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Old 02-10-2012, 12:38 AM
Jonathan Nieder
 
Default Bug#618744: nfsd gets stuck in D state

Hi,

Anton Ivanov wrote:

> nfsd gets stuck in D state. Initially some machines, later all which read off
> the nfs server fail to read. Messages like:
>
> Mar 17 22:03:34 localhost kernel: [1899559.532028] statd: server rpc.statd not responding, timed out
> Mar 17 22:03:34 localhost kernel: [1899559.532055] lockd: cannot monitor greebo

Mph, that's no good.

What kernel do you use now? Any changes? Can you use "alt+sysrq; w"
while in that state to get backtraces for blocked tasks, in case it
helps find a deadlock? (You may need to use "echo 1 >/proc/sys/kernel/sysrq"
before that will work; see Documentation/sysrq.txt for details.)

Hope that helps,
Jonathan



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Old 02-12-2012, 05:54 PM
Anton Ivanov
 
Default Bug#618744: nfsd gets stuck in D state

On 10/02/12 01:38, Jonathan Nieder wrote:

Hi,

Anton Ivanov wrote:



nfsd gets stuck in D state. Initially some machines, later all which read off
the nfs server fail to read. Messages like:

Mar 17 22:03:34 localhost kernel: [1899559.532028] statd: server rpc.statd not responding, timed out
Mar 17 22:03:34 localhost kernel: [1899559.532055] lockd: cannot monitor greebo


Mph, that's no good.

What kernel do you use now? Any changes? Can you use "alt+sysrq; w"
while in that state to get backtraces for blocked tasks, in case it
helps find a deadlock? (You may need to use "echo 1>/proc/sys/kernel/sysrq"
before that will work; see Documentation/sysrq.txt for details.)



I have upgraded most machines to current stable and I have stopped
seeing thi.



Hope that helps,
Jonathan







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