2844 Details : New testing program exercising readv(2) and writev(2) (Qian).
2848 Description: Add sendfile.c test program.
2849 Details : New testing program exercising sendfile(2) (Jay).
2853 Description: Ratelimit a message that can be very frequent.
2854 Details : Ratelimit a memory allocation failure message that can
2859 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2860 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2864 Description: Liblustre build fixes.
2865 Details : Liblustre build fixes.
2869 Description: libcfs: add cfs_{need,cond}_resched() interface.
2870 Details : libcfs: add cfs_{need,cond}_resched() definition and
2871 implementations for Linux, NT, and liblustre.
2873 Severity : enhancement
2875 Description: More exported tunables for mballoc
2876 Details : Add support for tunable preallocation window and new tunables for
2877 large/small requests
2881 Description: Detect corruption of block bitmap and checking for preallocations
2882 Details : Checks validity of on-disk block bitmap. Also it does better
2883 checking of number of applied preallocations. When corruption is
2884 found, it turns filesystem readonly to prevent further corruptions.
2888 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2889 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2890 window to 0. If it does hit cache miss, and read-pattern is still
2891 stride-io mode, does not reset the stride window, but also does not
2892 increase the stride window length in this case.
2896 Frequency : only for big-endian servers
2897 Description: Check if system is big-endian while mounting fs with extents feature
2898 Details : Mounting a filesystem with extents feature will fail on big-endian
2899 systems since ext3-based ldiskfs is not supported on big-endian
2900 systems. This can be over-riden with "bigendian_extents" mount option.
2902 Severity : enhancement
2904 Description: The root squash functionality
2905 Details : A security feature, which is to prevent users from being able
2906 to mount lustre on their desktop, run as root, and delete
2907 all of the files in the filesystem. The goal is accomplished by
2908 remapping user id (UID) and group id (GID) of the root user to
2909 a UID and GID specified by the system administartor via Lustre
2910 configuration management server (MGS). The functionality also
2911 allows to specify sets of clients for which the remapping does
2916 Description: Excessive recovery window
2917 Details : With AT enabled, the recovery window can be excessively long (6000+
2918 seconds). To address this problem, we no longer use
2919 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2920 timeout no longer depends on the service time, it is set to
2921 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2922 time via pb_service_time.
2926 Description: Watchdog triggered on MDS failover
2927 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2928 the OSTs know that the MDS "UUID" can be reused for the same export
2929 from a different NID, so we do not need to wait for the export to be
2933 Frequency : rare, only if using MMP with Linux RAID
2935 Description: MMP doesn't work with Linux RAID
2936 Details : While using HA for Lustre servers with Linux RAID, it is possible
2937 that MMP will not detect multiple mounts. To make this work we
2938 need to unplug the device queue in RAID when the MMP block is being
2939 written. Also while reading the MMP block, we should read it from
2940 disk and not the cached one.
2942 Severity : enhancement
2944 Description: open file using fid
2945 Details : A file can be opened using just its fid, like
2946 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2949 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2952 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2953 Details : add proper locking for creation of jbd_4k slab cache
2957 Description: MMP check in ext3_remount() fails without displaying any error
2958 Details : When multiple mount protection fails during remount, proper error
2961 Severity : enhancement
2963 Description: Allow stripe size to be up to 4G-64k
2964 Details : Fix math logic to allow large stripe sizes.
2968 Description: add check for >8TB ldiskfs filesystems
2969 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2970 Don't allow >8TB ldiskfs filesystems to be mounted without
2971 force_over_8tb mount option
2976 Descriptoin: OSS complains "too many blocks" and crashes
2977 Details : In filter_commitrw_write():
2978 1. lquota_chkquota();
2979 2. obdo_from_inode();
2980 3. lquota_pending_commit();
2981 "2." has changed uid and gid in this case, then caused
2982 lquota_chkquota() and lquota_pending_commit() to use
2983 different uid and gid. That is the root of the bug.
2987 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2988 Details : Detect and print out the 'stripe count = -1' case properly.
2992 Description: Out or order replies might be lost on replay
2993 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2994 request with tid smaller than one currently being added, add it
2995 to the start, not end of the list.
2997 --------------------------------------------------------------------------------
2999 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
3001 * Support for kernels:
3002 2.6.5-7.283 (SLES 9),
3003 2.6.9-55.EL (RHEL 4),
3004 2.6.16.46-0.14 (SLES 10),
3005 2.6.18.8 vanilla (kernel.org)
3006 * Client support for unpatched kernels:
3007 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3008 2.6.16 - 2.6.22 vanilla (kernel.org)
3009 * Due to recently discovered recovery problems, we do not recommend
3010 using patchless RHEL 4 clients with this or any earlier release.
3011 * Recommended e2fsprogs version: 1.39.cfs8
3012 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3013 * Starting with this release, the ldiskfs backing filesystem required
3014 by Lustre is now in its own package, lustre-ldiskfs. This package
3015 should be installed. It is versioned separately from Lustre and
3016 may be released separately in future.
3020 Description: block reactivating mgc import until all deactivates complete
3021 Details : Fix race when failing back MDT/MGS to itself (testing)
3024 Frequency : at statup only
3026 Description: mds_lov_synchronize race leads to various problems
3027 Details : simultaneous MDT->OST connections at startup can cause the
3028 sync to abort, leaving the OSC in a bad state.
3030 Severity : enhancement
3032 Description: add optional extra BUILD_VERSION info
3033 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3034 to override the lustre version.
3037 Frequency : 2.6.18 servers only
3039 Description: ll_kern_mount() doesn't release the module reference
3040 Details : The ldiskfs module reference count never drops down to 0
3041 because ll_kern_mount() doesn't release the module reference.
3046 Description: server LBUG when using old ost_num_threads parameter
3047 Details : Accept the old ost_num_threads parameter but warn that it
3048 is deprecated, and fix an off-by-one error that caused an LBUG.
3053 Description: Transient SCSI error results in persistent IO issue
3054 Details : iobuf->dr_error is not reinitialized to 0 between two
3058 Frequency : sometimes when underlying device returns I/O errors
3060 Description: OSTs not going read-only during write failures
3061 Details : OSTs are not remounted read-only when the journal commit threads
3062 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3063 instead of the ext3 wrappers.
3067 Description: poor connect scaling with increasing client count
3068 Details : Don't run filter_grant_sanity_check for more than 100 exports
3069 to improve scaling for large numbers of clients.
3072 Frequency : SLES10 only
3074 Description: sanity-quota.sh quotacheck failed: rc = -22
3075 Details : Quotas cannot be enabled on SLES10.
3078 Frequency : liblustre clients only
3080 Description: getdirentries does not give error when run on compute nodes
3081 Details : getdirentries does not fail when the size specified as an argument
3082 is too small to contain at least one entry
3084 Severity : enhancement
3086 Description: Add LNET router traceability for debug purposes
3087 Details : If a checksum failure occurs with a router as part of the
3088 IO path, the NID of the last router that forwarded the bulk data
3089 is printed so it can be identified.
3094 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3095 Details : Due to a race condition, liblustre clients were occasionally
3096 evicted incorrectly.
3098 Severity : enhancement
3100 Description: lfs setstripe use optional parameters instead of postional
3103 Severity : enhancement
3105 Description: Nanosecond timestamp support for ldiskfs
3106 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3107 resolution timestamps. There is not yet support for this at
3108 the Lustre filesystem level.
3111 Frequency : during server recovery
3113 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3114 Details : request with rq_no_resend flag not awake l_wait_event if they get
3118 Frequency : nfs export on patchless client
3120 Description: connectathon hang when test nfs export over patchless client
3121 Details : Disconnected dentry cannot be found with lookup, so we do not need
3122 to unhash it or make it invalid
3125 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3126 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3127 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3132 Description: open req refcounting wrong on reconnect
3133 Details : If reconnect happened between getting open reply from server and
3134 call to mdc_set_replay_data in ll_file_open, we will schedule
3135 replay for unreferenced request that we are about to free.
3136 Subsequent close will crash in variety of ways.
3137 Check that request is still eligible for replay in
3138 mdc_set_replay_data().
3143 Description: disable writes to filesystem when reading health_check file
3144 Details : the default for reading the health_check proc file has changed
3145 to NOT do a journal transaction and write to disk, because this
3146 can cause reads of the /proc file to hang and block HA state
3147 checking on a healthy but otherwise heavily loaded system. It
3148 is possible to return to the previous behaviour during configure
3149 with --enable-health-write.
3151 Severity : enhancement
3153 Description: 64-bit inode version
3154 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3155 to the inode. This will be required for version-based recovery.
3160 Description: MDS fails to start if a duplicate client export is detected
3161 Details : in some rare cases it was possible for a client to connect to
3162 an MDS multiple times. Upon recovery the MDS would detect this
3163 and fail during startup. Handle this more gracefully.
3165 Severity : enhancement
3167 Description: Add -o localflock option to simulate old noflock
3169 Details : This will achieve local-only flock/fcntl locks
3175 Description: log_commit_thread vs filter_destroy race leads to crash
3176 Details : Take import reference before releasing llog record semaphore
3181 Description: Wrong request locking in request set processing
3182 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3183 imp_delayed_list, in this place should be used imp_lock.
3186 Frequency : when reconnection
3188 Description: Grant Leak when osc reconnect to OST
3189 Details : When osc reconnect ost, OST(filter) should check whether it
3190 should grant more space to client by comparing fed_grant and
3191 cl_avail_grant, and return the granted space to client instead
3192 of "new granted" space, because client will call osc_init_grant
3193 to update the client grant space info.
3196 Frequency : when client reconnect to OST
3198 Description: Grant Leak when osc do resend and replay bulk write
3199 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3200 bulk write request, because the grant info while be sync between
3201 OSC and OST when reconnect, and we should ignore the grant info
3202 these of resend/replay write req.
3207 Description: Grant space more than available left space sometimes.
3208 Details : When then OST is about to be full, if two bulk writing from
3209 different clients came to OST. Accord the avaliable space of the
3210 OST, the first req should be permitted, and the second one
3211 should be denied by ENOSPC. But if the seconde arrived before
3212 the first one is committed. The OST might wrongly permit second
3213 writing, which will cause grant space > available space.
3216 Frequency : when client is evicted
3218 Description: Grant might be wrongly erased when osc is evicted by OST
3219 Details : when the import is evicted by server, it will fork another
3220 thread ptlrpc_invalidate_import_thread to invalidate the
3221 import, where the grant will be set to 0. While the original
3222 thread will update the grant it got when connecting. So if
3223 the former happened latter, the grant will be wrongly errased
3224 because of this race.
3229 Description: Checking Stale with correct fid
3230 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3231 to check whether it is stale, because sometimes, we want the
3232 enqueue happened anyway, and op_data.fid2 will not be initialized.
3234 Severity : enhancement
3236 Description: update patchless client
3237 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3240 Frequency : only with 2.4 kernel
3242 Description: random memory corruption
3243 Details : size of struct ll_inode_info is to big for union inode.u and this
3244 can be cause of random memory corruption.
3249 Description: Memory leak in recovery
3250 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3251 It should also check obd_fail before fsfilt_start, otherwise if
3252 fsfilt_start return -EROFS,(failover mds during mds recovery).
3253 then the req will return with repmsg->transno = 0 and rc = EROFS.
3254 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3255 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3256 be freed no matter whether fsfilt_commit success or not.
3259 Frequency : only with huge count clients
3261 Description: Prevents from taking the superblock lock in llap_from_page for
3263 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3264 for llap_from_page call in ll_removepage prevents from taking the
3265 superblock lock for a soon died page.
3270 Description: Not check open intent error before release open handle
3271 Details : in some rare cases, the open intent error is not checked before
3272 release open handle, which may cause
3273 ASSERTION(open_req->rq_transno != 0), because it tries to release
3274 the failed open handle.
3279 Description: Set cat log bitmap only after create log success.
3280 Details : in some rare cases, the cat log bitmap is set too early. and it
3281 should be set only after create log success.
3285 Description: Accessing a block bevice can re-enable I/O when Lustre is
3286 tearing down a device.
3287 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3292 Description: service threads may hog cpus when there are a lot of requests
3293 Details : Insert cond_resched to give other threads a chance to use some CPU
3298 Description: the cat log was not initialized in recovery
3299 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3300 unlink log on mds will not be initialized until mds post
3301 recovery. And also in mds post recovery, the unlink log will
3302 initialization will be done asynchronausly, so there will be race
3303 between add unlink log and unlink log initialization.
3307 Description: brw_stats were being printed incorrectly
3308 Details : brw_stats were being printed as log2 but all of them were not
3309 recorded as log2. Also remove some code duplication arising from
3310 filter_tally_{read,write}.
3314 Frequency : rare, only in recovery.
3315 Description: ASSERTION(req->rq_type != LI_POISON) failed
3316 Details : imp_lock should be held while iterating over imp_sending_list for
3317 prevent destroy request after get timeout in ptlrpc_queue_wait.
3321 Description: replay-single.sh test 52 fails
3322 Details : A lock's skiplist need to be cleanup when it being unlinked
3323 from its resource list.
3327 Description: Short directio read returns full requested size rather than
3329 Details : Direct I/O operations should return actual amount of bytes
3330 transferred rather than requested size.
3332 Severity : enhancement
3334 Description: metadata RPC reduction (e.g. for rm performance)
3335 Details : decrease the amount of synchronous RPC between clients and servers
3336 by canceling conflicing lock before the operation on the client
3337 and packing thier handles into the main operation RPC to server.
3339 Severity : enhancement
3341 Description: Async OSC create to avoid the blocking unnecessarily.
3342 Details : If an OST has no remaining object, system will block on the
3343 creation when it needs to create a new object on this OST. Now,
3344 ways use pre-created objects when available, instead of blocking on
3345 an empty osc while others are not empty. If we must block, we
3346 block for the shortest possible period of time.
3350 Description: improve handling recoverable errors
3351 Details : if request processig with error which can be recoverable on server
3352 request should be resend, otherwise page released from cache and
3355 Severity : enhancement
3357 Description: refine locking for avoid write wrong info into lov_objid file
3358 Details : fix possible races with add new target and write/update data in
3361 --------------------------------------------------------------------------------
3363 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3368 Frequency : on some architectures
3370 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3371 Details : Uninitialized flags sometimes cause configuration commands to
3375 Frequency : patchless clients only
3377 Description: missing __iget() symbol export
3378 Details : The __iget() symbol export is missing. To avoid the need for
3379 this on patchless clients the deathrow inode reaper is turned
3380 off, and we depend on the VM to clean up old inodes. This
3381 dependency was during via the fix for bug 12181.
3383 --------------------------------------------------------------------------------
3385 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3387 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3388 INTEROPERATE with older versions automatically. In many cases a
3389 special upgrade step is needed. Please read the
3390 user documentation before upgrading any part of a live system.
3391 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3392 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3393 * WARNING: Lustre configuration and startup changes are required with
3394 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3398 Severity : enhancement
3400 Description: MountConf
3401 Details : Lustre configuration is now managed via mkfs and mount
3402 commands instead of lmc and lconf. New obd types (MGS, MGC)
3403 are added for dynamic configuration management. See
3404 https://mail.clusterfs.com/wikis/lustre/MountConf for
3407 Severity : enhancement
3409 Description: dynamic OST addition
3410 Details : OSTs can now be added to a live filesystem
3412 Severity : enhancement
3414 Description: startup order invariance
3415 Details : MDTs and OSTs can be started in any order. Clients only
3416 require the MDT to complete startup.
3418 Severity : enhancement
3420 Description: parallel, asynchronous orphan cleanup
3421 Details : orphan cleanup is now performed in separate threads for each
3422 OST, allowing parallel non-blocking operation.
3424 Severity : enhancement
3426 Description: optimized stripe assignment
3427 Details : stripe assignments are now made based on ost space available,
3428 ost previous usage, and OSS previous usage, in order to try
3429 to optimize storage space and networking resources.
3431 Severity : enhancement
3433 Description: Permanently set tunables
3434 Details : All writable /proc/fs/lustre tunables can now be permanently
3435 set on a per-server basis, at mkfs time or on a live system.
3437 Severity : enhancement
3439 Description: Lustre message v2
3440 Details : Add lustre message format v2.
3442 Severity : enhancement
3444 Description: client OST exclusion list
3445 Details : Clients can be started with a list of OSTs that should be
3446 declared "inactive" for known non-responsive OSTs.
3450 Description: SPEC SFS validation failure on NFS v2 over lustre.
3451 Details : Changes the blocksize for regular files to be 2x RPC size,
3452 and not depend on stripe size.
3454 Severity : enhancement
3456 Description: Multiple MD RPCs in flight.
3457 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3458 To avoid overly-overloading MDS, introduce a limit on number of
3459 MDS RPCs in flight for a single client and add /proc controls
3460 to adjust this limit.
3462 Severity : enhancement
3464 Description: client read/write statistics
3465 Details : Add client read/write call usage stats for performance
3466 analysis of user processes.
3467 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3468 file access. extents_stats shows chunk size distribution.
3469 extents_stats_per_process show chunk size distribution per
3472 Severity : enhancement
3474 Description: mds statistics
3475 Details : Add detailed mds operations statistics in
3476 /proc/fs/lustre/mds/*/stats.
3480 Description: Failure of copying files with lustre special EAs.
3481 Details : Client side always return success for setxattr call for lustre
3482 special xattr (currently only "trusted.lov").
3487 Description: Refcount LNET uuids
3488 Details : The global LNET uuid list grew linearly with every startup;
3489 refcount repeated list entries instead of always adding to
3492 Severity : enhancement
3494 Description: Dynamic service threads
3495 Details : Within a small range, start extra service threads
3496 automatically when the request queue builds up.
3499 Frequency : mixed-endian client/server environments
3501 Description: mixed-endian crashes
3502 Details : The new msg_v2 system had some failures in mixed-endian
3505 Severity : enhancement
3507 Description: Easy OST removal
3508 Details : OSTs can be permanently deactivated with e.g. 'lctl
3509 conf_param lustre-OST0001.osc.active=0'
3511 Severity : enhancement
3513 Description: MGS proc entries
3514 Details : Added basic proc entries for the MGS showing what filesystems
3517 Severity : enhancement
3519 Description: provide MGS failover
3520 Details : Added config lock reacquisition after MGS server failover.
3522 Severity : enhancement
3524 Description: add Linux 2.4 support
3525 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3529 Description: a large application tries to do I/O to the same resource and dies
3530 in the middle of it.
3531 Details : Check the req->rq_arrival time after the call to
3532 ost_brw_lock_get(), but before we do anything about
3533 processing it & sending the BULK transfer request. This
3534 should help move old stale pending locks off the queue as
3535 quickly as obd_timeout.
3538 Frequency : when an incorrect nid is specified during startup