Re: btrfs deadlock in 3.5-rc3

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On Mon, Jun 25, 2012 at 08:08:31AM -0600, Stefan Priebe - Profihost AG wrote:
> Am 25.06.2012 15:08, schrieb Josef Bacik:>
>  > This isn't showing the guy who's actually trying to commit the
>  > transaction.  Next time this happens can you do a sysrq+w and capture
>  > the output and post it here so we can see what everybody is doing? 
> Thanks,
>  >
>  > Josef
> 
> No problem.
> 
> Kernel trace:
> http://pastebin.com/raw.php?i=puZkCRCn
> 
> # sys rq w trigger:
> # echo w > /proc/sysrq-trigger
> http://pastebin.com/raw.php?i=AQA8xxCX


Thats weird, sysrq+w should have a bunch of stacktraces but it's empty, so
unless theres a bug theres nothing blocked.  Is the box actually hung or is it
just taking forever?  Maybe try sysrq+w again to see if the one you pasted was
just a fluke?  Thanks,

Josef 
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