Re: 3.4.4-rt13: btrfs + xfstests 006 = BOOM.. and a bonus rt_mutexdeadlock report for absolutely free!

From: Thomas Gleixner
Date: Thu Jul 12 2012 - 09:43:46 EST


On Thu, 12 Jul 2012, Mike Galbraith wrote:
> On Thu, 2012-07-12 at 15:31 +0200, Thomas Gleixner wrote:
> > A quick check for memcpy finds that __btrfs_close_devices() does a
> > memcpy of btrfs_device structs w/o initializing the lock in the new
> > copy, but I have no idea whether that's the place we are looking for.
>
>
> Cool, you found one, thanks! I'm setting boobytraps.
>
> Um, correction, box says I'm setting _buggy_ boobytraps :)
>
> Tomorrow-man will test this and frob traps anew.

What kind of test setup do you have? i.e. raid, single disk ...

Thanks,

tglx
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