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<channel>
    <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-1844] sanityn, subtest test_16: list_del corruption when run ofd + ldiskfs</title>
                <link>https://jira.whamcloud.com/browse/LU-1844</link>
                <project id="10000" key="LU">Lustre</project>
                    <description>&lt;p&gt;This issue was created by maloo for Minh Diep &amp;lt;mdiep@whamcloud.com&amp;gt;&lt;/p&gt;

&lt;p&gt;This issue relates to the following test suite run: &lt;a href=&quot;https://maloo.whamcloud.com/test_sets/2e5162be-f3ce-11e1-9654-52540035b04c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://maloo.whamcloud.com/test_sets/2e5162be-f3ce-11e1-9654-52540035b04c&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;21:21:07:Lustre: DEBUG MARKER: == sanityn test 16: 2500 iterations of dual-mount fsx ================================================ 21:20:54 (1346473254)&lt;br/&gt;
21:21:08:-----------&lt;del&gt;[ cut here ]&lt;/del&gt;-----------&lt;br/&gt;
21:21:08:WARNING: at lib/list_debug.c:51 list_del+0x8d/0xa0() (Not tainted)&lt;br/&gt;
21:21:08:Hardware name: KVM&lt;br/&gt;
21:21:08:list_del corruption. next-&amp;gt;prev should be ffff8800700f2040, but was (null)&lt;br/&gt;
21:21:08:Modules linked in: nfs fscache osd_ldiskfs(U) fsfilt_ldiskfs(U) ldiskfs(U) lustre(U) ofd(U) ost(U) cmm(U) mdt(U) mdd(U) mds(U) mgs(U) jbd2 obdecho(U) mgc(U) lquota(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) sha512_generic sha256_generic libcfs(U) nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa ib_mad ib_core microcode virtio_balloon 8139too 8139cp mii i2c_piix4 i2c_core ext3 jbd mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod &lt;span class=&quot;error&quot;&gt;&amp;#91;last unloaded: speedstep_lib&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:08:Pid: 5941, comm: jbd2/dm-1-8 Not tainted 2.6.32-279.5.1.el6_lustre.g7f15218.x86_64 #1&lt;br/&gt;
21:21:08:Call Trace:&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8106b747&amp;gt;&amp;#93;&lt;/span&gt; ? warn_slowpath_common+0x87/0xc0&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8106b836&amp;gt;&amp;#93;&lt;/span&gt; ? warn_slowpath_fmt+0x46/0x50&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff812833bd&amp;gt;&amp;#93;&lt;/span&gt; ? list_del+0x8d/0xa0&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81162695&amp;gt;&amp;#93;&lt;/span&gt; ? cache_alloc_refill+0x145/0x240&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8116364f&amp;gt;&amp;#93;&lt;/span&gt; ? kmem_cache_alloc+0x15f/0x190&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81116985&amp;gt;&amp;#93;&lt;/span&gt; ? mempool_alloc_slab+0x15/0x20&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81116a93&amp;gt;&amp;#93;&lt;/span&gt; ? mempool_alloc+0x63/0x140&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084361e&amp;gt;&amp;#93;&lt;/span&gt; ? jbd2_journal_file_buffer+0x4e/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811b259e&amp;gt;&amp;#93;&lt;/span&gt; ? bio_alloc_bioset+0x3e/0xf0&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811b26f5&amp;gt;&amp;#93;&lt;/span&gt; ? bio_alloc+0x15/0x30&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811acde1&amp;gt;&amp;#93;&lt;/span&gt; ? submit_bh+0x81/0x150&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0844d18&amp;gt;&amp;#93;&lt;/span&gt; ? jbd2_journal_commit_transaction+0x578/0x1530 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810096f0&amp;gt;&amp;#93;&lt;/span&gt; ? __switch_to+0xd0/0x320&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8107eabb&amp;gt;&amp;#93;&lt;/span&gt; ? try_to_del_timer_sync+0x7b/0xe0&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084b128&amp;gt;&amp;#93;&lt;/span&gt; ? kjournald2+0xb8/0x220 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810920d0&amp;gt;&amp;#93;&lt;/span&gt; ? autoremove_wake_function+0x0/0x40&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084b070&amp;gt;&amp;#93;&lt;/span&gt; ? kjournald2+0x0/0x220 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091d66&amp;gt;&amp;#93;&lt;/span&gt; ? kthread+0x96/0xa0&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c14a&amp;gt;&amp;#93;&lt;/span&gt; ? child_rip+0xa/0x20&lt;br/&gt;
21:21:09: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091cd0&amp;gt;&amp;#93;&lt;/span&gt; ? kthread+0x0/0xa0&lt;br/&gt;
21:21:10: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c140&amp;gt;&amp;#93;&lt;/span&gt; ? child_rip+0x0/0x20&lt;br/&gt;
21:21:10:--&lt;del&gt;[ end trace 306e4f94d0887a84 ]&lt;/del&gt;--&lt;br/&gt;
21:21:10:BUG: unable to handle kernel NULL pointer dereference at 0000000000000008&lt;br/&gt;
21:21:10:IP: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8128334b&amp;gt;&amp;#93;&lt;/span&gt; list_del+0x1b/0xa0&lt;br/&gt;
21:21:10:PGD 7d32a067 PUD 748d1067 PMD 0 &lt;br/&gt;
21:21:10:Oops: 0000 &lt;a href=&quot;#1&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;1&lt;/a&gt; SMP &lt;br/&gt;
21:21:10:last sysfs file: /sys/module/lockd/initstate&lt;br/&gt;
21:21:10:CPU 0 &lt;br/&gt;
21:21:10:Modules linked in: nfs fscache osd_ldiskfs(U) fsfilt_ldiskfs(U) ldiskfs(U) lustre(U) ofd(U) ost(U) cmm(U) mdt(U) mdd(U) mds(U) mgs(U) jbd2 obdecho(U) mgc(U) lquota(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) sha512_generic sha256_generic libcfs(U) nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa ib_mad ib_core microcode virtio_balloon 8139too 8139cp mii i2c_piix4 i2c_core ext3 jbd mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod &lt;span class=&quot;error&quot;&gt;&amp;#91;last unloaded: speedstep_lib&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:10:&lt;br/&gt;
21:21:11:Pid: 5941, comm: jbd2/dm-1-8 Tainted: G        W  ---------------    2.6.32-279.5.1.el6_lustre.g7f15218.x86_64 #1 Red Hat KVM&lt;br/&gt;
21:21:11:RIP: 0010:&lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8128334b&amp;gt;&amp;#93;&lt;/span&gt;  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8128334b&amp;gt;&amp;#93;&lt;/span&gt; list_del+0x1b/0xa0&lt;br/&gt;
21:21:11:RSP: 0018:ffff8800783e5b30  EFLAGS: 00010046&lt;br/&gt;
21:21:11:RAX: 0000000000000000 RBX: ffff880058bcc040 RCX: 0000000000000014&lt;br/&gt;
21:21:11:RDX: 0000000000000000 RSI: ffff880058bcc070 RDI: ffff880058bcc040&lt;br/&gt;
21:21:11:RBP: ffff8800783e5b40 R08: ffff880058bcc040 R09: 0000000000000000&lt;br/&gt;
21:21:11:R10: 000000000000000f R11: 0000000000000003 R12: ffff88007dd47800&lt;br/&gt;
21:21:11:R13: ffff88007dd46c40 R14: 0000000000000016 R15: ffff880058bcc040&lt;br/&gt;
21:21:11:FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000&lt;br/&gt;
21:21:11:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b&lt;br/&gt;
21:21:11:CR2: 0000000000000008 CR3: 000000007d323000 CR4: 00000000000006f0&lt;br/&gt;
21:21:11:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000&lt;br/&gt;
21:21:11:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400&lt;br/&gt;
21:21:11:Process jbd2/dm-1-8 (pid: 5941, threadinfo ffff8800783e4000, task ffff880070a50080)&lt;br/&gt;
21:21:11:Stack:&lt;br/&gt;
21:21:11: ffff88007dd47800 ffff88007de016c0 ffff8800783e5bb0 ffffffff81162695&lt;br/&gt;
21:21:12:&amp;lt;d&amp;gt; ffff8800783e5bd0 0000000081258fa0 ffff88007dd46c80 0005120001008161&lt;br/&gt;
21:21:12:&amp;lt;d&amp;gt; ffff88007dd46c60 ffff88007dd46c50 ffff88005e9fba40 0000000000000000&lt;br/&gt;
21:21:12:Call Trace:&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81162695&amp;gt;&amp;#93;&lt;/span&gt; cache_alloc_refill+0x145/0x240&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8116364f&amp;gt;&amp;#93;&lt;/span&gt; kmem_cache_alloc+0x15f/0x190&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81116985&amp;gt;&amp;#93;&lt;/span&gt; mempool_alloc_slab+0x15/0x20&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81116a93&amp;gt;&amp;#93;&lt;/span&gt; mempool_alloc+0x63/0x140&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084361e&amp;gt;&amp;#93;&lt;/span&gt; ? jbd2_journal_file_buffer+0x4e/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811b259e&amp;gt;&amp;#93;&lt;/span&gt; bio_alloc_bioset+0x3e/0xf0&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811b26f5&amp;gt;&amp;#93;&lt;/span&gt; bio_alloc+0x15/0x30&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811acde1&amp;gt;&amp;#93;&lt;/span&gt; submit_bh+0x81/0x150&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0844d18&amp;gt;&amp;#93;&lt;/span&gt; jbd2_journal_commit_transaction+0x578/0x1530 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810096f0&amp;gt;&amp;#93;&lt;/span&gt; ? __switch_to+0xd0/0x320&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8107eabb&amp;gt;&amp;#93;&lt;/span&gt; ? try_to_del_timer_sync+0x7b/0xe0&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084b128&amp;gt;&amp;#93;&lt;/span&gt; kjournald2+0xb8/0x220 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810920d0&amp;gt;&amp;#93;&lt;/span&gt; ? autoremove_wake_function+0x0/0x40&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa084b070&amp;gt;&amp;#93;&lt;/span&gt; ? kjournald2+0x0/0x220 &lt;span class=&quot;error&quot;&gt;&amp;#91;jbd2&amp;#93;&lt;/span&gt;&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091d66&amp;gt;&amp;#93;&lt;/span&gt; kthread+0x96/0xa0&lt;br/&gt;
21:21:12: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c14a&amp;gt;&amp;#93;&lt;/span&gt; child_rip+0xa/0x20&lt;br/&gt;
21:21:14: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091cd0&amp;gt;&amp;#93;&lt;/span&gt; ? kthread+0x0/0xa0&lt;br/&gt;
21:21:14: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c140&amp;gt;&amp;#93;&lt;/span&gt; ? child_rip+0x0/0x20&lt;br/&gt;
21:21:14:Code: 4c 8b ad e8 fe ff ff e9 db fd ff ff 90 90 90 90 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 8b 47 08 4c 8b 00 4c 39 c7 75 39 48 8b 03 &amp;lt;4c&amp;gt; 8b 40 08 4c 39 c3 75 4c 48 8b 53 08 48 89 50 08 48 89 02 48 &lt;br/&gt;
21:21:14:RIP  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8128334b&amp;gt;&amp;#93;&lt;/span&gt; list_del+0x1b/0xa0&lt;br/&gt;
21:21:14: RSP &amp;lt;ffff8800783e5b30&amp;gt;&lt;br/&gt;
21:21:14:CR2: 0000000000000008&lt;br/&gt;
21:21:14:Initializing cgroup subsys cpuset&lt;br/&gt;
21:21:14:Initializing cgroup subsys cpu&lt;br/&gt;
21:21:14:Linux version 2.6.32-279.5.1.el6_lustre.g7f15218.x86_64 (jenkins@builder-1-sde1-el6-x8664.lab.whamcloud.com) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Tue Aug 21 01:32:12 PDT 2012&lt;br/&gt;
21:21:14:Command line: ro root=UUID=c2b3ff8f-353b-4a4d-9205-2b60b4c5168e rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD console=ttyS0,115200 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off  memmap=exactmap memmap=613K@4K memmap=131463K@49765K elfcorehdr=181228K memmap=4K$0K memmap=64K$960K memmap=12K$2097140K memmap=272K$4194032K&lt;br/&gt;
21:21:15:KERNEL supported cpus:&lt;/p&gt;</description>
                <environment></environment>
        <key id="15712">LU-1844</key>
            <summary>sanityn, subtest test_16: list_del corruption when run ofd + ldiskfs</summary>
                <type id="1" iconUrl="https://jira.whamcloud.com/secure/viewavatar?size=xsmall&amp;avatarId=11303&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.whamcloud.com/images/icons/priorities/minor.svg">Minor</priority>
                        <status id="6" iconUrl="https://jira.whamcloud.com/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="5">Cannot Reproduce</resolution>
                                        <assignee username="wc-triage">WC Triage</assignee>
                                    <reporter username="maloo">Maloo</reporter>
                        <labels>
                            <label>USE_OFD</label>
                    </labels>
                <created>Thu, 6 Sep 2012 10:49:41 +0000</created>
                <updated>Thu, 26 Dec 2013 17:18:07 +0000</updated>
                            <resolved>Thu, 26 Dec 2013 17:16:51 +0000</resolved>
                                    <version>Lustre 2.3.0</version>
                    <version>Lustre 2.4.0</version>
                                                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="44289" author="mdiep" created="Thu, 6 Sep 2012 10:55:56 +0000"  >&lt;p&gt;this might affect 2.3 as well&lt;/p&gt;</comment>
                            <comment id="44295" author="mdiep" created="Thu, 6 Sep 2012 12:14:23 +0000"  >&lt;p&gt;hit similar on b2.3&lt;/p&gt;


&lt;p&gt;15:29:56:Lustre: DEBUG MARKER: == racer test 1: racer on clients: client-25vm5,client-25vm6.lab.whamcloud.com DURATION=900 == 15:29:51 (1346884191)&lt;br/&gt;
15:29:56:-----------&lt;del&gt;[ cut here ]&lt;/del&gt;-----------&lt;br/&gt;
15:29:56:WARNING: at lib/list_debug.c:30 __list_add+0x8f/0xa0() (Not tainted)&lt;br/&gt;
15:29:56:Hardware name: KVM&lt;br/&gt;
15:29:56:list_add corruption. prev-&amp;gt;next should be next (ffff88003740c020), but was (null). (prev=ffff8800739759c0).&lt;br/&gt;
15:29:56:Modules linked in: osd_ldiskfs(U) fsfilt_ldiskfs(U) ldiskfs(U) lustre(U) ofd(U) ost(U) cmm(U) mdt(U) mdd(U) mds(U) mgs(U) obdecho(U) mgc(U) lquota(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) nfs fscache jbd2 sha512_generic sha256_generic nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 sunrpc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa ib_mad ib_core microcode virtio_balloon 8139too 8139cp mii i2c_piix4 i2c_core ext3 jbd mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod &lt;span class=&quot;error&quot;&gt;&amp;#91;last unloaded: libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
15:29:56:Pid: 16, comm: kblockd/0 Not tainted 2.6.32-279.5.1.el6_lustre.g293c36b.x86_64 #1&lt;br/&gt;
15:29:56:Call Trace:&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8106b747&amp;gt;&amp;#93;&lt;/span&gt; ? warn_slowpath_common+0x87/0xc0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8106b836&amp;gt;&amp;#93;&lt;/span&gt; ? warn_slowpath_fmt+0x46/0x50&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8128345f&amp;gt;&amp;#93;&lt;/span&gt; ? __list_add+0x8f/0xa0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa006a9ee&amp;gt;&amp;#93;&lt;/span&gt; ? do_virtblk_request+0x20e/0x418 &lt;span class=&quot;error&quot;&gt;&amp;#91;virtio_blk&amp;#93;&lt;/span&gt;&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81250520&amp;gt;&amp;#93;&lt;/span&gt; ? blk_unplug_work+0x0/0x70&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81255952&amp;gt;&amp;#93;&lt;/span&gt; ? __generic_unplug_device+0x32/0x40&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8125598e&amp;gt;&amp;#93;&lt;/span&gt; ? generic_unplug_device+0x2e/0x50&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81250556&amp;gt;&amp;#93;&lt;/span&gt; ? blk_unplug_work+0x36/0x70&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81250520&amp;gt;&amp;#93;&lt;/span&gt; ? blk_unplug_work+0x0/0x70&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8108c760&amp;gt;&amp;#93;&lt;/span&gt; ? worker_thread+0x170/0x2a0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810920d0&amp;gt;&amp;#93;&lt;/span&gt; ? autoremove_wake_function+0x0/0x40&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8108c5f0&amp;gt;&amp;#93;&lt;/span&gt; ? worker_thread+0x0/0x2a0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091d66&amp;gt;&amp;#93;&lt;/span&gt; ? kthread+0x96/0xa0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c14a&amp;gt;&amp;#93;&lt;/span&gt; ? child_rip+0xa/0x20&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81091cd0&amp;gt;&amp;#93;&lt;/span&gt; ? kthread+0x0/0xa0&lt;br/&gt;
15:29:56: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100c140&amp;gt;&amp;#93;&lt;/span&gt; ? child_rip+0x0/0x20&lt;br/&gt;
15:29:56:--&lt;del&gt;[ end trace f5bdc39561532b09 ]&lt;/del&gt;--&lt;/p&gt;</comment>
                            <comment id="44319" author="adilger" created="Thu, 6 Sep 2012 17:51:42 +0000"  >&lt;p&gt;List corruption is generally one of two things:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;list_add() of the same item to two different lists&lt;/li&gt;
	&lt;li&gt;random memory corruption somewhere else (often seen in long lists because they touch a lot of memory)&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;I suspect that this may be related to &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-1823&quot; title=&quot;sanity/103: slab corruption&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-1823&quot;&gt;&lt;del&gt;LU-1823&lt;/del&gt;&lt;/a&gt;, which is another apparent case of random memory corruption.&lt;/p&gt;

&lt;p&gt;It might make sense to add on an extra check based on Yu Jian&apos;s change &lt;a href=&quot;http://review.whamcloud.com/3876&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://review.whamcloud.com/3876&lt;/a&gt; to check for these list_add()/list_del corruption messages as well.&lt;/p&gt;</comment>
                            <comment id="44321" author="adilger" created="Thu, 6 Sep 2012 18:04:44 +0000"  >&lt;p&gt;Minh, please always include the Maloo URL for any logs, since this helps analysis later on.&lt;/p&gt;

&lt;p&gt;Could you please comment if this problem is isolated to a single node type (MDS, OSS, client), or whether it happens on different nodes?  It appears that both of these are on the server, but I can&apos;t tell whether it is an MDS or OSS.&lt;/p&gt;</comment>
                            <comment id="44634" author="liwei" created="Tue, 11 Sep 2012 20:46:29 +0000"  >&lt;p&gt;This could be related to &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-1883&quot; title=&quot;osd-ldiskfs fills file offsets into lnb-&amp;gt;offset fields used as page offsets&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-1883&quot;&gt;&lt;del&gt;LU-1883&lt;/del&gt;&lt;/a&gt;?&lt;/p&gt;</comment>
                            <comment id="44672" author="adilger" created="Wed, 12 Sep 2012 06:00:43 +0000"  >&lt;p&gt;It may also be &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-1823&quot; title=&quot;sanity/103: slab corruption&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-1823&quot;&gt;&lt;del&gt;LU-1823&lt;/del&gt;&lt;/a&gt;.  Let&apos;s hope we don&apos;t have more than two different memory corruptions at the same time.&lt;/p&gt;</comment>
                            <comment id="74096" author="adilger" created="Thu, 26 Dec 2013 17:16:51 +0000"  >&lt;p&gt;Ofd is running a long time&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
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                                        <issuelink>
            <issuekey id="15675">LU-1823</issuekey>
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