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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-1474] Test failure on test suite parallel-scale-nfsv3, subtest test_iorssf</title>
                <link>https://jira.whamcloud.com/browse/LU-1474</link>
                <project id="10000" key="LU">Lustre</project>
                    <description>&lt;p&gt;This issue was created by maloo for yujian &amp;lt;yujian@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/c496b4f4-aecd-11e1-b0f7-52540035b04c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://maloo.whamcloud.com/test_sets/c496b4f4-aecd-11e1-b0f7-52540035b04c&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The sub-test test_iorssf failed with the following error:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;test failed to respond and timed out&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Info required for matching: parallel-scale-nfsv3 iorssf&lt;/p&gt;

&lt;p&gt;Console log on the MDS/Lustre Client/NFS server showed that:&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;17:34:14:BUG: unable to handle kernel paging request at fffffffb8a512d10
17:34:14:IP: [&amp;lt;ffffffff81052994&amp;gt;] update_curr+0x144/0x1f0
17:34:14:PGD 1a87067 PUD 0 
17:34:14:Thread overran stack, or stack corrupted
17:34:14:Oops: 0000 [#1] SMP 
17:34:14:last sysfs file: /sys/module/nfsd/initstate
17:34:14:CPU 0 
17:34:14:Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) nfs fscache jbd2 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 [last unloaded: lnet_selftest]
17:34:14:
17:34:14:Pid: 16667, comm: nfsd Not tainted 2.6.32-220.17.1.el6_lustre.g636ddbf.x86_64 #1 Red Hat KVM
17:34:15:RIP: 0010:[&amp;lt;ffffffff81052994&amp;gt;]  [&amp;lt;ffffffff81052994&amp;gt;] update_curr+0x144/0x1f0
17:34:15:RSP: 0018:ffff880002203db8  EFLAGS: 00010086
17:34:15:RAX: ffff880071a40b40 RBX: ffffffff811237e6 RCX: ffff88007faa60c0
17:34:15:RDX: 0000000000018b48 RSI: ffff880071a97538 RDI: ffff880071a40b78
17:34:15:RBP: ffff880002203de8 R08: ffffffff8160b6a5 R09: 0000000000000000
17:34:15:R10: 0000000000000010 R11: 0000000000000000 R12: ffff880002215fe8
17:34:15:R13: 00000000000f469a R14: 000054a5051b5d6b R15: ffff880071a40b40
17:34:15:FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
17:34:15:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
17:34:15:CR2: fffffffb8a512d10 CR3: 0000000037697000 CR4: 00000000000006f0
17:34:15:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
17:34:15:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
17:34:15:Process nfsd (pid: 16667, threadinfo ffff880068a62000, task ffff880071a40b40)
17:34:15:Stack:
17:34:15: ffff880002203dc8 0000000000000000 ffff880071a40b78 ffff880002215fe8
17:34:15:&amp;lt;0&amp;gt; 0000000000000000 0000000000000000 ffff880002203e18 ffffffff81052f4b
17:34:17:&amp;lt;0&amp;gt; ffff880002215f80 0000000000000000 0000000000015f80 0000000000000000
17:34:17:Call Trace:
17:34:17: &amp;lt;IRQ&amp;gt; 
17:34:17: [&amp;lt;ffffffff81052f4b&amp;gt;] task_tick_fair+0xdb/0x160
17:34:17:BUG: unable to handle kernel NULL pointer dereference at 00000000000009e9
17:34:17:IP: [&amp;lt;ffffffff8100f5ad&amp;gt;] print_context_stack+0xad/0x140
17:34:17:PGD 0 
17:34:17:Thread overran stack, or stack corrupted
17:34:17:Oops: 0000 [#2] SMP 
17:34:17:last sysfs file: /sys/module/nfsd/initstate
17:34:17:CPU 0 
17:34:17:Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) nfs fscache jbd2 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 [last unloaded: lnet_selftest]
17:34:17:
17:34:18:Pid: 16667, comm: nfsd Not tainted 2.6.32-220.17.1.el6_lustre.g636ddbf.x86_64 #1 Red Hat KVM
17:34:18:RIP: 0010:[&amp;lt;ffffffff8100f5ad&amp;gt;]  [&amp;lt;ffffffff8100f5ad&amp;gt;] print_context_stack+0xad/0x140
17:34:18:RSP: 0018:ffff8800022038c8  EFLAGS: 00010002
17:34:18:RAX: 0000000000000001 RBX: ffff880002203df0 RCX: 0000000000000000
17:34:18:RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000046
17:34:18:RBP: ffff880002203928 R08: ffffffff81c00740 R09: 0000000000000000
17:34:18:R10: 0000000000000002 R11: 0000000000000001 R12: ffff880002203e18
17:34:18:R13: ffff880068a62000 R14: ffffffff81600460 R15: ffff880002203fc0
17:34:18:FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
17:34:18:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
17:34:18:CR2: 00000000000009e9 CR3: 0000000037697000 CR4: 00000000000006f0
17:34:18:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
17:34:18:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
17:34:18:Process nfsd (pid: 16667, threadinfo ffff880068a62000, task ffff880071a40b40)
17:34:18:Stack:
17:34:18: ffff880000000018 ffff880068a63ff8 ffff880002203e18 ffff880002201fc0
17:34:19:&amp;lt;0&amp;gt; ffffffff81779900 ffffffff81052f4b ffffffff817c60ba ffff880002203db8
17:34:19:&amp;lt;0&amp;gt; 000000000000cbe0 ffffffff81600460 ffffffff81779900 ffff880002203fc0
17:34:19:Call Trace:
17:34:19: &amp;lt;IRQ&amp;gt; 
17:34:19: [&amp;lt;ffffffff81052f4b&amp;gt;] ? task_tick_fair+0xdb/0x160
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;Console log on NFS client showed that:&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;17:37:09:INFO: task IOR:7271 blocked for more than 120 seconds.
17:37:09:&quot;echo 0 &amp;gt; /proc/sys/kernel/hung_task_timeout_secs&quot; disables this message.
17:37:09:IOR           D 0000000000000000     0  7271   7268 0x00000080
17:37:09: ffff880079e21c88 0000000000000082 ffff880077682078 ffff880002215f80
17:37:09: ffff880079e21c48 ffffffff81053190 ffff880079e21c28 ffffffff8106196b
17:37:09: ffff8800750b3b38 ffff880079e21fd8 000000000000f4e8 ffff8800750b3b38
17:37:09:Call Trace:
17:37:09: [&amp;lt;ffffffff81053190&amp;gt;] ? check_preempt_wakeup+0x1c0/0x260
17:37:09: [&amp;lt;ffffffff8106196b&amp;gt;] ? enqueue_task_fair+0xfb/0x100
17:37:09: [&amp;lt;ffffffff8104da7c&amp;gt;] ? check_preempt_curr+0x7c/0x90
17:37:09: [&amp;lt;ffffffff814ee6fe&amp;gt;] __mutex_lock_slowpath+0x13e/0x180
17:37:09: [&amp;lt;ffffffff814ee59b&amp;gt;] mutex_lock+0x2b/0x50
17:37:09: [&amp;lt;ffffffff81113239&amp;gt;] generic_file_aio_write+0x59/0xe0
17:37:09: [&amp;lt;ffffffffa03b4ffe&amp;gt;] nfs_file_write+0xde/0x1f0 [nfs]
17:37:09: [&amp;lt;ffffffff8117661a&amp;gt;] do_sync_write+0xfa/0x140
17:37:09: [&amp;lt;ffffffff81090d30&amp;gt;] ? autoremove_wake_function+0x0/0x40
17:37:09: [&amp;lt;ffffffff8120c646&amp;gt;] ? security_file_permission+0x16/0x20
17:37:09: [&amp;lt;ffffffff81176918&amp;gt;] vfs_write+0xb8/0x1a0
17:37:11: [&amp;lt;ffffffff810d4932&amp;gt;] ? audit_syscall_entry+0x272/0x2a0
17:37:11: [&amp;lt;ffffffff81177321&amp;gt;] sys_write+0x51/0x90
17:37:11: [&amp;lt;ffffffff8100b0f2&amp;gt;] system_call_fastpath+0x16/0x1b
17:38:47:nfs: server client-23vm3 not responding, still trying
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment>&lt;br/&gt;
Lustre Tag: v2_1_2_RC2&lt;br/&gt;
Lustre Build: &lt;a href=&quot;http://build.whamcloud.com/job/lustre-b2_1/87/&quot;&gt;http://build.whamcloud.com/job/lustre-b2_1/87/&lt;/a&gt;&lt;br/&gt;
Distro/Arch: RHEL6.2/x86_64 (kernel version: 2.6.32-220.17.1.el6)&lt;br/&gt;
Network: TCP (1GigE)&lt;br/&gt;
ENABLE_QUOTA=yes&lt;br/&gt;
</environment>
        <key id="14725">LU-1474</key>
            <summary>Test failure on test suite parallel-scale-nfsv3, subtest test_iorssf</summary>
                <type id="1" iconUrl="https://jira.whamcloud.com/secure/viewavatar?size=xsmall&amp;avatarId=11303&amp;avatarType=issuetype">Bug</type>
                                            <priority id="1" iconUrl="https://jira.whamcloud.com/images/icons/priorities/blocker.svg">Blocker</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="3">Duplicate</resolution>
                                        <assignee username="wc-triage">WC Triage</assignee>
                                    <reporter username="maloo">Maloo</reporter>
                        <labels>
                    </labels>
                <created>Tue, 5 Jun 2012 04:34:03 +0000</created>
                <updated>Mon, 13 Aug 2012 13:29:12 +0000</updated>
                            <resolved>Mon, 13 Aug 2012 13:29:12 +0000</resolved>
                                    <version>Lustre 2.1.2</version>
                    <version>Lustre 2.1.3</version>
                                                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="42387" author="wjt27" created="Fri, 27 Jul 2012 07:15:29 +0000"  >&lt;p&gt;I hit the same kernel bug few times on production compute nodes (700 node cluster), can not reproduce this though.&lt;/p&gt;


&lt;p&gt;BUG: unable to handle kernel paging request at fffffffb81d4d0e0&lt;br/&gt;
IP: &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052994&amp;gt;&amp;#93;&lt;/span&gt; update_curr+0x144/0x1f0&lt;br/&gt;
PGD 1a87067 PUD 0&lt;br/&gt;
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;
last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:03:00.0/infiniband/mlx4_0/ports/1/link_layer&lt;br/&gt;
CPU 14&lt;br/&gt;
Modules linked in: lmv(U) mgc(U) lustre(U) lov(U) osc(U) lquota(U) mdc(U) fid(U) fld(U) ko2iblnd(U) ptlrpc(U) obdclass(U) lnet(U) lvfs(U) libcfs(U) nfsd exportfs acpi_cpufreq freq_table mperf rdma_ucm(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ib_cm(U) ib_sa(U) ib_uverbs(U) ib_umad(U) mlx4_ib(U) ib_mad(U) ib_core(U) mlx4_core(U) ext4 mbcache jbd2 dm_mirror dm_region_hash dm_log dm_mod vhost_net macvtap macvlan tun kvm wmi microcode dcdbas sg sb_edac edac_core i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support shpchp ioatdma ipv6 sd_mod crc_t10dif ahci igb dca nfs lockd fscache nfs_acl auth_rpcgss sunrpc &lt;span class=&quot;error&quot;&gt;&amp;#91;last unloaded: scsi_wait_scan&amp;#93;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;Pid: 62164, comm: calculate_propa Tainted: G        W  ----------------   2.6.32-220.23.1.el6.x86_64 #1 Dell Inc. PowerEdge C6220/0WTH3T&lt;br/&gt;
RIP: 0010:&lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052994&amp;gt;&amp;#93;&lt;/span&gt;  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052994&amp;gt;&amp;#93;&lt;/span&gt; update_curr+0x144/0x1f0&lt;br/&gt;
RSP: 0018:ffff88089c4c3db8  EFLAGS: 00010086&lt;br/&gt;
RAX: ffff881027480040 RBX: ffffffff8002ac60 RCX: ffff88086ff111c0&lt;br/&gt;
RDX: 0000000000018b48 RSI: 0000000000000000 RDI: ffff881027480078&lt;br/&gt;
RBP: ffff88089c4c3de8 R08: ffffffff8160b685 R09: 0000000000000000&lt;br/&gt;
R10: 0000000000000010 R11: 0000000000000000 R12: ffff88089c4d5fe8&lt;br/&gt;
R13: 00000000000f39dd R14: 0001ef9177be813f R15: ffff881027480040&lt;br/&gt;
FS:  00007f0c4f098700(0000) GS:ffff88089c4c0000(0000) knlGS:0000000000000000&lt;br/&gt;
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033&lt;br/&gt;
CR2: fffffffb81d4d0e0 CR3: 0000001027514000 CR4: 00000000000406e0&lt;br/&gt;
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000&lt;br/&gt;
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400&lt;br/&gt;
Process calculate_propa (pid: 62164, threadinfo ffff881027528000, task ffff881027480040)&lt;br/&gt;
Stack:&lt;br/&gt;
 ffff88089c4c3dc8 ffffffff81013743 ffff881027480078 ffff88089c4d5fe8&lt;br/&gt;
&amp;lt;0&amp;gt; 0000000000000000 0000000000000000 ffff88089c4c3e18 ffffffff81052f4b&lt;br/&gt;
&amp;lt;0&amp;gt; ffff88089c4d5f80 000000000000000e 0000000000015f80 000000000000000e&lt;br/&gt;
Call Trace:&lt;br/&gt;
 &amp;lt;IRQ&amp;gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81013743&amp;gt;&amp;#93;&lt;/span&gt; ? native_sched_clock+0x13/0x80&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052f4b&amp;gt;&amp;#93;&lt;/span&gt; task_tick_fair+0xdb/0x160&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81056791&amp;gt;&amp;#93;&lt;/span&gt; scheduler_tick+0xc1/0x260&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810a0dc0&amp;gt;&amp;#93;&lt;/span&gt; ? tick_sched_timer+0x0/0xc0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8107c482&amp;gt;&amp;#93;&lt;/span&gt; update_process_times+0x52/0x70&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810a0e26&amp;gt;&amp;#93;&lt;/span&gt; tick_sched_timer+0x66/0xc0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810954ae&amp;gt;&amp;#93;&lt;/span&gt; __run_hrtimer+0x8e/0x1a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81012b59&amp;gt;&amp;#93;&lt;/span&gt; ? read_tsc+0x9/0x20&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81095856&amp;gt;&amp;#93;&lt;/span&gt; hrtimer_interrupt+0xe6/0x250&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814f55fb&amp;gt;&amp;#93;&lt;/span&gt; smp_apic_timer_interrupt+0x6b/0x9b&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100bc13&amp;gt;&amp;#93;&lt;/span&gt; apic_timer_interrupt+0x13/0x20&lt;br/&gt;
 &amp;lt;EOI&amp;gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa009c0e6&amp;gt;&amp;#93;&lt;/span&gt; ? lprocfs_counter_sub+0x86/0x100 &lt;span class=&quot;error&quot;&gt;&amp;#91;lvfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c258&amp;gt;&amp;#93;&lt;/span&gt; cl_page_free+0xe8/0x4c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08fe8dd&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_page_delete+0x6d/0x100 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c89a&amp;gt;&amp;#93;&lt;/span&gt; cl_page_put+0x26a/0x440 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055b08d&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_delete+0x3d/0xf0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0567bde&amp;gt;&amp;#93;&lt;/span&gt; ? cl_io_is_going+0xe/0x20 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ee8e7&amp;gt;&amp;#93;&lt;/span&gt; ll_releasepage+0xd7/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811100b0&amp;gt;&amp;#93;&lt;/span&gt; try_to_release_page+0x30/0x60&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112a4f1&amp;gt;&amp;#93;&lt;/span&gt; shrink_page_list.clone.0+0x4f1/0x5c0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112a8bb&amp;gt;&amp;#93;&lt;/span&gt; shrink_inactive_list+0x2fb/0x740&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112b5cf&amp;gt;&amp;#93;&lt;/span&gt; shrink_zone+0x38f/0x520&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112c374&amp;gt;&amp;#93;&lt;/span&gt; zone_reclaim+0x354/0x410&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112cfc0&amp;gt;&amp;#93;&lt;/span&gt; ? isolate_pages_global+0x0/0x350&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81122874&amp;gt;&amp;#93;&lt;/span&gt; get_page_from_freelist+0x694/0x820&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112aab2&amp;gt;&amp;#93;&lt;/span&gt; ? shrink_inactive_list+0x4f2/0x740&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81123af1&amp;gt;&amp;#93;&lt;/span&gt; __alloc_pages_nodemask+0x111/0x940&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044e87e&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_mem_cache_free+0xe/0x10 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044e87e&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_mem_cache_free+0xe/0x10 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c292&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_free+0x122/0x4c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115e152&amp;gt;&amp;#93;&lt;/span&gt; kmem_getpages+0x62/0x170&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115e7bf&amp;gt;&amp;#93;&lt;/span&gt; cache_grow+0x2cf/0x320&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115eada&amp;gt;&amp;#93;&lt;/span&gt; ____cache_alloc_node+0x8a/0x160&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044ea13&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_alloc+0x63/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115f719&amp;gt;&amp;#93;&lt;/span&gt; __kmalloc+0x189/0x220&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044ea13&amp;gt;&amp;#93;&lt;/span&gt; cfs_alloc+0x63/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0636b4a&amp;gt;&amp;#93;&lt;/span&gt; ptlrpc_prep_bulk_imp+0x7a/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;ptlrpc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa064313c&amp;gt;&amp;#93;&lt;/span&gt; ? lustre_msg_set_timeout+0x9c/0x110 &lt;span class=&quot;error&quot;&gt;&amp;#91;ptlrpc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07ee3df&amp;gt;&amp;#93;&lt;/span&gt; osc_brw_prep_request+0x7cf/0x1030 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08039eb&amp;gt;&amp;#93;&lt;/span&gt; ? osc_req_attr_set+0xfb/0x2a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08f88c8&amp;gt;&amp;#93;&lt;/span&gt; ? ccc_req_attr_set+0x78/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0564bfc&amp;gt;&amp;#93;&lt;/span&gt; ? cl_req_prep+0x8c/0x190 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07efdd5&amp;gt;&amp;#93;&lt;/span&gt; osc_send_oap_rpc+0x1195/0x1c20 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0840e97&amp;gt;&amp;#93;&lt;/span&gt; ? lov_merge_lvb_kms+0x127/0x2b0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lov&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07e1ff1&amp;gt;&amp;#93;&lt;/span&gt; ? osc_consume_write_grant+0x81/0x160 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07f0b3e&amp;gt;&amp;#93;&lt;/span&gt; osc_check_rpcs+0x2de/0x470 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07b2317&amp;gt;&amp;#93;&lt;/span&gt; ? osc_quota_chkdq+0x47/0x3a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lquota&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0557a58&amp;gt;&amp;#93;&lt;/span&gt; ? cl_object_attr_get+0x88/0x1b0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07e7143&amp;gt;&amp;#93;&lt;/span&gt; ? on_list+0x43/0x50 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07f16e3&amp;gt;&amp;#93;&lt;/span&gt; osc_queue_async_io+0x3c3/0x8f0 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0555d59&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_hops_keycmp+0x19/0x70 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07ff63f&amp;gt;&amp;#93;&lt;/span&gt; osc_page_cache_add+0xcf/0x200 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558e68&amp;gt;&amp;#93;&lt;/span&gt; cl_page_invoke+0xb8/0x160 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0559e78&amp;gt;&amp;#93;&lt;/span&gt; cl_page_cache_add+0x58/0x240 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08eebd3&amp;gt;&amp;#93;&lt;/span&gt; ? ll_set_page_dirty+0x13/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ba8f6&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_write_pending+0x56/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ffce3&amp;gt;&amp;#93;&lt;/span&gt; vvp_io_commit_write+0x343/0x5a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045e3f2&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_lookup+0x82/0xa0 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0567d6f&amp;gt;&amp;#93;&lt;/span&gt; cl_io_commit_write+0xaf/0x1e0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558119&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x29/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08d70bd&amp;gt;&amp;#93;&lt;/span&gt; ll_commit_write+0xed/0x300 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff812760cd&amp;gt;&amp;#93;&lt;/span&gt; ? copy_user_generic_string+0x2d/0x40&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ee990&amp;gt;&amp;#93;&lt;/span&gt; ll_write_end+0x30/0x60 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811116c4&amp;gt;&amp;#93;&lt;/span&gt; generic_file_buffered_write+0x174/0x2a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810708c7&amp;gt;&amp;#93;&lt;/span&gt; ? current_fs_time+0x27/0x30&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81112fb0&amp;gt;&amp;#93;&lt;/span&gt; __generic_file_aio_write+0x250/0x480&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8111324f&amp;gt;&amp;#93;&lt;/span&gt; generic_file_aio_write+0x6f/0xe0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa09005f1&amp;gt;&amp;#93;&lt;/span&gt; vvp_io_write_start+0xa1/0x270 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0564548&amp;gt;&amp;#93;&lt;/span&gt; cl_io_start+0x68/0x170 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa05690c0&amp;gt;&amp;#93;&lt;/span&gt; cl_io_loop+0x110/0x1c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045e3f2&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_lookup+0x82/0xa0 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08a799b&amp;gt;&amp;#93;&lt;/span&gt; ll_file_io_generic+0x44b/0x580 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045c4e4&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_dual_bd_unlock+0x34/0x60 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558119&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x29/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08a7c0f&amp;gt;&amp;#93;&lt;/span&gt; ll_file_aio_write+0x13f/0x310 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055828e&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x19e/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ae2d1&amp;gt;&amp;#93;&lt;/span&gt; ll_file_write+0x171/0x310 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81176a38&amp;gt;&amp;#93;&lt;/span&gt; vfs_write+0xb8/0x1a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81177441&amp;gt;&amp;#93;&lt;/span&gt; sys_write+0x51/0x90&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100b0f2&amp;gt;&amp;#93;&lt;/span&gt; system_call_fastpath+0x16/0x1b&lt;br/&gt;
Code: 00 8b 15 4c 35 a4 00 85 d2 74 34 48 8b 50 08 8b 5a 18 48 8b 90 10 09 00 00 48 8b 4a 50 48 85 c9 74 1d 48 63 db 66 90 48 8b 51 20 &amp;lt;48&amp;gt; 03 14 dd e0 6d bf 81 4c 01 2a 48 8b 49 78 48 85 c9 75 e8 48&lt;br/&gt;
RIP  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052994&amp;gt;&amp;#93;&lt;/span&gt; update_curr+0x144/0x1f0&lt;br/&gt;
 RSP &amp;lt;ffff88089c4c3db8&amp;gt;&lt;br/&gt;
CR2: fffffffb81d4d0e0&lt;br/&gt;
--&lt;del&gt;[ end trace 4e12596e8ccf7080 ]&lt;/del&gt;--&lt;br/&gt;
Kernel panic - not syncing: Fatal exception in interrupt&lt;br/&gt;
Pid: 62164, comm: calculate_propa Tainted: G      D W  ----------------   2.6.32-220.23.1.el6.x86_64 #1&lt;br/&gt;
Call Trace:&lt;br/&gt;
 &amp;lt;IRQ&amp;gt;  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814ecb34&amp;gt;&amp;#93;&lt;/span&gt; ? panic+0x78/0x143&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814f0ce2&amp;gt;&amp;#93;&lt;/span&gt; ? oops_end+0xf2/0x100&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810423fb&amp;gt;&amp;#93;&lt;/span&gt; ? no_context+0xfb/0x260&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8147cfee&amp;gt;&amp;#93;&lt;/span&gt; ? tcp_transmit_skb+0x3fe/0x7b0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81042685&amp;gt;&amp;#93;&lt;/span&gt; ? __bad_area_nosemaphore+0x125/0x1e0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81053455&amp;gt;&amp;#93;&lt;/span&gt; ? select_idle_sibling+0x95/0x150&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81042753&amp;gt;&amp;#93;&lt;/span&gt; ? bad_area_nosemaphore+0x13/0x20&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81042e0d&amp;gt;&amp;#93;&lt;/span&gt; ? __do_page_fault+0x31d/0x480&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8104d734&amp;gt;&amp;#93;&lt;/span&gt; ? scale_rt_power+0x24/0x80&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8104d83e&amp;gt;&amp;#93;&lt;/span&gt; ? update_group_power+0xae/0x110&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8126ab69&amp;gt;&amp;#93;&lt;/span&gt; ? cpumask_next_and+0x29/0x50&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810551d4&amp;gt;&amp;#93;&lt;/span&gt; ? find_busiest_group+0x244/0x9f0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814f2c8e&amp;gt;&amp;#93;&lt;/span&gt; ? do_page_fault+0x3e/0xa0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814f0045&amp;gt;&amp;#93;&lt;/span&gt; ? page_fault+0x25/0x30&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052994&amp;gt;&amp;#93;&lt;/span&gt; ? update_curr+0x144/0x1f0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052958&amp;gt;&amp;#93;&lt;/span&gt; ? update_curr+0x108/0x1f0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81013743&amp;gt;&amp;#93;&lt;/span&gt; ? native_sched_clock+0x13/0x80&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81052f4b&amp;gt;&amp;#93;&lt;/span&gt; ? task_tick_fair+0xdb/0x160&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81056791&amp;gt;&amp;#93;&lt;/span&gt; ? scheduler_tick+0xc1/0x260&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810a0dc0&amp;gt;&amp;#93;&lt;/span&gt; ? tick_sched_timer+0x0/0xc0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8107c482&amp;gt;&amp;#93;&lt;/span&gt; ? update_process_times+0x52/0x70&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810a0e26&amp;gt;&amp;#93;&lt;/span&gt; ? tick_sched_timer+0x66/0xc0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810954ae&amp;gt;&amp;#93;&lt;/span&gt; ? __run_hrtimer+0x8e/0x1a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81012b59&amp;gt;&amp;#93;&lt;/span&gt; ? read_tsc+0x9/0x20&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81095856&amp;gt;&amp;#93;&lt;/span&gt; ? hrtimer_interrupt+0xe6/0x250&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff814f55fb&amp;gt;&amp;#93;&lt;/span&gt; ? smp_apic_timer_interrupt+0x6b/0x9b&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100bc13&amp;gt;&amp;#93;&lt;/span&gt; ? apic_timer_interrupt+0x13/0x20&lt;br/&gt;
 &amp;lt;EOI&amp;gt;  &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa009c0e6&amp;gt;&amp;#93;&lt;/span&gt; ? lprocfs_counter_sub+0x86/0x100 &lt;span class=&quot;error&quot;&gt;&amp;#91;lvfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c258&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_free+0xe8/0x4c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08fe8dd&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_page_delete+0x6d/0x100 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c89a&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_put+0x26a/0x440 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055b08d&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_delete+0x3d/0xf0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0567bde&amp;gt;&amp;#93;&lt;/span&gt; ? cl_io_is_going+0xe/0x20 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ee8e7&amp;gt;&amp;#93;&lt;/span&gt; ? ll_releasepage+0xd7/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811100b0&amp;gt;&amp;#93;&lt;/span&gt; ? try_to_release_page+0x30/0x60&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112a4f1&amp;gt;&amp;#93;&lt;/span&gt; ? shrink_page_list.clone.0+0x4f1/0x5c0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112a8bb&amp;gt;&amp;#93;&lt;/span&gt; ? shrink_inactive_list+0x2fb/0x740&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112b5cf&amp;gt;&amp;#93;&lt;/span&gt; ? shrink_zone+0x38f/0x520&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112c374&amp;gt;&amp;#93;&lt;/span&gt; ? zone_reclaim+0x354/0x410&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112cfc0&amp;gt;&amp;#93;&lt;/span&gt; ? isolate_pages_global+0x0/0x350&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81122874&amp;gt;&amp;#93;&lt;/span&gt; ? get_page_from_freelist+0x694/0x820&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8112aab2&amp;gt;&amp;#93;&lt;/span&gt; ? shrink_inactive_list+0x4f2/0x740&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81123af1&amp;gt;&amp;#93;&lt;/span&gt; ? __alloc_pages_nodemask+0x111/0x940&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044e87e&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_mem_cache_free+0xe/0x10 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044e87e&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_mem_cache_free+0xe/0x10 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055c292&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_free+0x122/0x4c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115e152&amp;gt;&amp;#93;&lt;/span&gt; ? kmem_getpages+0x62/0x170&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115e7bf&amp;gt;&amp;#93;&lt;/span&gt; ? cache_grow+0x2cf/0x320&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115eada&amp;gt;&amp;#93;&lt;/span&gt; ? ____cache_alloc_node+0x8a/0x160&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044ea13&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_alloc+0x63/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8115f719&amp;gt;&amp;#93;&lt;/span&gt; ? __kmalloc+0x189/0x220&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa044ea13&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_alloc+0x63/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0636b4a&amp;gt;&amp;#93;&lt;/span&gt; ? ptlrpc_prep_bulk_imp+0x7a/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;ptlrpc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa064313c&amp;gt;&amp;#93;&lt;/span&gt; ? lustre_msg_set_timeout+0x9c/0x110 &lt;span class=&quot;error&quot;&gt;&amp;#91;ptlrpc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07ee3df&amp;gt;&amp;#93;&lt;/span&gt; ? osc_brw_prep_request+0x7cf/0x1030 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08039eb&amp;gt;&amp;#93;&lt;/span&gt; ? osc_req_attr_set+0xfb/0x2a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08f88c8&amp;gt;&amp;#93;&lt;/span&gt; ? ccc_req_attr_set+0x78/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0564bfc&amp;gt;&amp;#93;&lt;/span&gt; ? cl_req_prep+0x8c/0x190 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07efdd5&amp;gt;&amp;#93;&lt;/span&gt; ? osc_send_oap_rpc+0x1195/0x1c20 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0840e97&amp;gt;&amp;#93;&lt;/span&gt; ? lov_merge_lvb_kms+0x127/0x2b0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lov&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07e1ff1&amp;gt;&amp;#93;&lt;/span&gt; ? osc_consume_write_grant+0x81/0x160 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07f0b3e&amp;gt;&amp;#93;&lt;/span&gt; ? osc_check_rpcs+0x2de/0x470 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07b2317&amp;gt;&amp;#93;&lt;/span&gt; ? osc_quota_chkdq+0x47/0x3a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lquota&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0557a58&amp;gt;&amp;#93;&lt;/span&gt; ? cl_object_attr_get+0x88/0x1b0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07e7143&amp;gt;&amp;#93;&lt;/span&gt; ? on_list+0x43/0x50 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07f16e3&amp;gt;&amp;#93;&lt;/span&gt; ? osc_queue_async_io+0x3c3/0x8f0 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0555d59&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_hops_keycmp+0x19/0x70 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa07ff63f&amp;gt;&amp;#93;&lt;/span&gt; ? osc_page_cache_add+0xcf/0x200 &lt;span class=&quot;error&quot;&gt;&amp;#91;osc&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558e68&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_invoke+0xb8/0x160 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0559e78&amp;gt;&amp;#93;&lt;/span&gt; ? cl_page_cache_add+0x58/0x240 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08eebd3&amp;gt;&amp;#93;&lt;/span&gt; ? ll_set_page_dirty+0x13/0x90 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ba8f6&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_write_pending+0x56/0x150 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ffce3&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_io_commit_write+0x343/0x5a0 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045e3f2&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_lookup+0x82/0xa0 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0567d6f&amp;gt;&amp;#93;&lt;/span&gt; ? cl_io_commit_write+0xaf/0x1e0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558119&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x29/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08d70bd&amp;gt;&amp;#93;&lt;/span&gt; ? ll_commit_write+0xed/0x300 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff812760cd&amp;gt;&amp;#93;&lt;/span&gt; ? copy_user_generic_string+0x2d/0x40&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ee990&amp;gt;&amp;#93;&lt;/span&gt; ? ll_write_end+0x30/0x60 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff811116c4&amp;gt;&amp;#93;&lt;/span&gt; ? generic_file_buffered_write+0x174/0x2a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff810708c7&amp;gt;&amp;#93;&lt;/span&gt; ? current_fs_time+0x27/0x30&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81112fb0&amp;gt;&amp;#93;&lt;/span&gt; ? __generic_file_aio_write+0x250/0x480&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8111324f&amp;gt;&amp;#93;&lt;/span&gt; ? generic_file_aio_write+0x6f/0xe0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa09005f1&amp;gt;&amp;#93;&lt;/span&gt; ? vvp_io_write_start+0xa1/0x270 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0564548&amp;gt;&amp;#93;&lt;/span&gt; ? cl_io_start+0x68/0x170 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa05690c0&amp;gt;&amp;#93;&lt;/span&gt; ? cl_io_loop+0x110/0x1c0 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045e3f2&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_lookup+0x82/0xa0 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08a799b&amp;gt;&amp;#93;&lt;/span&gt; ? ll_file_io_generic+0x44b/0x580 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa045c4e4&amp;gt;&amp;#93;&lt;/span&gt; ? cfs_hash_dual_bd_unlock+0x34/0x60 &lt;span class=&quot;error&quot;&gt;&amp;#91;libcfs&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa0558119&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x29/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08a7c0f&amp;gt;&amp;#93;&lt;/span&gt; ? ll_file_aio_write+0x13f/0x310 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa055828e&amp;gt;&amp;#93;&lt;/span&gt; ? cl_env_get+0x19e/0x350 &lt;span class=&quot;error&quot;&gt;&amp;#91;obdclass&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffffa08ae2d1&amp;gt;&amp;#93;&lt;/span&gt; ? ll_file_write+0x171/0x310 &lt;span class=&quot;error&quot;&gt;&amp;#91;lustre&amp;#93;&lt;/span&gt;&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81176a38&amp;gt;&amp;#93;&lt;/span&gt; ? vfs_write+0xb8/0x1a0&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff81177441&amp;gt;&amp;#93;&lt;/span&gt; ? sys_write+0x51/0x90&lt;br/&gt;
 &lt;span class=&quot;error&quot;&gt;&amp;#91;&amp;lt;ffffffff8100b0f2&amp;gt;&amp;#93;&lt;/span&gt; ? system_call_fastpath+0x16/0x1b&lt;br/&gt;
&lt;span class=&quot;error&quot;&gt;&amp;#91;-- MARK -- Thu Jul 26 00:00:00 2012&amp;#93;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="43081" author="yujian" created="Mon, 13 Aug 2012 03:48:18 +0000"  >&lt;p&gt;Lustre Tag: v2_1_3_RC1&lt;br/&gt;
Lustre Build: &lt;a href=&quot;http://build.whamcloud.com/job/lustre-b2_1/113/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://build.whamcloud.com/job/lustre-b2_1/113/&lt;/a&gt;&lt;br/&gt;
Distro/Arch: RHEL6.3/x86_64 + RHEL6.3/i686 (Server + Client)&lt;br/&gt;
Network: TCP (1GigE)&lt;/p&gt;

&lt;p&gt;parallel-scale-nfsv3 test iorssf failed as follows:&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;IOR-2.10.3: MPI Coordinated Test of Parallel I/O

Run began: Fri Aug 10 20:35:34 2012
Command line used: /usr/bin/IOR -a POSIX -b 5g -o /mnt/lustre/d0.ior.ssf/iorData -t 2m -v -w -r -i 1 -T 30 -k
Machine: Linux client-10vm1.lab.whamcloud.com
Start time skew across all tasks: 0.00 sec
Path: /mnt/lustre/d0.ior.ssf
FS: 47.6 GiB   Used FS: 4.5%   Inodes: 3.0 Mi   Used Inodes: 0.0%
Participating tasks: 4

Summary:
	api                = POSIX
	test filename      = /mnt/lustre/d0.ior.ssf/iorData
	access             = single-shared-file
	pattern            = segmented (1 segment)
	ordering in a file = sequential offsets
	ordering inter file= no tasks offsets
	clients            = 4 (2 per node)
	repetitions        = 1
	xfersize           = 2 MiB
	blocksize          = 5 GiB
	aggregate filesize = 20 GiB

Commencing write performance test.
Fri Aug 10 20:35:34 2012

[client-10vm1.lab.whamcloud.com:08636] 3 more processes have sent help message help-mpi-btl-base.txt / btl:no-nics
[client-10vm1.lab.whamcloud.com:08636] Set MCA parameter &quot;orte_base_help_aggregate&quot; to 0 to see all help / error messages
** error **
ERROR in aiori-POSIX.c (line 256): transfer failed.
ERROR: Input/output error
** exiting **
** error **
ERROR in aiori-POSIX.c (line 256): transfer failed.
ERROR: Input/output error
** exiting **
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;&lt;a href=&quot;https://maloo.whamcloud.com/test_sets/bd8f71d6-e38a-11e1-93f8-52540035b04c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://maloo.whamcloud.com/test_sets/bd8f71d6-e38a-11e1-93f8-52540035b04c&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Console log on MDS/Lustre Client/NFS Server showed that:&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;20:50:08:Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) nfs fscache jbd2 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 [last unloaded: lnet_selftest]
20:50:08:Pid: 13603, comm: nfsd Tainted: G        W  ---------------    2.6.32-279.2.1.el6_lustre.x86_64 #1
20:50:08:Call Trace:
20:50:08: [&amp;lt;ffffffff81057df6&amp;gt;] ? __schedule_bug+0x66/0x70
20:50:08:BUG: unable to handle kernel NULL pointer dereference at 0000000000000a08
20:50:08:IP: [&amp;lt;ffffffff8100f5ad&amp;gt;] print_context_stack+0xad/0x140
20:50:08:PGD 0 
20:50:08:Thread overran stack, or stack corrupted
20:50:08:Oops: 0000 [#1] SMP 
20:50:08:last sysfs file: /sys/module/nfsd/initstate
20:50:08:CPU 0 
20:50:09:Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) nfs fscache jbd2 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 [last unloaded: lnet_selftest]
20:50:09:
20:50:09:Pid: 13603, comm: nfsd Tainted: G        W  ---------------    2.6.32-279.2.1.el6_lustre.x86_64 #1 Red Hat KVM
20:50:09:RIP: 0010:[&amp;lt;ffffffff8100f5ad&amp;gt;]  [&amp;lt;ffffffff8100f5ad&amp;gt;] print_context_stack+0xad/0x140
20:50:09:RSP: 0018:ffff8800547da2e0  EFLAGS: 00010206
20:50:09:RAX: 0000000000000020 RBX: ffff8800547da468 RCX: 0000000000000000
20:50:09:RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246
20:50:09:RBP: ffff8800547da340 R08: ffffffff81c019c0 R09: 0000000000000000
20:50:09:R10: 0000000000000001 R11: 0000000000000007 R12: ffff8800547da3e0
20:50:10:R13: ffff8800547da000 R14: ffffffff81600460 R15: 0000000000000000
20:50:10:FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
20:50:10:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
20:50:10:CR2: 0000000000000a08 CR3: 000000007d071000 CR4: 00000000000006f0
20:50:10:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
20:50:10:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
20:50:10:Process nfsd (pid: 13603, threadinfo ffff8800547da000, task ffff880037d98ae0)
20:50:10:Stack:
20:50:10: ffff8800547da2f0 ffff8800547dbff8 ffff8800547da3e0 ffffffffffffe000
20:50:10:&amp;lt;d&amp;gt; ffffffff817b7290 ffffffff81057df6 0000000000000010 ffff8800547da448
20:50:10:&amp;lt;d&amp;gt; 000000000000cbe0 ffffffff81600460 ffffffff817b7290 ffff880002203fc0
20:50:10:Call Trace:
20:50:10: [&amp;lt;ffffffff81057df6&amp;gt;] ? __schedule_bug+0x66/0x70
20:50:10: [&amp;lt;ffffffff8100e520&amp;gt;] dump_trace+0x190/0x3b0
20:50:10: [&amp;lt;ffffffff8100f315&amp;gt;] show_trace_log_lvl+0x55/0x70
20:50:10: [&amp;lt;ffffffff8100f345&amp;gt;] show_trace+0x15/0x20
20:50:10: [&amp;lt;ffffffff814fd4d3&amp;gt;] dump_stack+0x6f/0x76
20:50:10: [&amp;lt;ffffffff810ac68a&amp;gt;] ? print_modules+0x5a/0xf0
20:50:10: [&amp;lt;ffffffff81057df6&amp;gt;] __schedule_bug+0x66/0x70
20:50:11: [&amp;lt;ffffffff814fe288&amp;gt;] thread_return+0x646/0x76e
20:50:11: [&amp;lt;ffffffffa089ee4b&amp;gt;] ? cfs_hash_add_unique+0x1b/0x40 [libcfs]
20:50:11: [&amp;lt;ffffffff810623da&amp;gt;] __cond_resched+0x2a/0x40
20:50:11: [&amp;lt;ffffffff814fe650&amp;gt;] _cond_resched+0x30/0x40
20:50:11: [&amp;lt;ffffffff8112d69f&amp;gt;] shrink_page_list.clone.0+0xdf/0x660
20:50:11: [&amp;lt;ffffffff8112df3c&amp;gt;] shrink_inactive_list+0x31c/0x7d0
20:50:11: [&amp;lt;ffffffffa089c0b7&amp;gt;] ? cfs_hash_bd_lookup_intent+0x37/0x120 [libcfs]
20:50:11: [&amp;lt;ffffffffa089b4f4&amp;gt;] ? cfs_hash_dual_bd_unlock+0x34/0x60 [libcfs]
20:50:11: [&amp;lt;ffffffffa089ed0d&amp;gt;] ? cfs_hash_find_or_add+0x9d/0x190 [libcfs]
20:50:11: [&amp;lt;ffffffff8112ecbf&amp;gt;] shrink_zone+0x38f/0x520
20:50:11: [&amp;lt;ffffffff8109cd49&amp;gt;] ? ktime_get_ts+0xa9/0xe0
20:50:11: [&amp;lt;ffffffff8112ef4e&amp;gt;] do_try_to_free_pages+0xfe/0x520
20:50:11: [&amp;lt;ffffffff8111835f&amp;gt;] ? zone_watermark_ok+0x1f/0x30
20:50:11: [&amp;lt;ffffffff8112f55d&amp;gt;] try_to_free_pages+0x9d/0x130
20:50:11: [&amp;lt;ffffffff81135f26&amp;gt;] ? next_online_pgdat+0x26/0x50
20:50:11: [&amp;lt;ffffffff811306b0&amp;gt;] ? isolate_pages_global+0x0/0x350
20:50:11: [&amp;lt;ffffffff8112735d&amp;gt;] __alloc_pages_nodemask+0x40d/0x940
20:50:11: [&amp;lt;ffffffff81161e92&amp;gt;] kmem_getpages+0x62/0x170
20:50:11: [&amp;lt;ffffffff81162aaa&amp;gt;] fallback_alloc+0x1ba/0x270
20:50:12: [&amp;lt;ffffffff811624ff&amp;gt;] ? cache_grow+0x2cf/0x320
20:50:12: [&amp;lt;ffffffff81162829&amp;gt;] ____cache_alloc_node+0x99/0x160
20:50:12: [&amp;lt;ffffffffa088da13&amp;gt;] ? cfs_alloc+0x63/0x90 [libcfs]
20:50:12: [&amp;lt;ffffffff81163459&amp;gt;] __kmalloc+0x189/0x220
20:50:12: [&amp;lt;ffffffffa088da13&amp;gt;] cfs_alloc+0x63/0x90 [libcfs]
20:50:12: [&amp;lt;ffffffffa03fad7a&amp;gt;] ptlrpc_prep_bulk_imp+0x7a/0x350 [ptlrpc]
20:50:12: [&amp;lt;ffffffffa040736c&amp;gt;] ? lustre_msg_set_timeout+0x9c/0x110 [ptlrpc]
20:50:12: [&amp;lt;ffffffffa05483df&amp;gt;] osc_brw_prep_request+0x7cf/0x1030 [osc]
20:50:12: [&amp;lt;ffffffffa055d88b&amp;gt;] ? osc_req_attr_set+0xfb/0x2a0 [osc]
20:50:12: [&amp;lt;ffffffffa08388c8&amp;gt;] ? ccc_req_attr_set+0x78/0x150 [lustre]
20:50:12: [&amp;lt;ffffffffa0b8b6cc&amp;gt;] ? cl_req_prep+0x8c/0x190 [obdclass]
20:50:12: [&amp;lt;ffffffffa0549dd5&amp;gt;] osc_send_oap_rpc+0x1195/0x1c20 [osc]
20:50:12: [&amp;lt;ffffffff814fdc90&amp;gt;] ? thread_return+0x4e/0x76e
20:50:12: [&amp;lt;ffffffffa054ab3e&amp;gt;] osc_check_rpcs+0x2de/0x470 [osc]
20:50:12: [&amp;lt;ffffffffa0b7e4f8&amp;gt;] ? cl_object_attr_get+0x88/0x1b0 [obdclass]
20:50:12: [&amp;lt;ffffffff81060250&amp;gt;] ? default_wake_function+0x0/0x20
20:50:12: [&amp;lt;ffffffffa054b6e3&amp;gt;] osc_queue_async_io+0x3c3/0x8f0 [osc]
20:50:13: [&amp;lt;ffffffff81039632&amp;gt;] ? pvclock_clocksource_read+0x12/0xd0
20:50:13: [&amp;lt;ffffffff8109caaa&amp;gt;] ? do_gettimeofday+0x1a/0x50
20:50:13: [&amp;lt;ffffffffa055963f&amp;gt;] osc_page_cache_add+0xcf/0x200 [osc]
20:50:13: [&amp;lt;ffffffffa08976a1&amp;gt;] ? libcfs_debug_vmsg2+0x4d1/0xb50 [libcfs]
20:50:13: [&amp;lt;ffffffffa0b7f908&amp;gt;] cl_page_invoke+0xb8/0x160 [obdclass]
20:50:13: [&amp;lt;ffffffffa05b0afe&amp;gt;] ? lov_page_stripe+0x3e/0x150 [lov]
20:50:13: [&amp;lt;ffffffffa0b80918&amp;gt;] cl_page_cache_add+0x58/0x240 [obdclass]
20:50:13: [&amp;lt;ffffffffa089c15d&amp;gt;] ? cfs_hash_bd_lookup_intent+0xdd/0x120 [libcfs]
20:50:13: [&amp;lt;ffffffffa083fcc5&amp;gt;] vvp_io_commit_write+0x325/0x580 [lustre]
20:50:13: [&amp;lt;ffffffffa089d402&amp;gt;] ? cfs_hash_lookup+0x82/0xa0 [libcfs]
20:50:13: [&amp;lt;ffffffffa0b8e83f&amp;gt;] cl_io_commit_write+0xaf/0x1e0 [obdclass]
20:50:13: [&amp;lt;ffffffffa0b7ebb9&amp;gt;] ? cl_env_get+0x29/0x350 [obdclass]
20:50:13: [&amp;lt;ffffffffa08170ad&amp;gt;] ll_commit_write+0xed/0x300 [lustre]
20:50:13: [&amp;lt;ffffffffa082e990&amp;gt;] ll_write_end+0x30/0x60 [lustre]
20:50:13: [&amp;lt;ffffffff81114c4a&amp;gt;] generic_file_buffered_write+0x18a/0x2e0
20:50:13: [&amp;lt;ffffffff810724c7&amp;gt;] ? current_fs_time+0x27/0x30
20:50:13: [&amp;lt;ffffffff81116580&amp;gt;] __generic_file_aio_write+0x250/0x480
20:50:13: [&amp;lt;ffffffff8111681f&amp;gt;] generic_file_aio_write+0x6f/0xe0
20:50:14: [&amp;lt;ffffffffa08405d1&amp;gt;] vvp_io_write_start+0xa1/0x270 [lustre]
20:50:14: [&amp;lt;ffffffffa0b8b018&amp;gt;] cl_io_start+0x68/0x170 [obdclass]
20:50:14: [&amp;lt;ffffffffa0b8fb90&amp;gt;] cl_io_loop+0x110/0x1c0 [obdclass]
20:50:14: [&amp;lt;ffffffffa07e798b&amp;gt;] ll_file_io_generic+0x44b/0x580 [lustre]
20:50:14: [&amp;lt;ffffffffa089ee4b&amp;gt;] ? cfs_hash_add_unique+0x1b/0x40 [libcfs]
20:50:14: [&amp;lt;ffffffffa0b7ed2e&amp;gt;] ? cl_env_get+0x19e/0x350 [obdclass]
20:50:14: [&amp;lt;ffffffffa07e7bff&amp;gt;] ll_file_aio_write+0x13f/0x310 [lustre]
20:50:14: [&amp;lt;ffffffffa050ccc0&amp;gt;] ? lmv_clear_open_replay_data+0x120/0x520 [lmv]
20:50:14: [&amp;lt;ffffffffa07e7ac0&amp;gt;] ? ll_file_aio_write+0x0/0x310 [lustre]
20:50:14: [&amp;lt;ffffffff8117ad5b&amp;gt;] do_sync_readv_writev+0xfb/0x140
20:50:14: [&amp;lt;ffffffffa0813991&amp;gt;] ? ll_readahead_init+0x21/0x40 [lustre]
20:50:14: [&amp;lt;ffffffff810920d0&amp;gt;] ? autoremove_wake_function+0x0/0x40
20:50:14: [&amp;lt;ffffffffa03f6b10&amp;gt;] ? ptlrpc_req_finished+0x10/0x20 [ptlrpc]
20:50:14: [&amp;lt;ffffffff81213286&amp;gt;] ? security_file_permission+0x16/0x20
20:50:14: [&amp;lt;ffffffff8117be06&amp;gt;] do_readv_writev+0xd6/0x1f0
20:50:14: [&amp;lt;ffffffff8117bf66&amp;gt;] vfs_writev+0x46/0x60
20:50:14: [&amp;lt;ffffffffa034d3f5&amp;gt;] nfsd_vfs_write+0x105/0x430 [nfsd]
20:50:15: [&amp;lt;ffffffff81178c62&amp;gt;] ? dentry_open+0x52/0xc0
20:50:15: [&amp;lt;ffffffffa034fb0b&amp;gt;] ? nfsd_open+0x1db/0x230 [nfsd]
20:50:15: [&amp;lt;ffffffffa034ff27&amp;gt;] nfsd_write+0xe7/0x100 [nfsd]
20:50:15: [&amp;lt;ffffffffa035783f&amp;gt;] nfsd3_proc_write+0xaf/0x140 [nfsd]
20:50:15: [&amp;lt;ffffffffa034843e&amp;gt;] nfsd_dispatch+0xfe/0x240 [nfsd]
20:50:15: [&amp;lt;ffffffffa02b25d4&amp;gt;] svc_process_common+0x344/0x640 [sunrpc]
20:50:15: [&amp;lt;ffffffff81060250&amp;gt;] ? default_wake_function+0x0/0x20
20:50:15: [&amp;lt;ffffffffa02b2c10&amp;gt;] svc_process+0x110/0x160 [sunrpc]
20:50:15: [&amp;lt;ffffffffa0348b62&amp;gt;] nfsd+0xc2/0x160 [nfsd]
20:50:15: [&amp;lt;ffffffffa0348aa0&amp;gt;] ? nfsd+0x0/0x160 [nfsd]
20:50:15: [&amp;lt;ffffffff81091d66&amp;gt;] kthread+0x96/0xa0
20:50:15: [&amp;lt;ffffffff8100c14a&amp;gt;] child_rip+0xa/0x20
20:50:15: [&amp;lt;ffffffff81091cd0&amp;gt;] ? kthread+0x0/0xa0
20:50:15: [&amp;lt;ffffffff8100c140&amp;gt;] ? child_rip+0x0/0x20
20:50:15:Code: f4 07 00 85 c0 74 2c 49 8d 44 24 08 48 39 c3 74 7d 31 d2 48 8b 75 c8 48 8b 7d c0 41 ff 56 10 48 81 7d c8 c1 ae 00 81 49 8b 45 00 &amp;lt;8b&amp;gt; 90 e8 09 00 00 74 1b 48 83 c3 08 4d 85 ff 75 92 4c 39 eb 76 
20:50:15:RIP  [&amp;lt;ffffffff8100f5ad&amp;gt;] print_context_stack+0xad/0x140
20:50:15: RSP &amp;lt;ffff8800547da2e0&amp;gt;
20:50:15:CR2: 0000000000000a08
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</comment>
                            <comment id="43084" author="yujian" created="Mon, 13 Aug 2012 03:57:53 +0000"  >&lt;p&gt;RHEL6.3/x86_64 (2.1.3 RC1 Server + 1.8.8-wc1 Client):&lt;br/&gt;
&lt;a href=&quot;https://maloo.whamcloud.com/test_sets/2211112e-e42a-11e1-b6d3-52540035b04c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://maloo.whamcloud.com/test_sets/2211112e-e42a-11e1-b6d3-52540035b04c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="43090" author="yujian" created="Mon, 13 Aug 2012 04:27:32 +0000"  >&lt;p&gt;RHEL6.3/x86_64 (2.1.3 Servers + 2.1.2 Clients):&lt;br/&gt;
&lt;a href=&quot;https://maloo.whamcloud.com/test_sets/7f3dc2ee-e3ed-11e1-b6d3-52540035b04c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://maloo.whamcloud.com/test_sets/7f3dc2ee-e3ed-11e1-b6d3-52540035b04c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="43125" author="pjones" created="Mon, 13 Aug 2012 13:29:12 +0000"  >&lt;p&gt;Oleg believes this to be a duplicate of &lt;a href=&quot;https://jira.whamcloud.com/browse/LU-969&quot; title=&quot;2.1 client stack overruns&quot; class=&quot;issue-link&quot; data-issue-key=&quot;LU-969&quot;&gt;&lt;del&gt;LU-969&lt;/del&gt;&lt;/a&gt;. Please reopen if this problem reoccurs with that fix in place.&lt;/p&gt;</comment>
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