Hi,
I don't know if this issue is still actual... but I'm suffering the same
thing.
My puppet agent hangs for ~1 Minute with these messages:
> 26297 16:49:19.735059 futex(0x33e6ce7ab0, FUTEX_WAKE_PRIVATE, 1) = 0
> 26297 16:49:19.735127 futex(0x33e6ce7a84,
> FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 7, {1350485359, 745041001},
> ffffffff) = -1 ETIMEDOUT (Connection timed out)
> 26297 16:49:19.745244 futex(0x33e6ce7ab0, FUTEX_WAKE_PRIVATE, 1) = 0
> 26297 16:49:19.745325 futex(0x33e6ce7a84,
> FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 9, {1350485359, 755228509},
> ffffffff) = -1 ETIMEDOUT (Connection timed out)
These lines repeat about 6000 times...
Then the agent continues with:
> 26265 16:50:22.898764 <... select resumed> ) = 1 (in [4], left {56,
> 826791})
> 26265 16:50:22.898853 read(4, "\27\3\1\0\300", 5) = 5
> 26265 16:50:22.898920 read(4,
> "\f\233\301\212\366\332X\277Q\273\n5\351\222\27\262\321#2*\350\260xPL\230\372\377!\366\270\355"...,
>
> 192) = 192
> 26265 16:50:22.899105 select(0, [], [], [], {0, 0}) = 0 (Timeout)
> 26265 16:50:22.899271 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
> 26265 16:50:22.899495 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
Have anybody any idea?
One thing: It's definitely not the leap-second bug, the machine was born
afterwards ;-)
best regards,
Richard
On Monday, July 16, 2012 10:00:54 AM UTC+2, Ernest Beinrohr wrote:
>
> Same here, we have this issue from the beginning (~3m). I am now forced to
> restart the service every hour :(
>
> On Monday, July 16, 2012 9:56:15 AM UTC+2, Thomas Sturm wrote:
>>
>>
>>> Is this a relativly new issue for you? FUTEX_WAIT reminds me of the leap
>>> second kernelbug. If that's the case setting the time will fix the
>>> issue.
>>>
>>>
>>> http://serverfault.com/questions/407224/java-process-opends-consumes-all-cpu-futex-flood-how-to-debug-futex
>>>
>>>
>>> -Stefan
>>>
>>>
>> No, we already noticed this some weeks ago, so I don't think it has to do
>> with the leap second bug. The process also doesn't consume much CPU, it
>> just waits.
>>
>> Thomas
>>
>
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