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 3.10.0-1062.9.1.el7 (RHEL7.7)
7 * Other server kernels known to build and work at some point (others may also work):
8 3.10.0-862.14.4.el7 (RHEL7.5)
9 3.10.0-957.27.2.el7 (RHEL7.6)
10 4.18.0-80.11.2.el8 (RHEL8.0)
11 4.4.120-92.70 (SLES12 SP2)
12 4.4.180-94.100 (SLES12 SP3)
13 4.4.0-131 (Ubuntu 16.04)
14 4.15.0-32 (Ubuntu 18.04)
15 vanilla linux 4.6.7 (ZFS only)
16 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
17 * Client primary unpatched kernels built and tested during release cycle:
18 3.10.0-1062.9.1.el7 (RHEL7.7)
19 4.12.14-95.29 (SLES12 SP4)
20 4.15.0-48 (Ubuntu 18.04)
21 * Other clients known to build on unpatched kernels at some point (others may also work):
22 3.10.0-862.14.4.el7 (RHEL7.5)
23 3.10.0-957.27.2.el7 (RHEL7.6)
24 4.14.0-49.13.1.el7a (RHEL7.5)
25 4.14.0-115.2.2.el7a (RHEL7.6)
26 4.18.0-80.11.2.el8 (RHEL8.0)
27 4.18.0-147.3.1.el8 (RHEL8.1)
28 4.4.120-92.70 (SLES12 SP2)
29 4.4.180-94.100 (SLES12 SP3)
30 4.4.0-131 (Ubuntu 16.04)
31 vanilla linux 4.15.0 (ZFS only)
32 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
33 * Recommended ZFS / SPL version: 0.7.13
34 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
35 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
36 stack overflow. For more information, please refer to bugzilla 17630.
37 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
38 the re-exporting nodes to be mounted with "32bitapi" mount option
39 * Note for Ubuntu 14.04.5:
40 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
41 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
43 --------------------------------------------------------------------------------
47 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
48 for currently supported client and server kernel versions.
49 * Server primary kernels built and tested during release cycle:
50 3.10.0-1062.1.1.el7 (RHEL7.7)
51 * Other server kernels known to build and work at some point (others may also work):
52 3.10.0-862.14.4.el7 (RHEL7.5)
53 3.10.0-957.27.2.el7 (RHEL7.6)
54 4.18.0-80.7.1.el8 (RHEL8.0)
55 4.4.120-92.70 (SLES12 SP2)
56 4.4.180-94.100 (SLES12 SP3)
57 4.4.0-131 (Ubuntu 16.04)
58 4.15.0-32 (Ubuntu 18.04)
59 vanilla linux 4.6.7 (ZFS only)
60 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
61 * Client primary unpatched kernels built and tested during release cycle:
62 3.10.0-1062.1.1.el7 (RHEL7.7)
63 4.12.14-95.29 (SLES12 SP4)
64 4.15.0-48 (Ubuntu 18.04)
65 * Other clients known to build on unpatched kernels at some point (others may also work):
66 3.10.0-862.14.4.el7 (RHEL7.5)
67 3.10.0-957.27.2.el7 (RHEL7.6)
68 4.14.0-49.13.1.el7a (RHEL7.5)
69 4.14.0-115.2.2.el7a (RHEL7.6)
70 4.18.0-80.7.1.el8 (RHEL8.0)
71 4.4.120-92.70 (SLES12 SP2)
72 4.4.180-94.100 (SLES12 SP3)
73 4.4.0-131 (Ubuntu 16.04)
74 vanilla linux 4.15.0 (ZFS only)
75 * Recommended e2fsprogs version: 1.45.2.wc1 or newer
76 * Recommended ZFS / SPL version: 0.7.13
77 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
78 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
79 stack overflow. For more information, please refer to bugzilla 17630.
80 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
81 the re-exporting nodes to be mounted with "32bitapi" mount option
82 * Note for Ubuntu 14.04.5:
83 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
84 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
86 --------------------------------------------------------------------------------
90 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
91 for currently supported client and server kernel versions.
92 * Server known to build on the following kernels (others may also work):
93 2.6.32-696.18.7.el6 (RHEL6.9)
94 3.10.0-862.14.4.el7 (RHEL7.5)
95 3.10.0-957.el7 (RHEL7.6)
96 4.4.120-92.70 (SLES12 SP2)
97 4.4.162-94.69 (SLES12 SP3)
98 4.4.0-131 (Ubuntu 16.04)
99 4.15.0-32 (Ubuntu 18.04)
100 vanilla linux 4.6.7 (ZFS only)
101 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
102 * Client known to build on unpatched kernels (others may also work):
103 2.6.32-696.18.7.el6 (RHEL6.9)
104 2.6.32-754.6.3.el6 (RHEL6.10)
105 3.10.0-862.14.4.el7 (RHEL7.5)
106 3.10.0-957.el7 (RHEL7.6)
107 4.14.0-49.13.1.el7a (RHEL7.5)
108 4.14.0-115.2.2.el7a (RHEL7.6)
109 4.4.120-92.70 (SLES12 SP2)
110 4.4.162-94.69 (SLES12 SP3)
111 4.4.0-131 (Ubuntu 16.04)
112 4.15.0-32 (Ubuntu 18.04)
113 vanilla linux 4.15.0 (ZFS only)
114 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
115 * Recommended ZFS / SPL version: 0.7.9
116 * Tested with ZFS / SPL version: 0.7.9
117 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
118 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
119 stack overflow. For more information, please refer to bugzilla 17630.
120 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
121 the re-exporting nodes to be mounted with "32bitapi" mount option
122 * Note for Ubuntu 14.04.5:
123 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
124 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
126 --------------------------------------------------------------------------------
128 2018-04-03 Intel Corporation
130 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
131 for currently supported client and server kernel versions.
132 * Server known to build on patched kernels:
133 2.6.32-431.29.2.el6 (RHEL6.5)
134 2.6.32-504.30.3.el6 (RHEL6.6)
135 2.6.32-573.26.1.el6 (RHEL6.7)
136 2.6.32-642.15.1.el6 (RHEL6.8)
137 2.6.32-696.18.7.el6 (RHEL6.9)
138 3.10.0-693.21.1.el7 (RHEL7.4)
139 3.0.101-0.47.71 (SLES11 SP3)
140 3.0.101-107 (SLES11 SP4)
141 3.12.74-60.64.40 (SLES12 SP1)
142 4.4.114-92.64 (SLES12 SP2)
143 4.4.114-94.11 (SLES12 SP3)
144 3.13.0-101 (Ubuntu 14.04, ZFS only)
145 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
146 4.4.0-116 (Ubuntu 16.04)
147 vanilla linux 4.6.7 (ZFS only)
148 * Client known to build on unpatched kernels:
149 2.6.32-431.29.2.el6 (RHEL6.5)
150 2.6.32-504.30.3.el6 (RHEL6.6)
151 2.6.32-573.26.1.el6 (RHEL6.7)
152 2.6.32-642.15.1.el6 (RHEL6.8)
153 2.6.32-696.18.7.el6 (RHEL6.9)
154 3.10.0-693.21.1.el7 (RHEL7.4)
155 3.0.101-0.47.71 (SLES11 SP3)
156 3.0.101-107 (SLES11 SP4)
157 3.12.74-60.64.40 (SLES12 SP1)
158 4.4.114-92.64 (SLES12 SP2)
159 4.4.114-94.11 (SLES12 SP3)
160 3.13.0-101 (Ubuntu 14.04)
161 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
162 4.4.0-116 (Ubuntu 16.04)
164 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
165 * Recommended ZFS / SPL version: 0.7.6
166 * Tested with ZFS / SPL version: 0.7.6
167 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
168 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
169 stack overflow. For more information, please refer to bugzilla 17630.
170 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
171 the re-exporting nodes to be mounted with "32bitapi" mount option
172 * Note for Ubuntu 14.04.5:
173 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
174 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
176 --------------------------------------------------------------------------------
178 2017-07-05 Intel Corporation
180 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
181 for currently supported client and server kernel versions.
182 * Server known to build on patched kernels:
183 2.6.32-431.29.2.el6 (RHEL6.5)
184 2.6.32-504.30.3.el6 (RHEL6.6)
185 2.6.32-573.26.1.el6 (RHEL6.7)
186 2.6.32-642.15.1.el6 (RHEL6.8)
187 2.6.32-696.3.1.el6 (RHEL6.9)
188 3.10.0-514.21.1.el7 (RHEL7.3)
189 3.0.101-0.47.71 (SLES11 SP3)
190 3.0.101-100 (SLES11 SP4)
191 3.12.74-60.64.40 (SLES12 SP1)
192 4.4.59-92.17 (SLES12 SP2)
193 vanilla linux 4.6.7 (ZFS only)
194 * Client known to build on unpatched kernels:
195 2.6.32-431.29.2.el6 (RHEL6.5)
196 2.6.32-504.30.3.el6 (RHEL6.6)
197 2.6.32-573.26.1.el6 (RHEL6.7)
198 2.6.32-642.15.1.el6 (RHEL6.8)
199 2.6.32-696.3.1.el6 (RHEL6.9)
200 3.10.0-514.21.1.el7 (RHEL7.3)
201 3.0.101-0.47.71 (SLES11 SP3)
202 3.0.101-100 (SLES11 SP4)
203 3.12.74-60.64.40 (SLES12 SP1)
204 4.4.59-92.17 (SLES12 SP2)
206 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
207 * Recommended ZFS / SPL version: 0.6.5.9
208 * Tested with ZFS / SPL version: 0.6.5.9
209 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
210 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
211 stack overflow. For more information, please refer to bugzilla 17630.
212 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
213 the re-exporting nodes to be mounted with "32bitapi" mount option
215 --------------------------------------------------------------------------------
217 12-07-2016 Intel Corporation
219 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
220 for currently supported client and server kernel versions.
221 * Server known to build on patched kernels:
222 2.6.32-431.29.2.el6 (RHEL6.5)
223 2.6.32-504.30.3.el6 (RHEL6.6)
224 2.6.32-573.26.1.el6 (RHEL6.7)
225 2.6.32-642.11.1.el6 (RHEL6.8)
226 3.10.0-514.el7 (RHEL7.3)
227 3.0.101-0.47.71 (SLES11 SP3)
228 3.0.101-80 (SLES11 SP4)
229 3.12.62-60.64.8 (SLES12 SP1)
230 vanilla linux 4.5.7 (ZFS only)
231 * Client known to build on unpatched kernels:
232 2.6.32-431.29.2.el6 (RHEL6.5)
233 2.6.32-504.30.3.el6 (RHEL6.6)
234 2.6.32-573.26.1.el6 (RHEL6.7)
235 2.6.32-642.11.1.el6 (RHEL6.8)
236 3.10.0-514.el7 (RHEL7.3)
237 3.0.101-0.47.71 (SLES11 SP3)
238 3.0.101-80 (SLES11 SP4)
239 3.12.62-60.64.8 (SLES12 SP1)
241 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
242 * Recommended ZFS / SPL version: 0.6.5.8
243 * Tested with ZFS / SPL version: 0.6.5.8
244 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
245 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
246 stack overflow. For more information, please refer to bugzilla 17630.
247 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
248 the re-exporting nodes to be mounted with "32bitapi" mount option
250 --------------------------------------------------------------------------------
252 02-29-2016 Intel Corporation
254 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
255 for currently supported client and server kernel versions.
256 * Server known to build on patched kernels:
257 2.6.32-431.29.2.el6 (RHEL6.5)
258 2.6.32-504.30.3.el6 (RHEL6.6)
259 2.6.32-573.12.1.el6 (RHEL6.7)
260 3.10.0-327.3.1.el7 (RHEL7.2)
261 3.0.101-0.47.71 (SLES11 SP3)
262 3.0.101-68 (SLES11 SP4)
263 vanilla linux 4.2.1 (ZFS only)
264 * Client known to build on unpatched kernels:
265 2.6.32-431.29.2.el6 (RHEL6.5)
266 2.6.32-504.30.3.el6 (RHEL6.6)
267 2.6.32-573.12.1.el6 (RHEL6.7)
268 3.10.0-327.3.1.el7 (RHEL7.2)
269 3.0.101-0.47.71 (SLES11 SP3)
270 3.0.101-68 (SLES11 SP4)
273 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
274 * Recommended ZFS / SPL version: 0.6.4.2
275 * Tested with ZFS / SPL version: 0.6.4.2
276 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
277 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
278 stack overflow. For more information, please refer to bugzilla 17630.
279 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
280 the re-exporting nodes to be mounted with "32bitapi" mount option
282 --------------------------------------------------------------------------------
284 03-10-2015 Intel Corporation
286 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
287 for currently supported client and server kernel versions.
288 * Server known to build on patched kernels:
289 2.6.32-431.29.2.el6 (RHEL6.5)
290 2.6.32-504.8.1.el6 (RHEL6.6)
291 3.0.101-0.46 (SLES11 SP3)
292 * Client known to build on unpatched kernels:
293 2.6.32-431.29.2.el6 (RHEL6.5)
294 2.6.32-504.8.1.el6 (RHEL6.6)
295 3.10.0-123.20.1.el7 (RHEL7)
296 3.0.101-0.46 (SLES11 SP3)
297 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
298 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
299 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
300 stack overflow. For more information, please refer to bugzilla 17630.
301 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
302 the re-exporting nodes to be mounted with "32bitapi" mount option
304 Severity : enhancement
306 Description: control OST-index in IDIF via ROCOMPAT flag.
307 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
308 last_rcvd file. For new formatted OST device, it will be auto set;
309 for the case of upgrading from old OST device, you can enable it
310 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
311 enabled, for new created OST-object, its IDIF-in-LMA will contain
312 the OST-index; for the existing OST-object, the OSD will convert
313 old format IDIF as new format IDIF with OST-index stored in the
314 LMA EA when accessing such OST-object or via OI scrub. Once such
315 flag is enabled, it cannot be reverted back, so the system cannot
316 be downgraded to the orignal incompatible version.
318 --------------------------------------------------------------------------------
320 07-30-2014 Intel Corporation
322 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
323 for currently supported client and server kernel versions.
324 * Server known to build on patched kernels:
325 2.6.32-431.20.3.el6 (RHEL6.5)
326 3.0.101-0.31 (SLES11 SP3)
327 * Client known to build on unpatched kernels:
328 2.6.32-431.20.3.el6 (RHEL6.5)
329 3.0.101-0.31 (SLES11 SP3)
332 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
333 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
334 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
335 stack overflow. For more information, please refer to bugzilla 17630.
336 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
337 the re-exporting nodes to be mounted with "32bitapi" mount option
339 --------------------------------------------------------------------------------
341 10-31-2013 Intel Corporation
343 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
344 * Server builds for kernels:
345 2.6.32-358.18.1.el6 (RHEL6.4)
346 * Client builds for unpatched kernels:
347 2.6.32-358.18.1.el6 (RHEL6.4)
348 3.0.92-0.8 (SLES11 SP3)
350 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
351 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
352 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
353 stack overflow. For more information, please refer to bugzilla 17630.
354 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
355 the re-exporting nodes to be mounted with "32bitapi" mount option
357 --------------------------------------------------------------------------------
359 05-30-2013 Intel Corporation
361 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
362 * Server builds for kernels:
363 2.6.32-358.6.2.el6 (RHEL6.4)
364 * Client builds for unpatched kernels:
365 2.6.32-358.6.2.el6 (RHEL6.4)
366 3.0.74-0.6.6 (SLES11 SP2)
368 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
369 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
370 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
371 stack overflow. For more information, please refer to bugzilla 17630.
372 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
373 the re-exporting nodes to be mounted with "32bitapi" mount option
375 --------------------------------------------------------------------------------
377 9-30-2012 Whamcloud, Inc.
379 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
380 * Server support for kernels:
381 2.6.32-279.5.1.el6 (RHEL6)
382 * Client support for unpatched kernels:
383 2.6.32-279.5.1.el6 (RHEL6)
385 2.6.18-238.19.1.el5 (RHEL5)
386 2.6.16.60-0.69.1 (SLES10)
387 * Recommended e2fsprogs version: 1.41.90.wc4
388 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
389 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
390 stack overflow. For more information, please refer to bugzilla 17630.
391 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
392 the re-exporting nodes to be mounted with "32bitapi" mount option
394 Severity : enhancement
396 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
398 Severity : enhancement
400 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
402 Severity : enhancement
404 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
406 Severity : enhancement
408 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
410 Severity : enhancement
412 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
414 --------------------------------------------------------------------------------
416 04-30-2012 Whamcloud, Inc.
418 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
419 * Server support for kernels:
420 2.6.32-220.4.2.el6 (RHEL6)
421 * Client support for unpatched kernels:
422 2.6.32-220.4.2.el6 (RHEL6)
424 2.6.18-238.19.1.el5 (RHEL5)
425 2.6.16.60-0.69.1 (SLES10)
426 * Recommended e2fsprogs version: 1.41.90.wc4
427 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
428 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
429 stack overflow. For more information, please refer to bugzilla 17630.
430 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
431 the re-exporting nodes to be mounted with "32bitapi" mount option
433 Severity : enhancement
435 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
437 Severity : enhancement
439 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
441 Severity : enhancement
443 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
445 Severity : enhancement
447 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
449 --------------------------------------------------------------------------------
451 09-30-2011 Whamcloud, Inc.
453 * Server support for kernels:
454 2.6.18-238.19.1.el5 (RHEL5)
455 2.6.32-131.6.1.el6 (RHEL6)
456 * Client support for unpatched kernels:
457 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
458 2.6.18-238.19.1.el5 (RHEL5)
459 2.6.32-131.6.1.el6 (RHEL6)
460 2.6.29.4-167.fc11 (FC11)
461 2.6.16.60-0.69.1 (SLES10)
463 * Recommended e2fsprogs version: 1.41.90.wc3
464 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
465 Lustre filesystem with 4K stack may cause a stack overflow. For more
466 information, please refer to bugzilla 17630.
467 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
468 mounted with "32bitapi" mount option
470 Severity : enhancement
471 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
473 Severity : enhancement
474 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
476 Severity : enhancement
477 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
480 Frequency : only with SLES10
482 Description: Use OFED "KMP" provided by Novell
483 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
484 Lustre is now built against this package. That means you need to
485 install the ofed-kmp package from Novell for the patchless client.
486 Note that the ofed-kmp that Novell ships may not exactly match the
487 kernel version but should still be compatible.
489 Severity : enhancement
491 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
492 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
494 --------------------------------------------------------------------------------
496 2010-07-15 Oracle, Inc.
498 * Server support for kernels:
499 2.6.18-164.11.1.el5 (RHEL 5)
500 2.6.18-164.11.1.0.1.el5 (OEL 5)
501 * Client support for unpatched kernels:
502 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
503 2.6.18-164.11.1.el5 (RHEL 5),
504 2.6.18-164.11.1.0.1.el5 (OEL 5)
505 2.6.16.60-0.42.8 (SLES 10),
507 2.6.29.4-167.fc11 (FC11)
508 * Recommended e2fsprogs version: 1.41.10-sun2
510 Severity : enhancement
512 Description: Distribute lfs_migrate script with lustre
513 Details : The lfs_migrate mentioned in the manual is now included in the
514 lustre tree in lustre/scripts and will distributed in lustre RPMs.
516 Severity : enhancement
518 Description: Failover nid list added to import proc file.
520 Severity : enhancement
522 Description: "som_preview" mount option required to use SOM
523 Details : The clients will need to use som_preview mount option
527 Description: Lustre does not do 1MB IOs to HW RAID
528 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
530 Severity : enhancement
532 Description: lfs quota output is not very convenient for awk/sed-parsing
533 Details : Some positions in lfs quota output table could be empty or
534 non-empty which made it hard to parse it with scripts, now
535 a dash is put instead of space where there is not supposed
540 Description: Update to OFED 1.5.1
541 Details : OFED 1.5.1 will be used in environments that don't use
542 vendor supplied OFED.
546 Description: Remove lnet. prefix from lctl params display
547 Details : Also renamed lnet.memused to lnet_memused to
552 Description: Use conf_param -d to remove permanant settings.
556 Description: Add list_param -R
557 Details : lctl list_param now supports recursive mode.
560 Bugzilla : 21829, 22312
561 Description: Fix llobdstat.
562 Details : 1. Now updating the write_bytes counter
563 2. Port script fixes from 1.8.
567 Description: decrease the usage of memory on clients.
568 Details : 1. On clients, recycle dentries and inodes unused.
569 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
574 Description: llobdstat fix and enhancement
575 Details : add a counter to set a limit to how many samples will be returned
576 fix a wildcard in the path to limit to obdfilter stats only
580 Description: lfs check only allowed for root
581 Details : Code cleanups and added a regresion test of non-root use of
586 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
587 Details : Fix hr->hr_index overload.
591 Description: Fix FIEMAP functionality.
595 Description: FC11 patchless client support added
599 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
600 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
604 Description: New acc-sm script and various test-framework enhancments.
608 Description: Previously landed patch was reverted.
612 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
616 Description: Add ldiskfs maxdirsize mount option.
620 Description: Fix mkfs.lustre support for 16TB LUNs.
624 Description: Print mmp_check_interval
625 Details : print mmp_check_interval and make it possible to abort
626 mount operation in case it takes too long.
630 Description: Add cascading_rw to lustre mpi tests.
634 Description: Store SOM data in EA.
635 Details : Also several SOM related cleanups.
639 Description: Add refcount to md_open_data
643 Description: Use refcount on lov_request_set to prevent memory corruption.
647 Description: Statahead: use parent dir's i_mutex for synchronization.
651 Description: loadgen improvements.
655 Description: Enable peer health detection in ksocklnd and ko2iblnd.
659 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
663 Description: Fix race on obd_devcie:md_stats
667 Description: Fix SLES 11 client builds.
668 Details : Resolved uninitalized pointer gcc warnings.
672 Description: Allow non-root access for "lfs check".
673 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
677 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
679 Severity : enhancement
681 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
682 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
686 Description: Sanity test_27p fails.
687 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
688 Sanity tests 27 were cleaned up and improved.
692 Description: Unify req format on client/servers
693 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
694 buffers and swabbers approach..
699 Description: drop join file stuff.
701 Severity : enhancement
703 Description: Add 2.6.27 and SLES11 (patchless client) support
707 Description: Fix in ptlrpc_expire_one_request() to print the signed time
710 Severity : enhancement
712 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
715 Severity : enhancement
717 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
719 Severity : enhancement
721 Description: correctly handle big reply message.
722 Details : send LNet event if reply is bigger than buffer and adjust this buffer
727 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
729 Severity : enhancement
731 Description: Add support for OEL5.
735 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
737 Severity : enhancement
739 Description: "weak-modules" support
740 Details : Implement "weak-modules" support which enables kernel modules
741 to be used with any kernel that implements the same kABI. In
742 order to achieve this modules are now installed in
743 /lib/modules/$(uname -r)/updates/kernel on all distributions.
747 Description: client could not reconnect to OST because of an active request.
748 Details : The client now retries to reconnect to the same server, if a
749 connect request failed with EBUSY or -EAGAIN. Test case 35b
750 conf-sanity.sh has been created.
754 Description: Don't allow make backward step on assignin osc next id.
755 Details : race between allocation next id and ll_sync thread can be cause
756 of set wrong osc next id and can be kill valid ost objects.
760 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
764 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
768 Description: Error handling in osc_statfs_interpret() has been improved.
769 Details : Check in osc_statfs_interpret() for EBADR.
773 Description: Do not send statfs() requests to OSTs disabled by administrator.
774 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
776 Severity : enhancement
778 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
780 Severity : enhancement
782 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
784 Severity : enhancement
786 Description: Enhancement for lfs(1) command to use numeric uid/gid.
790 Description: Improved cleanup procedure for conf-sanity test_46a.
794 Description: Do not start bulk transfer, if client tried to reconnect.
795 Details : Do not start bulk transfer, if client tried to reconnect,
796 but failed due to active rpcs. Check for exp_abort_active_req
797 has been implemented.
801 Description: Prevent inconsistences between linux and lustre mount structures.
802 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
803 Make the sleep interruptible.
805 Severity : enhancement
807 Description: provide server to client comms path
808 Details : server to client communications path via new LDLM_SET_INFO rpc
812 Description: truncate starts GFP_FS allocation under transaction causing deadlock
813 Details : ldiskfs_truncate calls grab_cache_page which may start page
814 allocation under an open transaction. This may lead to
815 calling prune_icache with consequent lustre reentrance.
819 Description: send correctly lsm on open replay
820 Details : MDS is trust to LSM size on replay open, but client can set wrong size
825 Description: enable client interface failover
826 Details : When a child reconnects from another NID, properly update export
827 nid hash position and ldlm reverse import.
829 Severity : enhancement
831 Description: Communicate OST degraded/readonly state via statfs to MDS
832 Details : Flags in the statfs returned from OSTs indicate whether the
833 OST is in a degraded RAID state, or if the filesystem has
834 turned read-only after a filesystem error is detected.
839 Description: don't panic if EPROTO was hit when reading symlink
840 Details : correctly handling request reference in error cases.
842 Severity : enhancement
844 Description: Add LustreNetLink, a kernel-userspace communcation path.
846 Severity : enhancement
848 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
853 Description: access to llog context before init.
854 Details : move handling CATALOGS file at osc layer and forbid access to llog
858 Frequency : rare, only when client is writing to OST on local node
860 Description: Avoid deadlock for local client writes
861 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
862 memory freeing context. This allows OST threads to set the
863 PF_MEMALLOC flag on task structures in order to allocate memory
864 from reserved pools and complete IO.
865 Use GFP_HIGHUSER for OST allocations for non-local client writes,
866 so that the OST threads generate memory pressure and allow
867 inactive pages to be reclaimed.
869 Severity : enhancement
871 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
876 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
877 Details : move ldlm namespace creation in setup phase to avoid grab
878 _lprocfs_lock with cli_sem held.
882 Description: Temporarily disable grant shrink.
883 Details : Disable the feature for debugging.
886 Frequency : only when formatting test filesystems
888 Description: Unable to run several mkfs.lustre on loop devices at the same time
889 Details : mkfs.lustre returns error 256 on the concurrent loop devices
890 formatting. The solution is to proper handle the error.
892 Severity : enhancement
894 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
896 Severity : enhancement
898 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
903 Description: resolve race between obd_disconnect and class_disconnect_exports
904 Details : if obd_disconnect will be called to already disconnected export he
905 forget release one reference and osc module can't unloaded.
907 Severity : enhancement
909 Description: Allow tuning service thread via /proc
910 Details : For each service a new
911 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
912 created that can be used to set min/max thread counts, and get the
913 current number of running threads.
918 Descriptoin: don't return error if have partially created objects for file.
919 Details : lov_update_create_set uses set->set_success as index for created
920 objects, so if some requests will be failed, they will have hole
921 at end of array and qos_shrink_lsm for allocate correct lsm.
923 Severity : enhancement
925 Description: Update OFED support to 1.4.1
930 Description: Reduce small size read RPC
931 Details : Set read-ahead limit for every file and only do read-ahead when
932 available read-ahead pages are bigger than 1M to avoid small size
935 Severity : enhancement
937 Description: move AT tunable parameters for more consistent usage
938 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
940 Severity : enhancement
942 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
943 Details : allow skip disconnected ost for send statfs request and hide error
949 Description: fix racy locking of mballoc block bitmaps causing BUG
950 Details : The locking of the mballoc buddy bitmap and the in-memory
951 block bitmap was using two different spin locks in some
952 cases. This made it possible to incorrectly access the
953 mballoc bitmap while another process was modifying it,
954 causing a sanity assertion to fail. While no on-disk corruption
955 was reported, there was some risk of this happening.
958 Frequency : rare, on llog test 6
960 Descriptoin: don't allow connect to already connected import
961 Details : allowing connect to already connected import is hide connecting problem.
966 Descriptoin: allow kill process which wait statahead result
967 Details : for some reasons 'ls' can stick in waiting result from statahead,
968 in this case need way for kill this process.
970 Severity : enhancement
972 Description: Add state history info file, enhance import info file
973 Details : Track import connection state changes in a new osc/mdc proc file;
974 add overview-type data to the osc/mdc import proc file.
976 Severity : enhancement
978 Description: MDS create should not wait for statfs RPC while holding DLM lock.
980 Severity : enhancement
982 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
987 Descriptoin: OST grant too much space to client even there are not enough space.
988 Details : Client will shrink its grant cache to OST if there are no write
989 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
990 this grant cache if there are already not enough avaible space
991 (left_space < total_clients * 32M).
994 Frequency : start MDS on uncleanly shutdowned MDS device
996 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
997 Details : stay in waiting mds<>ost recovery finished produce random bugs
998 due race between two ll_sync thread for one lov target. send
999 ACTIVATE event only if connect realy finished and import have
1003 Frequency : rare, connect and disconnect target at same time
1005 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
1006 Details : don't call obd_disconnect under lov_lock. this long time
1007 operation and can block ptlrpcd which answer to connect request.
1012 Descriptoin: don't lose wakeup for imp_recovery_waitq
1013 Details : recover_import_no_retry or invalidate_import and import_close can
1014 both sleep on imp_recovery_waitq, but we was send only one wakeup
1018 Frequency : always with long access acl
1020 Descriptoin: mds can't pack reply with long acl.
1021 Details : mds don't control size of acl but they limited by reint/getattr
1024 Severity : enhancement
1026 Description: Update to SLES10 kernel-2.6.16.60-0.33.
1028 Severity : enhancement
1030 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
1033 Frequency : start MDS on uncleanly shutdowned MDS device
1035 Descriptoin: aborting recovery hang on MDS
1036 Details : don't throttle destroy RPCs for the MDT.
1039 Frequency : on remount
1041 Description: external journal device not working after the remount
1042 Details : clear dev_rdonly flag for external journal devices in
1048 Description: shutdown vs evict race
1049 Details : client_disconnect_export vs connect request race.
1050 if client will evicted at this time - we start invalidate
1051 thread without referece to import and import can be freed
1055 Frequency : rare, need acl's on inode.
1057 Description: client can't handle ost additional correctly
1058 Details : if ost was added after client connected to mds client can have
1059 hit lnet_try_match_md ... to big messages to wide striped files.
1060 in this case need teach client to handle config events about add
1061 lov target and update client max ea size at that event.
1063 Severity : enhancement
1065 Description: Changelogs
1066 Details : Changelogs are a lightweight mechanism to track filesystem
1067 metadata and namespace changes. The changelog is recorded
1068 permanently on the MDTs, and is periodically "consumed" / purged
1069 when records are no longer needed.
1071 Severity : enhancement
1073 Description: compact fld format with extents
1074 Details : Store range of seq rather than every seq in FLD. Seq
1075 controller update FLD rather than clients. In Case of CMD, mdt0
1076 has FLD, all other metadata server act as non persistent proxy
1077 for FLD queries and cache fld entries in fld cache.
1082 Description: don't skip ost target if they assigned to file
1083 Details : Drop slow OSCs if we can, but not for requested start idx.
1084 This means "if OSC is slow and it is not the requested
1085 start OST, then it can be skipped, otherwise skip it only
1086 if it is inactive/recovering/out-of-space.
1090 Description: more cleanup in mds_lov
1091 Details : not send LOV EA under replay, we can't know about they size at this
1092 time. Don't allow client connect to mds before any ost connected,
1093 for avoid problems with LOV EA size and returning EIO to client.
1095 Severity : enhancement
1097 Description: Interoperability at server side (Disk interoperability)
1099 Severity : enhancement
1101 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1103 Severity : enhancement
1105 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1107 Severity : enhancement
1109 Description: New client IO stack (CLIO).
1111 Severity : enhancement
1113 Description: Commit on sharing. Eliminate inter-client dependencies between
1114 uncommitted transactions by doing transaction commits.
1115 Thereby clients may recovery independently.
1118 Frequency : Create a symlink file with a very long name
1120 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1121 Details : If there is no extra space in the request for early cancels,
1122 ldlm_req_handles_avail() returns 0 instead of a negative value.
1124 Severity : enhancement
1126 Description: Add /proc entry for import status
1127 Details : The mdc, osc, and mgc import directories now have
1128 an import directory that contains useful import data for debugging
1129 connection problems.
1131 Severity : enhancement
1133 Description: Re-disable certain /proc logging
1134 Details : Enable and disable client's offset_stats, extents_stats and
1135 extents_stats_per_process stats logging on the fly.
1138 Frequency : Only on FC kernels 2.6.22+
1140 Description: oops in statahead
1141 Details : Do not drop reference count for the dentry from VFS when lookup,
1142 VFS will do that by itself.
1144 Severity : enhancement
1146 Description: Generic /proc file permissions
1147 Details : Set /Proc file permissions in a more generic way to enable non-
1148 root users operate on some /proc files.
1152 Description: Hitting mdc_commit_close() ASSERTION
1153 Details : Properly handle request reference release in
1154 ll_release_openhandle().
1158 Description: quota recovery deadlock during mds failover
1159 Details : This patch includes att18982, att18236, att18237 in bz14840.
1161 1. fix osts hang when mds does failover with quotaon
1162 2. prevent watchdog storm when osts threads wait for the
1167 Frequency : only patchless client
1168 Description: add workaround for race between add/remove dentry from hash
1170 Severity : enhancement
1172 Description: Allow OST glimpses to return PW locks
1176 Description: LBUG when llog conf file is full
1177 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1181 Description: Prevent import from entering FULL state when server in recovery
1185 Description: service mount cannot take device name with ":"
1186 Details : Only when device name contains ":/" will mount treat it as
1192 Description: replace ptlrpcd with the statahead thread to interpret the async
1193 statahead RPC callback
1197 Frequency : on recovery
1198 Description: I/O failures after umount during fail back
1199 Details : if client reconnected to restarted server we need join to recovery
1200 instead of find server handler is changed and process self
1201 eviction with cancel all locks.
1203 Severity : enhancement
1205 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1207 Severity : enhancement
1209 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1211 Severity : enhancement
1213 Description: Upcall on Lustre log has been dumped
1214 Details : Allow for a user mode script to be called once a Lustre log has
1215 been dumped. It passes the filename of the dumped log to the
1216 script, the location of the script can be specified via
1217 /proc/sys/lnet/debug_log_upcall.
1222 Description: avoid idr_remove called for id which is not allocated.
1223 Details : Move assigment s_dev for clustered nfs to end of initialization,
1224 to avoid problem with error handling.
1229 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1230 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1231 into CONN_USED_HASH and this prodice warning when put connection
1232 again in unused hash.
1235 Severity : enhancement
1237 Description: File striping can now be set to use an arbitrary pool of OSTs.
1239 Severity : enhancement
1241 Description: Export bytes_read/bytes_write count on OSC/OST.
1245 Description: Early reply size mismatch, MGC loses connection
1246 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1247 the connect flags are properly negotiated.
1252 Description: quotas are not honored with O_DIRECT
1253 Details : all writes with the flag O_DIRECT will use grants which leads to
1254 this problem. Now using OBD_BRW_SYNC to guard this.
1258 Description: add quota statistics
1259 Details : 1. sort out quota proc entries and proc code.
1260 2. add quota statistics
1262 Severity : enhancement
1264 Description: enable quota support for HEAD.
1268 Description: Properly propagate oinfo flags from lov to osc for statfs
1269 Details : restore missing copy oi_flags to lov requests.
1271 Severity : enhancement
1273 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1274 : l_getgroups(8), lst(8), routerstat(8)
1275 Details : included man pages for llobdstat(8), llstat(8),
1276 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1278 Severity : enhancement
1280 Description: configure's --enable-quota should check the
1281 : kernel .config for CONFIG_QUOTA
1282 Details : configure is terminated if --enable-quota is passed but
1283 : no quota support is in kernel
1287 Description: Remove portals compatibility
1288 Details : Remove portals compatibility, not interoperable with releases
1293 Description: Resolve device initialization race
1294 Details : Prevent proc handler from accessing devices added to the
1295 obd_devs array but yet be intialized.
1297 Severity : enhancement
1299 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1301 Severity : enhancement
1303 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1308 Description: Using wrong pointer in osc_brw_prep_request
1309 Details : Access to array[-1] can produce panic if kernel compiled with
1310 CONFIG_PAGE_ALLOC enabled
1314 Description: Client runs out of low memory
1315 Details : Consider only lowmem when counting initial number of llap pages
1319 Description: *optional* service tags registration
1320 Details : if the "service tags" package is installed on a Lustre node
1321 When the filesystem is mounted, a local-node service tag will
1322 be created. See http://inventory.sun.com/ for more information
1323 about the Service Tags asset management system.
1327 Description: Kernel BUG tries to release flock
1328 Details : Lustre does not destroy flock lock before last reference goes
1329 away. So always drop flock locks when client is evicted and
1330 perform unlock regardless of successfulness of speaking to MDS.
1334 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1338 Description: sanity test 65a fails if stripecount of -1 is set
1339 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1344 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1345 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1348 Severity : enhancement
1350 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1354 Description: do not process already freed flock
1355 Details : flock can possibly be freed by another thread before it reaches
1356 to ldlm_flock_completion_ast.
1360 Description: LBUG during stress test
1361 Details : Need properly lock accesses the flock deadlock detection list.
1365 Description: oops in page fault handler
1366 Details : kernel page fault handler can return two special 'pages' in error
1367 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1371 Description: timeout with invalidate import.
1372 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1373 should be handled by ptlrpcd. This produce long age waiting and
1374 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1376 Severity : enhancement
1378 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1382 Description: enable MGS and MDT services start separately
1383 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1384 a co-located MGS without starting the MGS, which is a complement
1385 to 'nosvc' mount option.
1389 Frequency : after recovery
1390 Description: precreate to many object's after del orphan.
1391 Details : del orphan st in oscc last_id == next_id and this triger growing
1392 count of precreated objects. Set flag LOW to skip increase count
1393 of precreated objects.
1397 Frequency : rare, on clear nid stats
1398 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1399 Details : when clean nid stats sometimes try destroy live entry,
1400 and this produce panic in free.
1404 Description: Stack overflow during MDS log replay
1405 ease stack pressure by using a thread dealing llog_process.
1409 Description: wait until IO finished before start new when do lock cancel.
1410 Details : VM protocol want old IO finished before start new, in this case
1411 need wait until PG_writeback is cleared until check dirty flag and
1412 call writepages in lock cancel callback.
1414 Severity : enhancement
1416 Description: using special macro for print time and cleanup in includes.
1420 Description: mds_mfd_close() ASSERTION(rc == 0)
1421 Details : In mds_mfd_close(), we need protect inode's writecount change
1422 within its orphan write semaphore to prevent possible races.
1426 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1430 Frequency : rare, on shutdown ost
1431 Description: don't hit live lock with umount ost.
1432 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1433 use shrink_dcache_sb instead.
1437 Description: don't panic with use echo client
1438 Details : echo client pass NULL as client nid pointer and this produce null
1439 pointer dereference.
1443 Description: fix build on ppc32
1444 Details : compile code with -m64 flag produce wrong object file for ppc32.
1448 Description: add message levels for liblustreapi
1452 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1453 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1454 will result in an -EAGAIN and in the exit call path we call
1455 alloc_rr() which will with increasing aggressiveness attempt to
1456 aquire precreated objects on the minimum number of required OSCs.
1460 Description: Use old size assignment to avoid deadlock
1461 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1462 the scheduling while holding a spinlock. We do not need locking
1463 for size in ll_update_inode() because size is only updated from
1464 the MDS for directories or files without objects, so there is no
1465 other place to do the update, and concurrent access to such inodes
1466 are protected by the inode lock.
1470 Description: resolve "_IOWR redefined" build error on SLES10
1474 Description: dump the memory debugging after all modules are unloaded to
1475 suppress false negative in conf_sanity test 39
1477 Severity : enhancement
1479 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1484 Description: fix SLES kernel versioning
1485 Details : the kernel version for our SLES 10 kernel did not include a "-"
1486 before the "smp" at the end. while this was not a problem in
1487 general, it did mean that software trying to use the kernel
1488 version to try to detect a vendor specific kernel would fail.
1489 this was most evident by the OFED build scripts.
1493 Description: Don't update lov_desc members until making sure they are valid
1494 Details : When updating lov_desc members via proc fs, need fix their
1495 validities before doing the real update.
1499 Description: don't put request into delay list while invalidate in flight.
1500 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1501 import in flight. this produce timeout for invalidate and sometimes
1502 can cause stale data.
1506 Frequency : on ppc only
1507 Description: not convert ost objects for directory because it's not exist.
1508 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1512 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1514 Severity : enhancement
1516 Description: Update to support 2.6.22.14 vanilla kernel.
1520 Frequency : rare, on recovery
1521 Description: read procfs can produce deadlock in some situation
1522 Details : Holding lprocfs lock which send rpc can produce block for destroy
1523 obd objects and this also block reconnect with -EALREADY. This
1524 isn't fix all lprocfs bugs - but make it rare.
1526 Severity : enhancement
1528 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1531 Frequency : frequent on X2 node
1533 Description: mdc_set_open_replay_data LBUG
1534 Details : Set replay data for requests that are eligible for replay.
1538 Description: lustre_mgs: operation 101 on unconnected MGS
1539 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1540 MGC, and late on MGC cannot successfully connect to MGS and a lot
1541 of the error messages complaining that MGS is not connected.
1545 Frequency : on network error
1546 Description: panic with double free request if network error
1547 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1548 but it's true only for synchronus enqueue, for async enqueue
1549 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1552 Severity : enhancement
1554 Description: client-side metadata stat-ahead during readdir(directory readahead)
1555 Details : perform client-side metadata stat-ahead when the client detects
1556 readdir and sequential stat of dir entries therein
1559 Frequency : on start mds
1561 Description: Implement get_info(last_id) in obdfilter.
1564 Frequency : occasional
1566 Description: Correctly check stale fid, not start epoch if ost not support SOM
1567 Details : open with flag O_CREATE need set old fid in op_fid3 because
1568 op_fid2 was overwritten with new generated fid, but mds can answer
1569 with one of these two fids and both is not stale. Setattr
1570 incorrectly started an epoch and assume will be called
1571 done_writing, but without SOM done_writing ever being called.
1574 Frequency : rare, depends on device drivers and load
1576 Description: MDS or OSS nodes crash due to stack overflow
1577 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1578 In some cases, in conjunction with device drivers that use a lot
1579 of stack the MDS (or possibly OSS) service threads could overflow
1580 the stack. One change which was identified to consume additional
1581 stack has been reworked to avoid the extra stack usage.
1584 Frequency : occasional
1586 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1587 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1588 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1589 oscc_has_objects and see OSC has no objests and call
1590 oscc_internal_create to resend create request.
1592 Severity : enhancement
1594 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1596 Severity : enhancement
1598 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1601 Frequency : very rare
1603 Description: Fix replay if there is an un-replied request and open
1604 Details : In some cases, older replay request will revert the
1605 mcd->mcd_last_xid on MDS which is used to record the client's
1606 latest sent request.
1608 Severity : enhancement
1610 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1612 Severity : enhancement
1614 Description: Add rhel5 support to HEAD.
1616 Serverity : enhancement
1618 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1623 Description: Don't allow skipping OSTs if index has been specified.
1624 Details : Don't allow skipping OSTs if index has been specified, make
1625 locking in internal create lots better.
1629 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1630 Details : access to bitfield in structure is always rounded to long
1631 and this produce problem with not atomic change any bit.
1635 Description: Lustre make rpms failed.
1636 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1637 builds Lustre rpms from tarball.
1640 Frequency : rare on shutdown ost
1642 Description: If llog cancel was not send before clean_exports phase, this can
1643 produce deadlock in llog code.
1644 Details : If llog thread has last reference to obd and call class_import_put
1645 this produce deadlock because llog_cleanup_commit_master wait when
1646 last llog_commit_thread exited, but this never success because was
1647 called from llog_commit_thread.
1651 Description: allow userland application know is lost one of stripes.
1652 Details : fill lvb_blocks with error code on ost and return it to
1653 application if error flag found.
1657 Description: NULL lov_tgts causing MDS oops
1658 Details : more safe checks for NULL lov_tgts for avoid oops.
1660 Severity : enhancement
1662 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1666 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1667 Details : If an OST is down the MDS will hang indefinitely in
1668 obd_statfs_rqset() waiting for the statfs data. While for
1669 MDS QOS usage of statfs, it should not stuck in waiting.
1671 Severity : enhancement
1673 Description: remote_acl support
1674 Details : Support ACL-based permission check for remote user.
1675 Support setfacl/getfacl for remote user with the utils
1676 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1677 the system "{s,g}etfacl" utils.
1679 Severity : enhancement
1681 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1683 Severity : enhancement
1685 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1689 Description: make mgs_setparam() handle fsname containing dash
1690 Details : fsname containing a dash does not work with lctl conf_param
1692 Severity : enhancement
1694 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1696 Severity : enhancement
1698 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1702 Frequency : rare, at shutdown
1703 Description: access already free / zero obd_namespace.
1704 Details : if client_disconnect_export was called without force flag set,
1705 and exist connect request in flight, this can produce access to
1706 NULL pointer (or already free pointer) when connect_interpret
1707 store ocd flags in obd_namespace.
1711 Frequency : only at startup
1712 Description: not alloc memory with spinlock held.
1713 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1714 if any spinlock held.
1716 Severity : enhancement
1718 Description: make lustre randomly fail allocating memory
1719 Details : Make lustre randomly failed allocating memory for testing purpose.
1721 Severity : enhancement
1723 Description: lost problems with lov objid file
1724 Details : Fixes some scability and access to not inited memory problems
1725 in work with lov objdid file.
1730 Description: lfs find does not continue on file error
1731 Details : Continue other files processing when a file/dir is absent.
1735 Description: Inconsistent usage of lustre_pack_reply()
1736 Details : Standardize the usage of lustre_pack_reply() such that it
1737 always generate a CERROR on failure.
1740 Frequency : occasional
1742 Description: MDS hang or stay in waiting lock
1743 Details : If client receive lock with CBPENDING flag ldlm need send lock
1744 cancel as separate rpc, to avoid situation when cancel request
1745 can't processed due all i/o threads stay in wait lock.
1749 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1753 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1757 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1761 Description: Update to RHEL4 latest kernel.
1763 Severity : enhancement
1765 Description: Build SLES10 patchless client fails
1766 Details : The configure was broken by run ./configure with
1767 --with-linux-obj=.... argument for patchless client. When the
1768 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1769 can't search header adequately. Use absolute path such as
1770 -I($LINUX)/include instead.
1774 Description: interrupt oig_wait produce painc on resend.
1775 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1776 private set, and this produce situation when rq_ptlrpcd_data not
1777 copyed to new allocated request and triggered LBUG on assert
1778 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1779 ptlrpcd set if request is changed and can be safety changed to use
1784 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1785 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1786 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1787 these macros and replace them with their difinitions instead.
1791 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1792 Details : Update which_patch & target file for SLES10 latest kernel.
1795 Description: Remove client patches from SLES 10 kernel.
1796 Details : This causes SLES 10 clients to behave as patchless clients
1797 even on a Lustre-patched (server) kernel.
1799 Severity : enhancement
1801 Description: self-adjustable client's lru lists
1802 Details : use adaptive algorithm for managing client cached locks lru
1803 lists according to current server load, other client's work
1804 pattern, memory activities, etc. Both, server and client
1805 side namespaces provide number of proc tunables for controlling
1808 Severity : enhancement
1810 Description: light-weight GSS support
1811 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1812 and reduce performance overhead.
1814 Severity : enhancement
1816 Description: Linux keyring support
1817 Details : Support using service of Linux keyring for Lustre GSS internal
1818 context refresh/cache mechanism.
1822 Description: Fix errors in lfs documentation
1823 Details : Fixes man pages
1827 Description: don't use GFP_* in generic Lustre code.
1828 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1832 Description: obdclass is limited by single OBD_ALLOC(idarray)
1833 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1837 Description: warnings with build patchless client with vanila 2.6.19 and up
1838 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1839 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1843 Frequency : Only for SLES
1844 Description: sanity_quota fail test_1
1845 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1846 file, which makes TSTID[2] inunique.
1850 Frequency : Only for SLES9
1851 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1852 Details : Update target/ChangeLog/which_patch .
1856 Frequency : Only for test_10 in sanity-quota.sh
1857 Description: a bug in quota test code
1858 Details : checking a test flag in a wrong place
1862 Frequency : Only for test_13 in sanity-quota.sh
1863 Description: a bug in quota test script
1864 Details : shouldn't check overfull allocated quota
1868 Description: jbd statistics
1869 Details : Port older jbd statistics patch for sles10
1871 Severity : enhancement
1873 Description: Add printing inode info into message about error in writepage.
1878 Description: reply_lock_interpret crash due to race with it and lock cancel.
1879 Details : Do not replay locks that are being cancelled. Do not reference
1880 locks by their address during replay, just by their handle.
1884 Frequency : When flocks are used.
1885 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1886 Details : Flock locks might destroy just granted lock if it could be merged
1887 with another existing flock, this is done in completion handler,
1888 so teach ldlm_cli_enquque_fini that this is a valid case for
1894 Description: Oops in read and write path when failing to allocate lock.
1895 Details : Check if lock allocation failed and return error back.
1899 Description: lstripe command fails for valid OST index
1900 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1901 instead of lov->desc.ld_active_tgt_count.
1905 Description: sanity.sh failed test 103
1906 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1911 Description: df doesn't work properly if diskfs blocksize != 4K
1912 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1916 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1917 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1919 Severity : enhancement
1921 Description: Adaptive timeouts
1922 Details : RPC timeouts adapt to changing server load and network
1923 conditions to reduce resend attempts and improve recovery time.
1927 Description: llapi_file_create() does not allow some changes
1928 Details : add llapi_file_open() that allows specifying the mode and
1929 open flags, and also returns an open file handle.
1933 Description: merge and cleanup kernel patches.
1934 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1938 Description: Add journal checksum support.(Kernel part)
1939 Details : The journal checksum feature adds two new flags i.e
1940 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1941 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1942 indicates that the commit block contains the checksum for
1943 the blocks described by the descriptor blocks. Now commit
1944 record can be sent to disk without waiting for descriptor
1945 blocks to be written to disk. This behavior is controlled
1946 using JBD2_FEATURE_ASYNC_COMMIT flag.
1950 Description: OSS needs mutliple precreate threads
1951 Details : Add ability to start more than one create thread per OSS.
1955 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1956 Details : execute lfs setstripe on client
1960 Description: mds_obd_create error creating tmp object
1961 Details : When the user sets quota on root, llog will be affected and can't
1962 create files and write files.
1965 Frequency : Always on ia64 patchless client, and possibly others.
1967 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1968 Details : This allows the patchless client to be loaded on architectures
1969 without this export.
1973 Description: RedHat Update kernel for RHEL5
1974 Details : Add the kernel config file for RHEL5.
1978 Description: RedHat Update kernel for RHEL5
1979 Details : Modify the kernel config file more closer RHEL5.
1983 Description: Build failure against Centos5 (RHEL5)
1984 Details : Define PAGE_SIZE when it isn't present.
1988 Description: test_7 on sanity-quota.sh can't be used on separate machines
1989 Details : add facet to handle it
1993 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
1994 Details : with NFS, the anon dentry's parent was set to itself in
1995 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
1996 corresponding dentry other than use rec->ur_name.
1998 Severity : enhancement
2000 Description: lfs setstripe enhancement
2001 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
2005 Description: enable data checksumming by default
2006 Details : enable checksum by default, allow --disable-checksum
2007 configure option and "-o nochecksum" mount option. Checksums
2008 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
2012 Description: lustre support for RHEL5
2013 Details : Add support for RHEL5.
2017 Description: Client eviction due to failover config
2018 Details : after a connection loss, the lustre client should attempt to
2019 reconnect to the last active server first before trying the
2020 other potential connections.
2024 Description: when mds and osts use different quota unit(32bit and 64bit),
2025 quota will be released repeatly.
2026 Details : void sending multiple quota reqs to mds, which will keep the
2027 status between the reqs.
2031 Description: osts not allocated evenly to files
2032 Details : change the condition to increase offset_idx
2035 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
2037 Description: Data corruption for OSTs that are formatted larger than 2TB
2039 Details : When generating the bio request for lustre file writes the
2040 sector number would overflow a temporary variable before being
2041 used for the IO. The data reads correctly from Lustre (which
2042 will overflow in a similar manner) but other file data or
2043 filesystem metadata may be corrupted in some cases.
2047 Description: Tune the kernel for good SCSI performance.
2048 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2049 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2054 Description: rewrite ext2-derived code in obdclass/uuid.c
2055 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2056 from scratch preserving functionality.
2060 Description: "lfs find -obd UUID" prints directories
2061 Details : "lfs find -obd UUID" will return all directory names instead
2062 of just file names. It is incorrect because the directories
2063 do not reside on the OSTs.
2067 Description: use i_size_read and i_size_write in 2.6 port
2068 Details : replace inode->i_size access with i_size_read/write()
2071 Frequency : when removing large files
2073 Description: scheduling issue during removal of large Lustre files
2074 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2075 It causes scheduling issues when removing large files (17TB in the
2079 Frequency : only with liblustre clients on XT3
2081 Description: evictions taking too long
2082 Details : allow llrd to evict clients directly on OSTs
2085 Frequency : only on ppc
2087 Description: /proc/fs/lustre/devices broken on ppc
2088 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2089 We should make sure the type of 'index' is loff_t and then cast
2090 explicitly as needed below. Do not assign an explicitly cast
2094 Frequency : only for rhel5
2096 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2097 Details : Modify the target file & which_kernel.
2099 Severity : enhancement
2101 Description: omit set fsid for export NFS
2102 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2103 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2107 Frequency : Always, for kernels after 2.6.16
2108 Description: Fix warning idr_remove called for id=.. which is not allocated.
2109 Details : Last kernels save old s_dev before kill super and not allow
2110 to restore from callback - restore it before call kill_anon_super.
2114 Description: buffer overruns could theoretically occur
2115 Details : llapi_semantic_traverse() modifies the "path" argument by
2116 appending values to the end of the origin string, and a
2117 overrun may occur. Adding buffer overrun check in liblustreapi.
2121 Description: Fix error on 'ls .' at the top of the Lustre mount.
2122 Details : Don't revalidate dentry if it is a root dentry.
2126 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2127 Details : Modify vm-tunables-rhel4.patch.
2131 Description: Kernel config for 2.6.18-vanilla.
2132 Details : Modify targets/2.6-vanilla.target.in.
2133 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2134 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2135 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2136 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2140 Description: improve handling recoverable errors
2141 Details : if request processig with error which can be recoverable on server
2142 request should be resend, otherwise page released from cache and
2147 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2148 Details : Modify target file & which_patch.
2149 A flaw was found in the IA32 system call emulation provided
2150 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2151 value could be stored in the %RAX register, which could trigger an
2152 out-of-bounds system call table access. An untrusted local user
2153 could exploit this flaw to run code in the kernel
2154 (ie a root privilege escalation). (CVE-2007-4573).
2158 Description: O_DIRECT bypasses client statistics.
2159 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2160 read_ahead_stats were updated. copied the stats section from
2161 osc_send_oap_rpc() into async_internal().
2165 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2169 Description: change order of libsysio includes
2170 Details : '#include sysio.h' should always come before '#include xtio.h'
2174 Description: handle "serious error: objid * already exists" more gracefully
2175 Details : If LAST_ID value on disk is smaller than the objects existing in
2176 the O/0/d* directories, it indicates disk corruption and causes an
2177 LBUG(). If the object is 0-length, then we should use the existing
2178 object. This will help to avoid a full fsck in most cases.
2180 Severity : enhancement
2182 Description: adapt the lustre_config script to support the upgrade case
2183 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2184 server targets to 1.6 in parallel.
2188 Description: To avoid grant space > avaible space when the disk is almost
2189 full. Without this patch you might see the error "grant XXXX >
2190 available" or some LBUG about grant, when the disk is almost
2192 Details : In filter_check_grant, for non_grant cache write, we should
2193 check the left space by if (*left > ungranted + bytes), instead
2194 of (*left > ungranted), because only we are sure the left space
2195 is enough for another "bytes", then the ungrant space should be
2196 increase. In client, we should update cl_avail_grant only there
2197 is OBD_MD_FLGRANT in the reply.
2201 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2202 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2203 described in CVE-2007-4573. This problem could allow untrusted
2204 local users to gain root access.
2207 Frequency : when using O_DIRECT and quotas
2209 Description: Incorrect file ownership on O_DIRECT output files
2210 Details : block usage reported by 'lfs quota' does not take into account
2211 files that have been written with O_DIRECT.
2216 Description: touch file failed when fs is not full
2217 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2218 otherwise we can get ENOSP while fs is not full.
2222 Description: parallel lock callbacks
2223 Details : Instead of sending blocking and completion callbacks as separated
2224 requests, adding them to a set and sending in parallel.
2227 Frequency : only for Cray XT3
2228 Bugzilla : 12829/13455
2229 Description: Changing primary group doesn't change the group lustre assigns to
2231 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2232 overridden with the primary group provided by the group upcall,
2233 whereas the supplied fsgid can be trusted if it is in the list of
2234 supplementary groups returned by the group upcall.
2236 Severity : enhancement
2238 Description: Allow masking D_WARNING, D_ERROR messages from console
2239 Details : Console messages can now be disabled via lnet.printk.
2243 Description: User code with malformed file open parameter crashes client node
2244 Details : Before packing join_file req, all the related reference should be
2245 checked carefully in case some malformed flags cause fake
2246 join_file req on client.
2250 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2251 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2252 mode is equal to the granted mode. However, it should also check
2253 that LDLM_FL_CP_REQD is not set.
2257 Description: Heavy nfs access might result in deadlocks
2258 Details : After ELC code landed, it is now improper to enqueue any mds
2259 locks under och_sem, because enqueue might want to decide to
2260 cancel open locks for same inode we are holding och_sem for.
2264 Description: Client eviction while running blogbench
2265 Details : A lot of unlink operations with concurrent I/O can lead to a
2266 deadlock causing evictions. To address the problem, the number of
2267 oustanding OST_DESTROY requests is now throttled to
2268 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2269 callbacks are processed in priority.
2273 Description: enable ACLs on MDS by default
2274 Details : ACLs must be enabled on MDS by default.
2277 Frequency : PPC/PPC64 only
2279 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2280 Details : fix duplicated definitions between asm-ppc64/types.h and
2281 lustre_types.h on PPC.
2284 Frequency : PPC/PPC64 only
2286 Description: asm-ppc/segment.h does not exist
2287 Details : fix compile issue on PPC.
2291 Description: better handle error messages in extents code
2294 Frequency : RHEL4 only
2296 Description: mkfs is very slow on IA64/RHEL4
2297 Details : A performance regression has been discovered in the MPT Fusion
2298 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2299 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2300 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2302 Severity : enhancement
2304 Description: SNMP support enhancement
2305 Details : Adding total number of sampled request for an MDS node in snmp
2308 Severity : enhancement
2310 Description: Optimize ldlm waiting list processing for PR extent locks
2311 Details : When processing waiting list for read extent lock and meeting read
2312 lock that is same or wider to it that is not contended, skip
2313 processing rest of the list and immediatelly return current
2314 status of conflictness, since we are guaranteed there are no
2315 conflicting locks in the rest of the list.
2319 Description: Time out and refuse to reconnect
2320 Details : When the failover node is the primary node, it is possible
2321 to have two identical connections in imp_conn_list. We must
2322 compare not conn's pointers but NIDs, otherwise we can defeat
2323 connection throttling.
2327 Description: port llog fixes from b1_6 into HEAD
2328 Details : Port llog reference couting and some llog cleanups from b1_6
2329 (bug 10800) into HEAD, for protect from panic and access to already
2330 free llog structures.
2334 Description: Detect stride IO mode in read-ahead
2335 Details : When a client does stride read, read-ahead should detect that and
2336 read-ahead pages according to the detected stride pattern.
2340 Description: data checksumming impacts single node performance
2341 Details : add support for several checksum algorithm. Currently, only CRC32
2342 and Adler-32 are supported. The checksum type can be changed on
2343 the fly via /proc/fs/lustre/osc/*/checksum_type.
2347 Description: use adler32 for page checksums
2348 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2353 Description: build for x2 fails
2354 Details : fix compile issue on Cray systems.
2358 Description: Properly match for duplicate locks
2359 Details : Due to different lock order from skiplists code, we need to
2360 traverse entire list for now
2363 Frequency : only on PPC/SLES10
2365 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2366 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2367 be defined. Add a hack in mkfs_lustre.c to work around this compile
2372 Description: LASSERT on MDS when client holding flock lock dies
2373 Details : ldlm pool logic depends on number of granted locks equal to
2374 number of released locks which is not true for flock locks, so
2375 just exclude such locks from consideration.
2379 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2380 Details : Use fsfilt_sync() for both the whole filesystem sync and
2381 individual file sync to eliminate dangerous inode locking
2382 with I_LOCK that can lead to a deadlock.
2386 Description: performance in 1.6.3
2387 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2388 sure that 1MB requests are not fragmented by the block layer.
2390 Severity : enhancement
2392 Description: organize the server-side client stats on per-nid basis
2393 Details : Change the structure of stats under obdfilter and mds to
2401 The "uuid"s file would list the uuids of _active_ exports.
2402 And the clear entry is to clear all stats and stale nids.
2404 Severity : enhancement
2406 Description: eliminate client locks in face of contention
2407 Details : file contention detection and lockless i/o implementation
2408 for contended files.
2412 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2415 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2417 Description: MDS may lose file striping (and hence file data) in some cases
2418 Details : If there are additional extended attributes stored on the MDS,
2419 in particular ACLs, SELinux, or user attributes (if user_xattr
2420 is specified for the client mount options) then there is a risk
2421 of attribute loss. Additionally, the Lustre file striping
2422 needs to be larger than default (e.g. striped over all OSTs),
2423 and an additional attribute must be stored initially in the
2424 inode and then increase in size enough to be moved to the
2425 external attribute block (e.g. ACL growing in size) for file
2430 Description: skiplist implementation simplification
2431 Details : skiplists are used to group compatible locks on granted list
2432 that was implemented as tracking first and last lock of each
2433 lock group the patch changes that to using doubly linked lists
2437 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2438 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2439 because LASSERT on both the data supplied by a client, and the
2440 data on disk is dangerous and incorrect.
2442 Severity : enhancement
2444 Description: Slow truncate/writes to huge files at high offsets.
2445 Details : Directly associate cached pages to lock that protect those pages,
2446 this allows us to quickly find what pages to write and remove
2447 once lock callback is received.
2451 Description: more ldlm soft lockups
2452 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2453 starve other threads from the resource lock for a long time in
2454 case of long waiting queue, so change the debug level from
2455 D_OTHER to the less frequently used D_INFO.
2457 Severity : enhancement
2459 Description: add -gid, -group, -uid, -user options to lfs find
2463 Description: Hung threads in invalidate_inode_pages2_range
2464 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2465 once one is completed. As a result, some RPCs are stuck in the
2466 queue and are never sent.
2470 Description: filter threads hungs on waiting journal commit
2471 Details : Cleanup filter group llog code, then only filter group llog will
2472 be only created in the MDS/OST syncing process.
2476 Description: Procfs and llog threads access destoryed import sometimes.
2477 Details : Sync the import destoryed process with procfs and llog threads by
2478 the import refcount and semaphore.
2480 Severity : enhancement
2482 Description: openlock cache of b1_6 port to HEAD
2487 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2488 Details : If insertion of an extent fails, then discard the inode
2489 preallocation and free data blocks else it can lead to duplicate
2494 Description: don't always update ctime in ext3_xattr_set_handle()
2495 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2496 In some cases the ctime should not be updated, for example for
2497 2.0->1.8 compatibility it is necessary to delete an xattr and it
2498 should not update the ctime.
2502 Bugzilla : 15713/16362
2503 Description: Assertion in iopen_connect_dentry in 1.6.3
2504 Details : looking up an inode via iopen with the wrong generation number can
2505 populate the dcache with a disconneced dentry while the inode
2506 number is in the process of being reallocated. This causes an
2507 assertion failure in iopen since the inode's dentry list contains
2508 both a connected and disconnected dentry.
2512 Description: assertion failure in ldlm_handle2lock()
2513 Details : fix a race between class_handle_unhash() and class_handle2object()
2514 introduced in lustre 1.6.5 by bug 13622.
2519 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2520 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2525 Description: oops in sd_iostats_seq_show()
2526 Details : unloading/reloading the scsi low level driver triggers a kernel
2527 bug when trying to access the sd iostat file.
2532 Description: Kernel panics during QLogic driver reload
2533 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2534 patch, causing memory corruption.
2539 Description: journal_dev option does not work in b1_6
2540 Details : pass mount option during pre-mount.
2542 Severity : enhancement
2544 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2545 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2546 extent information of a file. It can be used to map logical blocks
2547 in a file to physical blocks in the block device.
2551 Description: LDLM soft lockups - improvement
2552 Details : It is be possible to send the lock handle along with each read
2553 or write request because the client is already doing a lock match
2554 itself so there isn't any reason the OST should have to re-do that
2558 Frequency : only on Cray X2
2560 Description: X2 build failures
2561 Details : fix build failures on Cray X2.
2565 Description: xid & resent requests
2566 Details : Initialize RPC XID from clock at startup (randomly if clock is
2569 Severity : enhancement
2571 Description: Add lustre_start utility to start or stop multiple Lustre servers
2576 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2577 Details : In case of memory pressure, list_del() can be called twice on
2578 req->rq_history_list, causing a kernel oops.
2582 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2583 Details : fix stack overflow in the distributed lock manager by defering
2584 export eviction after a failed AST to the elt thread instead of
2585 handling it in the dlm interpret routine.
2589 Description: Convert some comments to new format.
2590 Details : Update documenting comments to match doxygen conventions.
2594 Description: Grammar fixes.
2595 Details : A couple of trivial spelling fixes.
2599 Description: OSD_COUNTERS-mandatory
2600 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2601 to simplify the code.
2605 Description: simplify cmm_device freeing logic.
2606 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2610 Description: Add lockdep support to dt_object_operations locking interface.
2611 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2612 parameter indicating lock ordering. Update mdd code to use new
2617 Description: Introduce failloc constants for lockless IO tests.
2618 Details : Add two new failloc constants to test lockless IO. Only one of
2619 them in implemented---another is checked in yet to be landed
2624 Description: Add lockdep support for inode mutex.
2625 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2626 in the situations where Lustre has to lock more than one inode
2631 Description: Add optional invariants checking support.
2632 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2633 configure switch. This macro is to be used for consistency and
2634 sanity checks that are too expensive to be left in `production'
2639 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2640 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2645 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2646 Details : Use spin_lock_nested() in (the only) situation where more than
2647 one ldlm_lock is locked simultaneously. Also, fix possible
2648 dead-lock in ldlm_lock_change_resource() by enforcing particular
2653 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2654 Details : Instead of specifying each ldlm_lock call-back through separate
2655 parameter, wrap them into struct ldlm_callback_suite.
2659 Description: Kill join_lru obd method and its callers.
2660 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2661 in memory---a requirement implemented through ->o_join_lru() obd
2662 method in HEAD. Remove this method and its users.
2666 Description: Add asynchronous ldlm ENQUEUE completion handler.
2667 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2668 case that stock ldlm_completion_ast() cannot handle as it waits
2669 until lock is granted. Introduce new ldlm_completion_ast_async()
2670 for this. Also comment ldlm_completion_ast().
2674 Description: ldlm_error <-> errno conversion.
2675 Details : Add functions to map (rather arbitrary) between LDLM error codes
2676 and standard errno values. CLIO needs this to prevent LDLM specific
2677 constants from escaping ldlm and osc.
2681 Description: Kill unused ldlm_handle2lock_ns() function.
2682 Details : Kill unused ldlm_handle2lock_ns() function.
2686 Description: Add lu_ref support to ldlm_lock
2687 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2688 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2689 and ldlm_resource. LDLM interface has to be changed, because code that
2690 releases a reference on a lock, has to "know" what reference this is.
2691 In the most frequent case
2693 lock = ldlm_handle2lock(handle);
2695 LDLM_LOCK_PUT(lock);
2697 no changes are required. When any other reference (received _not_ from
2698 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2699 instead of LDLM_LOCK_PUT().
2701 Arguably, changes are pervasive, and interface requires some discipline
2702 for proper use. On the other hand, it was very instrumental in finding
2703 a few leaked lock references.
2707 Description: Add ldlm_lock_addref_try().
2708 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2709 attempts to addref a lock that might be being canceled
2714 Description: Add ldlm_weigh_callback().
2715 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2716 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2717 hard-coded `number of pages' logic.
2721 Description: Add lockdep annotations to llog code.
2722 Details : Use appropriately tagged _nested() locking calls in the places
2723 where llog takes more than one ->lgh_lock lock.
2727 Description: Add loi_kms_set().
2728 Details : Wrap kms updates into a helper function.
2732 Description: Constify instances of struct lsm_operations.
2733 Details : Constify instances of struct lsm_operations.
2737 Description: lu_conf support.
2738 Details : On a server, a file system object is uniquely identified
2739 by a fid, which is sufficient to locate and load all object
2740 state (inode). On a client, on the other hand, more data are
2741 necessary instantiate an object. Change lu_object_find() and
2742 friends to take additional `lu_conf' argument describing object.
2743 Typically this includes layout information.
2747 Description: lu_context fixes.
2748 Details : Introduce new lu_context functions that are needed on the client
2749 side, where some system threads (ptlrpcd) are shared by multiple
2750 modules, and so cannot be stopped during module shutdown.
2754 Description: Add start and stop methods to lu_device_type_operations.
2755 Details : Introduce two new methods in lu_device_type_operations, that are
2756 invoked when first instance of a given type is created and last one
2757 is destroyed respectively. This is need by CLIO.
2761 Description: Add lu_ref support to struct lu_device.
2762 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2763 track leaked references.
2767 Description: Introduce lu_kmem_descr.
2768 Details : lu_kmem_descr and its companion interface allow to create
2769 and destroy a number of kmem caches at once.
2773 Description: Fix lu_object finalization race.
2774 Details : Fix a race between lu_object_find() finding an object and its
2775 concurrent finalization. This race is (most likely) not possible
2776 on the server, but might happen on the client.
2780 Description: Introduce lu_ref interface.
2781 Details : lu_ref is a debugging module allowing to track references to
2782 a given object. It is quite cpu expensive, and has to be
2783 explicitly enabled with --enable-lu_ref. See usage description
2788 Description: Factor lu_site procfs stats into a separate function.
2789 Details : Separate lu_site stats printing code into a separate function
2790 that can be reused on a client.
2794 Description: Constify instances of struct {lu,dt,md}_device_operations.
2795 Details : Constify instances of struct {lu,dt,md}_device_operations.
2799 Description: Introduce struct md_site and move meta-data specific parts of
2800 struct lu_site here.
2801 Details : Move md-specific fields out of struct lu_site into special struct
2802 md_site, so that lu_site can be used on a client.
2806 Description: Kill mdd_lov_destroy().
2807 Details : Remove unused mdd code.
2811 Description: Add st_block checking to multistat.c.
2812 Details : Add st_block checking to multistat.c.
2816 Description: Add lu_ref support to struct obd_device.
2817 Details : Add lu_ref tracking to obd_device.
2821 Description: Kill obd_set_fail_loc().
2822 Details : Remove unused code.
2826 Description: Add special type for ptlrpc_request interpret functions.
2827 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2828 there. Actual usage will be in CLIO.
2832 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2833 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2834 doesn't work with lockdep.
2838 Description: Add rwv.c test program.
2839 Details : New testing program exercising readv(2) and writev(2) (Qian).
2843 Description: Add sendfile.c test program.
2844 Details : New testing program exercising sendfile(2) (Jay).
2848 Description: Ratelimit a message that can be very frequent.
2849 Details : Ratelimit a memory allocation failure message that can
2854 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2855 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2859 Description: Liblustre build fixes.
2860 Details : Liblustre build fixes.
2864 Description: libcfs: add cfs_{need,cond}_resched() interface.
2865 Details : libcfs: add cfs_{need,cond}_resched() definition and
2866 implementations for Linux, NT, and liblustre.
2868 Severity : enhancement
2870 Description: More exported tunables for mballoc
2871 Details : Add support for tunable preallocation window and new tunables for
2872 large/small requests
2876 Description: Detect corruption of block bitmap and checking for preallocations
2877 Details : Checks validity of on-disk block bitmap. Also it does better
2878 checking of number of applied preallocations. When corruption is
2879 found, it turns filesystem readonly to prevent further corruptions.
2883 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2884 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2885 window to 0. If it does hit cache miss, and read-pattern is still
2886 stride-io mode, does not reset the stride window, but also does not
2887 increase the stride window length in this case.
2891 Frequency : only for big-endian servers
2892 Description: Check if system is big-endian while mounting fs with extents feature
2893 Details : Mounting a filesystem with extents feature will fail on big-endian
2894 systems since ext3-based ldiskfs is not supported on big-endian
2895 systems. This can be over-riden with "bigendian_extents" mount option.
2897 Severity : enhancement
2899 Description: The root squash functionality
2900 Details : A security feature, which is to prevent users from being able
2901 to mount lustre on their desktop, run as root, and delete
2902 all of the files in the filesystem. The goal is accomplished by
2903 remapping user id (UID) and group id (GID) of the root user to
2904 a UID and GID specified by the system administartor via Lustre
2905 configuration management server (MGS). The functionality also
2906 allows to specify sets of clients for which the remapping does
2911 Description: Excessive recovery window
2912 Details : With AT enabled, the recovery window can be excessively long (6000+
2913 seconds). To address this problem, we no longer use
2914 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2915 timeout no longer depends on the service time, it is set to
2916 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2917 time via pb_service_time.
2921 Description: Watchdog triggered on MDS failover
2922 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2923 the OSTs know that the MDS "UUID" can be reused for the same export
2924 from a different NID, so we do not need to wait for the export to be
2928 Frequency : rare, only if using MMP with Linux RAID
2930 Description: MMP doesn't work with Linux RAID
2931 Details : While using HA for Lustre servers with Linux RAID, it is possible
2932 that MMP will not detect multiple mounts. To make this work we
2933 need to unplug the device queue in RAID when the MMP block is being
2934 written. Also while reading the MMP block, we should read it from
2935 disk and not the cached one.
2937 Severity : enhancement
2939 Description: open file using fid
2940 Details : A file can be opened using just its fid, like
2941 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2944 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2947 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2948 Details : add proper locking for creation of jbd_4k slab cache
2952 Description: MMP check in ext3_remount() fails without displaying any error
2953 Details : When multiple mount protection fails during remount, proper error
2956 Severity : enhancement
2958 Description: Allow stripe size to be up to 4G-64k
2959 Details : Fix math logic to allow large stripe sizes.
2963 Description: add check for >8TB ldiskfs filesystems
2964 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2965 Don't allow >8TB ldiskfs filesystems to be mounted without
2966 force_over_8tb mount option
2971 Descriptoin: OSS complains "too many blocks" and crashes
2972 Details : In filter_commitrw_write():
2973 1. lquota_chkquota();
2974 2. obdo_from_inode();
2975 3. lquota_pending_commit();
2976 "2." has changed uid and gid in this case, then caused
2977 lquota_chkquota() and lquota_pending_commit() to use
2978 different uid and gid. That is the root of the bug.
2982 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2983 Details : Detect and print out the 'stripe count = -1' case properly.
2987 Description: Out or order replies might be lost on replay
2988 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2989 request with tid smaller than one currently being added, add it
2990 to the start, not end of the list.
2992 --------------------------------------------------------------------------------
2994 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
2996 * Support for kernels:
2997 2.6.5-7.283 (SLES 9),
2998 2.6.9-55.EL (RHEL 4),
2999 2.6.16.46-0.14 (SLES 10),
3000 2.6.18.8 vanilla (kernel.org)
3001 * Client support for unpatched kernels:
3002 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
3003 2.6.16 - 2.6.22 vanilla (kernel.org)
3004 * Due to recently discovered recovery problems, we do not recommend
3005 using patchless RHEL 4 clients with this or any earlier release.
3006 * Recommended e2fsprogs version: 1.39.cfs8
3007 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
3008 * Starting with this release, the ldiskfs backing filesystem required
3009 by Lustre is now in its own package, lustre-ldiskfs. This package
3010 should be installed. It is versioned separately from Lustre and
3011 may be released separately in future.
3015 Description: block reactivating mgc import until all deactivates complete
3016 Details : Fix race when failing back MDT/MGS to itself (testing)
3019 Frequency : at statup only
3021 Description: mds_lov_synchronize race leads to various problems
3022 Details : simultaneous MDT->OST connections at startup can cause the
3023 sync to abort, leaving the OSC in a bad state.
3025 Severity : enhancement
3027 Description: add optional extra BUILD_VERSION info
3028 Details : add a new environment variable (namely LUSTRE_VERS) which allows
3029 to override the lustre version.
3032 Frequency : 2.6.18 servers only
3034 Description: ll_kern_mount() doesn't release the module reference
3035 Details : The ldiskfs module reference count never drops down to 0
3036 because ll_kern_mount() doesn't release the module reference.
3041 Description: server LBUG when using old ost_num_threads parameter
3042 Details : Accept the old ost_num_threads parameter but warn that it
3043 is deprecated, and fix an off-by-one error that caused an LBUG.
3048 Description: Transient SCSI error results in persistent IO issue
3049 Details : iobuf->dr_error is not reinitialized to 0 between two
3053 Frequency : sometimes when underlying device returns I/O errors
3055 Description: OSTs not going read-only during write failures
3056 Details : OSTs are not remounted read-only when the journal commit threads
3057 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3058 instead of the ext3 wrappers.
3062 Description: poor connect scaling with increasing client count
3063 Details : Don't run filter_grant_sanity_check for more than 100 exports
3064 to improve scaling for large numbers of clients.
3067 Frequency : SLES10 only
3069 Description: sanity-quota.sh quotacheck failed: rc = -22
3070 Details : Quotas cannot be enabled on SLES10.
3073 Frequency : liblustre clients only
3075 Description: getdirentries does not give error when run on compute nodes
3076 Details : getdirentries does not fail when the size specified as an argument
3077 is too small to contain at least one entry
3079 Severity : enhancement
3081 Description: Add LNET router traceability for debug purposes
3082 Details : If a checksum failure occurs with a router as part of the
3083 IO path, the NID of the last router that forwarded the bulk data
3084 is printed so it can be identified.
3089 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3090 Details : Due to a race condition, liblustre clients were occasionally
3091 evicted incorrectly.
3093 Severity : enhancement
3095 Description: lfs setstripe use optional parameters instead of postional
3098 Severity : enhancement
3100 Description: Nanosecond timestamp support for ldiskfs
3101 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3102 resolution timestamps. There is not yet support for this at
3103 the Lustre filesystem level.
3106 Frequency : during server recovery
3108 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3109 Details : request with rq_no_resend flag not awake l_wait_event if they get
3113 Frequency : nfs export on patchless client
3115 Description: connectathon hang when test nfs export over patchless client
3116 Details : Disconnected dentry cannot be found with lookup, so we do not need
3117 to unhash it or make it invalid
3120 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3121 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3122 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3127 Description: open req refcounting wrong on reconnect
3128 Details : If reconnect happened between getting open reply from server and
3129 call to mdc_set_replay_data in ll_file_open, we will schedule
3130 replay for unreferenced request that we are about to free.
3131 Subsequent close will crash in variety of ways.
3132 Check that request is still eligible for replay in
3133 mdc_set_replay_data().
3138 Description: disable writes to filesystem when reading health_check file
3139 Details : the default for reading the health_check proc file has changed
3140 to NOT do a journal transaction and write to disk, because this
3141 can cause reads of the /proc file to hang and block HA state
3142 checking on a healthy but otherwise heavily loaded system. It
3143 is possible to return to the previous behaviour during configure
3144 with --enable-health-write.
3146 Severity : enhancement
3148 Description: 64-bit inode version
3149 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3150 to the inode. This will be required for version-based recovery.
3155 Description: MDS fails to start if a duplicate client export is detected
3156 Details : in some rare cases it was possible for a client to connect to
3157 an MDS multiple times. Upon recovery the MDS would detect this
3158 and fail during startup. Handle this more gracefully.
3160 Severity : enhancement
3162 Description: Add -o localflock option to simulate old noflock
3164 Details : This will achieve local-only flock/fcntl locks
3170 Description: log_commit_thread vs filter_destroy race leads to crash
3171 Details : Take import reference before releasing llog record semaphore
3176 Description: Wrong request locking in request set processing
3177 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3178 imp_delayed_list, in this place should be used imp_lock.
3181 Frequency : when reconnection
3183 Description: Grant Leak when osc reconnect to OST
3184 Details : When osc reconnect ost, OST(filter) should check whether it
3185 should grant more space to client by comparing fed_grant and
3186 cl_avail_grant, and return the granted space to client instead
3187 of "new granted" space, because client will call osc_init_grant
3188 to update the client grant space info.
3191 Frequency : when client reconnect to OST
3193 Description: Grant Leak when osc do resend and replay bulk write
3194 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3195 bulk write request, because the grant info while be sync between
3196 OSC and OST when reconnect, and we should ignore the grant info
3197 these of resend/replay write req.
3202 Description: Grant space more than available left space sometimes.
3203 Details : When then OST is about to be full, if two bulk writing from
3204 different clients came to OST. Accord the avaliable space of the
3205 OST, the first req should be permitted, and the second one
3206 should be denied by ENOSPC. But if the seconde arrived before
3207 the first one is committed. The OST might wrongly permit second
3208 writing, which will cause grant space > available space.
3211 Frequency : when client is evicted
3213 Description: Grant might be wrongly erased when osc is evicted by OST
3214 Details : when the import is evicted by server, it will fork another
3215 thread ptlrpc_invalidate_import_thread to invalidate the
3216 import, where the grant will be set to 0. While the original
3217 thread will update the grant it got when connecting. So if
3218 the former happened latter, the grant will be wrongly errased
3219 because of this race.
3224 Description: Checking Stale with correct fid
3225 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3226 to check whether it is stale, because sometimes, we want the
3227 enqueue happened anyway, and op_data.fid2 will not be initialized.
3229 Severity : enhancement
3231 Description: update patchless client
3232 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3235 Frequency : only with 2.4 kernel
3237 Description: random memory corruption
3238 Details : size of struct ll_inode_info is to big for union inode.u and this
3239 can be cause of random memory corruption.
3244 Description: Memory leak in recovery
3245 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3246 It should also check obd_fail before fsfilt_start, otherwise if
3247 fsfilt_start return -EROFS,(failover mds during mds recovery).
3248 then the req will return with repmsg->transno = 0 and rc = EROFS.
3249 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3250 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3251 be freed no matter whether fsfilt_commit success or not.
3254 Frequency : only with huge count clients
3256 Description: Prevents from taking the superblock lock in llap_from_page for
3258 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3259 for llap_from_page call in ll_removepage prevents from taking the
3260 superblock lock for a soon died page.
3265 Description: Not check open intent error before release open handle
3266 Details : in some rare cases, the open intent error is not checked before
3267 release open handle, which may cause
3268 ASSERTION(open_req->rq_transno != 0), because it tries to release
3269 the failed open handle.
3274 Description: Set cat log bitmap only after create log success.
3275 Details : in some rare cases, the cat log bitmap is set too early. and it
3276 should be set only after create log success.
3280 Description: Accessing a block bevice can re-enable I/O when Lustre is
3281 tearing down a device.
3282 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3287 Description: service threads may hog cpus when there are a lot of requests
3288 Details : Insert cond_resched to give other threads a chance to use some CPU
3293 Description: the cat log was not initialized in recovery
3294 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3295 unlink log on mds will not be initialized until mds post
3296 recovery. And also in mds post recovery, the unlink log will
3297 initialization will be done asynchronausly, so there will be race
3298 between add unlink log and unlink log initialization.
3302 Description: brw_stats were being printed incorrectly
3303 Details : brw_stats were being printed as log2 but all of them were not
3304 recorded as log2. Also remove some code duplication arising from
3305 filter_tally_{read,write}.
3309 Frequency : rare, only in recovery.
3310 Description: ASSERTION(req->rq_type != LI_POISON) failed
3311 Details : imp_lock should be held while iterating over imp_sending_list for
3312 prevent destroy request after get timeout in ptlrpc_queue_wait.
3316 Description: replay-single.sh test 52 fails
3317 Details : A lock's skiplist need to be cleanup when it being unlinked
3318 from its resource list.
3322 Description: Short directio read returns full requested size rather than
3324 Details : Direct I/O operations should return actual amount of bytes
3325 transferred rather than requested size.
3327 Severity : enhancement
3329 Description: metadata RPC reduction (e.g. for rm performance)
3330 Details : decrease the amount of synchronous RPC between clients and servers
3331 by canceling conflicing lock before the operation on the client
3332 and packing thier handles into the main operation RPC to server.
3334 Severity : enhancement
3336 Description: Async OSC create to avoid the blocking unnecessarily.
3337 Details : If an OST has no remaining object, system will block on the
3338 creation when it needs to create a new object on this OST. Now,
3339 ways use pre-created objects when available, instead of blocking on
3340 an empty osc while others are not empty. If we must block, we
3341 block for the shortest possible period of time.
3345 Description: improve handling recoverable errors
3346 Details : if request processig with error which can be recoverable on server
3347 request should be resend, otherwise page released from cache and
3350 Severity : enhancement
3352 Description: refine locking for avoid write wrong info into lov_objid file
3353 Details : fix possible races with add new target and write/update data in
3356 --------------------------------------------------------------------------------
3358 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3363 Frequency : on some architectures
3365 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3366 Details : Uninitialized flags sometimes cause configuration commands to
3370 Frequency : patchless clients only
3372 Description: missing __iget() symbol export
3373 Details : The __iget() symbol export is missing. To avoid the need for
3374 this on patchless clients the deathrow inode reaper is turned
3375 off, and we depend on the VM to clean up old inodes. This
3376 dependency was during via the fix for bug 12181.
3378 --------------------------------------------------------------------------------
3380 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3382 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3383 INTEROPERATE with older versions automatically. In many cases a
3384 special upgrade step is needed. Please read the
3385 user documentation before upgrading any part of a live system.
3386 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3387 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3388 * WARNING: Lustre configuration and startup changes are required with
3389 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3393 Severity : enhancement
3395 Description: MountConf
3396 Details : Lustre configuration is now managed via mkfs and mount
3397 commands instead of lmc and lconf. New obd types (MGS, MGC)
3398 are added for dynamic configuration management. See
3399 https://mail.clusterfs.com/wikis/lustre/MountConf for
3402 Severity : enhancement
3404 Description: dynamic OST addition
3405 Details : OSTs can now be added to a live filesystem
3407 Severity : enhancement
3409 Description: startup order invariance
3410 Details : MDTs and OSTs can be started in any order. Clients only
3411 require the MDT to complete startup.
3413 Severity : enhancement
3415 Description: parallel, asynchronous orphan cleanup
3416 Details : orphan cleanup is now performed in separate threads for each
3417 OST, allowing parallel non-blocking operation.
3419 Severity : enhancement
3421 Description: optimized stripe assignment
3422 Details : stripe assignments are now made based on ost space available,
3423 ost previous usage, and OSS previous usage, in order to try
3424 to optimize storage space and networking resources.
3426 Severity : enhancement
3428 Description: Permanently set tunables
3429 Details : All writable /proc/fs/lustre tunables can now be permanently
3430 set on a per-server basis, at mkfs time or on a live system.
3432 Severity : enhancement
3434 Description: Lustre message v2
3435 Details : Add lustre message format v2.
3437 Severity : enhancement
3439 Description: client OST exclusion list
3440 Details : Clients can be started with a list of OSTs that should be
3441 declared "inactive" for known non-responsive OSTs.
3445 Description: SPEC SFS validation failure on NFS v2 over lustre.
3446 Details : Changes the blocksize for regular files to be 2x RPC size,
3447 and not depend on stripe size.
3449 Severity : enhancement
3451 Description: Multiple MD RPCs in flight.
3452 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3453 To avoid overly-overloading MDS, introduce a limit on number of
3454 MDS RPCs in flight for a single client and add /proc controls
3455 to adjust this limit.
3457 Severity : enhancement
3459 Description: client read/write statistics
3460 Details : Add client read/write call usage stats for performance
3461 analysis of user processes.
3462 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3463 file access. extents_stats shows chunk size distribution.
3464 extents_stats_per_process show chunk size distribution per
3467 Severity : enhancement
3469 Description: mds statistics
3470 Details : Add detailed mds operations statistics in
3471 /proc/fs/lustre/mds/*/stats.
3475 Description: Failure of copying files with lustre special EAs.
3476 Details : Client side always return success for setxattr call for lustre
3477 special xattr (currently only "trusted.lov").
3482 Description: Refcount LNET uuids
3483 Details : The global LNET uuid list grew linearly with every startup;
3484 refcount repeated list entries instead of always adding to
3487 Severity : enhancement
3489 Description: Dynamic service threads
3490 Details : Within a small range, start extra service threads
3491 automatically when the request queue builds up.
3494 Frequency : mixed-endian client/server environments
3496 Description: mixed-endian crashes
3497 Details : The new msg_v2 system had some failures in mixed-endian
3500 Severity : enhancement
3502 Description: Easy OST removal
3503 Details : OSTs can be permanently deactivated with e.g. 'lctl
3504 conf_param lustre-OST0001.osc.active=0'
3506 Severity : enhancement
3508 Description: MGS proc entries
3509 Details : Added basic proc entries for the MGS showing what filesystems
3512 Severity : enhancement
3514 Description: provide MGS failover
3515 Details : Added config lock reacquisition after MGS server failover.
3517 Severity : enhancement
3519 Description: add Linux 2.4 support
3520 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3524 Description: a large application tries to do I/O to the same resource and dies
3525 in the middle of it.
3526 Details : Check the req->rq_arrival time after the call to
3527 ost_brw_lock_get(), but before we do anything about
3528 processing it & sending the BULK transfer request. This
3529 should help move old stale pending locks off the queue as
3530 quickly as obd_timeout.
3533 Frequency : when an incorrect nid is specified during startup
3535 Description: ptlrpc connect to non-existant node causes kernel crash
3536 Details : LNET can't be re-entered from an event callback, which
3537 happened when we expire a message after the export has been
3538 cleaned up. Instead, hand the zombie cleanup off to another