Re: BUG at fs/inode.c

[Amon Ott <a.ott@m-privacy.de>]

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On Tuesday 25 October 2011 wrote Amon Ott:
> On Monday 24 October 2011 wrote Yehuda Sadeh Weinraub:
> > Also, the client logs could help shedding a light on the issue. You
> > should have dynamic debugging turned on (CONFIG_DYNAMIC_DEBUG), and
> > something along the lines of:
> >
> > # mount -t debugfs none /sys/kernel/debug
> > # echo 'module ceph +p' > /sys/kernel/debug/dynamic_debug/control
> > # echo 'module libceph +p' > /sys/kernel/debug/dynamic_debug/control
>
> New kernels are building right now. Upgraded to 3.0.8, put in new
> ceph-client master fix 8ba1683acc83aee4bcab304844f8e60330e5ef1f and added
> CONFIG_DYNAMIC_DEBUG. This kernel will go into two big servers this time to
> give it some real load. Let's see whether I can reproduce there, too. If
> so, I will provide debug output as requested.

Finally, I could reproduce with debugging on and keep the system alive long 
enough to copy the kernel log. Attached are two examples of the BUG happening 
with surrounding Ceph logs. Before and after these extracts are some seconds 
without logging, so I assume they are complete.

Amon Ott
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