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    <title>Whamcloud Community JIRA</title>
    <link>https://jira.whamcloud.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.4.14</version>
        <build-number>940014</build-number>
        <build-date>05-12-2023</build-date>
    </build-info>


<item>
            <title>[LU-457] MDS crash under DDN file stress tests</title>
                <link>https://jira.whamcloud.com/browse/LU-457</link>
                <project id="10000" key="LU">Lustre</project>
                    <description>&lt;p&gt;Running the DDN file stress tests with tests spread across 60 clients, MDS panic&apos;d, &lt;br/&gt;
panic output attached. &lt;/p&gt;</description>
                <environment>Hyperion - LLNL Running chaos-4 , 2.6.18-238.12.1.el5_lustre.g266a955&lt;br/&gt;
1.8.6-RC3 build</environment>
        <key id="11231">LU-457</key>
            <summary>MDS crash under DDN file stress tests</summary>
                <type id="1" iconUrl="https://jira.whamcloud.com/secure/viewavatar?size=xsmall&amp;avatarId=11303&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.whamcloud.com/images/icons/priorities/major.svg">Major</priority>
                        <status id="5" iconUrl="https://jira.whamcloud.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="5">Cannot Reproduce</resolution>
                                        <assignee username="hongchao.zhang">Hongchao Zhang</assignee>
                                    <reporter username="cliffw">Cliff White</reporter>
                        <labels>
                    </labels>
                <created>Thu, 23 Jun 2011 18:39:33 +0000</created>
                <updated>Fri, 13 Apr 2012 09:35:45 +0000</updated>
                            <resolved>Fri, 13 Apr 2012 09:35:45 +0000</resolved>
                                    <version>Lustre 1.8.6</version>
                                                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="16892" author="johann" created="Thu, 23 Jun 2011 19:14:52 +0000"  >&lt;p&gt;2011-06-23 14:55:52 Kernel BUG at mm/slab.c:3482&lt;br/&gt;
2011-06-23 14:55:52 Pid: 9565, comm: ldlm_cn_02 Tainted: G      2.6.18-238.12.1.el5_lustre.g266a955 #1&lt;br/&gt;
2011-06-23 14:55:52 RIP: 0010:&lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8000751c&amp;gt;&amp;#93;&lt;/span&gt;  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8000751c&amp;gt;&amp;#93;&lt;/span&gt; kmem_cache_free+0x89/0x1dd&lt;br/&gt;
2011-06-23 14:55:52 RSP: 0018:ffff814026f15c80  EFLAGS: 00010207&lt;br/&gt;
2011-06-23 14:55:52 RAX: 0000000000000080 RBX: ffff81100104a840 RCX: 0000000000000200&lt;br/&gt;
2011-06-23 14:55:52 RDX: ffff810138039030 RSI: 0000000038039030 RDI: 0000000000000001&lt;br/&gt;
2011-06-23 14:55:52 RBP: ffff81102a4a9a00 R08: 0000000000000000 R09: 0000000000000000&lt;br/&gt;
2011-06-23 14:55:52 R10: ffff81100104a840 R11: 0000000000000158 R12: ffff811028ee5040&lt;br/&gt;
2011-06-23 14:55:52 R13: ffff81100104a840 R14: ffff81302530a0c0 R15: 00000000000000f6&lt;br/&gt;
2011-06-23 14:55:52 FS:  00002aaaab01f6e0(0000) GS:ffff811038155e40(0000) knlGS:0000000000000000&lt;br/&gt;
2011-06-23 14:55:52 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b&lt;br/&gt;
2011-06-23 14:55:52 CR2: 00002aaaaad626e0 CR3: 0000002f43886000 CR4: 00000000000006e0&lt;br/&gt;
2011-06-23 14:55:52 Process ldlm_cn_02 (pid: 9565, threadinfo ffff814026f14000, task ffff814037bab040)&lt;br/&gt;
2011-06-23 14:55:52 Call Trace:&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff886ca3eb&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ldlm_resource_putref_internal+0x3ab/0x460&lt;br/&gt;
2011-06-23 14:55:52 LustreError: 3297:0:(mds_open.c:1693:mds_close()) @@@ no handle for file close ino 81431268: cookie 0x0  req@ffff813fd3b6b000 x1372347904393553/t0 o35-&amp;gt;c339861d-0c0a-b9ee-a39d-9cfe591452c1@NET_0x50000c0a87223_UUID:0/0 lens 408/864 e 0 to 0 dl 1308866169 ref 1 fl Interpret:/0/0 rc 0/0&lt;br/&gt;
2011-06-23 14:55:52 LustreError: 3297:0:(mds_open.c:1693:mds_close()) Skipped 3269 previous similar messages&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff886c58d2&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ldlm_lock_put+0x372/0x3d0&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff886e58a2&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ldlm_request_cancel+0x222/0x330&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8870bd69&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:lustre_pack_reply+0x29/0xb0&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff886e5bcd&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ldlm_handle_cancel+0x21d/0x2e0&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff88707ef5&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:lustre_msg_get_opc+0x35/0xf0&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff886e5f98&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ldlm_cancel_handler+0x308/0x690&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff88707ef5&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:lustre_msg_get_opc+0x35/0xf0&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff887176d9&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ptlrpc_server_handle_request+0x989/0xe00&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff88717e35&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ptlrpc_wait_event+0x2e5/0x310&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8008c85d&amp;gt;&amp;#93;&lt;/span&gt; __wake_up_common+0x3e/0x68&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff88718dc6&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ptlrpc_main+0xf66/0x1120&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8005dfb1&amp;gt;&amp;#93;&lt;/span&gt; child_rip+0xa/0x11&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff88717e60&amp;gt;&amp;#93;&lt;/span&gt; :ptlrpc:ptlrpc_main+0x0/0x1120&lt;br/&gt;
2011-06-23 14:55:52  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8005dfa7&amp;gt;&amp;#93;&lt;/span&gt; child_rip+0x0/0x11&lt;/p&gt;

&lt;p&gt;3478 void kmem_cache_free(struct kmem_cache *cachep, void *objp)&lt;br/&gt;
3479 {&lt;br/&gt;
3480         unsigned long flags;&lt;br/&gt;
3481 &lt;br/&gt;
3482         BUG_ON(virt_to_cache(objp) != cachep);&lt;/p&gt;

&lt;p&gt;It looks like a slab corruption. Cliff, is this easy to reproduce?&lt;/p&gt;</comment>
                            <comment id="16896" author="cliffw" created="Thu, 23 Jun 2011 20:26:35 +0000"  >&lt;p&gt;And we have the second crash, but in a different location.&lt;br/&gt;
Data attached, will reboot Hyperion servers onto 1.8.5-56 at 9 or so PDT unless otherwise advised&lt;/p&gt;</comment>
                            <comment id="16897" author="cliffw" created="Thu, 23 Jun 2011 20:28:11 +0000"  >&lt;p&gt;It seems I can make it crash again, but not the same location.&lt;/p&gt;</comment>
                            <comment id="16899" author="pjones" created="Thu, 23 Jun 2011 20:36:59 +0000"  >&lt;p&gt;HongChao&lt;/p&gt;

&lt;p&gt;Please can you look into this bug as your top priority today and make sure to provide a status update as to your findings (or just what you have looked into) before you leave for the day.&lt;/p&gt;

&lt;p&gt;Thanks&lt;/p&gt;

&lt;p&gt;Peter&lt;/p&gt;</comment>
                            <comment id="16902" author="adilger" created="Fri, 24 Jun 2011 00:17:37 +0000"  >&lt;p&gt;A second crash in a diiferent part of the code makes me think that there is memory corruption happening.&lt;/p&gt;

&lt;p&gt;Do we have any ability to enable slab debug, list debug, etc to try and isolate this problem earlier?&lt;/p&gt;

&lt;p&gt;On very tricky cases, Ricardo had also written a patch that made all allocations &quot;use on once&quot; and any thread that accessed old memory would Oops and dump a stack.  &lt;/p&gt;</comment>
                            <comment id="16908" author="johann" created="Fri, 24 Jun 2011 01:37:58 +0000"  >&lt;p&gt;&amp;gt; A second crash in a diiferent part of the code makes me think that there is memory corruption happening.&lt;/p&gt;

&lt;p&gt;Yes, that&apos;s what i initially suspected.&lt;/p&gt;

&lt;p&gt;&amp;gt; Do we have any ability to enable slab debug, list debug, etc to try and isolate this problem earlier?&lt;/p&gt;

&lt;p&gt;I think the chaos kernel has list debug but no slab debug.&lt;br/&gt;
Also, it would be great to get a crash dump.&lt;/p&gt;</comment>
                            <comment id="16918" author="cliffw" created="Fri, 24 Jun 2011 02:50:04 +0000"  >&lt;p&gt;Reverted to 1.8.5 GA, ext4 version lustre-modules-1.8.5-2.6.18_194.17.1.el5_lustre.1.8.5 lustre-tests-1.8.5-2.6.18_194.17.1.el5_lustre.1.8.5 kernel-2.6.18-194.17.1.el5_lustre.1.8.5 lustre-tools-llnl-1.2-6.ch4.4 lustre-1.8.5-2.6.18_194.17.1.el5_lustre.1.8.5 lustre-ldiskfs-3.1.4-2.6.18_194.17.1.el5_lustre.1.8.5 Have run fsstress for &amp;gt; 45 minutes, no crash, few errors - RAID is still rebuiding. I am attaching the full console log from the last crash, from start of MDT to crash.&lt;/p&gt;</comment>
                            <comment id="16923" author="cliffw" created="Fri, 24 Jun 2011 02:54:04 +0000"  >&lt;p&gt;Spoke (literally) about two minutes too soon, MDT just panic&apos;d - Log attached, previous mds log not attached &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.whamcloud.com/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="16924" author="cliffw" created="Fri, 24 Jun 2011 02:55:04 +0000"  >&lt;p&gt;Crash running 1.8.5 GA -ext4&lt;/p&gt;</comment>
                            <comment id="16934" author="johann" created="Fri, 24 Jun 2011 03:57:01 +0000"  >&lt;p&gt;All crashes are in different area of the code. Those kind of problem are hard to diagnose.&lt;br/&gt;
We really need to recompile the kernel with slab debugging and collect a crash dump.&lt;br/&gt;
If not possible on hyperion, can we try on toro?&lt;br/&gt;
Cliff, can you reproduce it at a smaller scale (small = something that could fit in toro)?&lt;/p&gt;</comment>
                            <comment id="16941" author="hongchao.zhang" created="Fri, 24 Jun 2011 07:29:56 +0000"  >&lt;p&gt;it&apos;s hard to diagnose the problem. in 1.8.5 GA+ext4, the NULL pointer reference in RCU callback context should be a very rare&lt;br/&gt;
case, what kind of problems can cause it? &lt;br/&gt;
can we do this stress test with ext3 (&amp;lt;8TB) under 1.8.6/1.8.5 to check whether it still panics, then isolate the problem to be&lt;br/&gt;
an ext4-related issue?&lt;/p&gt;</comment>
                            <comment id="16944" author="hongchao.zhang" created="Fri, 24 Jun 2011 07:47:05 +0000"  >&lt;p&gt;btw, I have discussed with Yujian, and she said the fsstress was only tested against 2.X before, and the scale was about&lt;br/&gt;
120 clients and no problem, but she was not clear whether the ldiskfs in those tests was against ext4.&lt;/p&gt;</comment>
                            <comment id="16955" author="cliffw" created="Fri, 24 Jun 2011 13:04:01 +0000"  >&lt;p&gt;This is the MDS console log from the second 1.8.6, showing everything from mount to crash&lt;/p&gt;</comment>
                            <comment id="16956" author="cliffw" created="Fri, 24 Jun 2011 13:04:27 +0000"  >&lt;p&gt;Second 1.8.6 crash&lt;/p&gt;</comment>
                            <comment id="16958" author="cliffw" created="Fri, 24 Jun 2011 14:03:14 +0000"  >&lt;p&gt;Replicate 1.8.5 GA crash w/10 clients &lt;/p&gt;</comment>
                            <comment id="16967" author="yujian" created="Sat, 25 Jun 2011 04:07:54 +0000"  >&lt;blockquote&gt;
&lt;p&gt;btw, I have discussed with Yujian, and she said the fsstress was only tested against 2.X before, and the scale was about&lt;br/&gt;
120 clients and no problem, but she was not clear whether the ldiskfs in those tests was against ext4.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;After doing a search on Bugzilla, I found the latest run of this test on Lustre master branch was against 2.0.0 Build 41 (v1_10_0_41):&lt;/p&gt;
&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;Branch: v1_10_0_41(client and servers) - ext3
Distro/Arch: RHEL5/x86_64(client and servers)
Cluster: Hyperion
MDS Node: hyperion-mds7
OSS Node: hyperion-ost[5,6,7]
Client Nodes: 224 (patchless)
Network Type: o2ib
Test: client mount 4 mounts but run fs_test only on 1
Result: bug 22802
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;And it was also run on Lustre b1_8 branch several times, the latest run was against 1.8.2 and passed, please refer to &lt;a href=&quot;https://bugzilla.lustre.org/show_bug.cgi?id=21292&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;bug 21292&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="16970" author="cliffw" created="Sat, 25 Jun 2011 11:57:17 +0000"  >&lt;p&gt;System crashed after 2 hours, but immediately rebooted - no crash dump. Log attached&lt;/p&gt;</comment>
                            <comment id="16971" author="cliffw" created="Sat, 25 Jun 2011 11:58:01 +0000"  >&lt;p&gt;Friday night fsstress crash&lt;/p&gt;</comment>
                            <comment id="16995" author="hongchao.zhang" created="Mon, 27 Jun 2011 08:22:28 +0000"  >&lt;p&gt;in the corrupted slab cache, the block size is 128, and both the previous and next block of the corrupted one are used&lt;br/&gt;
by end IO routine of RAID10, maybe this issue be related to RAID10? but nothing found at the related code in 2.6.18-238.12.1.&lt;/p&gt;</comment>
                            <comment id="17007" author="hudson" created="Mon, 27 Jun 2011 16:43:49 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el6,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el6,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17008" author="hudson" created="Mon, 27 Jun 2011 16:46:50 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el6,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el6,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17012" author="hudson" created="Mon, 27 Jun 2011 17:04:31 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el5,ib_stack=ofa/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el5,ofa #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17013" author="hudson" created="Mon, 27 Jun 2011 17:04:53 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=ubuntu1004,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,ubuntu1004,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17015" author="hudson" created="Mon, 27 Jun 2011 17:16:34 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el5,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el5,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17017" author="hudson" created="Mon, 27 Jun 2011 17:37:22 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=server,distro=el5,ib_stack=ofa/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,server,el5,ofa #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17019" author="hudson" created="Mon, 27 Jun 2011 17:53:41 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=server,distro=el5,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,server,el5,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17023" author="hudson" created="Mon, 27 Jun 2011 18:46:23 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=server,distro=el5,ib_stack=ofa/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,server,el5,ofa #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17025" author="hudson" created="Mon, 27 Jun 2011 19:04:56 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el5,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el5,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17026" author="hudson" created="Mon, 27 Jun 2011 19:09:11 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el5,ib_stack=ofa/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el5,ofa #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17032" author="hudson" created="Mon, 27 Jun 2011 19:37:05 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=server,distro=el5,ib_stack=inkernel/93/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,server,el5,inkernel #93&lt;/a&gt;&lt;br/&gt;
     &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=529529a3dfbb8849f479c15f75e8f875ba5427b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;529529a3dfbb8849f479c15f75e8f875ba5427b4&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17119" author="pjones" created="Tue, 28 Jun 2011 14:56:34 +0000"  >&lt;p&gt;This is suspected to be unrelated to Lustre. The Hyperion configuration has been fixed and Cliff will re-test next week to confirm&lt;/p&gt;</comment>
                            <comment id="17124" author="hudson" created="Tue, 28 Jun 2011 18:18:51 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/red.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el5,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el5,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17125" author="hudson" created="Tue, 28 Jun 2011 18:22:21 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/red.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el5,ib_stack=ofa/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el5,ofa #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17126" author="hudson" created="Tue, 28 Jun 2011 18:24:02 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=server,distro=el5,ib_stack=ofa/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,server,el5,ofa #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17127" author="hudson" created="Tue, 28 Jun 2011 18:26:13 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el6,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el6,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17129" author="hudson" created="Tue, 28 Jun 2011 18:27:49 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=el6,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,el6,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17130" author="hudson" created="Tue, 28 Jun 2011 18:28:17 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el5,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el5,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17131" author="hudson" created="Tue, 28 Jun 2011 18:28:51 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=server,distro=el5,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,server,el5,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17132" author="hudson" created="Tue, 28 Jun 2011 18:29:32 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=x86_64,build_type=client,distro=ubuntu1004,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; x86_64,client,ubuntu1004,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17133" author="hudson" created="Tue, 28 Jun 2011 18:29:56 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=client,distro=el5,ib_stack=ofa/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,client,el5,ofa #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17136" author="hudson" created="Tue, 28 Jun 2011 18:45:07 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=server,distro=el5,ib_stack=ofa/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,server,el5,ofa #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="17137" author="hudson" created="Tue, 28 Jun 2011 18:46:53 +0000"  >&lt;p&gt;Integrated in &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;http://newbuild.whamcloud.com/images/16x16/blue.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt; &lt;a href=&quot;http://newbuild.whamcloud.com/job/lustre-b1_8/./arch=i686,build_type=server,distro=el5,ib_stack=inkernel/95/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lustre-b1_8 &#187; i686,server,el5,inkernel #95&lt;/a&gt;&lt;br/&gt;
     Revert &quot;&lt;a href=&quot;https://jira.whamcloud.com/browse/LU-457&quot; title=&quot;MDS crash under DDN file stress tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-457&quot;&gt;&lt;del&gt;LU-457&lt;/del&gt;&lt;/a&gt; Enable slab debug for RHEL5/x86_64&quot;&lt;/p&gt;

&lt;p&gt;Johann Lombardi : &lt;a href=&quot;http://git.whamcloud.com/gitweb?p=fs/lustre-release.git;a=shortlog;h=refs/heads/b1_8&amp;amp;a=commit&amp;amp;h=a0375b393ef34c457bec68835ed6ac2f37b5a537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a0375b393ef34c457bec68835ed6ac2f37b5a537&lt;/a&gt;&lt;br/&gt;
Files : &lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;lustre/kernel_patches/patches/md-avoid-bug_on-when-bmc-overflow.patch&lt;/li&gt;
	&lt;li&gt;lustre/mds/mds_open.c&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64-smp.config&lt;/li&gt;
	&lt;li&gt;lustre/kernel_patches/kernel_configs/kernel-2.6.18-2.6-rhel5-x86_64.config&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="34696" author="pjones" created="Fri, 13 Apr 2012 09:35:45 +0000"  >&lt;p&gt;Has not happened for a long time so let&apos;s close and reopen if it reoccurs&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="10281" name="crash2.txt" size="33797" author="cliffw" created="Thu, 23 Jun 2011 20:27:14 +0000"/>
                            <attachment id="10282" name="ga-crash" size="13669" author="cliffw" created="Fri, 24 Jun 2011 02:55:04 +0000"/>
                            <attachment id="10288" name="last-crash" size="8545" author="cliffw" created="Sat, 25 Jun 2011 11:58:01 +0000"/>
                            <attachment id="10279" name="mds-er1.txt" size="7356" author="cliffw" created="Thu, 23 Jun 2011 18:39:33 +0000"/>
                            <attachment id="10285" name="mds-log" size="235618" author="cliffw" created="Fri, 24 Jun 2011 13:04:27 +0000"/>
                            <attachment id="10286" name="replication.txt" size="25858" author="cliffw" created="Fri, 24 Jun 2011 14:03:35 +0000"/>
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