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 3.10.0-1160.2.1.el7 (RHEL7.9)
24 4.12.14-95.48 (SLES12 SP4)
25 4.12.14-122.20 (SLES12 SP5)
26 4.12.14-197.37 (SLES15 SP1)
27 4.15.0-48 (Ubuntu 18.04)
28 * Other clients known to build on these kernels at some point (others may also work):
29 3.10.0-862.14.4.el7 (RHEL7.5)
30 3.10.0-957.27.2.el7 (RHEL7.6)
31 4.14.0-49.13.1.el7a (RHEL7.5)
32 4.14.0-115.2.2.el7a (RHEL7.6)
33 4.18.0-80.11.2.el8 (RHEL8.0)
34 4.18.0-147.8.1.el8 (RHEL8.1)
35 4.18.0-193.6.3.el8 (RHEL8.2)
36 4.4.120-92.70 (SLES12 SP2)
37 4.4.180-94.100 (SLES12 SP3)
38 4.4.0-131 (Ubuntu 16.04)
39 5.4.0-37 (Ubuntu 20.04)
40 5.4.0 (vanilla kernel.org)
41 * Recommended e2fsprogs version: 1.45.6.wc1 or newer
42 * Recommended ZFS version: 0.8.4
43 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
44 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
45 stack overflow. For more information, please refer to bugzilla 17630.
46 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
47 the re-exporting nodes to be mounted with "32bitapi" mount option
49 --------------------------------------------------------------------------------
53 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
54 for currently supported client and server kernel versions.
55 * Server primary kernels built and tested during release cycle:
56 3.10.0-1062.1.1.el7 (RHEL7.7)
57 * Other server kernels known to build and work at some point (others may also work):
58 3.10.0-862.14.4.el7 (RHEL7.5)
59 3.10.0-957.27.2.el7 (RHEL7.6)
60 4.18.0-80.7.1.el8 (RHEL8.0)
61 4.4.120-92.70 (SLES12 SP2)
62 4.4.180-94.100 (SLES12 SP3)
63 4.4.0-131 (Ubuntu 16.04)
64 4.15.0-32 (Ubuntu 18.04)
65 vanilla linux 4.6.7 (ZFS only)
66 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
67 * Client primary unpatched kernels built and tested during release cycle:
68 3.10.0-1062.1.1.el7 (RHEL7.7)
69 4.12.14-95.29 (SLES12 SP4)
70 4.15.0-48 (Ubuntu 18.04)
71 * Other clients known to build on unpatched kernels at some point (others may also work):
72 3.10.0-862.14.4.el7 (RHEL7.5)
73 3.10.0-957.27.2.el7 (RHEL7.6)
74 4.14.0-49.13.1.el7a (RHEL7.5)
75 4.14.0-115.2.2.el7a (RHEL7.6)
76 4.18.0-80.7.1.el8 (RHEL8.0)
77 4.4.120-92.70 (SLES12 SP2)
78 4.4.180-94.100 (SLES12 SP3)
79 4.4.0-131 (Ubuntu 16.04)
80 vanilla linux 4.15.0 (ZFS only)
81 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
82 * Recommended ZFS / SPL version: 0.7.13
83 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
84 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
85 stack overflow. For more information, please refer to bugzilla 17630.
86 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
87 the re-exporting nodes to be mounted with "32bitapi" mount option
88 * Note for Ubuntu 14.04.5:
89 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
90 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
92 --------------------------------------------------------------------------------
96 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
97 for currently supported client and server kernel versions.
98 * Server known to build on the following kernels (others may also work):
99 2.6.32-696.18.7.el6 (RHEL6.9)
100 3.10.0-862.14.4.el7 (RHEL7.5)
101 3.10.0-957.el7 (RHEL7.6)
102 4.4.120-92.70 (SLES12 SP2)
103 4.4.162-94.69 (SLES12 SP3)
104 4.4.0-131 (Ubuntu 16.04)
105 4.15.0-32 (Ubuntu 18.04)
106 vanilla linux 4.6.7 (ZFS only)
107 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
108 * Client known to build on unpatched kernels (others may also work):
109 2.6.32-696.18.7.el6 (RHEL6.9)
110 2.6.32-754.6.3.el6 (RHEL6.10)
111 3.10.0-862.14.4.el7 (RHEL7.5)
112 3.10.0-957.el7 (RHEL7.6)
113 4.14.0-49.13.1.el7a (RHEL7.5)
114 4.14.0-115.2.2.el7a (RHEL7.6)
115 4.4.120-92.70 (SLES12 SP2)
116 4.4.162-94.69 (SLES12 SP3)
117 4.4.0-131 (Ubuntu 16.04)
118 4.15.0-32 (Ubuntu 18.04)
119 vanilla linux 4.15.0 (ZFS only)
120 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
121 * Recommended ZFS / SPL version: 0.7.9
122 * Tested with ZFS / SPL version: 0.7.9
123 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
124 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
125 stack overflow. For more information, please refer to bugzilla 17630.
126 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
127 the re-exporting nodes to be mounted with "32bitapi" mount option
128 * Note for Ubuntu 14.04.5:
129 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
130 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
132 --------------------------------------------------------------------------------
134 2018-04-03 Intel Corporation
136 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
137 for currently supported client and server kernel versions.
138 * Server known to build on patched kernels:
139 2.6.32-431.29.2.el6 (RHEL6.5)
140 2.6.32-504.30.3.el6 (RHEL6.6)
141 2.6.32-573.26.1.el6 (RHEL6.7)
142 2.6.32-642.15.1.el6 (RHEL6.8)
143 2.6.32-696.18.7.el6 (RHEL6.9)
144 3.10.0-693.21.1.el7 (RHEL7.4)
145 3.0.101-0.47.71 (SLES11 SP3)
146 3.0.101-107 (SLES11 SP4)
147 3.12.74-60.64.40 (SLES12 SP1)
148 4.4.114-92.64 (SLES12 SP2)
149 4.4.114-94.11 (SLES12 SP3)
150 3.13.0-101 (Ubuntu 14.04, ZFS only)
151 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
152 4.4.0-116 (Ubuntu 16.04)
153 vanilla linux 4.6.7 (ZFS only)
154 * Client known to build on unpatched kernels:
155 2.6.32-431.29.2.el6 (RHEL6.5)
156 2.6.32-504.30.3.el6 (RHEL6.6)
157 2.6.32-573.26.1.el6 (RHEL6.7)
158 2.6.32-642.15.1.el6 (RHEL6.8)
159 2.6.32-696.18.7.el6 (RHEL6.9)
160 3.10.0-693.21.1.el7 (RHEL7.4)
161 3.0.101-0.47.71 (SLES11 SP3)
162 3.0.101-107 (SLES11 SP4)
163 3.12.74-60.64.40 (SLES12 SP1)
164 4.4.114-92.64 (SLES12 SP2)
165 4.4.114-94.11 (SLES12 SP3)
166 3.13.0-101 (Ubuntu 14.04)
167 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
168 4.4.0-116 (Ubuntu 16.04)
170 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
171 * Recommended ZFS / SPL version: 0.7.6
172 * Tested with ZFS / SPL version: 0.7.6
173 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
174 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
175 stack overflow. For more information, please refer to bugzilla 17630.
176 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
177 the re-exporting nodes to be mounted with "32bitapi" mount option
178 * Note for Ubuntu 14.04.5:
179 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
180 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
182 --------------------------------------------------------------------------------
184 2017-07-05 Intel Corporation
186 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
187 for currently supported client and server kernel versions.
188 * Server known to build on patched kernels:
189 2.6.32-431.29.2.el6 (RHEL6.5)
190 2.6.32-504.30.3.el6 (RHEL6.6)
191 2.6.32-573.26.1.el6 (RHEL6.7)
192 2.6.32-642.15.1.el6 (RHEL6.8)
193 2.6.32-696.3.1.el6 (RHEL6.9)
194 3.10.0-514.21.1.el7 (RHEL7.3)
195 3.0.101-0.47.71 (SLES11 SP3)
196 3.0.101-100 (SLES11 SP4)
197 3.12.74-60.64.40 (SLES12 SP1)
198 4.4.59-92.17 (SLES12 SP2)
199 vanilla linux 4.6.7 (ZFS only)
200 * Client known to build on unpatched kernels:
201 2.6.32-431.29.2.el6 (RHEL6.5)
202 2.6.32-504.30.3.el6 (RHEL6.6)
203 2.6.32-573.26.1.el6 (RHEL6.7)
204 2.6.32-642.15.1.el6 (RHEL6.8)
205 2.6.32-696.3.1.el6 (RHEL6.9)
206 3.10.0-514.21.1.el7 (RHEL7.3)
207 3.0.101-0.47.71 (SLES11 SP3)
208 3.0.101-100 (SLES11 SP4)
209 3.12.74-60.64.40 (SLES12 SP1)
210 4.4.59-92.17 (SLES12 SP2)
212 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
213 * Recommended ZFS / SPL version: 0.6.5.9
214 * Tested with ZFS / SPL version: 0.6.5.9
215 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
216 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
217 stack overflow. For more information, please refer to bugzilla 17630.
218 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
219 the re-exporting nodes to be mounted with "32bitapi" mount option
221 --------------------------------------------------------------------------------
223 12-07-2016 Intel Corporation
225 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
226 for currently supported client and server kernel versions.
227 * Server known to build on patched kernels:
228 2.6.32-431.29.2.el6 (RHEL6.5)
229 2.6.32-504.30.3.el6 (RHEL6.6)
230 2.6.32-573.26.1.el6 (RHEL6.7)
231 2.6.32-642.11.1.el6 (RHEL6.8)
232 3.10.0-514.el7 (RHEL7.3)
233 3.0.101-0.47.71 (SLES11 SP3)
234 3.0.101-80 (SLES11 SP4)
235 3.12.62-60.64.8 (SLES12 SP1)
236 vanilla linux 4.5.7 (ZFS only)
237 * Client known to build on unpatched kernels:
238 2.6.32-431.29.2.el6 (RHEL6.5)
239 2.6.32-504.30.3.el6 (RHEL6.6)
240 2.6.32-573.26.1.el6 (RHEL6.7)
241 2.6.32-642.11.1.el6 (RHEL6.8)
242 3.10.0-514.el7 (RHEL7.3)
243 3.0.101-0.47.71 (SLES11 SP3)
244 3.0.101-80 (SLES11 SP4)
245 3.12.62-60.64.8 (SLES12 SP1)
247 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
248 * Recommended ZFS / SPL version: 0.6.5.8
249 * Tested with ZFS / SPL version: 0.6.5.8
250 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
251 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
252 stack overflow. For more information, please refer to bugzilla 17630.
253 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
254 the re-exporting nodes to be mounted with "32bitapi" mount option
256 --------------------------------------------------------------------------------
258 02-29-2016 Intel Corporation
260 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
261 for currently supported client and server kernel versions.
262 * Server known to build on patched kernels:
263 2.6.32-431.29.2.el6 (RHEL6.5)
264 2.6.32-504.30.3.el6 (RHEL6.6)
265 2.6.32-573.12.1.el6 (RHEL6.7)
266 3.10.0-327.3.1.el7 (RHEL7.2)
267 3.0.101-0.47.71 (SLES11 SP3)
268 3.0.101-68 (SLES11 SP4)
269 vanilla linux 4.2.1 (ZFS only)
270 * Client known to build on unpatched kernels:
271 2.6.32-431.29.2.el6 (RHEL6.5)
272 2.6.32-504.30.3.el6 (RHEL6.6)
273 2.6.32-573.12.1.el6 (RHEL6.7)
274 3.10.0-327.3.1.el7 (RHEL7.2)
275 3.0.101-0.47.71 (SLES11 SP3)
276 3.0.101-68 (SLES11 SP4)
279 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
280 * Recommended ZFS / SPL version: 0.6.4.2
281 * Tested with ZFS / SPL version: 0.6.4.2
282 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
283 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
284 stack overflow. For more information, please refer to bugzilla 17630.
285 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
286 the re-exporting nodes to be mounted with "32bitapi" mount option
288 --------------------------------------------------------------------------------
290 03-10-2015 Intel Corporation
292 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
293 for currently supported client and server kernel versions.
294 * Server known to build on patched kernels:
295 2.6.32-431.29.2.el6 (RHEL6.5)
296 2.6.32-504.8.1.el6 (RHEL6.6)
297 3.0.101-0.46 (SLES11 SP3)
298 * Client known to build on unpatched kernels:
299 2.6.32-431.29.2.el6 (RHEL6.5)
300 2.6.32-504.8.1.el6 (RHEL6.6)
301 3.10.0-123.20.1.el7 (RHEL7)
302 3.0.101-0.46 (SLES11 SP3)
303 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
304 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
305 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
306 stack overflow. For more information, please refer to bugzilla 17630.
307 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
308 the re-exporting nodes to be mounted with "32bitapi" mount option
310 Severity : enhancement
312 Description: control OST-index in IDIF via ROCOMPAT flag.
313 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
314 last_rcvd file. For new formatted OST device, it will be auto set;
315 for the case of upgrading from old OST device, you can enable it
316 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
317 enabled, for new created OST-object, its IDIF-in-LMA will contain
318 the OST-index; for the existing OST-object, the OSD will convert
319 old format IDIF as new format IDIF with OST-index stored in the
320 LMA EA when accessing such OST-object or via OI scrub. Once such
321 flag is enabled, it cannot be reverted back, so the system cannot
322 be downgraded to the orignal incompatible version.
324 --------------------------------------------------------------------------------
326 07-30-2014 Intel Corporation
328 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
329 for currently supported client and server kernel versions.
330 * Server known to build on patched kernels:
331 2.6.32-431.20.3.el6 (RHEL6.5)
332 3.0.101-0.31 (SLES11 SP3)
333 * Client known to build on unpatched kernels:
334 2.6.32-431.20.3.el6 (RHEL6.5)
335 3.0.101-0.31 (SLES11 SP3)
338 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
339 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
340 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
341 stack overflow. For more information, please refer to bugzilla 17630.
342 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
343 the re-exporting nodes to be mounted with "32bitapi" mount option
345 --------------------------------------------------------------------------------
347 10-31-2013 Intel Corporation
349 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
350 * Server builds for kernels:
351 2.6.32-358.18.1.el6 (RHEL6.4)
352 * Client builds for unpatched kernels:
353 2.6.32-358.18.1.el6 (RHEL6.4)
354 3.0.92-0.8 (SLES11 SP3)
356 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
357 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
358 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
359 stack overflow. For more information, please refer to bugzilla 17630.
360 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
361 the re-exporting nodes to be mounted with "32bitapi" mount option
363 --------------------------------------------------------------------------------
365 05-30-2013 Intel Corporation
367 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
368 * Server builds for kernels:
369 2.6.32-358.6.2.el6 (RHEL6.4)
370 * Client builds for unpatched kernels:
371 2.6.32-358.6.2.el6 (RHEL6.4)
372 3.0.74-0.6.6 (SLES11 SP2)
374 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
375 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
376 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
377 stack overflow. For more information, please refer to bugzilla 17630.
378 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
379 the re-exporting nodes to be mounted with "32bitapi" mount option
381 --------------------------------------------------------------------------------
383 9-30-2012 Whamcloud, Inc.
385 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
386 * Server support for kernels:
387 2.6.32-279.5.1.el6 (RHEL6)
388 * Client support for unpatched kernels:
389 2.6.32-279.5.1.el6 (RHEL6)
391 2.6.18-238.19.1.el5 (RHEL5)
392 2.6.16.60-0.69.1 (SLES10)
393 * Recommended e2fsprogs version: 1.41.90.wc4
394 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
395 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
396 stack overflow. For more information, please refer to bugzilla 17630.
397 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
398 the re-exporting nodes to be mounted with "32bitapi" mount option
400 Severity : enhancement
402 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
404 Severity : enhancement
406 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
408 Severity : enhancement
410 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
412 Severity : enhancement
414 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
416 Severity : enhancement
418 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
420 --------------------------------------------------------------------------------
422 04-30-2012 Whamcloud, Inc.
424 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
425 * Server support for kernels:
426 2.6.32-220.4.2.el6 (RHEL6)
427 * Client support for unpatched kernels:
428 2.6.32-220.4.2.el6 (RHEL6)
430 2.6.18-238.19.1.el5 (RHEL5)
431 2.6.16.60-0.69.1 (SLES10)
432 * Recommended e2fsprogs version: 1.41.90.wc4
433 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
434 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
435 stack overflow. For more information, please refer to bugzilla 17630.
436 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
437 the re-exporting nodes to be mounted with "32bitapi" mount option
439 Severity : enhancement
441 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
443 Severity : enhancement
445 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
447 Severity : enhancement
449 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
451 Severity : enhancement
453 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
455 --------------------------------------------------------------------------------
457 09-30-2011 Whamcloud, Inc.
459 * Server support for kernels:
460 2.6.18-238.19.1.el5 (RHEL5)
461 2.6.32-131.6.1.el6 (RHEL6)
462 * Client support for unpatched kernels:
463 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
464 2.6.18-238.19.1.el5 (RHEL5)
465 2.6.32-131.6.1.el6 (RHEL6)
466 2.6.29.4-167.fc11 (FC11)
467 2.6.16.60-0.69.1 (SLES10)
469 * Recommended e2fsprogs version: 1.41.90.wc3
470 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
471 Lustre filesystem with 4K stack may cause a stack overflow. For more
472 information, please refer to bugzilla 17630.
473 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
474 mounted with "32bitapi" mount option
476 Severity : enhancement
477 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
479 Severity : enhancement
480 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
482 Severity : enhancement
483 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
486 Frequency : only with SLES10
488 Description: Use OFED "KMP" provided by Novell
489 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
490 Lustre is now built against this package. That means you need to
491 install the ofed-kmp package from Novell for the patchless client.
492 Note that the ofed-kmp that Novell ships may not exactly match the
493 kernel version but should still be compatible.
495 Severity : enhancement
497 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
498 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
500 --------------------------------------------------------------------------------
502 2010-07-15 Oracle, Inc.
504 * Server support for kernels:
505 2.6.18-164.11.1.el5 (RHEL 5)
506 2.6.18-164.11.1.0.1.el5 (OEL 5)
507 * Client support for unpatched kernels:
508 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
509 2.6.18-164.11.1.el5 (RHEL 5),
510 2.6.18-164.11.1.0.1.el5 (OEL 5)
511 2.6.16.60-0.42.8 (SLES 10),
513 2.6.29.4-167.fc11 (FC11)
514 * Recommended e2fsprogs version: 1.41.10-sun2
516 Severity : enhancement
518 Description: Distribute lfs_migrate script with lustre
519 Details : The lfs_migrate mentioned in the manual is now included in the
520 lustre tree in lustre/scripts and will distributed in lustre RPMs.
522 Severity : enhancement
524 Description: Failover nid list added to import proc file.
526 Severity : enhancement
528 Description: "som_preview" mount option required to use SOM
529 Details : The clients will need to use som_preview mount option
533 Description: Lustre does not do 1MB IOs to HW RAID
534 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
536 Severity : enhancement
538 Description: lfs quota output is not very convenient for awk/sed-parsing
539 Details : Some positions in lfs quota output table could be empty or
540 non-empty which made it hard to parse it with scripts, now
541 a dash is put instead of space where there is not supposed
546 Description: Update to OFED 1.5.1
547 Details : OFED 1.5.1 will be used in environments that don't use
548 vendor supplied OFED.
552 Description: Remove lnet. prefix from lctl params display
553 Details : Also renamed lnet.memused to lnet_memused to
558 Description: Use conf_param -d to remove permanant settings.
562 Description: Add list_param -R
563 Details : lctl list_param now supports recursive mode.
566 Bugzilla : 21829, 22312
567 Description: Fix llobdstat.
568 Details : 1. Now updating the write_bytes counter
569 2. Port script fixes from 1.8.
573 Description: decrease the usage of memory on clients.
574 Details : 1. On clients, recycle dentries and inodes unused.
575 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
580 Description: llobdstat fix and enhancement
581 Details : add a counter to set a limit to how many samples will be returned
582 fix a wildcard in the path to limit to obdfilter stats only
586 Description: lfs check only allowed for root
587 Details : Code cleanups and added a regresion test of non-root use of
592 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
593 Details : Fix hr->hr_index overload.
597 Description: Fix FIEMAP functionality.
601 Description: FC11 patchless client support added
605 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
606 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
610 Description: New acc-sm script and various test-framework enhancments.
614 Description: Previously landed patch was reverted.
618 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
622 Description: Add ldiskfs maxdirsize mount option.
626 Description: Fix mkfs.lustre support for 16TB LUNs.
630 Description: Print mmp_check_interval
631 Details : print mmp_check_interval and make it possible to abort
632 mount operation in case it takes too long.
636 Description: Add cascading_rw to lustre mpi tests.
640 Description: Store SOM data in EA.
641 Details : Also several SOM related cleanups.
645 Description: Add refcount to md_open_data
649 Description: Use refcount on lov_request_set to prevent memory corruption.
653 Description: Statahead: use parent dir's i_mutex for synchronization.
657 Description: loadgen improvements.
661 Description: Enable peer health detection in ksocklnd and ko2iblnd.
665 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
669 Description: Fix race on obd_devcie:md_stats
673 Description: Fix SLES 11 client builds.
674 Details : Resolved uninitalized pointer gcc warnings.
678 Description: Allow non-root access for "lfs check".
679 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
683 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
685 Severity : enhancement
687 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
688 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
692 Description: Sanity test_27p fails.
693 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
694 Sanity tests 27 were cleaned up and improved.
698 Description: Unify req format on client/servers
699 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
700 buffers and swabbers approach..
705 Description: drop join file stuff.
707 Severity : enhancement
709 Description: Add 2.6.27 and SLES11 (patchless client) support
713 Description: Fix in ptlrpc_expire_one_request() to print the signed time
716 Severity : enhancement
718 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
721 Severity : enhancement
723 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
725 Severity : enhancement
727 Description: correctly handle big reply message.
728 Details : send LNet event if reply is bigger than buffer and adjust this buffer
733 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
735 Severity : enhancement
737 Description: Add support for OEL5.
741 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
743 Severity : enhancement
745 Description: "weak-modules" support
746 Details : Implement "weak-modules" support which enables kernel modules
747 to be used with any kernel that implements the same kABI. In
748 order to achieve this modules are now installed in
749 /lib/modules/$(uname -r)/updates/kernel on all distributions.
753 Description: client could not reconnect to OST because of an active request.
754 Details : The client now retries to reconnect to the same server, if a
755 connect request failed with EBUSY or -EAGAIN. Test case 35b
756 conf-sanity.sh has been created.
760 Description: Don't allow make backward step on assignin osc next id.
761 Details : race between allocation next id and ll_sync thread can be cause
762 of set wrong osc next id and can be kill valid ost objects.
766 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
770 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
774 Description: Error handling in osc_statfs_interpret() has been improved.
775 Details : Check in osc_statfs_interpret() for EBADR.
779 Description: Do not send statfs() requests to OSTs disabled by administrator.
780 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
782 Severity : enhancement
784 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
786 Severity : enhancement
788 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
790 Severity : enhancement
792 Description: Enhancement for lfs(1) command to use numeric uid/gid.
796 Description: Improved cleanup procedure for conf-sanity test_46a.
800 Description: Do not start bulk transfer, if client tried to reconnect.
801 Details : Do not start bulk transfer, if client tried to reconnect,
802 but failed due to active rpcs. Check for exp_abort_active_req
803 has been implemented.
807 Description: Prevent inconsistences between linux and lustre mount structures.
808 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
809 Make the sleep interruptible.
811 Severity : enhancement
813 Description: provide server to client comms path
814 Details : server to client communications path via new LDLM_SET_INFO rpc
818 Description: truncate starts GFP_FS allocation under transaction causing deadlock
819 Details : ldiskfs_truncate calls grab_cache_page which may start page
820 allocation under an open transaction. This may lead to
821 calling prune_icache with consequent lustre reentrance.
825 Description: send correctly lsm on open replay
826 Details : MDS is trust to LSM size on replay open, but client can set wrong size
831 Description: enable client interface failover
832 Details : When a child reconnects from another NID, properly update export
833 nid hash position and ldlm reverse import.
835 Severity : enhancement
837 Description: Communicate OST degraded/readonly state via statfs to MDS
838 Details : Flags in the statfs returned from OSTs indicate whether the
839 OST is in a degraded RAID state, or if the filesystem has
840 turned read-only after a filesystem error is detected.
845 Description: don't panic if EPROTO was hit when reading symlink
846 Details : correctly handling request reference in error cases.
848 Severity : enhancement
850 Description: Add LustreNetLink, a kernel-userspace communcation path.
852 Severity : enhancement
854 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
859 Description: access to llog context before init.
860 Details : move handling CATALOGS file at osc layer and forbid access to llog
864 Frequency : rare, only when client is writing to OST on local node
866 Description: Avoid deadlock for local client writes
867 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
868 memory freeing context. This allows OST threads to set the
869 PF_MEMALLOC flag on task structures in order to allocate memory
870 from reserved pools and complete IO.
871 Use GFP_HIGHUSER for OST allocations for non-local client writes,
872 so that the OST threads generate memory pressure and allow
873 inactive pages to be reclaimed.
875 Severity : enhancement
877 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
882 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
883 Details : move ldlm namespace creation in setup phase to avoid grab
884 _lprocfs_lock with cli_sem held.
888 Description: Temporarily disable grant shrink.
889 Details : Disable the feature for debugging.
892 Frequency : only when formatting test filesystems
894 Description: Unable to run several mkfs.lustre on loop devices at the same time
895 Details : mkfs.lustre returns error 256 on the concurrent loop devices
896 formatting. The solution is to proper handle the error.
898 Severity : enhancement
900 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
902 Severity : enhancement
904 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
909 Description: resolve race between obd_disconnect and class_disconnect_exports
910 Details : if obd_disconnect will be called to already disconnected export he
911 forget release one reference and osc module can't unloaded.
913 Severity : enhancement
915 Description: Allow tuning service thread via /proc
916 Details : For each service a new
917 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
918 created that can be used to set min/max thread counts, and get the
919 current number of running threads.
924 Descriptoin: don't return error if have partially created objects for file.
925 Details : lov_update_create_set uses set->set_success as index for created
926 objects, so if some requests will be failed, they will have hole
927 at end of array and qos_shrink_lsm for allocate correct lsm.
929 Severity : enhancement
931 Description: Update OFED support to 1.4.1
936 Description: Reduce small size read RPC
937 Details : Set read-ahead limit for every file and only do read-ahead when
938 available read-ahead pages are bigger than 1M to avoid small size
941 Severity : enhancement
943 Description: move AT tunable parameters for more consistent usage
944 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
946 Severity : enhancement
948 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
949 Details : allow skip disconnected ost for send statfs request and hide error
955 Description: fix racy locking of mballoc block bitmaps causing BUG
956 Details : The locking of the mballoc buddy bitmap and the in-memory
957 block bitmap was using two different spin locks in some
958 cases. This made it possible to incorrectly access the
959 mballoc bitmap while another process was modifying it,
960 causing a sanity assertion to fail. While no on-disk corruption
961 was reported, there was some risk of this happening.
964 Frequency : rare, on llog test 6
966 Descriptoin: don't allow connect to already connected import
967 Details : allowing connect to already connected import is hide connecting problem.
972 Descriptoin: allow kill process which wait statahead result
973 Details : for some reasons 'ls' can stick in waiting result from statahead,
974 in this case need way for kill this process.
976 Severity : enhancement
978 Description: Add state history info file, enhance import info file
979 Details : Track import connection state changes in a new osc/mdc proc file;
980 add overview-type data to the osc/mdc import proc file.
982 Severity : enhancement
984 Description: MDS create should not wait for statfs RPC while holding DLM lock.
986 Severity : enhancement
988 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
993 Descriptoin: OST grant too much space to client even there are not enough space.
994 Details : Client will shrink its grant cache to OST if there are no write
995 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
996 this grant cache if there are already not enough avaible space
997 (left_space < total_clients * 32M).
1000 Frequency : start MDS on uncleanly shutdowned MDS device
1002 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
1003 Details : stay in waiting mds<>ost recovery finished produce random bugs
1004 due race between two ll_sync thread for one lov target. send
1005 ACTIVATE event only if connect realy finished and import have
1009 Frequency : rare, connect and disconnect target at same time
1011 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1012 Details : don't call obd_disconnect under lov_lock. this long time
1013 operation and can block ptlrpcd which answer to connect request.
1018 Descriptoin: don't lose wakeup for imp_recovery_waitq
1019 Details : recover_import_no_retry or invalidate_import and import_close can
1020 both sleep on imp_recovery_waitq, but we was send only one wakeup
1024 Frequency : always with long access acl
1026 Descriptoin: mds can't pack reply with long acl.
1027 Details : mds don't control size of acl but they limited by reint/getattr
1030 Severity : enhancement
1032 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1034 Severity : enhancement
1036 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1039 Frequency : start MDS on uncleanly shutdowned MDS device
1041 Descriptoin: aborting recovery hang on MDS
1042 Details : don't throttle destroy RPCs for the MDT.
1045 Frequency : on remount
1047 Description: external journal device not working after the remount
1048 Details : clear dev_rdonly flag for external journal devices in
1054 Description: shutdown vs evict race
1055 Details : client_disconnect_export vs connect request race.
1056 if client will evicted at this time - we start invalidate
1057 thread without referece to import and import can be freed
1061 Frequency : rare, need acl's on inode.
1063 Description: client can't handle ost additional correctly
1064 Details : if ost was added after client connected to mds client can have
1065 hit lnet_try_match_md ... to big messages to wide striped files.
1066 in this case need teach client to handle config events about add
1067 lov target and update client max ea size at that event.
1069 Severity : enhancement
1071 Description: Changelogs
1072 Details : Changelogs are a lightweight mechanism to track filesystem
1073 metadata and namespace changes. The changelog is recorded
1074 permanently on the MDTs, and is periodically "consumed" / purged
1075 when records are no longer needed.
1077 Severity : enhancement
1079 Description: compact fld format with extents
1080 Details : Store range of seq rather than every seq in FLD. Seq
1081 controller update FLD rather than clients. In Case of CMD, mdt0
1082 has FLD, all other metadata server act as non persistent proxy
1083 for FLD queries and cache fld entries in fld cache.
1088 Description: don't skip ost target if they assigned to file
1089 Details : Drop slow OSCs if we can, but not for requested start idx.
1090 This means "if OSC is slow and it is not the requested
1091 start OST, then it can be skipped, otherwise skip it only
1092 if it is inactive/recovering/out-of-space.
1096 Description: more cleanup in mds_lov
1097 Details : not send LOV EA under replay, we can't know about they size at this
1098 time. Don't allow client connect to mds before any ost connected,
1099 for avoid problems with LOV EA size and returning EIO to client.
1101 Severity : enhancement
1103 Description: Interoperability at server side (Disk interoperability)
1105 Severity : enhancement
1107 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1109 Severity : enhancement
1111 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1113 Severity : enhancement
1115 Description: New client IO stack (CLIO).
1117 Severity : enhancement
1119 Description: Commit on sharing. Eliminate inter-client dependencies between
1120 uncommitted transactions by doing transaction commits.
1121 Thereby clients may recovery independently.
1124 Frequency : Create a symlink file with a very long name
1126 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1127 Details : If there is no extra space in the request for early cancels,
1128 ldlm_req_handles_avail() returns 0 instead of a negative value.
1130 Severity : enhancement
1132 Description: Add /proc entry for import status
1133 Details : The mdc, osc, and mgc import directories now have
1134 an import directory that contains useful import data for debugging
1135 connection problems.
1137 Severity : enhancement
1139 Description: Re-disable certain /proc logging
1140 Details : Enable and disable client's offset_stats, extents_stats and
1141 extents_stats_per_process stats logging on the fly.
1144 Frequency : Only on FC kernels 2.6.22+
1146 Description: oops in statahead
1147 Details : Do not drop reference count for the dentry from VFS when lookup,
1148 VFS will do that by itself.
1150 Severity : enhancement
1152 Description: Generic /proc file permissions
1153 Details : Set /Proc file permissions in a more generic way to enable non-
1154 root users operate on some /proc files.
1158 Description: Hitting mdc_commit_close() ASSERTION
1159 Details : Properly handle request reference release in
1160 ll_release_openhandle().
1164 Description: quota recovery deadlock during mds failover
1165 Details : This patch includes att18982, att18236, att18237 in bz14840.
1167 1. fix osts hang when mds does failover with quotaon
1168 2. prevent watchdog storm when osts threads wait for the
1173 Frequency : only patchless client
1174 Description: add workaround for race between add/remove dentry from hash
1176 Severity : enhancement
1178 Description: Allow OST glimpses to return PW locks
1182 Description: LBUG when llog conf file is full
1183 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1187 Description: Prevent import from entering FULL state when server in recovery
1191 Description: service mount cannot take device name with ":"
1192 Details : Only when device name contains ":/" will mount treat it as
1198 Description: replace ptlrpcd with the statahead thread to interpret the async
1199 statahead RPC callback
1203 Frequency : on recovery
1204 Description: I/O failures after umount during fail back
1205 Details : if client reconnected to restarted server we need join to recovery
1206 instead of find server handler is changed and process self
1207 eviction with cancel all locks.
1209 Severity : enhancement
1211 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1213 Severity : enhancement
1215 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1217 Severity : enhancement
1219 Description: Upcall on Lustre log has been dumped
1220 Details : Allow for a user mode script to be called once a Lustre log has
1221 been dumped. It passes the filename of the dumped log to the
1222 script, the location of the script can be specified via
1223 /proc/sys/lnet/debug_log_upcall.
1228 Description: avoid idr_remove called for id which is not allocated.
1229 Details : Move assigment s_dev for clustered nfs to end of initialization,
1230 to avoid problem with error handling.
1235 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1236 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1237 into CONN_USED_HASH and this prodice warning when put connection
1238 again in unused hash.
1241 Severity : enhancement
1243 Description: File striping can now be set to use an arbitrary pool of OSTs.
1245 Severity : enhancement
1247 Description: Export bytes_read/bytes_write count on OSC/OST.
1251 Description: Early reply size mismatch, MGC loses connection
1252 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1253 the connect flags are properly negotiated.
1258 Description: quotas are not honored with O_DIRECT
1259 Details : all writes with the flag O_DIRECT will use grants which leads to
1260 this problem. Now using OBD_BRW_SYNC to guard this.
1264 Description: add quota statistics
1265 Details : 1. sort out quota proc entries and proc code.
1266 2. add quota statistics
1268 Severity : enhancement
1270 Description: enable quota support for HEAD.
1274 Description: Properly propagate oinfo flags from lov to osc for statfs
1275 Details : restore missing copy oi_flags to lov requests.
1277 Severity : enhancement
1279 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1280 : l_getgroups(8), lst(8), routerstat(8)
1281 Details : included man pages for llobdstat(8), llstat(8),
1282 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1284 Severity : enhancement
1286 Description: configure's --enable-quota should check the
1287 : kernel .config for CONFIG_QUOTA
1288 Details : configure is terminated if --enable-quota is passed but
1289 : no quota support is in kernel
1293 Description: Remove portals compatibility
1294 Details : Remove portals compatibility, not interoperable with releases
1299 Description: Resolve device initialization race
1300 Details : Prevent proc handler from accessing devices added to the
1301 obd_devs array but yet be intialized.
1303 Severity : enhancement
1305 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1307 Severity : enhancement
1309 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1314 Description: Using wrong pointer in osc_brw_prep_request
1315 Details : Access to array[-1] can produce panic if kernel compiled with
1316 CONFIG_PAGE_ALLOC enabled
1320 Description: Client runs out of low memory
1321 Details : Consider only lowmem when counting initial number of llap pages
1325 Description: *optional* service tags registration
1326 Details : if the "service tags" package is installed on a Lustre node
1327 When the filesystem is mounted, a local-node service tag will
1328 be created. See http://inventory.sun.com/ for more information
1329 about the Service Tags asset management system.
1333 Description: Kernel BUG tries to release flock
1334 Details : Lustre does not destroy flock lock before last reference goes
1335 away. So always drop flock locks when client is evicted and
1336 perform unlock regardless of successfulness of speaking to MDS.
1340 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1344 Description: sanity test 65a fails if stripecount of -1 is set
1345 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1350 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1351 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1354 Severity : enhancement
1356 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1360 Description: do not process already freed flock
1361 Details : flock can possibly be freed by another thread before it reaches
1362 to ldlm_flock_completion_ast.
1366 Description: LBUG during stress test
1367 Details : Need properly lock accesses the flock deadlock detection list.
1371 Description: oops in page fault handler
1372 Details : kernel page fault handler can return two special 'pages' in error
1373 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1377 Description: timeout with invalidate import.
1378 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1379 should be handled by ptlrpcd. This produce long age waiting and
1380 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1382 Severity : enhancement
1384 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1388 Description: enable MGS and MDT services start separately
1389 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1390 a co-located MGS without starting the MGS, which is a complement
1391 to 'nosvc' mount option.
1395 Frequency : after recovery
1396 Description: precreate to many object's after del orphan.
1397 Details : del orphan st in oscc last_id == next_id and this triger growing
1398 count of precreated objects. Set flag LOW to skip increase count
1399 of precreated objects.
1403 Frequency : rare, on clear nid stats
1404 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1405 Details : when clean nid stats sometimes try destroy live entry,
1406 and this produce panic in free.
1410 Description: Stack overflow during MDS log replay
1411 ease stack pressure by using a thread dealing llog_process.
1415 Description: wait until IO finished before start new when do lock cancel.
1416 Details : VM protocol want old IO finished before start new, in this case
1417 need wait until PG_writeback is cleared until check dirty flag and
1418 call writepages in lock cancel callback.
1420 Severity : enhancement
1422 Description: using special macro for print time and cleanup in includes.
1426 Description: mds_mfd_close() ASSERTION(rc == 0)
1427 Details : In mds_mfd_close(), we need protect inode's writecount change
1428 within its orphan write semaphore to prevent possible races.
1432 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1436 Frequency : rare, on shutdown ost
1437 Description: don't hit live lock with umount ost.
1438 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1439 use shrink_dcache_sb instead.
1443 Description: don't panic with use echo client
1444 Details : echo client pass NULL as client nid pointer and this produce null
1445 pointer dereference.
1449 Description: fix build on ppc32
1450 Details : compile code with -m64 flag produce wrong object file for ppc32.
1454 Description: add message levels for liblustreapi
1458 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1459 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1460 will result in an -EAGAIN and in the exit call path we call
1461 alloc_rr() which will with increasing aggressiveness attempt to
1462 aquire precreated objects on the minimum number of required OSCs.
1466 Description: Use old size assignment to avoid deadlock
1467 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1468 the scheduling while holding a spinlock. We do not need locking
1469 for size in ll_update_inode() because size is only updated from
1470 the MDS for directories or files without objects, so there is no
1471 other place to do the update, and concurrent access to such inodes
1472 are protected by the inode lock.
1476 Description: resolve "_IOWR redefined" build error on SLES10
1480 Description: dump the memory debugging after all modules are unloaded to
1481 suppress false negative in conf_sanity test 39
1483 Severity : enhancement
1485 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1490 Description: fix SLES kernel versioning
1491 Details : the kernel version for our SLES 10 kernel did not include a "-"
1492 before the "smp" at the end. while this was not a problem in
1493 general, it did mean that software trying to use the kernel
1494 version to try to detect a vendor specific kernel would fail.
1495 this was most evident by the OFED build scripts.
1499 Description: Don't update lov_desc members until making sure they are valid
1500 Details : When updating lov_desc members via proc fs, need fix their
1501 validities before doing the real update.
1505 Description: don't put request into delay list while invalidate in flight.
1506 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1507 import in flight. this produce timeout for invalidate and sometimes
1508 can cause stale data.
1512 Frequency : on ppc only
1513 Description: not convert ost objects for directory because it's not exist.
1514 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1518 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1520 Severity : enhancement
1522 Description: Update to support 2.6.22.14 vanilla kernel.
1526 Frequency : rare, on recovery
1527 Description: read procfs can produce deadlock in some situation
1528 Details : Holding lprocfs lock which send rpc can produce block for destroy
1529 obd objects and this also block reconnect with -EALREADY. This
1530 isn't fix all lprocfs bugs - but make it rare.
1532 Severity : enhancement
1534 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1537 Frequency : frequent on X2 node
1539 Description: mdc_set_open_replay_data LBUG
1540 Details : Set replay data for requests that are eligible for replay.
1544 Description: lustre_mgs: operation 101 on unconnected MGS
1545 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1546 MGC, and late on MGC cannot successfully connect to MGS and a lot
1547 of the error messages complaining that MGS is not connected.
1551 Frequency : on network error
1552 Description: panic with double free request if network error
1553 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1554 but it's true only for synchronus enqueue, for async enqueue
1555 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1558 Severity : enhancement
1560 Description: client-side metadata stat-ahead during readdir(directory readahead)
1561 Details : perform client-side metadata stat-ahead when the client detects
1562 readdir and sequential stat of dir entries therein
1565 Frequency : on start mds
1567 Description: Implement get_info(last_id) in obdfilter.
1570 Frequency : occasional
1572 Description: Correctly check stale fid, not start epoch if ost not support SOM
1573 Details : open with flag O_CREATE need set old fid in op_fid3 because
1574 op_fid2 was overwritten with new generated fid, but mds can answer
1575 with one of these two fids and both is not stale. Setattr
1576 incorrectly started an epoch and assume will be called
1577 done_writing, but without SOM done_writing ever being called.
1580 Frequency : rare, depends on device drivers and load
1582 Description: MDS or OSS nodes crash due to stack overflow
1583 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1584 In some cases, in conjunction with device drivers that use a lot
1585 of stack the MDS (or possibly OSS) service threads could overflow
1586 the stack. One change which was identified to consume additional
1587 stack has been reworked to avoid the extra stack usage.
1590 Frequency : occasional
1592 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1593 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1594 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1595 oscc_has_objects and see OSC has no objests and call
1596 oscc_internal_create to resend create request.
1598 Severity : enhancement
1600 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1602 Severity : enhancement
1604 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1607 Frequency : very rare
1609 Description: Fix replay if there is an un-replied request and open
1610 Details : In some cases, older replay request will revert the
1611 mcd->mcd_last_xid on MDS which is used to record the client's
1612 latest sent request.
1614 Severity : enhancement
1616 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1618 Severity : enhancement
1620 Description: Add rhel5 support to HEAD.
1622 Serverity : enhancement
1624 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1629 Description: Don't allow skipping OSTs if index has been specified.
1630 Details : Don't allow skipping OSTs if index has been specified, make
1631 locking in internal create lots better.
1635 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1636 Details : access to bitfield in structure is always rounded to long
1637 and this produce problem with not atomic change any bit.
1641 Description: Lustre make rpms failed.
1642 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1643 builds Lustre rpms from tarball.
1646 Frequency : rare on shutdown ost
1648 Description: If llog cancel was not send before clean_exports phase, this can
1649 produce deadlock in llog code.
1650 Details : If llog thread has last reference to obd and call class_import_put
1651 this produce deadlock because llog_cleanup_commit_master wait when
1652 last llog_commit_thread exited, but this never success because was
1653 called from llog_commit_thread.
1657 Description: allow userland application know is lost one of stripes.
1658 Details : fill lvb_blocks with error code on ost and return it to
1659 application if error flag found.
1663 Description: NULL lov_tgts causing MDS oops
1664 Details : more safe checks for NULL lov_tgts for avoid oops.
1666 Severity : enhancement
1668 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1672 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1673 Details : If an OST is down the MDS will hang indefinitely in
1674 obd_statfs_rqset() waiting for the statfs data. While for
1675 MDS QOS usage of statfs, it should not stuck in waiting.
1677 Severity : enhancement
1679 Description: remote_acl support
1680 Details : Support ACL-based permission check for remote user.
1681 Support setfacl/getfacl for remote user with the utils
1682 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1683 the system "{s,g}etfacl" utils.
1685 Severity : enhancement
1687 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1689 Severity : enhancement
1691 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1695 Description: make mgs_setparam() handle fsname containing dash
1696 Details : fsname containing a dash does not work with lctl conf_param
1698 Severity : enhancement
1700 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1702 Severity : enhancement
1704 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1708 Frequency : rare, at shutdown
1709 Description: access already free / zero obd_namespace.
1710 Details : if client_disconnect_export was called without force flag set,
1711 and exist connect request in flight, this can produce access to
1712 NULL pointer (or already free pointer) when connect_interpret
1713 store ocd flags in obd_namespace.
1717 Frequency : only at startup
1718 Description: not alloc memory with spinlock held.
1719 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1720 if any spinlock held.
1722 Severity : enhancement
1724 Description: make lustre randomly fail allocating memory
1725 Details : Make lustre randomly failed allocating memory for testing purpose.
1727 Severity : enhancement
1729 Description: lost problems with lov objid file
1730 Details : Fixes some scability and access to not inited memory problems
1731 in work with lov objdid file.
1736 Description: lfs find does not continue on file error
1737 Details : Continue other files processing when a file/dir is absent.
1741 Description: Inconsistent usage of lustre_pack_reply()
1742 Details : Standardize the usage of lustre_pack_reply() such that it
1743 always generate a CERROR on failure.
1746 Frequency : occasional
1748 Description: MDS hang or stay in waiting lock
1749 Details : If client receive lock with CBPENDING flag ldlm need send lock
1750 cancel as separate rpc, to avoid situation when cancel request
1751 can't processed due all i/o threads stay in wait lock.
1755 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1759 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1763 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1767 Description: Update to RHEL4 latest kernel.
1769 Severity : enhancement
1771 Description: Build SLES10 patchless client fails
1772 Details : The configure was broken by run ./configure with
1773 --with-linux-obj=.... argument for patchless client. When the
1774 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1775 can't search header adequately. Use absolute path such as
1776 -I($LINUX)/include instead.
1780 Description: interrupt oig_wait produce painc on resend.
1781 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1782 private set, and this produce situation when rq_ptlrpcd_data not
1783 copyed to new allocated request and triggered LBUG on assert
1784 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1785 ptlrpcd set if request is changed and can be safety changed to use
1790 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1791 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1792 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1793 these macros and replace them with their difinitions instead.
1797 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1798 Details : Update which_patch & target file for SLES10 latest kernel.
1801 Description: Remove client patches from SLES 10 kernel.
1802 Details : This causes SLES 10 clients to behave as patchless clients
1803 even on a Lustre-patched (server) kernel.
1805 Severity : enhancement
1807 Description: self-adjustable client's lru lists
1808 Details : use adaptive algorithm for managing client cached locks lru
1809 lists according to current server load, other client's work
1810 pattern, memory activities, etc. Both, server and client
1811 side namespaces provide number of proc tunables for controlling
1814 Severity : enhancement
1816 Description: light-weight GSS support
1817 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1818 and reduce performance overhead.
1820 Severity : enhancement
1822 Description: Linux keyring support
1823 Details : Support using service of Linux keyring for Lustre GSS internal
1824 context refresh/cache mechanism.
1828 Description: Fix errors in lfs documentation
1829 Details : Fixes man pages
1833 Description: don't use GFP_* in generic Lustre code.
1834 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1838 Description: obdclass is limited by single OBD_ALLOC(idarray)
1839 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1843 Description: warnings with build patchless client with vanila 2.6.19 and up
1844 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1845 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1849 Frequency : Only for SLES
1850 Description: sanity_quota fail test_1
1851 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1852 file, which makes TSTID[2] inunique.
1856 Frequency : Only for SLES9
1857 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1858 Details : Update target/ChangeLog/which_patch .
1862 Frequency : Only for test_10 in sanity-quota.sh
1863 Description: a bug in quota test code
1864 Details : checking a test flag in a wrong place
1868 Frequency : Only for test_13 in sanity-quota.sh
1869 Description: a bug in quota test script
1870 Details : shouldn't check overfull allocated quota
1874 Description: jbd statistics
1875 Details : Port older jbd statistics patch for sles10
1877 Severity : enhancement
1879 Description: Add printing inode info into message about error in writepage.
1884 Description: reply_lock_interpret crash due to race with it and lock cancel.
1885 Details : Do not replay locks that are being cancelled. Do not reference
1886 locks by their address during replay, just by their handle.
1890 Frequency : When flocks are used.
1891 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1892 Details : Flock locks might destroy just granted lock if it could be merged
1893 with another existing flock, this is done in completion handler,
1894 so teach ldlm_cli_enquque_fini that this is a valid case for
1900 Description: Oops in read and write path when failing to allocate lock.
1901 Details : Check if lock allocation failed and return error back.
1905 Description: lstripe command fails for valid OST index
1906 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1907 instead of lov->desc.ld_active_tgt_count.
1911 Description: sanity.sh failed test 103
1912 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1917 Description: df doesn't work properly if diskfs blocksize != 4K
1918 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1922 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1923 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1925 Severity : enhancement
1927 Description: Adaptive timeouts
1928 Details : RPC timeouts adapt to changing server load and network
1929 conditions to reduce resend attempts and improve recovery time.
1933 Description: llapi_file_create() does not allow some changes
1934 Details : add llapi_file_open() that allows specifying the mode and
1935 open flags, and also returns an open file handle.
1939 Description: merge and cleanup kernel patches.
1940 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1944 Description: Add journal checksum support.(Kernel part)
1945 Details : The journal checksum feature adds two new flags i.e
1946 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1947 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1948 indicates that the commit block contains the checksum for
1949 the blocks described by the descriptor blocks. Now commit
1950 record can be sent to disk without waiting for descriptor
1951 blocks to be written to disk. This behavior is controlled
1952 using JBD2_FEATURE_ASYNC_COMMIT flag.
1956 Description: OSS needs mutliple precreate threads
1957 Details : Add ability to start more than one create thread per OSS.
1961 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1962 Details : execute lfs setstripe on client
1966 Description: mds_obd_create error creating tmp object
1967 Details : When the user sets quota on root, llog will be affected and can't
1968 create files and write files.
1971 Frequency : Always on ia64 patchless client, and possibly others.
1973 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1974 Details : This allows the patchless client to be loaded on architectures
1975 without this export.
1979 Description: RedHat Update kernel for RHEL5
1980 Details : Add the kernel config file for RHEL5.
1984 Description: RedHat Update kernel for RHEL5
1985 Details : Modify the kernel config file more closer RHEL5.
1989 Description: Build failure against Centos5 (RHEL5)
1990 Details : Define PAGE_SIZE when it isn't present.
1994 Description: test_7 on sanity-quota.sh can't be used on separate machines
1995 Details : add facet to handle it
1999 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
2000 Details : with NFS, the anon dentry's parent was set to itself in
2001 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
2002 corresponding dentry other than use rec->ur_name.
2004 Severity : enhancement
2006 Description: lfs setstripe enhancement
2007 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2011 Description: enable data checksumming by default
2012 Details : enable checksum by default, allow --disable-checksum
2013 configure option and "-o nochecksum" mount option. Checksums
2014 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2018 Description: lustre support for RHEL5
2019 Details : Add support for RHEL5.
2023 Description: Client eviction due to failover config
2024 Details : after a connection loss, the lustre client should attempt to
2025 reconnect to the last active server first before trying the
2026 other potential connections.
2030 Description: when mds and osts use different quota unit(32bit and 64bit),
2031 quota will be released repeatly.
2032 Details : void sending multiple quota reqs to mds, which will keep the
2033 status between the reqs.
2037 Description: osts not allocated evenly to files
2038 Details : change the condition to increase offset_idx
2041 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2043 Description: Data corruption for OSTs that are formatted larger than 2TB
2045 Details : When generating the bio request for lustre file writes the
2046 sector number would overflow a temporary variable before being
2047 used for the IO. The data reads correctly from Lustre (which
2048 will overflow in a similar manner) but other file data or
2049 filesystem metadata may be corrupted in some cases.
2053 Description: Tune the kernel for good SCSI performance.
2054 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2055 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2060 Description: rewrite ext2-derived code in obdclass/uuid.c
2061 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2062 from scratch preserving functionality.
2066 Description: "lfs find -obd UUID" prints directories
2067 Details : "lfs find -obd UUID" will return all directory names instead
2068 of just file names. It is incorrect because the directories
2069 do not reside on the OSTs.
2073 Description: use i_size_read and i_size_write in 2.6 port
2074 Details : replace inode->i_size access with i_size_read/write()
2077 Frequency : when removing large files
2079 Description: scheduling issue during removal of large Lustre files
2080 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2081 It causes scheduling issues when removing large files (17TB in the
2085 Frequency : only with liblustre clients on XT3
2087 Description: evictions taking too long
2088 Details : allow llrd to evict clients directly on OSTs
2091 Frequency : only on ppc
2093 Description: /proc/fs/lustre/devices broken on ppc
2094 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2095 We should make sure the type of 'index' is loff_t and then cast
2096 explicitly as needed below. Do not assign an explicitly cast
2100 Frequency : only for rhel5
2102 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2103 Details : Modify the target file & which_kernel.
2105 Severity : enhancement
2107 Description: omit set fsid for export NFS
2108 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2109 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2113 Frequency : Always, for kernels after 2.6.16
2114 Description: Fix warning idr_remove called for id=.. which is not allocated.
2115 Details : Last kernels save old s_dev before kill super and not allow
2116 to restore from callback - restore it before call kill_anon_super.
2120 Description: buffer overruns could theoretically occur
2121 Details : llapi_semantic_traverse() modifies the "path" argument by
2122 appending values to the end of the origin string, and a
2123 overrun may occur. Adding buffer overrun check in liblustreapi.
2127 Description: Fix error on 'ls .' at the top of the Lustre mount.
2128 Details : Don't revalidate dentry if it is a root dentry.
2132 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2133 Details : Modify vm-tunables-rhel4.patch.
2137 Description: Kernel config for 2.6.18-vanilla.
2138 Details : Modify targets/2.6-vanilla.target.in.
2139 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2140 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2141 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2142 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2146 Description: improve handling recoverable errors
2147 Details : if request processig with error which can be recoverable on server
2148 request should be resend, otherwise page released from cache and
2153 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2154 Details : Modify target file & which_patch.
2155 A flaw was found in the IA32 system call emulation provided
2156 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2157 value could be stored in the %RAX register, which could trigger an
2158 out-of-bounds system call table access. An untrusted local user
2159 could exploit this flaw to run code in the kernel
2160 (ie a root privilege escalation). (CVE-2007-4573).
2164 Description: O_DIRECT bypasses client statistics.
2165 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2166 read_ahead_stats were updated. copied the stats section from
2167 osc_send_oap_rpc() into async_internal().
2171 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2175 Description: change order of libsysio includes
2176 Details : '#include sysio.h' should always come before '#include xtio.h'
2180 Description: handle "serious error: objid * already exists" more gracefully
2181 Details : If LAST_ID value on disk is smaller than the objects existing in
2182 the O/0/d* directories, it indicates disk corruption and causes an
2183 LBUG(). If the object is 0-length, then we should use the existing
2184 object. This will help to avoid a full fsck in most cases.
2186 Severity : enhancement
2188 Description: adapt the lustre_config script to support the upgrade case
2189 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2190 server targets to 1.6 in parallel.
2194 Description: To avoid grant space > avaible space when the disk is almost
2195 full. Without this patch you might see the error "grant XXXX >
2196 available" or some LBUG about grant, when the disk is almost
2198 Details : In filter_check_grant, for non_grant cache write, we should
2199 check the left space by if (*left > ungranted + bytes), instead
2200 of (*left > ungranted), because only we are sure the left space
2201 is enough for another "bytes", then the ungrant space should be
2202 increase. In client, we should update cl_avail_grant only there
2203 is OBD_MD_FLGRANT in the reply.
2207 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2208 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2209 described in CVE-2007-4573. This problem could allow untrusted
2210 local users to gain root access.
2213 Frequency : when using O_DIRECT and quotas
2215 Description: Incorrect file ownership on O_DIRECT output files
2216 Details : block usage reported by 'lfs quota' does not take into account
2217 files that have been written with O_DIRECT.
2222 Description: touch file failed when fs is not full
2223 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2224 otherwise we can get ENOSP while fs is not full.
2228 Description: parallel lock callbacks
2229 Details : Instead of sending blocking and completion callbacks as separated
2230 requests, adding them to a set and sending in parallel.
2233 Frequency : only for Cray XT3
2234 Bugzilla : 12829/13455
2235 Description: Changing primary group doesn't change the group lustre assigns to
2237 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2238 overridden with the primary group provided by the group upcall,
2239 whereas the supplied fsgid can be trusted if it is in the list of
2240 supplementary groups returned by the group upcall.
2242 Severity : enhancement
2244 Description: Allow masking D_WARNING, D_ERROR messages from console
2245 Details : Console messages can now be disabled via lnet.printk.
2249 Description: User code with malformed file open parameter crashes client node
2250 Details : Before packing join_file req, all the related reference should be
2251 checked carefully in case some malformed flags cause fake
2252 join_file req on client.
2256 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2257 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2258 mode is equal to the granted mode. However, it should also check
2259 that LDLM_FL_CP_REQD is not set.
2263 Description: Heavy nfs access might result in deadlocks
2264 Details : After ELC code landed, it is now improper to enqueue any mds
2265 locks under och_sem, because enqueue might want to decide to
2266 cancel open locks for same inode we are holding och_sem for.
2270 Description: Client eviction while running blogbench
2271 Details : A lot of unlink operations with concurrent I/O can lead to a
2272 deadlock causing evictions. To address the problem, the number of
2273 oustanding OST_DESTROY requests is now throttled to
2274 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2275 callbacks are processed in priority.
2279 Description: enable ACLs on MDS by default
2280 Details : ACLs must be enabled on MDS by default.
2283 Frequency : PPC/PPC64 only
2285 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2286 Details : fix duplicated definitions between asm-ppc64/types.h and
2287 lustre_types.h on PPC.
2290 Frequency : PPC/PPC64 only
2292 Description: asm-ppc/segment.h does not exist
2293 Details : fix compile issue on PPC.
2297 Description: better handle error messages in extents code
2300 Frequency : RHEL4 only
2302 Description: mkfs is very slow on IA64/RHEL4
2303 Details : A performance regression has been discovered in the MPT Fusion
2304 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2305 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2306 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2308 Severity : enhancement
2310 Description: SNMP support enhancement
2311 Details : Adding total number of sampled request for an MDS node in snmp
2314 Severity : enhancement
2316 Description: Optimize ldlm waiting list processing for PR extent locks
2317 Details : When processing waiting list for read extent lock and meeting read
2318 lock that is same or wider to it that is not contended, skip
2319 processing rest of the list and immediatelly return current
2320 status of conflictness, since we are guaranteed there are no
2321 conflicting locks in the rest of the list.
2325 Description: Time out and refuse to reconnect
2326 Details : When the failover node is the primary node, it is possible
2327 to have two identical connections in imp_conn_list. We must
2328 compare not conn's pointers but NIDs, otherwise we can defeat
2329 connection throttling.
2333 Description: port llog fixes from b1_6 into HEAD
2334 Details : Port llog reference couting and some llog cleanups from b1_6
2335 (bug 10800) into HEAD, for protect from panic and access to already
2336 free llog structures.
2340 Description: Detect stride IO mode in read-ahead
2341 Details : When a client does stride read, read-ahead should detect that and
2342 read-ahead pages according to the detected stride pattern.
2346 Description: data checksumming impacts single node performance
2347 Details : add support for several checksum algorithm. Currently, only CRC32
2348 and Adler-32 are supported. The checksum type can be changed on
2349 the fly via /proc/fs/lustre/osc/*/checksum_type.
2353 Description: use adler32 for page checksums
2354 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2359 Description: build for x2 fails
2360 Details : fix compile issue on Cray systems.
2364 Description: Properly match for duplicate locks
2365 Details : Due to different lock order from skiplists code, we need to
2366 traverse entire list for now
2369 Frequency : only on PPC/SLES10
2371 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2372 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2373 be defined. Add a hack in mkfs_lustre.c to work around this compile
2378 Description: LASSERT on MDS when client holding flock lock dies
2379 Details : ldlm pool logic depends on number of granted locks equal to
2380 number of released locks which is not true for flock locks, so
2381 just exclude such locks from consideration.
2385 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2386 Details : Use fsfilt_sync() for both the whole filesystem sync and
2387 individual file sync to eliminate dangerous inode locking
2388 with I_LOCK that can lead to a deadlock.
2392 Description: performance in 1.6.3
2393 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2394 sure that 1MB requests are not fragmented by the block layer.
2396 Severity : enhancement
2398 Description: organize the server-side client stats on per-nid basis
2399 Details : Change the structure of stats under obdfilter and mds to
2407 The "uuid"s file would list the uuids of _active_ exports.
2408 And the clear entry is to clear all stats and stale nids.
2410 Severity : enhancement
2412 Description: eliminate client locks in face of contention
2413 Details : file contention detection and lockless i/o implementation
2414 for contended files.
2418 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2421 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2423 Description: MDS may lose file striping (and hence file data) in some cases
2424 Details : If there are additional extended attributes stored on the MDS,
2425 in particular ACLs, SELinux, or user attributes (if user_xattr
2426 is specified for the client mount options) then there is a risk
2427 of attribute loss. Additionally, the Lustre file striping
2428 needs to be larger than default (e.g. striped over all OSTs),
2429 and an additional attribute must be stored initially in the
2430 inode and then increase in size enough to be moved to the
2431 external attribute block (e.g. ACL growing in size) for file
2436 Description: skiplist implementation simplification
2437 Details : skiplists are used to group compatible locks on granted list
2438 that was implemented as tracking first and last lock of each
2439 lock group the patch changes that to using doubly linked lists
2443 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2444 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2445 because LASSERT on both the data supplied by a client, and the
2446 data on disk is dangerous and incorrect.
2448 Severity : enhancement
2450 Description: Slow truncate/writes to huge files at high offsets.
2451 Details : Directly associate cached pages to lock that protect those pages,
2452 this allows us to quickly find what pages to write and remove
2453 once lock callback is received.
2457 Description: more ldlm soft lockups
2458 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2459 starve other threads from the resource lock for a long time in
2460 case of long waiting queue, so change the debug level from
2461 D_OTHER to the less frequently used D_INFO.
2463 Severity : enhancement
2465 Description: add -gid, -group, -uid, -user options to lfs find
2469 Description: Hung threads in invalidate_inode_pages2_range
2470 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2471 once one is completed. As a result, some RPCs are stuck in the
2472 queue and are never sent.
2476 Description: filter threads hungs on waiting journal commit
2477 Details : Cleanup filter group llog code, then only filter group llog will
2478 be only created in the MDS/OST syncing process.
2482 Description: Procfs and llog threads access destoryed import sometimes.
2483 Details : Sync the import destoryed process with procfs and llog threads by
2484 the import refcount and semaphore.
2486 Severity : enhancement
2488 Description: openlock cache of b1_6 port to HEAD
2493 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2494 Details : If insertion of an extent fails, then discard the inode
2495 preallocation and free data blocks else it can lead to duplicate
2500 Description: don't always update ctime in ext3_xattr_set_handle()
2501 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2502 In some cases the ctime should not be updated, for example for
2503 2.0->1.8 compatibility it is necessary to delete an xattr and it
2504 should not update the ctime.
2508 Bugzilla : 15713/16362
2509 Description: Assertion in iopen_connect_dentry in 1.6.3
2510 Details : looking up an inode via iopen with the wrong generation number can
2511 populate the dcache with a disconneced dentry while the inode
2512 number is in the process of being reallocated. This causes an
2513 assertion failure in iopen since the inode's dentry list contains
2514 both a connected and disconnected dentry.
2518 Description: assertion failure in ldlm_handle2lock()
2519 Details : fix a race between class_handle_unhash() and class_handle2object()
2520 introduced in lustre 1.6.5 by bug 13622.
2525 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2526 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2531 Description: oops in sd_iostats_seq_show()
2532 Details : unloading/reloading the scsi low level driver triggers a kernel
2533 bug when trying to access the sd iostat file.
2538 Description: Kernel panics during QLogic driver reload
2539 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2540 patch, causing memory corruption.
2545 Description: journal_dev option does not work in b1_6
2546 Details : pass mount option during pre-mount.
2548 Severity : enhancement
2550 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2551 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2552 extent information of a file. It can be used to map logical blocks
2553 in a file to physical blocks in the block device.
2557 Description: LDLM soft lockups - improvement
2558 Details : It is be possible to send the lock handle along with each read
2559 or write request because the client is already doing a lock match
2560 itself so there isn't any reason the OST should have to re-do that
2564 Frequency : only on Cray X2
2566 Description: X2 build failures
2567 Details : fix build failures on Cray X2.
2571 Description: xid & resent requests
2572 Details : Initialize RPC XID from clock at startup (randomly if clock is
2575 Severity : enhancement
2577 Description: Add lustre_start utility to start or stop multiple Lustre servers
2582 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2583 Details : In case of memory pressure, list_del() can be called twice on
2584 req->rq_history_list, causing a kernel oops.
2588 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2589 Details : fix stack overflow in the distributed lock manager by defering
2590 export eviction after a failed AST to the elt thread instead of
2591 handling it in the dlm interpret routine.
2595 Description: Convert some comments to new format.
2596 Details : Update documenting comments to match doxygen conventions.
2600 Description: Grammar fixes.
2601 Details : A couple of trivial spelling fixes.
2605 Description: OSD_COUNTERS-mandatory
2606 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2607 to simplify the code.
2611 Description: simplify cmm_device freeing logic.
2612 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2616 Description: Add lockdep support to dt_object_operations locking interface.
2617 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2618 parameter indicating lock ordering. Update mdd code to use new
2623 Description: Introduce failloc constants for lockless IO tests.
2624 Details : Add two new failloc constants to test lockless IO. Only one of
2625 them in implemented---another is checked in yet to be landed
2630 Description: Add lockdep support for inode mutex.
2631 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2632 in the situations where Lustre has to lock more than one inode
2637 Description: Add optional invariants checking support.
2638 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2639 configure switch. This macro is to be used for consistency and
2640 sanity checks that are too expensive to be left in `production'
2645 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2646 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2651 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2652 Details : Use spin_lock_nested() in (the only) situation where more than
2653 one ldlm_lock is locked simultaneously. Also, fix possible
2654 dead-lock in ldlm_lock_change_resource() by enforcing particular
2659 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2660 Details : Instead of specifying each ldlm_lock call-back through separate
2661 parameter, wrap them into struct ldlm_callback_suite.
2665 Description: Kill join_lru obd method and its callers.
2666 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2667 in memory---a requirement implemented through ->o_join_lru() obd
2668 method in HEAD. Remove this method and its users.
2672 Description: Add asynchronous ldlm ENQUEUE completion handler.
2673 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2674 case that stock ldlm_completion_ast() cannot handle as it waits
2675 until lock is granted. Introduce new ldlm_completion_ast_async()
2676 for this. Also comment ldlm_completion_ast().
2680 Description: ldlm_error <-> errno conversion.
2681 Details : Add functions to map (rather arbitrary) between LDLM error codes
2682 and standard errno values. CLIO needs this to prevent LDLM specific
2683 constants from escaping ldlm and osc.
2687 Description: Kill unused ldlm_handle2lock_ns() function.
2688 Details : Kill unused ldlm_handle2lock_ns() function.
2692 Description: Add lu_ref support to ldlm_lock
2693 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2694 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2695 and ldlm_resource. LDLM interface has to be changed, because code that
2696 releases a reference on a lock, has to "know" what reference this is.
2697 In the most frequent case
2699 lock = ldlm_handle2lock(handle);
2701 LDLM_LOCK_PUT(lock);
2703 no changes are required. When any other reference (received _not_ from
2704 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2705 instead of LDLM_LOCK_PUT().
2707 Arguably, changes are pervasive, and interface requires some discipline
2708 for proper use. On the other hand, it was very instrumental in finding
2709 a few leaked lock references.
2713 Description: Add ldlm_lock_addref_try().
2714 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2715 attempts to addref a lock that might be being canceled
2720 Description: Add ldlm_weigh_callback().
2721 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2722 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2723 hard-coded `number of pages' logic.
2727 Description: Add lockdep annotations to llog code.
2728 Details : Use appropriately tagged _nested() locking calls in the places
2729 where llog takes more than one ->lgh_lock lock.
2733 Description: Add loi_kms_set().
2734 Details : Wrap kms updates into a helper function.
2738 Description: Constify instances of struct lsm_operations.
2739 Details : Constify instances of struct lsm_operations.
2743 Description: lu_conf support.
2744 Details : On a server, a file system object is uniquely identified
2745 by a fid, which is sufficient to locate and load all object
2746 state (inode). On a client, on the other hand, more data are
2747 necessary instantiate an object. Change lu_object_find() and
2748 friends to take additional `lu_conf' argument describing object.
2749 Typically this includes layout information.
2753 Description: lu_context fixes.
2754 Details : Introduce new lu_context functions that are needed on the client
2755 side, where some system threads (ptlrpcd) are shared by multiple
2756 modules, and so cannot be stopped during module shutdown.
2760 Description: Add start and stop methods to lu_device_type_operations.
2761 Details : Introduce two new methods in lu_device_type_operations, that are
2762 invoked when first instance of a given type is created and last one
2763 is destroyed respectively. This is need by CLIO.
2767 Description: Add lu_ref support to struct lu_device.
2768 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2769 track leaked references.
2773 Description: Introduce lu_kmem_descr.
2774 Details : lu_kmem_descr and its companion interface allow to create
2775 and destroy a number of kmem caches at once.
2779 Description: Fix lu_object finalization race.
2780 Details : Fix a race between lu_object_find() finding an object and its
2781 concurrent finalization. This race is (most likely) not possible
2782 on the server, but might happen on the client.
2786 Description: Introduce lu_ref interface.
2787 Details : lu_ref is a debugging module allowing to track references to
2788 a given object. It is quite cpu expensive, and has to be
2789 explicitly enabled with --enable-lu_ref. See usage description
2794 Description: Factor lu_site procfs stats into a separate function.
2795 Details : Separate lu_site stats printing code into a separate function
2796 that can be reused on a client.
2800 Description: Constify instances of struct {lu,dt,md}_device_operations.
2801 Details : Constify instances of struct {lu,dt,md}_device_operations.
2805 Description: Introduce struct md_site and move meta-data specific parts of
2806 struct lu_site here.
2807 Details : Move md-specific fields out of struct lu_site into special struct
2808 md_site, so that lu_site can be used on a client.
2812 Description: Kill mdd_lov_destroy().
2813 Details : Remove unused mdd code.
2817 Description: Add st_block checking to multistat.c.
2818 Details : Add st_block checking to multistat.c.
2822 Description: Add lu_ref support to struct obd_device.
2823 Details : Add lu_ref tracking to obd_device.
2827 Description: Kill obd_set_fail_loc().
2828 Details : Remove unused code.
2832 Description: Add special type for ptlrpc_request interpret functions.
2833 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2834 there. Actual usage will be in CLIO.
2838 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2839 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2840 doesn't work with lockdep.
2844 Description: Add rwv.c test program.
2845 Details : New testing program exercising readv(2) and writev(2) (Qian).
2849 Description: Add sendfile.c test program.
2850 Details : New testing program exercising sendfile(2) (Jay).
2854 Description: Ratelimit a message that can be very frequent.
2855 Details : Ratelimit a memory allocation failure message that can
2860 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2861 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2865 Description: Liblustre build fixes.
2866 Details : Liblustre build fixes.
2870 Description: libcfs: add cfs_{need,cond}_resched() interface.
2871 Details : libcfs: add cfs_{need,cond}_resched() definition and
2872 implementations for Linux, NT, and liblustre.
2874 Severity : enhancement
2876 Description: More exported tunables for mballoc
2877 Details : Add support for tunable preallocation window and new tunables for
2878 large/small requests
2882 Description: Detect corruption of block bitmap and checking for preallocations
2883 Details : Checks validity of on-disk block bitmap. Also it does better
2884 checking of number of applied preallocations. When corruption is
2885 found, it turns filesystem readonly to prevent further corruptions.
2889 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2890 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2891 window to 0. If it does hit cache miss, and read-pattern is still
2892 stride-io mode, does not reset the stride window, but also does not
2893 increase the stride window length in this case.
2897 Frequency : only for big-endian servers
2898 Description: Check if system is big-endian while mounting fs with extents feature
2899 Details : Mounting a filesystem with extents feature will fail on big-endian
2900 systems since ext3-based ldiskfs is not supported on big-endian
2901 systems. This can be over-riden with "bigendian_extents" mount option.
2903 Severity : enhancement
2905 Description: The root squash functionality
2906 Details : A security feature, which is to prevent users from being able
2907 to mount lustre on their desktop, run as root, and delete
2908 all of the files in the filesystem. The goal is accomplished by
2909 remapping user id (UID) and group id (GID) of the root user to
2910 a UID and GID specified by the system administartor via Lustre
2911 configuration management server (MGS). The functionality also
2912 allows to specify sets of clients for which the remapping does
2917 Description: Excessive recovery window
2918 Details : With AT enabled, the recovery window can be excessively long (6000+
2919 seconds). To address this problem, we no longer use
2920 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2921 timeout no longer depends on the service time, it is set to
2922 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2923 time via pb_service_time.
2927 Description: Watchdog triggered on MDS failover
2928 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2929 the OSTs know that the MDS "UUID" can be reused for the same export
2930 from a different NID, so we do not need to wait for the export to be
2934 Frequency : rare, only if using MMP with Linux RAID
2936 Description: MMP doesn't work with Linux RAID
2937 Details : While using HA for Lustre servers with Linux RAID, it is possible
2938 that MMP will not detect multiple mounts. To make this work we
2939 need to unplug the device queue in RAID when the MMP block is being
2940 written. Also while reading the MMP block, we should read it from
2941 disk and not the cached one.
2943 Severity : enhancement
2945 Description: open file using fid
2946 Details : A file can be opened using just its fid, like
2947 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2950 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2953 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2954 Details : add proper locking for creation of jbd_4k slab cache
2958 Description: MMP check in ext3_remount() fails without displaying any error
2959 Details : When multiple mount protection fails during remount, proper error
2962 Severity : enhancement
2964 Description: Allow stripe size to be up to 4G-64k
2965 Details : Fix math logic to allow large stripe sizes.
2969 Description: add check for >8TB ldiskfs filesystems
2970 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2971 Don't allow >8TB ldiskfs filesystems to be mounted without
2972 force_over_8tb mount option
2977 Descriptoin: OSS complains "too many blocks" and crashes
2978 Details : In filter_commitrw_write():
2979 1. lquota_chkquota();
2980 2. obdo_from_inode();
2981 3. lquota_pending_commit();
2982 "2." has changed uid and gid in this case, then caused
2983 lquota_chkquota() and lquota_pending_commit() to use
2984 different uid and gid. That is the root of the bug.
2988 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2989 Details : Detect and print out the 'stripe count = -1' case properly.
2993 Description: Out or order replies might be lost on replay
2994 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2995 request with tid smaller than one currently being added, add it
2996 to the start, not end of the list.
2998 --------------------------------------------------------------------------------
3000 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
3002 * Support for kernels:
3003 2.6.5-7.283 (SLES 9),
3004 2.6.9-55.EL (RHEL 4),
3005 2.6.16.46-0.14 (SLES 10),
3006 2.6.18.8 vanilla (kernel.org)
3007 * Client support for unpatched kernels:
3008 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3009 2.6.16 - 2.6.22 vanilla (kernel.org)
3010 * Due to recently discovered recovery problems, we do not recommend
3011 using patchless RHEL 4 clients with this or any earlier release.
3012 * Recommended e2fsprogs version: 1.39.cfs8
3013 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3014 * Starting with this release, the ldiskfs backing filesystem required
3015 by Lustre is now in its own package, lustre-ldiskfs. This package
3016 should be installed. It is versioned separately from Lustre and
3017 may be released separately in future.
3021 Description: block reactivating mgc import until all deactivates complete
3022 Details : Fix race when failing back MDT/MGS to itself (testing)
3025 Frequency : at statup only
3027 Description: mds_lov_synchronize race leads to various problems
3028 Details : simultaneous MDT->OST connections at startup can cause the
3029 sync to abort, leaving the OSC in a bad state.
3031 Severity : enhancement
3033 Description: add optional extra BUILD_VERSION info
3034 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3035 to override the lustre version.
3038 Frequency : 2.6.18 servers only
3040 Description: ll_kern_mount() doesn't release the module reference
3041 Details : The ldiskfs module reference count never drops down to 0
3042 because ll_kern_mount() doesn't release the module reference.
3047 Description: server LBUG when using old ost_num_threads parameter
3048 Details : Accept the old ost_num_threads parameter but warn that it
3049 is deprecated, and fix an off-by-one error that caused an LBUG.
3054 Description: Transient SCSI error results in persistent IO issue
3055 Details : iobuf->dr_error is not reinitialized to 0 between two
3059 Frequency : sometimes when underlying device returns I/O errors
3061 Description: OSTs not going read-only during write failures
3062 Details : OSTs are not remounted read-only when the journal commit threads
3063 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3064 instead of the ext3 wrappers.
3068 Description: poor connect scaling with increasing client count
3069 Details : Don't run filter_grant_sanity_check for more than 100 exports
3070 to improve scaling for large numbers of clients.
3073 Frequency : SLES10 only
3075 Description: sanity-quota.sh quotacheck failed: rc = -22
3076 Details : Quotas cannot be enabled on SLES10.
3079 Frequency : liblustre clients only
3081 Description: getdirentries does not give error when run on compute nodes
3082 Details : getdirentries does not fail when the size specified as an argument
3083 is too small to contain at least one entry
3085 Severity : enhancement
3087 Description: Add LNET router traceability for debug purposes
3088 Details : If a checksum failure occurs with a router as part of the
3089 IO path, the NID of the last router that forwarded the bulk data
3090 is printed so it can be identified.
3095 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3096 Details : Due to a race condition, liblustre clients were occasionally
3097 evicted incorrectly.
3099 Severity : enhancement
3101 Description: lfs setstripe use optional parameters instead of postional
3104 Severity : enhancement
3106 Description: Nanosecond timestamp support for ldiskfs
3107 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3108 resolution timestamps. There is not yet support for this at
3109 the Lustre filesystem level.
3112 Frequency : during server recovery
3114 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3115 Details : request with rq_no_resend flag not awake l_wait_event if they get
3119 Frequency : nfs export on patchless client
3121 Description: connectathon hang when test nfs export over patchless client
3122 Details : Disconnected dentry cannot be found with lookup, so we do not need
3123 to unhash it or make it invalid
3126 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3127 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3128 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3133 Description: open req refcounting wrong on reconnect
3134 Details : If reconnect happened between getting open reply from server and
3135 call to mdc_set_replay_data in ll_file_open, we will schedule
3136 replay for unreferenced request that we are about to free.
3137 Subsequent close will crash in variety of ways.
3138 Check that request is still eligible for replay in
3139 mdc_set_replay_data().
3144 Description: disable writes to filesystem when reading health_check file
3145 Details : the default for reading the health_check proc file has changed
3146 to NOT do a journal transaction and write to disk, because this
3147 can cause reads of the /proc file to hang and block HA state
3148 checking on a healthy but otherwise heavily loaded system. It
3149 is possible to return to the previous behaviour during configure
3150 with --enable-health-write.
3152 Severity : enhancement
3154 Description: 64-bit inode version
3155 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3156 to the inode. This will be required for version-based recovery.
3161 Description: MDS fails to start if a duplicate client export is detected
3162 Details : in some rare cases it was possible for a client to connect to
3163 an MDS multiple times. Upon recovery the MDS would detect this
3164 and fail during startup. Handle this more gracefully.
3166 Severity : enhancement
3168 Description: Add -o localflock option to simulate old noflock
3170 Details : This will achieve local-only flock/fcntl locks
3176 Description: log_commit_thread vs filter_destroy race leads to crash
3177 Details : Take import reference before releasing llog record semaphore
3182 Description: Wrong request locking in request set processing
3183 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3184 imp_delayed_list, in this place should be used imp_lock.
3187 Frequency : when reconnection
3189 Description: Grant Leak when osc reconnect to OST
3190 Details : When osc reconnect ost, OST(filter) should check whether it
3191 should grant more space to client by comparing fed_grant and
3192 cl_avail_grant, and return the granted space to client instead
3193 of "new granted" space, because client will call osc_init_grant
3194 to update the client grant space info.
3197 Frequency : when client reconnect to OST
3199 Description: Grant Leak when osc do resend and replay bulk write
3200 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3201 bulk write request, because the grant info while be sync between
3202 OSC and OST when reconnect, and we should ignore the grant info
3203 these of resend/replay write req.
3208 Description: Grant space more than available left space sometimes.
3209 Details : When then OST is about to be full, if two bulk writing from
3210 different clients came to OST. Accord the avaliable space of the
3211 OST, the first req should be permitted, and the second one
3212 should be denied by ENOSPC. But if the seconde arrived before
3213 the first one is committed. The OST might wrongly permit second
3214 writing, which will cause grant space > available space.
3217 Frequency : when client is evicted
3219 Description: Grant might be wrongly erased when osc is evicted by OST
3220 Details : when the import is evicted by server, it will fork another
3221 thread ptlrpc_invalidate_import_thread to invalidate the
3222 import, where the grant will be set to 0. While the original
3223 thread will update the grant it got when connecting. So if
3224 the former happened latter, the grant will be wrongly errased
3225 because of this race.
3230 Description: Checking Stale with correct fid
3231 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3232 to check whether it is stale, because sometimes, we want the
3233 enqueue happened anyway, and op_data.fid2 will not be initialized.
3235 Severity : enhancement
3237 Description: update patchless client
3238 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3241 Frequency : only with 2.4 kernel
3243 Description: random memory corruption
3244 Details : size of struct ll_inode_info is to big for union inode.u and this
3245 can be cause of random memory corruption.
3250 Description: Memory leak in recovery
3251 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3252 It should also check obd_fail before fsfilt_start, otherwise if
3253 fsfilt_start return -EROFS,(failover mds during mds recovery).
3254 then the req will return with repmsg->transno = 0 and rc = EROFS.
3255 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3256 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3257 be freed no matter whether fsfilt_commit success or not.
3260 Frequency : only with huge count clients
3262 Description: Prevents from taking the superblock lock in llap_from_page for
3264 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3265 for llap_from_page call in ll_removepage prevents from taking the
3266 superblock lock for a soon died page.
3271 Description: Not check open intent error before release open handle
3272 Details : in some rare cases, the open intent error is not checked before
3273 release open handle, which may cause
3274 ASSERTION(open_req->rq_transno != 0), because it tries to release
3275 the failed open handle.
3280 Description: Set cat log bitmap only after create log success.
3281 Details : in some rare cases, the cat log bitmap is set too early. and it
3282 should be set only after create log success.
3286 Description: Accessing a block bevice can re-enable I/O when Lustre is
3287 tearing down a device.
3288 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3293 Description: service threads may hog cpus when there are a lot of requests
3294 Details : Insert cond_resched to give other threads a chance to use some CPU
3299 Description: the cat log was not initialized in recovery
3300 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3301 unlink log on mds will not be initialized until mds post
3302 recovery. And also in mds post recovery, the unlink log will
3303 initialization will be done asynchronausly, so there will be race
3304 between add unlink log and unlink log initialization.
3308 Description: brw_stats were being printed incorrectly
3309 Details : brw_stats were being printed as log2 but all of them were not
3310 recorded as log2. Also remove some code duplication arising from
3311 filter_tally_{read,write}.
3315 Frequency : rare, only in recovery.
3316 Description: ASSERTION(req->rq_type != LI_POISON) failed
3317 Details : imp_lock should be held while iterating over imp_sending_list for
3318 prevent destroy request after get timeout in ptlrpc_queue_wait.
3322 Description: replay-single.sh test 52 fails
3323 Details : A lock's skiplist need to be cleanup when it being unlinked
3324 from its resource list.
3328 Description: Short directio read returns full requested size rather than
3330 Details : Direct I/O operations should return actual amount of bytes
3331 transferred rather than requested size.
3333 Severity : enhancement
3335 Description: metadata RPC reduction (e.g. for rm performance)
3336 Details : decrease the amount of synchronous RPC between clients and servers
3337 by canceling conflicing lock before the operation on the client
3338 and packing thier handles into the main operation RPC to server.
3340 Severity : enhancement
3342 Description: Async OSC create to avoid the blocking unnecessarily.
3343 Details : If an OST has no remaining object, system will block on the
3344 creation when it needs to create a new object on this OST. Now,
3345 ways use pre-created objects when available, instead of blocking on
3346 an empty osc while others are not empty. If we must block, we
3347 block for the shortest possible period of time.
3351 Description: improve handling recoverable errors
3352 Details : if request processig with error which can be recoverable on server
3353 request should be resend, otherwise page released from cache and
3356 Severity : enhancement
3358 Description: refine locking for avoid write wrong info into lov_objid file
3359 Details : fix possible races with add new target and write/update data in
3362 --------------------------------------------------------------------------------
3364 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3369 Frequency : on some architectures
3371 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3372 Details : Uninitialized flags sometimes cause configuration commands to
3376 Frequency : patchless clients only
3378 Description: missing __iget() symbol export
3379 Details : The __iget() symbol export is missing. To avoid the need for
3380 this on patchless clients the deathrow inode reaper is turned
3381 off, and we depend on the VM to clean up old inodes. This
3382 dependency was during via the fix for bug 12181.
3384 --------------------------------------------------------------------------------
3386 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3388 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3389 INTEROPERATE with older versions automatically. In many cases a
3390 special upgrade step is needed. Please read the
3391 user documentation before upgrading any part of a live system.
3392 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3393 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3394 * WARNING: Lustre configuration and startup changes are required with
3395 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3399 Severity : enhancement
3401 Description: MountConf
3402 Details : Lustre configuration is now managed via mkfs and mount
3403 commands instead of lmc and lconf. New obd types (MGS, MGC)
3404 are added for dynamic configuration management. See
3405 https://mail.clusterfs.com/wikis/lustre/MountConf for
3408 Severity : enhancement
3410 Description: dynamic OST addition
3411 Details : OSTs can now be added to a live filesystem
3413 Severity : enhancement
3415 Description: startup order invariance
3416 Details : MDTs and OSTs can be started in any order. Clients only
3417 require the MDT to complete startup.
3419 Severity : enhancement
3421 Description: parallel, asynchronous orphan cleanup
3422 Details : orphan cleanup is now performed in separate threads for each
3423 OST, allowing parallel non-blocking operation.
3425 Severity : enhancement
3427 Description: optimized stripe assignment
3428 Details : stripe assignments are now made based on ost space available,
3429 ost previous usage, and OSS previous usage, in order to try
3430 to optimize storage space and networking resources.
3432 Severity : enhancement
3434 Description: Permanently set tunables
3435 Details : All writable /proc/fs/lustre tunables can now be permanently
3436 set on a per-server basis, at mkfs time or on a live system.
3438 Severity : enhancement
3440 Description: Lustre message v2
3441 Details : Add lustre message format v2.
3443 Severity : enhancement
3445 Description: client OST exclusion list
3446 Details : Clients can be started with a list of OSTs that should be
3447 declared "inactive" for known non-responsive OSTs.
3451 Description: SPEC SFS validation failure on NFS v2 over lustre.
3452 Details : Changes the blocksize for regular files to be 2x RPC size,
3453 and not depend on stripe size.
3455 Severity : enhancement
3457 Description: Multiple MD RPCs in flight.
3458 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3459 To avoid overly-overloading MDS, introduce a limit on number of
3460 MDS RPCs in flight for a single client and add /proc controls
3461 to adjust this limit.
3463 Severity : enhancement
3465 Description: client read/write statistics
3466 Details : Add client read/write call usage stats for performance
3467 analysis of user processes.
3468 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3469 file access. extents_stats shows chunk size distribution.
3470 extents_stats_per_process show chunk size distribution per
3473 Severity : enhancement
3475 Description: mds statistics
3476 Details : Add detailed mds operations statistics in
3477 /proc/fs/lustre/mds/*/stats.
3481 Description: Failure of copying files with lustre special EAs.
3482 Details : Client side always return success for setxattr call for lustre
3483 special xattr (currently only "trusted.lov").
3488 Description: Refcount LNET uuids
3489 Details : The global LNET uuid list grew linearly with every startup;
3490 refcount repeated list entries instead of always adding to
3493 Severity : enhancement
3495 Description: Dynamic service threads
3496 Details : Within a small range, start extra service threads
3497 automatically when the request queue builds up.
3500 Frequency : mixed-endian client/server environments
3502 Description: mixed-endian crashes
3503 Details : The new msg_v2 system had some failures in mixed-endian
3506 Severity : enhancement
3508 Description: Easy OST removal
3509 Details : OSTs can be permanently deactivated with e.g. 'lctl
3510 conf_param lustre-OST0001.osc.active=0'
3512 Severity : enhancement
3514 Description: MGS proc entries
3515 Details : Added basic proc entries for the MGS showing what filesystems
3518 Severity : enhancement
3520 Description: provide MGS failover
3521 Details : Added config lock reacquisition after MGS server failover.
3523 Severity : enhancement
3525 Description: add Linux 2.4 support
3526 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3530 Description: a large application tries to do I/O to the same resource and dies
3531 in the middle of it.
3532 Details : Check the req->rq_arrival time after the call to
3533 ost_brw_lock_get(), but before we do anything about
3534 processing it & sending the BULK transfer request. This
3535 should help move old stale pending locks off the queue as
3536 quickly as obd_timeout.
3539 Frequency : when an incorrec