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SubjectRe: 3.0: BUG: soft lockup - CPU#7 stuck for 23s!


On Fri, 12 Aug 2011, Justin Piszcz wrote:

> Hi,
>
> Can anyone explain what is the cause of this problem?
>
> 75 [330509.718763] Call Trace:
> 76 [330509.718771] [<ffffffff81089e15>] ? pagevec_lookup+0x15/0x20
> 77 [330509.718776] [<ffffffff8108b905>] ?
> invalidate_mapping_pages+0x55/0x130
> 78 [330509.718784] [<ffffffff810d6835>] ? shrink_icache_memory+0x2c5/0x310
> 79 [330509.718788] [<ffffffff8108c254>] ? shrink_slab+0x104/0x170
> 80 [330509.718793] [<ffffffff8108eda2>] ? balance_pgdat+0x492/0x600
> 81 [330509.718798] [<ffffffff8108efbc>] ? kswapd+0xac/0x250
> 82 [330509.718803] [<ffffffff81050fd0>] ? abort_exclusive_wait+0xb0/0xb0
> 83 [330509.718807] [<ffffffff8108ef10>] ? balance_pgdat+0x600/0x600
> 84 [330509.718811] [<ffffffff8105082e>] ? kthread+0x7e/0x90
> 85 [330509.718818] [<ffffffff815b4e14>] ? kernel_thread_helper+0x4/0x10
> 86 [330509.718822] [<ffffffff810507b0>] ? kthread_worker_fn+0x120/0x120
> 87 [330509.718825] [<ffffffff815b4e10>] ? gs_change+0xb/0xb
>
> Also:
>
> [330514.882885] Call Trace:
> [330514.882894] [<ffffffff8147de53>] ? cpuidle_idle_call+0x73/0xe0
> [330514.882901] [<ffffffff810007e6>] ? cpu_idle+0x56/0xb0
> [330514.882906] Code: 28 e0 ff ff 83 e2 08 75 22 31 d2 48 83 c0 10 48 89 d1
> 0f 01 c8 0f ae f0 48 8b 86 38 e0 ff ff a8 08 75 08 b1 01 48 89 e8 0f 01 c9
> <e8> cd da d3 ff 4c 29 e0 48 89 c7 e8 92 fa d1 ff 48 69 e8 40 42
> [330514.882972] Call Trace:
> [330514.882979] [<ffffffff8147de53>] ? cpuidle_idle_call+0x73/0xe0
> [330514.882992] [<ffffffff810007e6>] ? cpu_idle+0x56/0xb0
> [330514.883001] NMI backtrace for cpu 19
> [330514.883008] CPU 19
>
> Full output here:
>
> http://home.comcast.net/~jpiszcz/20110812/3.0-error.txt
>
> Justin.
>
>

Could it be from these NFS errros?

[25753.885236] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 14226
[25769.833676] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 30440
[25773.729444] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 30440
[47314.413341] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 178016
[50913.846798] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 6848
[54498.758217] NFS: directory motion/cam1 contains a readdir loop. Please contact your server vendor. Offending cookie: 24101
[112018.790234] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 97155
[112021.938448] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 7200
[112024.318213] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 9076
[112041.079391] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 26631
[112041.451630] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 26631
[112050.037165] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 36654
[112065.776352] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 111376
[112078.973627] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 125587
[112091.763116] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 139456
[112103.410142] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 152678
[112114.910136] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 165151
[112125.737385] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 176737
[126385.403115] NFS: directory motion/cam2 contains a readdir loop. Please contact your server vendor. Offending cookie: 3424
[198276.128284] NFS: directory motion/cam1 contains a readdir loop. Please contact your server vendor. Offending cookie: 3424
[198276.427155] NFS: directory motion/cam5 contains a readdir loop. Please contact your server vendor. Offending cookie: 3424
[198285.877935] NFS: directory motion/cam1 contains a readdir loop. Please contact your server vendor. Offending cookie: 4193
[198301.261320] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 106126
[198322.855898] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 36704
[198340.080163] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 66195
[264331.665375] NFS: directory motion/cam3 contains a readdir loop. Please contact your server vendor. Offending cookie: 23964
[268319.266621] NFS: directory motion/cam2 contains a readdir loop. Please contact your server vendor. Offending cookie: 6848


Justin.



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