3 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
4 for currently supported client and server kernel versions.
5 * Server known to build on the following kernels (others may also work):
6 2.6.32-696.18.7.el6 (RHEL6.9)
7 3.10.0-862.14.4.el7 (RHEL7.5)
8 3.10.0-957.1.3.el7 (RHEL7.6)
9 4.4.120-92.70 (SLES12 SP2)
10 4.4.162-94.69 (SLES12 SP3)
11 4.4.0-131 (Ubuntu 16.04)
12 4.15.0-32 (Ubuntu 18.04)
13 vanilla linux 4.6.7 (ZFS only)
14 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
15 * Client known to build on unpatched kernels (others may also work):
16 2.6.32-696.18.7.el6 (RHEL6.9)
17 2.6.32-754.6.3.el6 (RHEL6.10)
18 3.10.0-862.14.4.el7 (RHEL7.5)
19 3.10.0-957.1.3.el7 (RHEL7.6)
20 4.14.0-49.13.1.el7a (RHEL7.5)
21 4.14.0-115.2.2.el7a (RHEL7.6)
22 4.4.120-92.70 (SLES12 SP2)
23 4.4.162-94.69 (SLES12 SP3)
24 4.12.14-95.6 (SLES12 SP4)
25 4.4.0-131 (Ubuntu 16.04)
26 4.15.0-32 (Ubuntu 18.04)
27 vanilla linux 4.15.0 (ZFS only)
28 * Recommended e2fsprogs version: 1.44.5.wc1 or newer
29 * Recommended ZFS / SPL version: 0.7.13
30 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
31 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
32 stack overflow. For more information, please refer to bugzilla 17630.
33 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
34 the re-exporting nodes to be mounted with "32bitapi" mount option
35 * Note for Ubuntu 14.04.5:
36 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
37 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
39 --------------------------------------------------------------------------------
43 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
44 for currently supported client and server kernel versions.
45 * Server known to build on the following kernels (others may also work):
46 2.6.32-696.18.7.el6 (RHEL6.9)
47 3.10.0-862.14.4.el7 (RHEL7.5)
48 3.10.0-957.el7 (RHEL7.6)
49 4.4.120-92.70 (SLES12 SP2)
50 4.4.162-94.69 (SLES12 SP3)
51 4.4.0-131 (Ubuntu 16.04)
52 4.15.0-32 (Ubuntu 18.04)
53 vanilla linux 4.6.7 (ZFS only)
54 * ldiskfs needs an ldiskfs patch series for that kernel, ZFS does not
55 * Client known to build on unpatched kernels (others may also work):
56 2.6.32-696.18.7.el6 (RHEL6.9)
57 2.6.32-754.6.3.el6 (RHEL6.10)
58 3.10.0-862.14.4.el7 (RHEL7.5)
59 3.10.0-957.el7 (RHEL7.6)
60 4.14.0-49.13.1.el7a (RHEL7.5)
61 4.14.0-115.2.2.el7a (RHEL7.6)
62 4.4.120-92.70 (SLES12 SP2)
63 4.4.162-94.69 (SLES12 SP3)
64 4.4.0-131 (Ubuntu 16.04)
65 4.15.0-32 (Ubuntu 18.04)
66 vanilla linux 4.15.0 (ZFS only)
67 * Recommended e2fsprogs version: 1.44.3.wc1 or newer
68 * Recommended ZFS / SPL version: 0.7.9
69 * Tested with ZFS / SPL version: 0.7.9
70 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
71 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
72 stack overflow. For more information, please refer to bugzilla 17630.
73 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
74 the re-exporting nodes to be mounted with "32bitapi" mount option
75 * Note for Ubuntu 14.04.5:
76 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
77 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
79 --------------------------------------------------------------------------------
82 2018-04-03 Intel Corporation
84 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
85 for currently supported client and server kernel versions.
86 * Server known to build on patched kernels:
87 2.6.32-431.29.2.el6 (RHEL6.5)
88 2.6.32-504.30.3.el6 (RHEL6.6)
89 2.6.32-573.26.1.el6 (RHEL6.7)
90 2.6.32-642.15.1.el6 (RHEL6.8)
91 2.6.32-696.18.7.el6 (RHEL6.9)
92 3.10.0-693.21.1.el7 (RHEL7.4)
93 3.0.101-0.47.71 (SLES11 SP3)
94 3.0.101-107 (SLES11 SP4)
95 3.12.74-60.64.40 (SLES12 SP1)
96 4.4.114-92.64 (SLES12 SP2)
97 4.4.114-94.11 (SLES12 SP3)
98 3.13.0-101 (Ubuntu 14.04, ZFS only)
99 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
100 4.4.0-116 (Ubuntu 16.04)
101 vanilla linux 4.6.7 (ZFS only)
102 * Client known to build on unpatched kernels:
103 2.6.32-431.29.2.el6 (RHEL6.5)
104 2.6.32-504.30.3.el6 (RHEL6.6)
105 2.6.32-573.26.1.el6 (RHEL6.7)
106 2.6.32-642.15.1.el6 (RHEL6.8)
107 2.6.32-696.18.7.el6 (RHEL6.9)
108 3.10.0-693.21.1.el7 (RHEL7.4)
109 3.0.101-0.47.71 (SLES11 SP3)
110 3.0.101-107 (SLES11 SP4)
111 3.12.74-60.64.40 (SLES12 SP1)
112 4.4.114-92.64 (SLES12 SP2)
113 4.4.114-94.11 (SLES12 SP3)
114 3.13.0-101 (Ubuntu 14.04)
115 4.4.0-85.108 (Ubuntu 14.04.5 LTS)
116 4.4.0-116 (Ubuntu 16.04)
118 * Recommended e2fsprogs version: 1.42.13.wc6 or newer
119 * Recommended ZFS / SPL version: 0.7.6
120 * Tested with ZFS / SPL version: 0.7.6
121 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
122 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
123 stack overflow. For more information, please refer to bugzilla 17630.
124 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
125 the re-exporting nodes to be mounted with "32bitapi" mount option
126 * Note for Ubuntu 14.04.5:
127 The 4.4.0 series is the HWE Kernel derived from 16.04 (Xenial).
128 See: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
130 --------------------------------------------------------------------------------
132 2017-07-05 Intel Corporation
134 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
135 for currently supported client and server kernel versions.
136 * Server known to build on patched kernels:
137 2.6.32-431.29.2.el6 (RHEL6.5)
138 2.6.32-504.30.3.el6 (RHEL6.6)
139 2.6.32-573.26.1.el6 (RHEL6.7)
140 2.6.32-642.15.1.el6 (RHEL6.8)
141 2.6.32-696.3.1.el6 (RHEL6.9)
142 3.10.0-514.21.1.el7 (RHEL7.3)
143 3.0.101-0.47.71 (SLES11 SP3)
144 3.0.101-100 (SLES11 SP4)
145 3.12.74-60.64.40 (SLES12 SP1)
146 4.4.59-92.17 (SLES12 SP2)
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 2.6.32-696.3.1.el6 (RHEL6.9)
154 3.10.0-514.21.1.el7 (RHEL7.3)
155 3.0.101-0.47.71 (SLES11 SP3)
156 3.0.101-100 (SLES11 SP4)
157 3.12.74-60.64.40 (SLES12 SP1)
158 4.4.59-92.17 (SLES12 SP2)
160 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
161 * Recommended ZFS / SPL version: 0.6.5.9
162 * Tested with ZFS / SPL version: 0.6.5.9
163 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
164 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
165 stack overflow. For more information, please refer to bugzilla 17630.
166 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
167 the re-exporting nodes to be mounted with "32bitapi" mount option
169 --------------------------------------------------------------------------------
171 12-07-2016 Intel Corporation
173 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
174 for currently supported client and server kernel versions.
175 * Server known to build on patched kernels:
176 2.6.32-431.29.2.el6 (RHEL6.5)
177 2.6.32-504.30.3.el6 (RHEL6.6)
178 2.6.32-573.26.1.el6 (RHEL6.7)
179 2.6.32-642.11.1.el6 (RHEL6.8)
180 3.10.0-514.el7 (RHEL7.3)
181 3.0.101-0.47.71 (SLES11 SP3)
182 3.0.101-80 (SLES11 SP4)
183 3.12.62-60.64.8 (SLES12 SP1)
184 vanilla linux 4.5.7 (ZFS only)
185 * Client known to build on unpatched kernels:
186 2.6.32-431.29.2.el6 (RHEL6.5)
187 2.6.32-504.30.3.el6 (RHEL6.6)
188 2.6.32-573.26.1.el6 (RHEL6.7)
189 2.6.32-642.11.1.el6 (RHEL6.8)
190 3.10.0-514.el7 (RHEL7.3)
191 3.0.101-0.47.71 (SLES11 SP3)
192 3.0.101-80 (SLES11 SP4)
193 3.12.62-60.64.8 (SLES12 SP1)
195 * Recommended e2fsprogs version: 1.42.13.wc5 or newer
196 * Recommended ZFS / SPL version: 0.6.5.8
197 * Tested with ZFS / SPL version: 0.6.5.8
198 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
199 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
200 stack overflow. For more information, please refer to bugzilla 17630.
201 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
202 the re-exporting nodes to be mounted with "32bitapi" mount option
204 --------------------------------------------------------------------------------
206 02-29-2016 Intel Corporation
208 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
209 for currently supported client and server kernel versions.
210 * Server known to build on patched kernels:
211 2.6.32-431.29.2.el6 (RHEL6.5)
212 2.6.32-504.30.3.el6 (RHEL6.6)
213 2.6.32-573.12.1.el6 (RHEL6.7)
214 3.10.0-327.3.1.el7 (RHEL7.2)
215 3.0.101-0.47.71 (SLES11 SP3)
216 3.0.101-68 (SLES11 SP4)
217 vanilla linux 4.2.1 (ZFS only)
218 * Client known to build on unpatched kernels:
219 2.6.32-431.29.2.el6 (RHEL6.5)
220 2.6.32-504.30.3.el6 (RHEL6.6)
221 2.6.32-573.12.1.el6 (RHEL6.7)
222 3.10.0-327.3.1.el7 (RHEL7.2)
223 3.0.101-0.47.71 (SLES11 SP3)
224 3.0.101-68 (SLES11 SP4)
227 * Recommended e2fsprogs version: 1.42.13.wc4 or newer
228 * Recommended ZFS / SPL version: 0.6.4.2
229 * Tested with ZFS / SPL version: 0.6.4.2
230 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
231 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
232 stack overflow. For more information, please refer to bugzilla 17630.
233 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
234 the re-exporting nodes to be mounted with "32bitapi" mount option
236 --------------------------------------------------------------------------------
238 03-10-2015 Intel Corporation
240 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
241 for currently supported client and server kernel versions.
242 * Server known to build on patched kernels:
243 2.6.32-431.29.2.el6 (RHEL6.5)
244 2.6.32-504.8.1.el6 (RHEL6.6)
245 3.0.101-0.46 (SLES11 SP3)
246 * Client known to build on unpatched kernels:
247 2.6.32-431.29.2.el6 (RHEL6.5)
248 2.6.32-504.8.1.el6 (RHEL6.6)
249 3.10.0-123.20.1.el7 (RHEL7)
250 3.0.101-0.46 (SLES11 SP3)
251 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
252 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
253 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
254 stack overflow. For more information, please refer to bugzilla 17630.
255 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
256 the re-exporting nodes to be mounted with "32bitapi" mount option
258 Severity : enhancement
260 Description: control OST-index in IDIF via ROCOMPAT flag.
261 Details : Introduce new flag OBD_ROCOMPAT_IDX_IN_IDIF that is stored in the
262 last_rcvd file. For new formatted OST device, it will be auto set;
263 for the case of upgrading from old OST device, you can enable it
264 via the lproc interface osd-ldiskfs.index_in_idif. With such flag
265 enabled, for new created OST-object, its IDIF-in-LMA will contain
266 the OST-index; for the existing OST-object, the OSD will convert
267 old format IDIF as new format IDIF with OST-index stored in the
268 LMA EA when accessing such OST-object or via OI scrub. Once such
269 flag is enabled, it cannot be reverted back, so the system cannot
270 be downgraded to the orignal incompatible version.
272 --------------------------------------------------------------------------------
274 07-30-2014 Intel Corporation
276 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
277 for currently supported client and server kernel versions.
278 * Server known to build on patched kernels:
279 2.6.32-431.20.3.el6 (RHEL6.5)
280 3.0.101-0.31 (SLES11 SP3)
281 * Client known to build on unpatched kernels:
282 2.6.32-431.20.3.el6 (RHEL6.5)
283 3.0.101-0.31 (SLES11 SP3)
286 * Recommended e2fsprogs version: 1.42.9.wc1 or newer
287 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
288 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
289 stack overflow. For more information, please refer to bugzilla 17630.
290 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
291 the re-exporting nodes to be mounted with "32bitapi" mount option
293 --------------------------------------------------------------------------------
295 10-31-2013 Intel Corporation
297 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
298 * Server builds for kernels:
299 2.6.32-358.18.1.el6 (RHEL6.4)
300 * Client builds for unpatched kernels:
301 2.6.32-358.18.1.el6 (RHEL6.4)
302 3.0.92-0.8 (SLES11 SP3)
304 * Recommended e2fsprogs version: 1.42.7.wc2 or newer
305 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
306 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
307 stack overflow. For more information, please refer to bugzilla 17630.
308 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
309 the re-exporting nodes to be mounted with "32bitapi" mount option
311 --------------------------------------------------------------------------------
313 05-30-2013 Intel Corporation
315 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
316 * Server builds for kernels:
317 2.6.32-358.6.2.el6 (RHEL6.4)
318 * Client builds for unpatched kernels:
319 2.6.32-358.6.2.el6 (RHEL6.4)
320 3.0.74-0.6.6 (SLES11 SP2)
322 * Recommended e2fsprogs version: 1.42.7.wc1 or newer
323 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
324 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
325 stack overflow. For more information, please refer to bugzilla 17630.
326 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
327 the re-exporting nodes to be mounted with "32bitapi" mount option
329 --------------------------------------------------------------------------------
331 9-30-2012 Whamcloud, Inc.
333 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
334 * Server support for kernels:
335 2.6.32-279.5.1.el6 (RHEL6)
336 * Client support for unpatched kernels:
337 2.6.32-279.5.1.el6 (RHEL6)
339 2.6.18-238.19.1.el5 (RHEL5)
340 2.6.16.60-0.69.1 (SLES10)
341 * Recommended e2fsprogs version: 1.41.90.wc4
342 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
343 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
344 stack overflow. For more information, please refer to bugzilla 17630.
345 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
346 the re-exporting nodes to be mounted with "32bitapi" mount option
348 Severity : enhancement
350 Description: Update RHEL6.3 kernel to 2.6.32-279.5.1.el6.
352 Severity : enhancement
354 Description: Update RHEL6.3 kernel to 2.6.32-279.2.1.el6.
356 Severity : enhancement
358 Description: Update RHEL6.2 kernel to 2.6.32-220.17.1.el6
360 Severity : enhancement
362 Description: Update RHEL6.2 kernel to 2.6.32-220.13.1.el6
364 Severity : enhancement
366 Description: Update RHEL6.2 kernel to 2.6.32-220.7.1.el6
368 --------------------------------------------------------------------------------
370 04-30-2012 Whamcloud, Inc.
372 * See https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix
373 * Server support for kernels:
374 2.6.32-220.4.2.el6 (RHEL6)
375 * Client support for unpatched kernels:
376 2.6.32-220.4.2.el6 (RHEL6)
378 2.6.18-238.19.1.el5 (RHEL5)
379 2.6.16.60-0.69.1 (SLES10)
380 * Recommended e2fsprogs version: 1.41.90.wc4
381 * NFS export disabled when stack size < 8192 (32-bit Lustre clients),
382 since the NFSv4 export of Lustre filesystem with 4K stack may cause a
383 stack overflow. For more information, please refer to bugzilla 17630.
384 * NFSv4 reexport to 32-bit NFS client nodes requires Lustre client on
385 the re-exporting nodes to be mounted with "32bitapi" mount option
387 Severity : enhancement
389 Description: Update RHEL6.2 kernel to 2.6.32-220.4.2.el6
391 Severity : enhancement
393 Description: Update RHEL6.2 kernel to 2.6.32-220.4.1.el6
395 Severity : enhancement
397 Description: Update RHEL6.2 kernel to 2.6.32-220.el6
399 Severity : enhancement
401 Description: Update RHEL6.1 kernel to 2.6.32-131.17.1.el6
403 --------------------------------------------------------------------------------
405 09-30-2011 Whamcloud, Inc.
407 * Server support for kernels:
408 2.6.18-238.19.1.el5 (RHEL5)
409 2.6.32-131.6.1.el6 (RHEL6)
410 * Client support for unpatched kernels:
411 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
412 2.6.18-238.19.1.el5 (RHEL5)
413 2.6.32-131.6.1.el6 (RHEL6)
414 2.6.29.4-167.fc11 (FC11)
415 2.6.16.60-0.69.1 (SLES10)
417 * Recommended e2fsprogs version: 1.41.90.wc3
418 * NFS export disabled when stack size < 8192. Since the NFSv4 export of
419 Lustre filesystem with 4K stack may cause a stack overflow. For more
420 information, please refer to bugzilla 17630.
421 * NFSv4 reexport requires Lustre client on the re-exporting nodes to be
422 mounted with "32bitapi" mount option
424 Severity : enhancement
425 Description: Update RHEL6.1 kernel to 2.6.32-131.6.1.el6
427 Severity : enhancement
428 Description: Update RHEL5.6 kernel to 2.6.18-238.19.1.el5
430 Severity : enhancement
431 Description: Update RHEL5.6 kernel to 2.6.18-238.9.1.el5
434 Frequency : only with SLES10
436 Description: Use OFED "KMP" provided by Novell
437 Details : SLES10 SP3 ships with OFED in a separate "KMP" package.
438 Lustre is now built against this package. That means you need to
439 install the ofed-kmp package from Novell for the patchless client.
440 Note that the ofed-kmp that Novell ships may not exactly match the
441 kernel version but should still be compatible.
443 Severity : enhancement
445 Description: Update RHEL5.5 kernel to 2.6.18-194.17.1.el5
446 Update OEL5.5 kernel to 2.6.18-194.17.1.0.1.el5.
448 --------------------------------------------------------------------------------
450 2010-07-15 Oracle, Inc.
452 * Server support for kernels:
453 2.6.18-164.11.1.el5 (RHEL 5)
454 2.6.18-164.11.1.0.1.el5 (OEL 5)
455 * Client support for unpatched kernels:
456 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
457 2.6.18-164.11.1.el5 (RHEL 5),
458 2.6.18-164.11.1.0.1.el5 (OEL 5)
459 2.6.16.60-0.42.8 (SLES 10),
461 2.6.29.4-167.fc11 (FC11)
462 * Recommended e2fsprogs version: 1.41.10-sun2
464 Severity : enhancement
466 Description: Distribute lfs_migrate script with lustre
467 Details : The lfs_migrate mentioned in the manual is now included in the
468 lustre tree in lustre/scripts and will distributed in lustre RPMs.
470 Severity : enhancement
472 Description: Failover nid list added to import proc file.
474 Severity : enhancement
476 Description: "som_preview" mount option required to use SOM
477 Details : The clients will need to use som_preview mount option
481 Description: Lustre does not do 1MB IOs to HW RAID
482 Details : Bump MAX_PHYS/HW_SEGMENTS and SG_ALL to 256 in the RHEL5 kernel.
484 Severity : enhancement
486 Description: lfs quota output is not very convenient for awk/sed-parsing
487 Details : Some positions in lfs quota output table could be empty or
488 non-empty which made it hard to parse it with scripts, now
489 a dash is put instead of space where there is not supposed
494 Description: Update to OFED 1.5.1
495 Details : OFED 1.5.1 will be used in environments that don't use
496 vendor supplied OFED.
500 Description: Remove lnet. prefix from lctl params display
501 Details : Also renamed lnet.memused to lnet_memused to
506 Description: Use conf_param -d to remove permanant settings.
510 Description: Add list_param -R
511 Details : lctl list_param now supports recursive mode.
514 Bugzilla : 21829, 22312
515 Description: Fix llobdstat.
516 Details : 1. Now updating the write_bytes counter
517 2. Port script fixes from 1.8.
521 Description: decrease the usage of memory on clients.
522 Details : 1. On clients, recycle dentries and inodes unused.
523 2. Delete the code related to ll_deathrow(att 6215 in bug 1443). It
528 Description: llobdstat fix and enhancement
529 Details : add a counter to set a limit to how many samples will be returned
530 fix a wildcard in the path to limit to obdfilter stats only
534 Description: lfs check only allowed for root
535 Details : Code cleanups and added a regresion test of non-root use of
540 Description: MDS Oopses in ptlrpc_dispatch_difficult_reply()/__list_add()
541 Details : Fix hr->hr_index overload.
545 Description: Fix FIEMAP functionality.
549 Description: FC11 patchless client support added
553 Description: Update RHEL5.4 kernel to 2.6.18-164.11.1.el5 and
554 OEL5.4 kernel to 2.6.18-164.11.1.0.1.el5.
558 Description: New acc-sm script and various test-framework enhancments.
562 Description: Previously landed patch was reverted.
566 Description: Update SLES10 kernel to 2.6.16.60-0.42.8 (patchless)
570 Description: Add ldiskfs maxdirsize mount option.
574 Description: Fix mkfs.lustre support for 16TB LUNs.
578 Description: Print mmp_check_interval
579 Details : print mmp_check_interval and make it possible to abort
580 mount operation in case it takes too long.
584 Description: Add cascading_rw to lustre mpi tests.
588 Description: Store SOM data in EA.
589 Details : Also several SOM related cleanups.
593 Description: Add refcount to md_open_data
597 Description: Use refcount on lov_request_set to prevent memory corruption.
601 Description: Statahead: use parent dir's i_mutex for synchronization.
605 Description: loadgen improvements.
609 Description: Enable peer health detection in ksocklnd and ko2iblnd.
613 Description: Control DCACHE_LUSTRE_INVALID flag with MDS_INODE_LOOKCUP lock
617 Description: Fix race on obd_devcie:md_stats
621 Description: Fix SLES 11 client builds.
622 Details : Resolved uninitalized pointer gcc warnings.
626 Description: Allow non-root access for "lfs check".
627 Details : Added a check in obd_class_ioctl() for OBD_IOC_PING_TARGET.
631 Description: Clear imp_force_reconnect correctly in ptlrpc_connect_interpret()
633 Severity : enhancement
635 Description: Update kernel to RHEL5.4 2.6.18-164.6.1.el5 and
636 OEL5 2.6.18-164.6.1.0.1.el5(Both in-kernel OFED enabled).
640 Description: Sanity test_27p fails.
641 Details : OBD_FAIL_OST_ENOSPC has been moved to filter_statfs().
642 Sanity tests 27 were cleaned up and improved.
646 Description: Unify req format on client/servers
647 Details : Use new req_capsule API [almost] everywhere instead of old PTLRPC
648 buffers and swabbers approach..
653 Description: drop join file stuff.
655 Severity : enhancement
657 Description: Add 2.6.27 and SLES11 (patchless client) support
661 Description: Fix in ptlrpc_expire_one_request() to print the signed time
664 Severity : enhancement
666 Description: Build kernels (RHEL5, OEL5 and SLES10/11) using the vendor's own
669 Severity : enhancement
671 Description: Remove set_info(KEY_UNLINKED) from MDS/OSC
673 Severity : enhancement
675 Description: correctly handle big reply message.
676 Details : send LNet event if reply is bigger than buffer and adjust this buffer
681 Description: Drop unnecessary __GFP_NOMEMALLOC flag from filter_get_page()
683 Severity : enhancement
685 Description: Add support for OEL5.
689 Description: Conf-sanity.sh 50g test - deactivated OST should not cause a panic.
691 Severity : enhancement
693 Description: "weak-modules" support
694 Details : Implement "weak-modules" support which enables kernel modules
695 to be used with any kernel that implements the same kABI. In
696 order to achieve this modules are now installed in
697 /lib/modules/$(uname -r)/updates/kernel on all distributions.
701 Description: client could not reconnect to OST because of an active request.
702 Details : The client now retries to reconnect to the same server, if a
703 connect request failed with EBUSY or -EAGAIN. Test case 35b
704 conf-sanity.sh has been created.
708 Description: Don't allow make backward step on assignin osc next id.
709 Details : race between allocation next id and ll_sync thread can be cause
710 of set wrong osc next id and can be kill valid ost objects.
714 Description: Changes in raid5-large-io-rhel5.patch to calculate sectors properly
718 Description: Increase the default BLK_DEF_MAX_SECTORS value for RHEL5 and SLES11
722 Description: Error handling in osc_statfs_interpret() has been improved.
723 Details : Check in osc_statfs_interpret() for EBADR.
727 Description: Do not send statfs() requests to OSTs disabled by administrator.
728 Details : Check in lov_prep_statfs_set() for non-NULL ltd_exp.
730 Severity : enhancement
732 Description: Added sanity-quota test to for lfs(1) to work with numeric uid/gid.
734 Severity : enhancement
736 Description: Update kernel to RHEL5 2.6.18-128.7.1.el5.
738 Severity : enhancement
740 Description: Enhancement for lfs(1) command to use numeric uid/gid.
744 Description: Improved cleanup procedure for conf-sanity test_46a.
748 Description: Do not start bulk transfer, if client tried to reconnect.
749 Details : Do not start bulk transfer, if client tried to reconnect,
750 but failed due to active rpcs. Check for exp_abort_active_req
751 has been implemented.
755 Description: Prevent inconsistences between linux and lustre mount structures.
756 Details : Wait indefinitely in server_wait_finished() until mnt_count drops.
757 Make the sleep interruptible.
759 Severity : enhancement
761 Description: provide server to client comms path
762 Details : server to client communications path via new LDLM_SET_INFO rpc
766 Description: truncate starts GFP_FS allocation under transaction causing deadlock
767 Details : ldiskfs_truncate calls grab_cache_page which may start page
768 allocation under an open transaction. This may lead to
769 calling prune_icache with consequent lustre reentrance.
773 Description: send correctly lsm on open replay
774 Details : MDS is trust to LSM size on replay open, but client can set wrong size
779 Description: enable client interface failover
780 Details : When a child reconnects from another NID, properly update export
781 nid hash position and ldlm reverse import.
783 Severity : enhancement
785 Description: Communicate OST degraded/readonly state via statfs to MDS
786 Details : Flags in the statfs returned from OSTs indicate whether the
787 OST is in a degraded RAID state, or if the filesystem has
788 turned read-only after a filesystem error is detected.
793 Description: don't panic if EPROTO was hit when reading symlink
794 Details : correctly handling request reference in error cases.
796 Severity : enhancement
798 Description: Add LustreNetLink, a kernel-userspace communcation path.
800 Severity : enhancement
802 Description: Update kernel to SLES10 SP2 2.6.16.60-0.39.3.
807 Description: access to llog context before init.
808 Details : move handling CATALOGS file at osc layer and forbid access to llog
812 Frequency : rare, only when client is writing to OST on local node
814 Description: Avoid deadlock for local client writes
815 Details : Use new OBD_BRW_MEMALLOC flag to notify OST about writes in the
816 memory freeing context. This allows OST threads to set the
817 PF_MEMALLOC flag on task structures in order to allocate memory
818 from reserved pools and complete IO.
819 Use GFP_HIGHUSER for OST allocations for non-local client writes,
820 so that the OST threads generate memory pressure and allow
821 inactive pages to be reclaimed.
823 Severity : enhancement
825 Description: Update kernel to RHEL5.3 2.6.18-128.1.14.el5.
830 Description: lock ordering violation between &cli->cl_sem and _lprocfs_lock
831 Details : move ldlm namespace creation in setup phase to avoid grab
832 _lprocfs_lock with cli_sem held.
836 Description: Temporarily disable grant shrink.
837 Details : Disable the feature for debugging.
840 Frequency : only when formatting test filesystems
842 Description: Unable to run several mkfs.lustre on loop devices at the same time
843 Details : mkfs.lustre returns error 256 on the concurrent loop devices
844 formatting. The solution is to proper handle the error.
846 Severity : enhancement
848 Description: Update kernel to RHEL5.3 2.6.18-128.1.6.el5.
850 Severity : enhancement
852 Description: Update kernel to SLES10 SP2 2.6.16.60-0.37.
857 Description: resolve race between obd_disconnect and class_disconnect_exports
858 Details : if obd_disconnect will be called to already disconnected export he
859 forget release one reference and osc module can't unloaded.
861 Severity : enhancement
863 Description: Allow tuning service thread via /proc
864 Details : For each service a new
865 /proc/fs/lustre/{service}/*/thread_{min,max,started} entry is
866 created that can be used to set min/max thread counts, and get the
867 current number of running threads.
872 Descriptoin: don't return error if have partially created objects for file.
873 Details : lov_update_create_set uses set->set_success as index for created
874 objects, so if some requests will be failed, they will have hole
875 at end of array and qos_shrink_lsm for allocate correct lsm.
877 Severity : enhancement
879 Description: Update OFED support to 1.4.1
884 Description: Reduce small size read RPC
885 Details : Set read-ahead limit for every file and only do read-ahead when
886 available read-ahead pages are bigger than 1M to avoid small size
889 Severity : enhancement
891 Description: move AT tunable parameters for more consistent usage
892 Details : add AT tunables under /proc/sys/lustre, add to conf_param parsing
894 Severity : enhancement
896 Description: add lazystatfs mount option to allow statfs(2) to skip down OSTs
897 Details : allow skip disconnected ost for send statfs request and hide error
903 Description: fix racy locking of mballoc block bitmaps causing BUG
904 Details : The locking of the mballoc buddy bitmap and the in-memory
905 block bitmap was using two different spin locks in some
906 cases. This made it possible to incorrectly access the
907 mballoc bitmap while another process was modifying it,
908 causing a sanity assertion to fail. While no on-disk corruption
909 was reported, there was some risk of this happening.
912 Frequency : rare, on llog test 6
914 Descriptoin: don't allow connect to already connected import
915 Details : allowing connect to already connected import is hide connecting problem.
920 Descriptoin: allow kill process which wait statahead result
921 Details : for some reasons 'ls' can stick in waiting result from statahead,
922 in this case need way for kill this process.
924 Severity : enhancement
926 Description: Add state history info file, enhance import info file
927 Details : Track import connection state changes in a new osc/mdc proc file;
928 add overview-type data to the osc/mdc import proc file.
930 Severity : enhancement
932 Description: MDS create should not wait for statfs RPC while holding DLM lock.
934 Severity : enhancement
936 Description: Update to RHEL5U3 kernel-2.6.18-128.1.1.el5.
941 Descriptoin: OST grant too much space to client even there are not enough space.
942 Details : Client will shrink its grant cache to OST if there are no write
943 activity over 6 mins (GRANT_SHRINK_INTERVAL), and OST will retrieve
944 this grant cache if there are already not enough avaible space
945 (left_space < total_clients * 32M).
948 Frequency : start MDS on uncleanly shutdowned MDS device
950 Descriptoin: ll_sync thread stay in waiting mds<>ost recovery finished
951 Details : stay in waiting mds<>ost recovery finished produce random bugs
952 due race between two ll_sync thread for one lov target. send
953 ACTIVATE event only if connect realy finished and import have
957 Frequency : rare, connect and disconnect target at same time
959 Descriptoin: ASSERTION(atomic_read(&imp->imp_inflight) == 0
960 Details : don't call obd_disconnect under lov_lock. this long time
961 operation and can block ptlrpcd which answer to connect request.
966 Descriptoin: don't lose wakeup for imp_recovery_waitq
967 Details : recover_import_no_retry or invalidate_import and import_close can
968 both sleep on imp_recovery_waitq, but we was send only one wakeup
972 Frequency : always with long access acl
974 Descriptoin: mds can't pack reply with long acl.
975 Details : mds don't control size of acl but they limited by reint/getattr
978 Severity : enhancement
980 Description: Update to SLES10 kernel-2.6.16.60-0.33.
982 Severity : enhancement
984 Description: Update to RHEL5 kernel-2.6.18-92.1.22.el5.
987 Frequency : start MDS on uncleanly shutdowned MDS device
989 Descriptoin: aborting recovery hang on MDS
990 Details : don't throttle destroy RPCs for the MDT.
993 Frequency : on remount
995 Description: external journal device not working after the remount
996 Details : clear dev_rdonly flag for external journal devices in
1002 Description: shutdown vs evict race
1003 Details : client_disconnect_export vs connect request race.
1004 if client will evicted at this time - we start invalidate
1005 thread without referece to import and import can be freed
1009 Frequency : rare, need acl's on inode.
1011 Description: client can't handle ost additional correctly
1012 Details : if ost was added after client connected to mds client can have
1013 hit lnet_try_match_md ... to big messages to wide striped files.
1014 in this case need teach client to handle config events about add
1015 lov target and update client max ea size at that event.
1017 Severity : enhancement
1019 Description: Changelogs
1020 Details : Changelogs are a lightweight mechanism to track filesystem
1021 metadata and namespace changes. The changelog is recorded
1022 permanently on the MDTs, and is periodically "consumed" / purged
1023 when records are no longer needed.
1025 Severity : enhancement
1027 Description: compact fld format with extents
1028 Details : Store range of seq rather than every seq in FLD. Seq
1029 controller update FLD rather than clients. In Case of CMD, mdt0
1030 has FLD, all other metadata server act as non persistent proxy
1031 for FLD queries and cache fld entries in fld cache.
1036 Description: don't skip ost target if they assigned to file
1037 Details : Drop slow OSCs if we can, but not for requested start idx.
1038 This means "if OSC is slow and it is not the requested
1039 start OST, then it can be skipped, otherwise skip it only
1040 if it is inactive/recovering/out-of-space.
1044 Description: more cleanup in mds_lov
1045 Details : not send LOV EA under replay, we can't know about they size at this
1046 time. Don't allow client connect to mds before any ost connected,
1047 for avoid problems with LOV EA size and returning EIO to client.
1049 Severity : enhancement
1051 Description: Interoperability at server side (Disk interoperability)
1053 Severity : enhancement
1055 Description: Update to RHEL5 kernel-2.6.18-92.1.17.el5.
1057 Severity : enhancement
1059 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.31.
1061 Severity : enhancement
1063 Description: New client IO stack (CLIO).
1065 Severity : enhancement
1067 Description: Commit on sharing. Eliminate inter-client dependencies between
1068 uncommitted transactions by doing transaction commits.
1069 Thereby clients may recovery independently.
1072 Frequency : Create a symlink file with a very long name
1074 Description: ldlm_cancel_pack()) ASSERTION(max >= dlm->lock_count + count)
1075 Details : If there is no extra space in the request for early cancels,
1076 ldlm_req_handles_avail() returns 0 instead of a negative value.
1078 Severity : enhancement
1080 Description: Add /proc entry for import status
1081 Details : The mdc, osc, and mgc import directories now have
1082 an import directory that contains useful import data for debugging
1083 connection problems.
1085 Severity : enhancement
1087 Description: Re-disable certain /proc logging
1088 Details : Enable and disable client's offset_stats, extents_stats and
1089 extents_stats_per_process stats logging on the fly.
1092 Frequency : Only on FC kernels 2.6.22+
1094 Description: oops in statahead
1095 Details : Do not drop reference count for the dentry from VFS when lookup,
1096 VFS will do that by itself.
1098 Severity : enhancement
1100 Description: Generic /proc file permissions
1101 Details : Set /Proc file permissions in a more generic way to enable non-
1102 root users operate on some /proc files.
1106 Description: Hitting mdc_commit_close() ASSERTION
1107 Details : Properly handle request reference release in
1108 ll_release_openhandle().
1112 Description: quota recovery deadlock during mds failover
1113 Details : This patch includes att18982, att18236, att18237 in bz14840.
1115 1. fix osts hang when mds does failover with quotaon
1116 2. prevent watchdog storm when osts threads wait for the
1121 Frequency : only patchless client
1122 Description: add workaround for race between add/remove dentry from hash
1124 Severity : enhancement
1126 Description: Allow OST glimpses to return PW locks
1130 Description: LBUG when llog conf file is full
1131 Details : When llog bitmap is full, ENOSPC should be returned for plain log.
1135 Description: Prevent import from entering FULL state when server in recovery
1139 Description: service mount cannot take device name with ":"
1140 Details : Only when device name contains ":/" will mount treat it as
1146 Description: replace ptlrpcd with the statahead thread to interpret the async
1147 statahead RPC callback
1151 Frequency : on recovery
1152 Description: I/O failures after umount during fail back
1153 Details : if client reconnected to restarted server we need join to recovery
1154 instead of find server handler is changed and process self
1155 eviction with cancel all locks.
1157 Severity : enhancement
1159 Description: Update to RHEL5 kernel-2.6.18-92.1.10.el5.
1161 Severity : enhancement
1163 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.27.
1165 Severity : enhancement
1167 Description: Upcall on Lustre log has been dumped
1168 Details : Allow for a user mode script to be called once a Lustre log has
1169 been dumped. It passes the filename of the dumped log to the
1170 script, the location of the script can be specified via
1171 /proc/sys/lnet/debug_log_upcall.
1176 Description: avoid idr_remove called for id which is not allocated.
1177 Details : Move assigment s_dev for clustered nfs to end of initialization,
1178 to avoid problem with error handling.
1183 Description: avoid Already found the key in hash [CONN_UNUSED_HASH] messages
1184 Details : When connection is reused this not moved from CONN_UNUSED_HASH
1185 into CONN_USED_HASH and this prodice warning when put connection
1186 again in unused hash.
1189 Severity : enhancement
1191 Description: File striping can now be set to use an arbitrary pool of OSTs.
1193 Severity : enhancement
1195 Description: Export bytes_read/bytes_write count on OSC/OST.
1199 Description: Early reply size mismatch, MGC loses connection
1200 Details : Apply the MGS_CONNECT_SUPPORTED mask at reconnect time so
1201 the connect flags are properly negotiated.
1206 Description: quotas are not honored with O_DIRECT
1207 Details : all writes with the flag O_DIRECT will use grants which leads to
1208 this problem. Now using OBD_BRW_SYNC to guard this.
1212 Description: add quota statistics
1213 Details : 1. sort out quota proc entries and proc code.
1214 2. add quota statistics
1216 Severity : enhancement
1218 Description: enable quota support for HEAD.
1222 Description: Properly propagate oinfo flags from lov to osc for statfs
1223 Details : restore missing copy oi_flags to lov requests.
1225 Severity : enhancement
1227 Description: Add man pages for llobdstat(8), llstat(8), plot-llstat(8),
1228 : l_getgroups(8), lst(8), routerstat(8)
1229 Details : included man pages for llobdstat(8), llstat(8),
1230 : plot-llstat(8), l_getgroups(8), lst(8), routerstat(8)
1232 Severity : enhancement
1234 Description: configure's --enable-quota should check the
1235 : kernel .config for CONFIG_QUOTA
1236 Details : configure is terminated if --enable-quota is passed but
1237 : no quota support is in kernel
1241 Description: Remove portals compatibility
1242 Details : Remove portals compatibility, not interoperable with releases
1247 Description: Resolve device initialization race
1248 Details : Prevent proc handler from accessing devices added to the
1249 obd_devs array but yet be intialized.
1251 Severity : enhancement
1253 Description: Update to SLES10 SP2 kernel-2.6.16.60-0.23.
1255 Severity : enhancement
1257 Description: Update to RHEL5 kernel-2.6.18-92.1.6.el5.
1262 Description: Using wrong pointer in osc_brw_prep_request
1263 Details : Access to array[-1] can produce panic if kernel compiled with
1264 CONFIG_PAGE_ALLOC enabled
1268 Description: Client runs out of low memory
1269 Details : Consider only lowmem when counting initial number of llap pages
1273 Description: *optional* service tags registration
1274 Details : if the "service tags" package is installed on a Lustre node
1275 When the filesystem is mounted, a local-node service tag will
1276 be created. See http://inventory.sun.com/ for more information
1277 about the Service Tags asset management system.
1281 Description: Kernel BUG tries to release flock
1282 Details : Lustre does not destroy flock lock before last reference goes
1283 away. So always drop flock locks when client is evicted and
1284 perform unlock regardless of successfulness of speaking to MDS.
1288 Description: add refcount protection for osc callbacks, avoid panic on shutdown
1292 Description: sanity test 65a fails if stripecount of -1 is set
1293 Details : handle -1 striping on filesystem in ll_dirstripe_verify
1298 Description: ASSERTION(CheckWriteback(page,cmd)) failed
1299 Details : badly clear PG_Writeback bit in ll_ap_completion can produce false
1302 Severity : enhancement
1304 Description: Update to RHEL5 kernel-2.6.18-53.1.21.el5.
1308 Description: do not process already freed flock
1309 Details : flock can possibly be freed by another thread before it reaches
1310 to ldlm_flock_completion_ast.
1314 Description: LBUG during stress test
1315 Details : Need properly lock accesses the flock deadlock detection list.
1319 Description: oops in page fault handler
1320 Details : kernel page fault handler can return two special 'pages' in error
1321 case, don't try dereference NOPAGE_SIGBUS and NOPAGE_OMM.
1325 Description: timeout with invalidate import.
1326 Details : ptlrpcd_check call obd_zombie_impexp_cull and wait request which
1327 should be handled by ptlrpcd. This produce long age waiting and
1328 -ETIMEOUT ptlrpc_invalidate_import and as result LASSERT.
1330 Severity : enhancement
1332 Description: Update to RHEL5 kernel-2.6.18-53.1.19.el5.
1336 Description: enable MGS and MDT services start separately
1337 Details : add a 'nomgs' option in mount.lustre to enable start a MDT with
1338 a co-located MGS without starting the MGS, which is a complement
1339 to 'nosvc' mount option.
1343 Frequency : after recovery
1344 Description: precreate to many object's after del orphan.
1345 Details : del orphan st in oscc last_id == next_id and this triger growing
1346 count of precreated objects. Set flag LOW to skip increase count
1347 of precreated objects.
1351 Frequency : rare, on clear nid stats
1352 Description: ASSERTION(client_stat->nid_exp_ref_count == 0)
1353 Details : when clean nid stats sometimes try destroy live entry,
1354 and this produce panic in free.
1358 Description: Stack overflow during MDS log replay
1359 ease stack pressure by using a thread dealing llog_process.
1363 Description: wait until IO finished before start new when do lock cancel.
1364 Details : VM protocol want old IO finished before start new, in this case
1365 need wait until PG_writeback is cleared until check dirty flag and
1366 call writepages in lock cancel callback.
1368 Severity : enhancement
1370 Description: using special macro for print time and cleanup in includes.
1374 Description: mds_mfd_close() ASSERTION(rc == 0)
1375 Details : In mds_mfd_close(), we need protect inode's writecount change
1376 within its orphan write semaphore to prevent possible races.
1380 Description: Obsolete CURRENT_SECONDS and use cfs_time_current_sec() instead.
1384 Frequency : rare, on shutdown ost
1385 Description: don't hit live lock with umount ost.
1386 Details : shrink_dcache_parent can be in long loop with destroy dentries,
1387 use shrink_dcache_sb instead.
1391 Description: don't panic with use echo client
1392 Details : echo client pass NULL as client nid pointer and this produce null
1393 pointer dereference.
1397 Description: fix build on ppc32
1398 Details : compile code with -m64 flag produce wrong object file for ppc32.
1402 Description: add message levels for liblustreapi
1406 Description: fix for occasional failure case of -ENOSPC in recovery-small tests
1407 Details : Move the 'good_osts' check before the 'total_bavail' check. This
1408 will result in an -EAGAIN and in the exit call path we call
1409 alloc_rr() which will with increasing aggressiveness attempt to
1410 aquire precreated objects on the minimum number of required OSCs.
1414 Description: Use old size assignment to avoid deadlock
1415 Details : Reverts the changes in bugs 2369 and bug 14138 that introduced
1416 the scheduling while holding a spinlock. We do not need locking
1417 for size in ll_update_inode() because size is only updated from
1418 the MDS for directories or files without objects, so there is no
1419 other place to do the update, and concurrent access to such inodes
1420 are protected by the inode lock.
1424 Description: resolve "_IOWR redefined" build error on SLES10
1428 Description: dump the memory debugging after all modules are unloaded to
1429 suppress false negative in conf_sanity test 39
1431 Severity : enhancement
1433 Description: build kernel-ib packages for OFED 1.3 in our release cycle
1438 Description: fix SLES kernel versioning
1439 Details : the kernel version for our SLES 10 kernel did not include a "-"
1440 before the "smp" at the end. while this was not a problem in
1441 general, it did mean that software trying to use the kernel
1442 version to try to detect a vendor specific kernel would fail.
1443 this was most evident by the OFED build scripts.
1447 Description: Don't update lov_desc members until making sure they are valid
1448 Details : When updating lov_desc members via proc fs, need fix their
1449 validities before doing the real update.
1453 Description: don't put request into delay list while invalidate in flight.
1454 Details : ptlrpc_delay_request sometimes put in delay list while invalidate
1455 import in flight. this produce timeout for invalidate and sometimes
1456 can cause stale data.
1460 Frequency : on ppc only
1461 Description: not convert ost objects for directory because it's not exist.
1462 Details : ll_dir_getstripe assume dirrectory has ost objects but this wrong.
1466 Description: Add FMODE_EXEC file flag for SLES10 SP1 kernel.
1468 Severity : enhancement
1470 Description: Update to support 2.6.22.14 vanilla kernel.
1474 Frequency : rare, on recovery
1475 Description: read procfs can produce deadlock in some situation
1476 Details : Holding lprocfs lock which send rpc can produce block for destroy
1477 obd objects and this also block reconnect with -EALREADY. This
1478 isn't fix all lprocfs bugs - but make it rare.
1480 Severity : enhancement
1482 Description: Update kernel to RHEL5 2.6.18-53.1.14.el5.
1485 Frequency : frequent on X2 node
1487 Description: mdc_set_open_replay_data LBUG
1488 Details : Set replay data for requests that are eligible for replay.
1492 Description: lustre_mgs: operation 101 on unconnected MGS
1493 Details : When MGC is disconnected from MGS long enough, MGS will evict the
1494 MGC, and late on MGC cannot successfully connect to MGS and a lot
1495 of the error messages complaining that MGS is not connected.
1499 Frequency : on network error
1500 Description: panic with double free request if network error
1501 Details : mdc_finish_enqueue is finish request if any network error ocuring,
1502 but it's true only for synchronus enqueue, for async enqueue
1503 (via ptlrpcd) this incorrect and ptlrpcd want finish request
1506 Severity : enhancement
1508 Description: client-side metadata stat-ahead during readdir(directory readahead)
1509 Details : perform client-side metadata stat-ahead when the client detects
1510 readdir and sequential stat of dir entries therein
1513 Frequency : on start mds
1515 Description: Implement get_info(last_id) in obdfilter.
1518 Frequency : occasional
1520 Description: Correctly check stale fid, not start epoch if ost not support SOM
1521 Details : open with flag O_CREATE need set old fid in op_fid3 because
1522 op_fid2 was overwritten with new generated fid, but mds can answer
1523 with one of these two fids and both is not stale. Setattr
1524 incorrectly started an epoch and assume will be called
1525 done_writing, but without SOM done_writing ever being called.
1528 Frequency : rare, depends on device drivers and load
1530 Description: MDS or OSS nodes crash due to stack overflow
1531 Details : Code changes in 1.8.0 increased the stack usage of some functions.
1532 In some cases, in conjunction with device drivers that use a lot
1533 of stack the MDS (or possibly OSS) service threads could overflow
1534 the stack. One change which was identified to consume additional
1535 stack has been reworked to avoid the extra stack usage.
1538 Frequency : occasional
1540 Description: Do not fail import if osc_interpret_create gets -EAGAIN
1541 Details : If osc_interpret_create got -EAGAIN it immediately exits and
1542 wakeup oscc_waitq. After wakeup oscc_wait_for_objects call
1543 oscc_has_objects and see OSC has no objests and call
1544 oscc_internal_create to resend create request.
1546 Severity : enhancement
1548 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.5.
1550 Severity : enhancement
1552 Description: Update to RHEL5 latest kernel-2.6.18-53.1.13.el5.
1555 Frequency : very rare
1557 Description: Fix replay if there is an un-replied request and open
1558 Details : In some cases, older replay request will revert the
1559 mcd->mcd_last_xid on MDS which is used to record the client's
1560 latest sent request.
1562 Severity : enhancement
1564 Description: Update to RHEL5 latest kernel-2.6.18-53.1.6.el5.
1566 Severity : enhancement
1568 Description: Add rhel5 support to HEAD.
1570 Serverity : enhancement
1572 Description: Update RHEL4 kernel to 2.6.9-67.0.4.
1577 Description: Don't allow skipping OSTs if index has been specified.
1578 Details : Don't allow skipping OSTs if index has been specified, make
1579 locking in internal create lots better.
1583 Description: LBUG in ptlrpc_check_set() bad phase ebc0de00
1584 Details : access to bitfield in structure is always rounded to long
1585 and this produce problem with not atomic change any bit.
1589 Description: Lustre make rpms failed.
1590 Details : Remove ldiskfs spec file to avoids rpmbuild be confused when
1591 builds Lustre rpms from tarball.
1594 Frequency : rare on shutdown ost
1596 Description: If llog cancel was not send before clean_exports phase, this can
1597 produce deadlock in llog code.
1598 Details : If llog thread has last reference to obd and call class_import_put
1599 this produce deadlock because llog_cleanup_commit_master wait when
1600 last llog_commit_thread exited, but this never success because was
1601 called from llog_commit_thread.
1605 Description: allow userland application know is lost one of stripes.
1606 Details : fill lvb_blocks with error code on ost and return it to
1607 application if error flag found.
1611 Description: NULL lov_tgts causing MDS oops
1612 Details : more safe checks for NULL lov_tgts for avoid oops.
1614 Severity : enhancement
1616 Description: Update to RHEL4 latest kernel-2.6.9-67.0.1.EL.
1620 Descriptoin: make lov_create() will not stuck in obd_statfs_rqset()
1621 Details : If an OST is down the MDS will hang indefinitely in
1622 obd_statfs_rqset() waiting for the statfs data. While for
1623 MDS QOS usage of statfs, it should not stuck in waiting.
1625 Severity : enhancement
1627 Description: remote_acl support
1628 Details : Support ACL-based permission check for remote user.
1629 Support setfacl/getfacl for remote user with the utils
1630 "lfs {l,r}{s,g}etfacl" which follow the same parameter format as
1631 the system "{s,g}etfacl" utils.
1633 Severity : enhancement
1635 Description: Update to RHEL4 U6 kernel-2.6.9-67.EL.
1637 Severity : enhancement
1639 Description: Update to RHEL5 latest kernel-2.6.18-53.1.4.el5.
1643 Description: make mgs_setparam() handle fsname containing dash
1644 Details : fsname containing a dash does not work with lctl conf_param
1646 Severity : enhancement
1648 Description: Update to SLES10 SP1 latest kernel-2.6.16.54-0.2.3.
1650 Severity : enhancement
1652 Description: Update to RHEL5 Update-1 kernel 2.6.18-53.el5.
1656 Frequency : rare, at shutdown
1657 Description: access already free / zero obd_namespace.
1658 Details : if client_disconnect_export was called without force flag set,
1659 and exist connect request in flight, this can produce access to
1660 NULL pointer (or already free pointer) when connect_interpret
1661 store ocd flags in obd_namespace.
1665 Frequency : only at startup
1666 Description: not alloc memory with spinlock held.
1667 Details : allocation memory with GFP_KERNEL can produce sleep deadlock,
1668 if any spinlock held.
1670 Severity : enhancement
1672 Description: make lustre randomly fail allocating memory
1673 Details : Make lustre randomly failed allocating memory for testing purpose.
1675 Severity : enhancement
1677 Description: lost problems with lov objid file
1678 Details : Fixes some scability and access to not inited memory problems
1679 in work with lov objdid file.
1684 Description: lfs find does not continue on file error
1685 Details : Continue other files processing when a file/dir is absent.
1689 Description: Inconsistent usage of lustre_pack_reply()
1690 Details : Standardize the usage of lustre_pack_reply() such that it
1691 always generate a CERROR on failure.
1694 Frequency : occasional
1696 Description: MDS hang or stay in waiting lock
1697 Details : If client receive lock with CBPENDING flag ldlm need send lock
1698 cancel as separate rpc, to avoid situation when cancel request
1699 can't processed due all i/o threads stay in wait lock.
1703 Description: Update to RHEL5 kernel 2.6.18-8.1.15.el5.
1707 Description: Update to SLES10 SP1 kernel 2.6.16.53-0.16
1711 Description: Update to SLES9 kernel-2.6.5-7.287.3.
1715 Description: Update to RHEL4 latest kernel.
1717 Severity : enhancement
1719 Description: Build SLES10 patchless client fails
1720 Details : The configure was broken by run ./configure with
1721 --with-linux-obj=.... argument for patchless client. When the
1722 configure use --with-linux-obj, the LINUXINCLUDE= -Iinclude
1723 can't search header adequately. Use absolute path such as
1724 -I($LINUX)/include instead.
1728 Description: interrupt oig_wait produce painc on resend.
1729 Details : brw_redo_request can be used for resend requests from ptlrpcd and
1730 private set, and this produce situation when rq_ptlrpcd_data not
1731 copyed to new allocated request and triggered LBUG on assert
1732 req->rq_ptlrpcd_data != NULL. But this member used only for wakeup
1733 ptlrpcd set if request is changed and can be safety changed to use
1738 Description: LASSERT_{REQ,REP}SWAB macros are buggy
1739 Details : If SWAB_PARANOIA is disabled, the LASSERT_REQSWAB and
1740 LASSERT_REPSWAB macros become no-ops, which is incorrect. Drop
1741 these macros and replace them with their difinitions instead.
1745 Description: Update kernel patches for SLES10 2.6.16.53-0.8.
1746 Details : Update which_patch & target file for SLES10 latest kernel.
1749 Description: Remove client patches from SLES 10 kernel.
1750 Details : This causes SLES 10 clients to behave as patchless clients
1751 even on a Lustre-patched (server) kernel.
1753 Severity : enhancement
1755 Description: self-adjustable client's lru lists
1756 Details : use adaptive algorithm for managing client cached locks lru
1757 lists according to current server load, other client's work
1758 pattern, memory activities, etc. Both, server and client
1759 side namespaces provide number of proc tunables for controlling
1762 Severity : enhancement
1764 Description: light-weight GSS support
1765 Details : Support krb5n and krb5a mode, which keep Kerberos 5 authentication
1766 and reduce performance overhead.
1768 Severity : enhancement
1770 Description: Linux keyring support
1771 Details : Support using service of Linux keyring for Lustre GSS internal
1772 context refresh/cache mechanism.
1776 Description: Fix errors in lfs documentation
1777 Details : Fixes man pages
1781 Description: don't use GFP_* in generic Lustre code.
1782 Details : Use cfs_alloc_* functions and CFS_* flags for code portability.
1786 Description: obdclass is limited by single OBD_ALLOC(idarray)
1787 Details : replace OBD_ALLOC/OBD_FREE with OBD_VMALLOC/OBD_VFREE
1791 Description: warnings with build patchless client with vanila 2.6.19 and up
1792 Details : change old ctl_table style and replace ctl_table/ctl_table_header
1793 with cfs_sysctl_table_t/cfs_sysctl_table_header_t
1797 Frequency : Only for SLES
1798 Description: sanity_quota fail test_1
1799 Details : There are multiple occurences of $TSTUSR in SLES's /etc/group
1800 file, which makes TSTID[2] inunique.
1804 Frequency : Only for SLES9
1805 Description: Kernel patches for SLES9 2.6.5-7.286 kernel
1806 Details : Update target/ChangeLog/which_patch .
1810 Frequency : Only for test_10 in sanity-quota.sh
1811 Description: a bug in quota test code
1812 Details : checking a test flag in a wrong place
1816 Frequency : Only for test_13 in sanity-quota.sh
1817 Description: a bug in quota test script
1818 Details : shouldn't check overfull allocated quota
1822 Description: jbd statistics
1823 Details : Port older jbd statistics patch for sles10
1825 Severity : enhancement
1827 Description: Add printing inode info into message about error in writepage.
1832 Description: reply_lock_interpret crash due to race with it and lock cancel.
1833 Details : Do not replay locks that are being cancelled. Do not reference
1834 locks by their address during replay, just by their handle.
1838 Frequency : When flocks are used.
1839 Description: assertion failure in ldlm_cli_enquque_fini for non NULL lock.
1840 Details : Flock locks might destroy just granted lock if it could be merged
1841 with another existing flock, this is done in completion handler,
1842 so teach ldlm_cli_enquque_fini that this is a valid case for
1848 Description: Oops in read and write path when failing to allocate lock.
1849 Details : Check if lock allocation failed and return error back.
1853 Description: lstripe command fails for valid OST index
1854 Details : The stripe offset is compared to lov->desc.ld_tgt_count
1855 instead of lov->desc.ld_active_tgt_count.
1859 Description: sanity.sh failed test 103
1860 Details : RHEL mis-interpret setfacl "-X" param, so we won't test setfacl
1865 Description: df doesn't work properly if diskfs blocksize != 4K
1866 Details : Choose biggest blocksize of OST's as the LOV's blocksize.
1870 Description: lfs find on -1 stripe looping in lsm_lmm_verify_common()
1871 Details : Avoid lov_verify_lmm_common() on directory with -1 stripe count.
1873 Severity : enhancement
1875 Description: Adaptive timeouts
1876 Details : RPC timeouts adapt to changing server load and network
1877 conditions to reduce resend attempts and improve recovery time.
1881 Description: llapi_file_create() does not allow some changes
1882 Details : add llapi_file_open() that allows specifying the mode and
1883 open flags, and also returns an open file handle.
1887 Description: merge and cleanup kernel patches.
1888 Details : Remove mnt_lustre_list in vfs_intent-2.6-rhel4.patch.
1892 Description: Add journal checksum support.(Kernel part)
1893 Details : The journal checksum feature adds two new flags i.e
1894 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and
1895 JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag
1896 indicates that the commit block contains the checksum for
1897 the blocks described by the descriptor blocks. Now commit
1898 record can be sent to disk without waiting for descriptor
1899 blocks to be written to disk. This behavior is controlled
1900 using JBD2_FEATURE_ASYNC_COMMIT flag.
1904 Description: OSS needs mutliple precreate threads
1905 Details : Add ability to start more than one create thread per OSS.
1909 Description: Sanity.sh test_65k failed: setstripe should have succeeded
1910 Details : execute lfs setstripe on client
1914 Description: mds_obd_create error creating tmp object
1915 Details : When the user sets quota on root, llog will be affected and can't
1916 create files and write files.
1919 Frequency : Always on ia64 patchless client, and possibly others.
1921 Description: Add EXPORT_SYMBOL check for node_to_cpumask symbol.
1922 Details : This allows the patchless client to be loaded on architectures
1923 without this export.
1927 Description: RedHat Update kernel for RHEL5
1928 Details : Add the kernel config file for RHEL5.
1932 Description: RedHat Update kernel for RHEL5
1933 Details : Modify the kernel config file more closer RHEL5.
1937 Description: Build failure against Centos5 (RHEL5)
1938 Details : Define PAGE_SIZE when it isn't present.
1942 Description: test_7 on sanity-quota.sh can't be used on separate machines
1943 Details : add facet to handle it
1947 Description: "ll_intent_file_open()) lock enqueue: err: -13" with nfs
1948 Details : with NFS, the anon dentry's parent was set to itself in
1949 d_alloc_anon(), so in MDS, we use rec->ur_fid1 to find the
1950 corresponding dentry other than use rec->ur_name.
1952 Severity : enhancement
1954 Description: lfs setstripe enhancement
1955 Details : Make lfs setstripe understand 'k', 'm' and 'g' for stripe size.
1959 Description: enable data checksumming by default
1960 Details : enable checksum by default, allow --disable-checksum
1961 configure option and "-o nochecksum" mount option. Checksums
1962 can also be disabled at runtime via $LPROC/osc/*/checksum_pages.
1966 Description: lustre support for RHEL5
1967 Details : Add support for RHEL5.
1971 Description: Client eviction due to failover config
1972 Details : after a connection loss, the lustre client should attempt to
1973 reconnect to the last active server first before trying the
1974 other potential connections.
1978 Description: when mds and osts use different quota unit(32bit and 64bit),
1979 quota will be released repeatly.
1980 Details : void sending multiple quota reqs to mds, which will keep the
1981 status between the reqs.
1985 Description: osts not allocated evenly to files
1986 Details : change the condition to increase offset_idx
1989 Frequency : Always for filesystems larger than 2TB on 32-bit systems.
1991 Description: Data corruption for OSTs that are formatted larger than 2TB
1993 Details : When generating the bio request for lustre file writes the
1994 sector number would overflow a temporary variable before being
1995 used for the IO. The data reads correctly from Lustre (which
1996 will overflow in a similar manner) but other file data or
1997 filesystem metadata may be corrupted in some cases.
2001 Description: Tune the kernel for good SCSI performance.
2002 Details : Set the value of /sys/block/{dev}/queue/max_sectors_kb
2003 to the value of /sys/block/{dev}/queue/max_hw_sectors_kb
2008 Description: rewrite ext2-derived code in obdclass/uuid.c
2009 Details : rewrite inherited code (uuid parsing code from ext2 utils)
2010 from scratch preserving functionality.
2014 Description: "lfs find -obd UUID" prints directories
2015 Details : "lfs find -obd UUID" will return all directory names instead
2016 of just file names. It is incorrect because the directories
2017 do not reside on the OSTs.
2021 Description: use i_size_read and i_size_write in 2.6 port
2022 Details : replace inode->i_size access with i_size_read/write()
2025 Frequency : when removing large files
2027 Description: scheduling issue during removal of large Lustre files
2028 Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
2029 It causes scheduling issues when removing large files (17TB in the
2033 Frequency : only with liblustre clients on XT3
2035 Description: evictions taking too long
2036 Details : allow llrd to evict clients directly on OSTs
2039 Frequency : only on ppc
2041 Description: /proc/fs/lustre/devices broken on ppc
2042 Details : The patch as applied to 1.6.2 doesn't look correct for all arches.
2043 We should make sure the type of 'index' is loff_t and then cast
2044 explicitly as needed below. Do not assign an explicitly cast
2048 Frequency : only for rhel5
2050 Description: Kernel patches update for RHEL5 2.6.18-8.1.10.el5.
2051 Details : Modify the target file & which_kernel.
2053 Severity : enhancement
2055 Description: omit set fsid for export NFS
2056 Details : fix set/restore device id for avoid EMFILE error and mark lustre
2057 fs as FS_REQUIRES_DEV for avoid problems with generate fsid.
2061 Frequency : Always, for kernels after 2.6.16
2062 Description: Fix warning idr_remove called for id=.. which is not allocated.
2063 Details : Last kernels save old s_dev before kill super and not allow
2064 to restore from callback - restore it before call kill_anon_super.
2068 Description: buffer overruns could theoretically occur
2069 Details : llapi_semantic_traverse() modifies the "path" argument by
2070 appending values to the end of the origin string, and a
2071 overrun may occur. Adding buffer overrun check in liblustreapi.
2075 Description: Fix error on 'ls .' at the top of the Lustre mount.
2076 Details : Don't revalidate dentry if it is a root dentry.
2080 Description: Kernel patches update for RHEL4 2.6.9-55.0.6.
2081 Details : Modify vm-tunables-rhel4.patch.
2085 Description: Kernel config for 2.6.18-vanilla.
2086 Details : Modify targets/2.6-vanilla.target.in.
2087 Add config file kernel-2.6.18-2.6-vanilla-i686.config.
2088 Add config file kernel-2.6.18-2.6-vanilla-i686-smp.config.
2089 Add config file kernel-2.6.18-2.6-vanilla-x86_64.config.
2090 Add config file kernel-2.6.18-2.6-vanilla-x86_64-smp.config.
2094 Description: improve handling recoverable errors
2095 Details : if request processig with error which can be recoverable on server
2096 request should be resend, otherwise page released from cache and
2101 Description: Kernel patches update for RHEL5 2.6.18-8.1.14.el5.
2102 Details : Modify target file & which_patch.
2103 A flaw was found in the IA32 system call emulation provided
2104 on AMD64 and Intel 64 platforms. An improperly validated 64-bit
2105 value could be stored in the %RAX register, which could trigger an
2106 out-of-bounds system call table access. An untrusted local user
2107 could exploit this flaw to run code in the kernel
2108 (ie a root privilege escalation). (CVE-2007-4573).
2112 Description: O_DIRECT bypasses client statistics.
2113 Details : When running with O_DIRECT I/O, neither the client rpc_stats nor
2114 read_ahead_stats were updated. copied the stats section from
2115 osc_send_oap_rpc() into async_internal().
2119 Description: Add jbd statistics patch for RHEL5 and 2.6.18-vanilla
2123 Description: change order of libsysio includes
2124 Details : '#include sysio.h' should always come before '#include xtio.h'
2128 Description: handle "serious error: objid * already exists" more gracefully
2129 Details : If LAST_ID value on disk is smaller than the objects existing in
2130 the O/0/d* directories, it indicates disk corruption and causes an
2131 LBUG(). If the object is 0-length, then we should use the existing
2132 object. This will help to avoid a full fsck in most cases.
2134 Severity : enhancement
2136 Description: adapt the lustre_config script to support the upgrade case
2137 Details : Add "-u" option for lustre_config script to support upgrading 1.4
2138 server targets to 1.6 in parallel.
2142 Description: To avoid grant space > avaible space when the disk is almost
2143 full. Without this patch you might see the error "grant XXXX >
2144 available" or some LBUG about grant, when the disk is almost
2146 Details : In filter_check_grant, for non_grant cache write, we should
2147 check the left space by if (*left > ungranted + bytes), instead
2148 of (*left > ungranted), because only we are sure the left space
2149 is enough for another "bytes", then the ungrant space should be
2150 increase. In client, we should update cl_avail_grant only there
2151 is OBD_MD_FLGRANT in the reply.
2155 Description: Update RHEL 4 kernel to fix local root privilege escalation.
2156 Details : Update to the latest RHEL 4 kernel to fix the vulnerability
2157 described in CVE-2007-4573. This problem could allow untrusted
2158 local users to gain root access.
2161 Frequency : when using O_DIRECT and quotas
2163 Description: Incorrect file ownership on O_DIRECT output files
2164 Details : block usage reported by 'lfs quota' does not take into account
2165 files that have been written with O_DIRECT.
2170 Description: touch file failed when fs is not full
2171 Details : OST in recovery should not be discarded by MDS in alloc_qos(),
2172 otherwise we can get ENOSP while fs is not full.
2176 Description: parallel lock callbacks
2177 Details : Instead of sending blocking and completion callbacks as separated
2178 requests, adding them to a set and sending in parallel.
2181 Frequency : only for Cray XT3
2182 Bugzilla : 12829/13455
2183 Description: Changing primary group doesn't change the group lustre assigns to
2185 Details : When CRAY_XT3 is defined, the fsgid supplied by the client is
2186 overridden with the primary group provided by the group upcall,
2187 whereas the supplied fsgid can be trusted if it is in the list of
2188 supplementary groups returned by the group upcall.
2190 Severity : enhancement
2192 Description: Allow masking D_WARNING, D_ERROR messages from console
2193 Details : Console messages can now be disabled via lnet.printk.
2197 Description: User code with malformed file open parameter crashes client node
2198 Details : Before packing join_file req, all the related reference should be
2199 checked carefully in case some malformed flags cause fake
2200 join_file req on client.
2204 Description: LDLM_ENQUEUE races with LDLM_CP_CALLBACK
2205 Details : ldlm_completion_ast() assumes that a lock is granted when the req
2206 mode is equal to the granted mode. However, it should also check
2207 that LDLM_FL_CP_REQD is not set.
2211 Description: Heavy nfs access might result in deadlocks
2212 Details : After ELC code landed, it is now improper to enqueue any mds
2213 locks under och_sem, because enqueue might want to decide to
2214 cancel open locks for same inode we are holding och_sem for.
2218 Description: Client eviction while running blogbench
2219 Details : A lot of unlink operations with concurrent I/O can lead to a
2220 deadlock causing evictions. To address the problem, the number of
2221 oustanding OST_DESTROY requests is now throttled to
2222 max_rpcs_in_flight per OSC and LDLM_FL_DISCARD_DATA blocking
2223 callbacks are processed in priority.
2227 Description: enable ACLs on MDS by default
2228 Details : ACLs must be enabled on MDS by default.
2231 Frequency : PPC/PPC64 only
2233 Description: conflicts between asm-ppc64/types.h and lustre_types.h
2234 Details : fix duplicated definitions between asm-ppc64/types.h and
2235 lustre_types.h on PPC.
2238 Frequency : PPC/PPC64 only
2240 Description: asm-ppc/segment.h does not exist
2241 Details : fix compile issue on PPC.
2245 Description: better handle error messages in extents code
2248 Frequency : RHEL4 only
2250 Description: mkfs is very slow on IA64/RHEL4
2251 Details : A performance regression has been discovered in the MPT Fusion
2252 driver between versions 3.02.73rh and 3.02.99.00rh. As a
2253 consequence, we have downgraded the MPT Fusion driver in the RHEL4
2254 kernel from 3.02.99.00 to 3.02.73 until this problem is fixed.
2256 Severity : enhancement
2258 Description: SNMP support enhancement
2259 Details : Adding total number of sampled request for an MDS node in snmp
2262 Severity : enhancement
2264 Description: Optimize ldlm waiting list processing for PR extent locks
2265 Details : When processing waiting list for read extent lock and meeting read
2266 lock that is same or wider to it that is not contended, skip
2267 processing rest of the list and immediatelly return current
2268 status of conflictness, since we are guaranteed there are no
2269 conflicting locks in the rest of the list.
2273 Description: Time out and refuse to reconnect
2274 Details : When the failover node is the primary node, it is possible
2275 to have two identical connections in imp_conn_list. We must
2276 compare not conn's pointers but NIDs, otherwise we can defeat
2277 connection throttling.
2281 Description: port llog fixes from b1_6 into HEAD
2282 Details : Port llog reference couting and some llog cleanups from b1_6
2283 (bug 10800) into HEAD, for protect from panic and access to already
2284 free llog structures.
2288 Description: Detect stride IO mode in read-ahead
2289 Details : When a client does stride read, read-ahead should detect that and
2290 read-ahead pages according to the detected stride pattern.
2294 Description: data checksumming impacts single node performance
2295 Details : add support for several checksum algorithm. Currently, only CRC32
2296 and Adler-32 are supported. The checksum type can be changed on
2297 the fly via /proc/fs/lustre/osc/*/checksum_type.
2301 Description: use adler32 for page checksums
2302 Details : when available, use the Adler-32 algorithm instead of CRC32 for
2307 Description: build for x2 fails
2308 Details : fix compile issue on Cray systems.
2312 Description: Properly match for duplicate locks
2313 Details : Due to different lock order from skiplists code, we need to
2314 traverse entire list for now
2317 Frequency : only on PPC/SLES10
2319 Description: "BITS_PER_LONG is not 32 or 64" in linux/idr.h
2320 Details : On SLES10/PPC, fs.h includes idr.h which requires BITS_PER_LONG to
2321 be defined. Add a hack in mkfs_lustre.c to work around this compile
2326 Description: LASSERT on MDS when client holding flock lock dies
2327 Details : ldlm pool logic depends on number of granted locks equal to
2328 number of released locks which is not true for flock locks, so
2329 just exclude such locks from consideration.
2333 Description: MDS deadlock with many ll_sync_lov threads and I/O stalled
2334 Details : Use fsfilt_sync() for both the whole filesystem sync and
2335 individual file sync to eliminate dangerous inode locking
2336 with I_LOCK that can lead to a deadlock.
2340 Description: performance in 1.6.3
2341 Details : Force q->max_phys_segments to MAX_PHYS_SEGMENTS on SLES10 to be
2342 sure that 1MB requests are not fragmented by the block layer.
2344 Severity : enhancement
2346 Description: organize the server-side client stats on per-nid basis
2347 Details : Change the structure of stats under obdfilter and mds to
2355 The "uuid"s file would list the uuids of _active_ exports.
2356 And the clear entry is to clear all stats and stale nids.
2358 Severity : enhancement
2360 Description: eliminate client locks in face of contention
2361 Details : file contention detection and lockless i/o implementation
2362 for contended files.
2366 Description: Reinitialize optind to 0 so that interactive lfs works in all cases
2369 Frequency : very rare, if additional xattrs are used on kernels >= 2.6.12
2371 Description: MDS may lose file striping (and hence file data) in some cases
2372 Details : If there are additional extended attributes stored on the MDS,
2373 in particular ACLs, SELinux, or user attributes (if user_xattr
2374 is specified for the client mount options) then there is a risk
2375 of attribute loss. Additionally, the Lustre file striping
2376 needs to be larger than default (e.g. striped over all OSTs),
2377 and an additional attribute must be stored initially in the
2378 inode and then increase in size enough to be moved to the
2379 external attribute block (e.g. ACL growing in size) for file
2384 Description: skiplist implementation simplification
2385 Details : skiplists are used to group compatible locks on granted list
2386 that was implemented as tracking first and last lock of each
2387 lock group the patch changes that to using doubly linked lists
2391 Description: MDS LBUG: ASSERTION(!IS_ERR(dchild))
2392 Details : Change LASSERTs to client eviction (i.e. abort client's recovery)
2393 because LASSERT on both the data supplied by a client, and the
2394 data on disk is dangerous and incorrect.
2396 Severity : enhancement
2398 Description: Slow truncate/writes to huge files at high offsets.
2399 Details : Directly associate cached pages to lock that protect those pages,
2400 this allows us to quickly find what pages to write and remove
2401 once lock callback is received.
2405 Description: more ldlm soft lockups
2406 Details : In ldlm_resource_add_lock(), call to ldlm_resource_dump()
2407 starve other threads from the resource lock for a long time in
2408 case of long waiting queue, so change the debug level from
2409 D_OTHER to the less frequently used D_INFO.
2411 Severity : enhancement
2413 Description: add -gid, -group, -uid, -user options to lfs find
2417 Description: Hung threads in invalidate_inode_pages2_range
2418 Details : The direct IO path doesn't call check_rpcs to submit a new RPC
2419 once one is completed. As a result, some RPCs are stuck in the
2420 queue and are never sent.
2424 Description: filter threads hungs on waiting journal commit
2425 Details : Cleanup filter group llog code, then only filter group llog will
2426 be only created in the MDS/OST syncing process.
2430 Description: Procfs and llog threads access destoryed import sometimes.
2431 Details : Sync the import destoryed process with procfs and llog threads by
2432 the import refcount and semaphore.
2434 Severity : enhancement
2436 Description: openlock cache of b1_6 port to HEAD
2441 Description: kernel BUG at ldiskfs2_ext_new_extent_cb
2442 Details : If insertion of an extent fails, then discard the inode
2443 preallocation and free data blocks else it can lead to duplicate
2448 Description: don't always update ctime in ext3_xattr_set_handle()
2449 Details : Current xattr code updates inode ctime in ext3_xattr_set_handle.
2450 In some cases the ctime should not be updated, for example for
2451 2.0->1.8 compatibility it is necessary to delete an xattr and it
2452 should not update the ctime.
2456 Bugzilla : 15713/16362
2457 Description: Assertion in iopen_connect_dentry in 1.6.3
2458 Details : looking up an inode via iopen with the wrong generation number can
2459 populate the dcache with a disconneced dentry while the inode
2460 number is in the process of being reallocated. This causes an
2461 assertion failure in iopen since the inode's dentry list contains
2462 both a connected and disconnected dentry.
2466 Description: assertion failure in ldlm_handle2lock()
2467 Details : fix a race between class_handle_unhash() and class_handle2object()
2468 introduced in lustre 1.6.5 by bug 13622.
2473 Description: Kernel BUG: sd_iostats_bump: unexpected disk index
2474 Details : remove the limit of 256 scsi disks in the sd_iostat patch
2479 Description: oops in sd_iostats_seq_show()
2480 Details : unloading/reloading the scsi low level driver triggers a kernel
2481 bug when trying to access the sd iostat file.
2486 Description: Kernel panics during QLogic driver reload
2487 Details : REQ_BLOCK_PC requests are not handled properly in the sd iostat
2488 patch, causing memory corruption.
2493 Description: journal_dev option does not work in b1_6
2494 Details : pass mount option during pre-mount.
2496 Severity : enhancement
2498 Description: Add a FIEMAP(FIle Extent MAP) ioctl
2499 Details : FIEMAP ioctl will allow an application to efficiently fetch the
2500 extent information of a file. It can be used to map logical blocks
2501 in a file to physical blocks in the block device.
2505 Description: LDLM soft lockups - improvement
2506 Details : It is be possible to send the lock handle along with each read
2507 or write request because the client is already doing a lock match
2508 itself so there isn't any reason the OST should have to re-do that
2512 Frequency : only on Cray X2
2514 Description: X2 build failures
2515 Details : fix build failures on Cray X2.
2519 Description: xid & resent requests
2520 Details : Initialize RPC XID from clock at startup (randomly if clock is
2523 Severity : enhancement
2525 Description: Add lustre_start utility to start or stop multiple Lustre servers
2530 Description: Lustre GPF in {:ptlrpc:ptlrpc_server_free_request+373}
2531 Details : In case of memory pressure, list_del() can be called twice on
2532 req->rq_history_list, causing a kernel oops.
2536 Description: kptllnd_peer_check_sends()) ASSERTION(!in_interrupt()) failed
2537 Details : fix stack overflow in the distributed lock manager by defering
2538 export eviction after a failed AST to the elt thread instead of
2539 handling it in the dlm interpret routine.
2543 Description: Convert some comments to new format.
2544 Details : Update documenting comments to match doxygen conventions.
2548 Description: Grammar fixes.
2549 Details : A couple of trivial spelling fixes.
2553 Description: OSD_COUNTERS-mandatory
2554 Details : Make previously optional ->oti_{w,r}_locks sanity checks mandatory
2555 to simplify the code.
2559 Description: simplify cmm_device freeing logic.
2560 Details : Call cmm_device_free() in the failure path of cmm_device_alloc().
2564 Description: Add lockdep support to dt_object_operations locking interface.
2565 Details : Augment ->do_{read,write}_lock() prototypes with a `role'
2566 parameter indicating lock ordering. Update mdd code to use new
2571 Description: Introduce failloc constants for lockless IO tests.
2572 Details : Add two new failloc constants to test lockless IO. Only one of
2573 them in implemented---another is checked in yet to be landed
2578 Description: Add lockdep support for inode mutex.
2579 Details : Introduce and use new LOCK_INODE_MUTEX_PARENT() macro to be used
2580 in the situations where Lustre has to lock more than one inode
2585 Description: Add optional invariants checking support.
2586 Details : Add new LINVRNT() macro, optional on new --enable-invariants
2587 configure switch. This macro is to be used for consistency and
2588 sanity checks that are too expensive to be left in `production'
2593 Description: Zap lock->l_granted_mode with explicit LCK_MINMODE.
2594 Details : Use LCK_MINMODE rather than 0 to reset lock->l_granted_mode to
2599 Description: Add lockdep support for ldlm_lock and ldlm_resource.
2600 Details : Use spin_lock_nested() in (the only) situation where more than
2601 one ldlm_lock is locked simultaneously. Also, fix possible
2602 dead-lock in ldlm_lock_change_resource() by enforcing particular
2607 Description: Use struct ldlm_callback_suite in ldlm_lock_create().
2608 Details : Instead of specifying each ldlm_lock call-back through separate
2609 parameter, wrap them into struct ldlm_callback_suite.
2613 Description: Kill join_lru obd method and its callers.
2614 Details : CLIO uses lock weighting policy to keep locks over mmapped regions
2615 in memory---a requirement implemented through ->o_join_lru() obd
2616 method in HEAD. Remove this method and its users.
2620 Description: Add asynchronous ldlm ENQUEUE completion handler.
2621 Details : CLIO posts ENQUEUE requests asynchronously through ptlrpcd---a
2622 case that stock ldlm_completion_ast() cannot handle as it waits
2623 until lock is granted. Introduce new ldlm_completion_ast_async()
2624 for this. Also comment ldlm_completion_ast().
2628 Description: ldlm_error <-> errno conversion.
2629 Details : Add functions to map (rather arbitrary) between LDLM error codes
2630 and standard errno values. CLIO needs this to prevent LDLM specific
2631 constants from escaping ldlm and osc.
2635 Description: Kill unused ldlm_handle2lock_ns() function.
2636 Details : Kill unused ldlm_handle2lock_ns() function.
2640 Description: Add lu_ref support to ldlm_lock
2641 Details : lu_ref support for ldlm_lock and ldlm_resource. See lu_ref patch.
2642 lu_ref fields ->l_reference and ->lr_reference are added to ldlm_lock
2643 and ldlm_resource. LDLM interface has to be changed, because code that
2644 releases a reference on a lock, has to "know" what reference this is.
2645 In the most frequent case
2647 lock = ldlm_handle2lock(handle);
2649 LDLM_LOCK_PUT(lock);
2651 no changes are required. When any other reference (received _not_ from
2652 ldlm_handle2lock()) is released, LDLM_LOCK_RELEASE() has to be called
2653 instead of LDLM_LOCK_PUT().
2655 Arguably, changes are pervasive, and interface requires some discipline
2656 for proper use. On the other hand, it was very instrumental in finding
2657 a few leaked lock references.
2661 Description: Add ldlm_lock_addref_try().
2662 Details : Introduce ldlm_lock_addref_try() function (used by CLIO) that
2663 attempts to addref a lock that might be being canceled
2668 Description: Add ldlm_weigh_callback().
2669 Details : Add new ->l_weigh_ast() call-back to ldlm_lock. It is called
2670 by ldlm_cancel_shrink_policy() to estimate lock "value", instead of
2671 hard-coded `number of pages' logic.
2675 Description: Add lockdep annotations to llog code.
2676 Details : Use appropriately tagged _nested() locking calls in the places
2677 where llog takes more than one ->lgh_lock lock.
2681 Description: Add loi_kms_set().
2682 Details : Wrap kms updates into a helper function.
2686 Description: Constify instances of struct lsm_operations.
2687 Details : Constify instances of struct lsm_operations.
2691 Description: lu_conf support.
2692 Details : On a server, a file system object is uniquely identified
2693 by a fid, which is sufficient to locate and load all object
2694 state (inode). On a client, on the other hand, more data are
2695 necessary instantiate an object. Change lu_object_find() and
2696 friends to take additional `lu_conf' argument describing object.
2697 Typically this includes layout information.
2701 Description: lu_context fixes.
2702 Details : Introduce new lu_context functions that are needed on the client
2703 side, where some system threads (ptlrpcd) are shared by multiple
2704 modules, and so cannot be stopped during module shutdown.
2708 Description: Add start and stop methods to lu_device_type_operations.
2709 Details : Introduce two new methods in lu_device_type_operations, that are
2710 invoked when first instance of a given type is created and last one
2711 is destroyed respectively. This is need by CLIO.
2715 Description: Add lu_ref support to struct lu_device.
2716 Details : Add lu_ref support to lu_object and lu_device. lu_ref is used to
2717 track leaked references.
2721 Description: Introduce lu_kmem_descr.
2722 Details : lu_kmem_descr and its companion interface allow to create
2723 and destroy a number of kmem caches at once.
2727 Description: Fix lu_object finalization race.
2728 Details : Fix a race between lu_object_find() finding an object and its
2729 concurrent finalization. This race is (most likely) not possible
2730 on the server, but might happen on the client.
2734 Description: Introduce lu_ref interface.
2735 Details : lu_ref is a debugging module allowing to track references to
2736 a given object. It is quite cpu expensive, and has to be
2737 explicitly enabled with --enable-lu_ref. See usage description
2742 Description: Factor lu_site procfs stats into a separate function.
2743 Details : Separate lu_site stats printing code into a separate function
2744 that can be reused on a client.
2748 Description: Constify instances of struct {lu,dt,md}_device_operations.
2749 Details : Constify instances of struct {lu,dt,md}_device_operations.
2753 Description: Introduce struct md_site and move meta-data specific parts of
2754 struct lu_site here.
2755 Details : Move md-specific fields out of struct lu_site into special struct
2756 md_site, so that lu_site can be used on a client.
2760 Description: Kill mdd_lov_destroy().
2761 Details : Remove unused mdd code.
2765 Description: Add st_block checking to multistat.c.
2766 Details : Add st_block checking to multistat.c.
2770 Description: Add lu_ref support to struct obd_device.
2771 Details : Add lu_ref tracking to obd_device.
2775 Description: Kill obd_set_fail_loc().
2776 Details : Remove unused code.
2780 Description: Add special type for ptlrpc_request interpret functions.
2781 Details : Add lu_env parameter to ->rq_interpreter call-back. NULL is passed
2782 there. Actual usage will be in CLIO.
2786 Description: Replace RW_LOCK_UNLOCKED() macro with rwlock_init().
2787 Details : Replace RW_LOCK_UNLOCKED() with rwlock_init() as the former
2788 doesn't work with lockdep.
2792 Description: Add rwv.c test program.
2793 Details : New testing program exercising readv(2) and writev(2) (Qian).
2797 Description: Add sendfile.c test program.
2798 Details : New testing program exercising sendfile(2) (Jay).
2802 Description: Ratelimit a message that can be very frequent.
2803 Details : Ratelimit a memory allocation failure message that can
2808 Description: Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2809 Details : Use cdebug_show() in CDEBUG-style macros defined outside of libcfs.
2813 Description: Liblustre build fixes.
2814 Details : Liblustre build fixes.
2818 Description: libcfs: add cfs_{need,cond}_resched() interface.
2819 Details : libcfs: add cfs_{need,cond}_resched() definition and
2820 implementations for Linux, NT, and liblustre.
2822 Severity : enhancement
2824 Description: More exported tunables for mballoc
2825 Details : Add support for tunable preallocation window and new tunables for
2826 large/small requests
2830 Description: Detect corruption of block bitmap and checking for preallocations
2831 Details : Checks validity of on-disk block bitmap. Also it does better
2832 checking of number of applied preallocations. When corruption is
2833 found, it turns filesystem readonly to prevent further corruptions.
2837 Description: (rw.c:1323:ll_read_ahead_pages()) ASSERTION(page_idx > ria->ria_stoff) failed
2838 Details : Once the unmatched stride IO mode is detected, shrink the stride-ahead
2839 window to 0. If it does hit cache miss, and read-pattern is still
2840 stride-io mode, does not reset the stride window, but also does not
2841 increase the stride window length in this case.
2845 Frequency : only for big-endian servers
2846 Description: Check if system is big-endian while mounting fs with extents feature
2847 Details : Mounting a filesystem with extents feature will fail on big-endian
2848 systems since ext3-based ldiskfs is not supported on big-endian
2849 systems. This can be over-riden with "bigendian_extents" mount option.
2851 Severity : enhancement
2853 Description: The root squash functionality
2854 Details : A security feature, which is to prevent users from being able
2855 to mount lustre on their desktop, run as root, and delete
2856 all of the files in the filesystem. The goal is accomplished by
2857 remapping user id (UID) and group id (GID) of the root user to
2858 a UID and GID specified by the system administartor via Lustre
2859 configuration management server (MGS). The functionality also
2860 allows to specify sets of clients for which the remapping does
2865 Description: Excessive recovery window
2866 Details : With AT enabled, the recovery window can be excessively long (6000+
2867 seconds). To address this problem, we no longer use
2868 OBD_RECOVERY_FACTOR when extending the recovery window (the connect
2869 timeout no longer depends on the service time, it is set to
2870 INITIAL_CONNECT_TIMEOUT now) and clients report the old service
2871 time via pb_service_time.
2875 Description: Watchdog triggered on MDS failover
2876 Details : enable OBD_CONNECT_MDT flag when connecting from the MDS so that
2877 the OSTs know that the MDS "UUID" can be reused for the same export
2878 from a different NID, so we do not need to wait for the export to be
2882 Frequency : rare, only if using MMP with Linux RAID
2884 Description: MMP doesn't work with Linux RAID
2885 Details : While using HA for Lustre servers with Linux RAID, it is possible
2886 that MMP will not detect multiple mounts. To make this work we
2887 need to unplug the device queue in RAID when the MMP block is being
2888 written. Also while reading the MMP block, we should read it from
2889 disk and not the cached one.
2891 Severity : enhancement
2893 Description: open file using fid
2894 Details : A file can be opened using just its fid, like
2895 <mntpt>/.lustre/fid/SEQ:OID:VER - this is needed for HSM and replication
2898 Frequency : Only in RHEL5 when mounting multiple ext3 filesystems
2901 Description: "kmem_cache_create: duplicate cache jbd_4k" error message
2902 Details : add proper locking for creation of jbd_4k slab cache
2906 Description: MMP check in ext3_remount() fails without displaying any error
2907 Details : When multiple mount protection fails during remount, proper error
2910 Severity : enhancement
2912 Description: Allow stripe size to be up to 4G-64k
2913 Details : Fix math logic to allow large stripe sizes.
2917 Description: add check for >8TB ldiskfs filesystems
2918 Details : ext3-based ldiskfs does not support greater than 8TB LUNs.
2919 Don't allow >8TB ldiskfs filesystems to be mounted without
2920 force_over_8tb mount option
2925 Descriptoin: OSS complains "too many blocks" and crashes
2926 Details : In filter_commitrw_write():
2927 1. lquota_chkquota();
2928 2. obdo_from_inode();
2929 3. lquota_pending_commit();
2930 "2." has changed uid and gid in this case, then caused
2931 lquota_chkquota() and lquota_pending_commit() to use
2932 different uid and gid. That is the root of the bug.
2936 Descriptoin: getstripe doesn't report stripe count = -1 sanely
2937 Details : Detect and print out the 'stripe count = -1' case properly.
2941 Description: Out or order replies might be lost on replay
2942 Details : In ptlrpc_retain_replayable_request if we cannot find retained
2943 request with tid smaller than one currently being added, add it
2944 to the start, not end of the list.
2946 --------------------------------------------------------------------------------
2948 2007-08-10 Cluster File Systems, Inc. <info@clusterfs.com>
2950 * Support for kernels:
2951 2.6.5-7.283 (SLES 9),
2952 2.6.9-55.EL (RHEL 4),
2953 2.6.16.46-0.14 (SLES 10),
2954 2.6.18.8 vanilla (kernel.org)
2955 * Client support for unpatched kernels:
2956 (see http://wiki.lustre.org/index.php?title=Patchless_Client)
2957 2.6.16 - 2.6.22 vanilla (kernel.org)
2958 * Due to recently discovered recovery problems, we do not recommend
2959 using patchless RHEL 4 clients with this or any earlier release.
2960 * Recommended e2fsprogs version: 1.39.cfs8
2961 * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
2962 * Starting with this release, the ldiskfs backing filesystem required
2963 by Lustre is now in its own package, lustre-ldiskfs. This package
2964 should be installed. It is versioned separately from Lustre and
2965 may be released separately in future.
2969 Description: block reactivating mgc import until all deactivates complete
2970 Details : Fix race when failing back MDT/MGS to itself (testing)
2973 Frequency : at statup only
2975 Description: mds_lov_synchronize race leads to various problems
2976 Details : simultaneous MDT->OST connections at startup can cause the
2977 sync to abort, leaving the OSC in a bad state.
2979 Severity : enhancement
2981 Description: add optional extra BUILD_VERSION info
2982 Details : add a new environment variable (namely LUSTRE_VERS) which allows
2983 to override the lustre version.
2986 Frequency : 2.6.18 servers only
2988 Description: ll_kern_mount() doesn't release the module reference
2989 Details : The ldiskfs module reference count never drops down to 0
2990 because ll_kern_mount() doesn't release the module reference.
2995 Description: server LBUG when using old ost_num_threads parameter
2996 Details : Accept the old ost_num_threads parameter but warn that it
2997 is deprecated, and fix an off-by-one error that caused an LBUG.
3002 Description: Transient SCSI error results in persistent IO issue
3003 Details : iobuf->dr_error is not reinitialized to 0 between two
3007 Frequency : sometimes when underlying device returns I/O errors
3009 Description: OSTs not going read-only during write failures
3010 Details : OSTs are not remounted read-only when the journal commit threads
3011 get I/O errors because fsfilt_ext3 calls journal_start/stop()
3012 instead of the ext3 wrappers.
3016 Description: poor connect scaling with increasing client count
3017 Details : Don't run filter_grant_sanity_check for more than 100 exports
3018 to improve scaling for large numbers of clients.
3021 Frequency : SLES10 only
3023 Description: sanity-quota.sh quotacheck failed: rc = -22
3024 Details : Quotas cannot be enabled on SLES10.
3027 Frequency : liblustre clients only
3029 Description: getdirentries does not give error when run on compute nodes
3030 Details : getdirentries does not fail when the size specified as an argument
3031 is too small to contain at least one entry
3033 Severity : enhancement
3035 Description: Add LNET router traceability for debug purposes
3036 Details : If a checksum failure occurs with a router as part of the
3037 IO path, the NID of the last router that forwarded the bulk data
3038 is printed so it can be identified.
3043 Description: OST "spontaneously" evicts client; client has imp_pingable == 0
3044 Details : Due to a race condition, liblustre clients were occasionally
3045 evicted incorrectly.
3047 Severity : enhancement
3049 Description: lfs setstripe use optional parameters instead of postional
3052 Severity : enhancement
3054 Description: Nanosecond timestamp support for ldiskfs
3055 Details : The on-disk ldiskfs filesystem has added support for nanosecond
3056 resolution timestamps. There is not yet support for this at
3057 the Lustre filesystem level.
3060 Frequency : during server recovery
3062 Description: MDS failing to send precreate requests due to OSCC_FLAG_RECOVERING
3063 Details : request with rq_no_resend flag not awake l_wait_event if they get
3067 Frequency : nfs export on patchless client
3069 Description: connectathon hang when test nfs export over patchless client
3070 Details : Disconnected dentry cannot be found with lookup, so we do not need
3071 to unhash it or make it invalid
3074 Description: fix llapi_lov_get_uuids() to allow many OSTs to be returned
3075 Details: : Change llapi_lov_get_uuids() to read the UUIDs from /proc instead
3076 of using an ioctl. This allows lfsck for > 160 OSTs to succeed.
3081 Description: open req refcounting wrong on reconnect
3082 Details : If reconnect happened between getting open reply from server and
3083 call to mdc_set_replay_data in ll_file_open, we will schedule
3084 replay for unreferenced request that we are about to free.
3085 Subsequent close will crash in variety of ways.
3086 Check that request is still eligible for replay in
3087 mdc_set_replay_data().
3092 Description: disable writes to filesystem when reading health_check file
3093 Details : the default for reading the health_check proc file has changed
3094 to NOT do a journal transaction and write to disk, because this
3095 can cause reads of the /proc file to hang and block HA state
3096 checking on a healthy but otherwise heavily loaded system. It
3097 is possible to return to the previous behaviour during configure
3098 with --enable-health-write.
3100 Severity : enhancement
3102 Description: 64-bit inode version
3103 Details: : Add a on-disk 64-bit inode version for ext3 to track changes made
3104 to the inode. This will be required for version-based recovery.
3109 Description: MDS fails to start if a duplicate client export is detected
3110 Details : in some rare cases it was possible for a client to connect to
3111 an MDS multiple times. Upon recovery the MDS would detect this
3112 and fail during startup. Handle this more gracefully.
3114 Severity : enhancement
3116 Description: Add -o localflock option to simulate old noflock
3118 Details : This will achieve local-only flock/fcntl locks
3124 Description: log_commit_thread vs filter_destroy race leads to crash
3125 Details : Take import reference before releasing llog record semaphore
3130 Description: Wrong request locking in request set processing
3131 Details : ptlrpc_check_set wrongly uses req->rq_lock for proctect add to
3132 imp_delayed_list, in this place should be used imp_lock.
3135 Frequency : when reconnection
3137 Description: Grant Leak when osc reconnect to OST
3138 Details : When osc reconnect ost, OST(filter) should check whether it
3139 should grant more space to client by comparing fed_grant and
3140 cl_avail_grant, and return the granted space to client instead
3141 of "new granted" space, because client will call osc_init_grant
3142 to update the client grant space info.
3145 Frequency : when client reconnect to OST
3147 Description: Grant Leak when osc do resend and replay bulk write
3148 Details : When osc reconnect to OST, OST(filter)should clear grant info of
3149 bulk write request, because the grant info while be sync between
3150 OSC and OST when reconnect, and we should ignore the grant info
3151 these of resend/replay write req.
3156 Description: Grant space more than available left space sometimes.
3157 Details : When then OST is about to be full, if two bulk writing from
3158 different clients came to OST. Accord the avaliable space of the
3159 OST, the first req should be permitted, and the second one
3160 should be denied by ENOSPC. But if the seconde arrived before
3161 the first one is committed. The OST might wrongly permit second
3162 writing, which will cause grant space > available space.
3165 Frequency : when client is evicted
3167 Description: Grant might be wrongly erased when osc is evicted by OST
3168 Details : when the import is evicted by server, it will fork another
3169 thread ptlrpc_invalidate_import_thread to invalidate the
3170 import, where the grant will be set to 0. While the original
3171 thread will update the grant it got when connecting. So if
3172 the former happened latter, the grant will be wrongly errased
3173 because of this race.
3178 Description: Checking Stale with correct fid
3179 Details : ll_revalidate_it should uses de_inode instead of op_data.fid2
3180 to check whether it is stale, because sometimes, we want the
3181 enqueue happened anyway, and op_data.fid2 will not be initialized.
3183 Severity : enhancement
3185 Description: update patchless client
3186 Details : Add support for patchless client with 2.6.20, 2.6.21 and RHEL 5
3189 Frequency : only with 2.4 kernel
3191 Description: random memory corruption
3192 Details : size of struct ll_inode_info is to big for union inode.u and this
3193 can be cause of random memory corruption.
3198 Description: Memory leak in recovery
3199 Details : Lov_mds_md was not free in an error handler in mds_create_object.
3200 It should also check obd_fail before fsfilt_start, otherwise if
3201 fsfilt_start return -EROFS,(failover mds during mds recovery).
3202 then the req will return with repmsg->transno = 0 and rc = EROFS.
3203 and we met hit the assert LASSERT(req->rq_reqmsg->transno ==
3204 req->rq_repmsg->transno) in ptlrpc_replay_interpret. Fcc should
3205 be freed no matter whether fsfilt_commit success or not.
3208 Frequency : only with huge count clients
3210 Description: Prevents from taking the superblock lock in llap_from_page for
3212 Details : using LL_ORIGIN_REMOVEPAGE origin flag instead of LL_ORIGIN_UNKNOW
3213 for llap_from_page call in ll_removepage prevents from taking the
3214 superblock lock for a soon died page.
3219 Description: Not check open intent error before release open handle
3220 Details : in some rare cases, the open intent error is not checked before
3221 release open handle, which may cause
3222 ASSERTION(open_req->rq_transno != 0), because it tries to release
3223 the failed open handle.
3228 Description: Set cat log bitmap only after create log success.
3229 Details : in some rare cases, the cat log bitmap is set too early. and it
3230 should be set only after create log success.
3234 Description: Accessing a block bevice can re-enable I/O when Lustre is
3235 tearing down a device.
3236 Details : dev_clear_rdonly(bdev) must be called in kill_bdev() instead of
3241 Description: service threads may hog cpus when there are a lot of requests
3242 Details : Insert cond_resched to give other threads a chance to use some CPU
3247 Description: the cat log was not initialized in recovery
3248 Details : When mds(mgs) do recovery, the tgt_count might be zero, so the
3249 unlink log on mds will not be initialized until mds post
3250 recovery. And also in mds post recovery, the unlink log will
3251 initialization will be done asynchronausly, so there will be race
3252 between add unlink log and unlink log initialization.
3256 Description: brw_stats were being printed incorrectly
3257 Details : brw_stats were being printed as log2 but all of them were not
3258 recorded as log2. Also remove some code duplication arising from
3259 filter_tally_{read,write}.
3263 Frequency : rare, only in recovery.
3264 Description: ASSERTION(req->rq_type != LI_POISON) failed
3265 Details : imp_lock should be held while iterating over imp_sending_list for
3266 prevent destroy request after get timeout in ptlrpc_queue_wait.
3270 Description: replay-single.sh test 52 fails
3271 Details : A lock's skiplist need to be cleanup when it being unlinked
3272 from its resource list.
3276 Description: Short directio read returns full requested size rather than
3278 Details : Direct I/O operations should return actual amount of bytes
3279 transferred rather than requested size.
3281 Severity : enhancement
3283 Description: metadata RPC reduction (e.g. for rm performance)
3284 Details : decrease the amount of synchronous RPC between clients and servers
3285 by canceling conflicing lock before the operation on the client
3286 and packing thier handles into the main operation RPC to server.
3288 Severity : enhancement
3290 Description: Async OSC create to avoid the blocking unnecessarily.
3291 Details : If an OST has no remaining object, system will block on the
3292 creation when it needs to create a new object on this OST. Now,
3293 ways use pre-created objects when available, instead of blocking on
3294 an empty osc while others are not empty. If we must block, we
3295 block for the shortest possible period of time.
3299 Description: improve handling recoverable errors
3300 Details : if request processig with error which can be recoverable on server
3301 request should be resend, otherwise page released from cache and
3304 Severity : enhancement
3306 Description: refine locking for avoid write wrong info into lov_objid file
3307 Details : fix possible races with add new target and write/update data in
3310 --------------------------------------------------------------------------------
3312 2007-05-03 Cluster File Systems, Inc. <info@clusterfs.com>
3317 Frequency : on some architectures
3319 Description: 1.6 client sometimes fails to mount from a 1.4 MDT
3320 Details : Uninitialized flags sometimes cause configuration commands to
3324 Frequency : patchless clients only
3326 Description: missing __iget() symbol export
3327 Details : The __iget() symbol export is missing. To avoid the need for
3328 this on patchless clients the deathrow inode reaper is turned
3329 off, and we depend on the VM to clean up old inodes. This
3330 dependency was during via the fix for bug 12181.
3332 --------------------------------------------------------------------------------
3334 2007-04-19 Cluster File Systems, Inc. <info@clusterfs.com>
3336 * CONFIGURATION CHANGE. This version of Lustre WILL NOT
3337 INTEROPERATE with older versions automatically. In many cases a
3338 special upgrade step is needed. Please read the
3339 user documentation before upgrading any part of a live system.
3340 * WIRE PROTOCOL CHANGE from previous 1.6 beta versions. This
3341 version will not interoperate with 1.6 betas before beta5 (1.5.95).
3342 * WARNING: Lustre configuration and startup changes are required with
3343 this release. See https://mail.clusterfs.com/wikis/lustre/MountConf
3347 Severity : enhancement
3349 Description: MountConf
3350 Details : Lustre configuration is now managed via mkfs and mount
3351 commands instead of lmc and lconf. New obd types (MGS, MGC)
3352 are added for dynamic configuration management. See
3353 https://mail.clusterfs.com/wikis/lustre/MountConf for
3356 Severity : enhancement
3358 Description: dynamic OST addition
3359 Details : OSTs can now be added to a live filesystem
3361 Severity : enhancement
3363 Description: startup order invariance
3364 Details : MDTs and OSTs can be started in any order. Clients only
3365 require the MDT to complete startup.
3367 Severity : enhancement
3369 Description: parallel, asynchronous orphan cleanup
3370 Details : orphan cleanup is now performed in separate threads for each
3371 OST, allowing parallel non-blocking operation.
3373 Severity : enhancement
3375 Description: optimized stripe assignment
3376 Details : stripe assignments are now made based on ost space available,
3377 ost previous usage, and OSS previous usage, in order to try
3378 to optimize storage space and networking resources.
3380 Severity : enhancement
3382 Description: Permanently set tunables
3383 Details : All writable /proc/fs/lustre tunables can now be permanently
3384 set on a per-server basis, at mkfs time or on a live system.
3386 Severity : enhancement
3388 Description: Lustre message v2
3389 Details : Add lustre message format v2.
3391 Severity : enhancement
3393 Description: client OST exclusion list
3394 Details : Clients can be started with a list of OSTs that should be
3395 declared "inactive" for known non-responsive OSTs.
3399 Description: SPEC SFS validation failure on NFS v2 over lustre.
3400 Details : Changes the blocksize for regular files to be 2x RPC size,
3401 and not depend on stripe size.
3403 Severity : enhancement
3405 Description: Multiple MD RPCs in flight.
3406 Details : Further unserialise some read-only MDS RPCs - learn about intents.
3407 To avoid overly-overloading MDS, introduce a limit on number of
3408 MDS RPCs in flight for a single client and add /proc controls
3409 to adjust this limit.
3411 Severity : enhancement
3413 Description: client read/write statistics
3414 Details : Add client read/write call usage stats for performance
3415 analysis of user processes.
3416 /proc/fs/lustre/llite/*/offset_stats shows non-sequential
3417 file access. extents_stats shows chunk size distribution.
3418 extents_stats_per_process show chunk size distribution per
3421 Severity : enhancement
3423 Description: mds statistics
3424 Details : Add detailed mds operations statistics in
3425 /proc/fs/lustre/mds/*/stats.
3429 Description: Failure of copying files with lustre special EAs.
3430 Details : Client side always return success for setxattr call for lustre
3431 special xattr (currently only "trusted.lov").
3436 Description: Refcount LNET uuids
3437 Details : The global LNET uuid list grew linearly with every startup;
3438 refcount repeated list entries instead of always adding to
3441 Severity : enhancement
3443 Description: Dynamic service threads
3444 Details : Within a small range, start extra service threads
3445 automatically when the request queue builds up.
3448 Frequency : mixed-endian client/server environments
3450 Description: mixed-endian crashes
3451 Details : The new msg_v2 system had some failures in mixed-endian
3454 Severity : enhancement
3456 Description: Easy OST removal
3457 Details : OSTs can be permanently deactivated with e.g. 'lctl
3458 conf_param lustre-OST0001.osc.active=0'
3460 Severity : enhancement
3462 Description: MGS proc entries
3463 Details : Added basic proc entries for the MGS showing what filesystems
3466 Severity : enhancement
3468 Description: provide MGS failover
3469 Details : Added config lock reacquisition after MGS server failover.
3471 Severity : enhancement
3473 Description: add Linux 2.4 support
3474 Details : Added support for RHEL 2.4.21 kernel for 1.6 servers and clients
3478 Description: a large application tries to do I/O to the same resource and dies
3479 in the middle of it.
3480 Details : Check the req->rq_arrival time after the call to
3481 ost_brw_lock_get(), but before we do anything about
3482 processing it & sending the BULK transfer request. This
3483 should help move old stale pending locks off the queue as
3484 quickly as obd_timeout.
3487 Frequency : when an incorrect nid is specified during startup
3489 Description: ptlrpc connect to non-existant node causes kernel crash
3490 Details : LNET can't be re-entered from an event callback, which
3491 happened when we expire a message after the export has been
3492 cleaned up. Instead, hand the zombie cleanup off to another
3495 Severity : enhancement
3497 Description: plain/inodebits lock performance improvement
3498 Details : Grouping plain/inodebits in granted list by their request modes
3499 and bits policy, thus improving the performance of search through
3503 Frequency : only if OST filesystem is corrupted
3505 Description: client incorrectly hits assertion in ptlrpc_replay_req()
3506 Details : for a short time RPCs with bulk IO are in the replay list,
3507 but replay of bulk IOs is unimplemented. If the OST filesystem
3508 is corrupted due to disk cache incoherency and then replay is
3509 started it is possible to trip an assertion. Avoid putting
3510 committed RPCs into the replay list at all to avoid this issue.
3513 Frequency : liblustre (e.g. catamount) on a large cluster with >= 8 OSTs/OSS
3515 Description: System hang on startup
3516 Details : This bug allowed the liblustre (e.g. catamount) client to
3517 return to the app before handling all startup RPCs. This
3518 could leave the node unresponsive to lustre network traffic
3519 and manifested as a server ptllnd timeout.
3521 Severity : enhancement
3523 Description: Add "/proc/sys/lustre/debug_peer_on_timeout"
3524 Details : liblustre envirable: LIBLUSTRE_DEBUG_PEER_ON_TIMEOUT
3525 boolean to control whether to print peer debug info when a
3526 client's RPC times out.
3529 Frequency : only for kernels with patches from Lustre below 1.4.3
3531 Description: Remove old rdonly API
3532 Details : Remove old rdonly API which unused from at least lustre 1.4.3
3535 Frequency : only for devices with external journals
3537 Description: Set external device read-only also
3538 Details : During a commanded failover stop, we set the disk device
3539 read-only while the server shuts down. We now also set any
3540 external journal device read-only at the same time.
3543 Frequency : when upgrading from 1.4 while trying to change parameters
git://git.whamcloud.com / fs / lustre-release.git / blob