Re: linux 4.1-rc7 deadlock

From: Daniel Wagner
Date: Tue Jun 09 2015 - 10:10:48 EST


Hi Morten,

On 06/09/2015 01:54 PM, Morten Stevens wrote:
> [ 28.193327] Possible unsafe locking scenario:
>
> [ 28.194297] CPU0 CPU1
> [ 28.194774] ---- ----
> [ 28.195254] lock(&mm->mmap_sem);
> [ 28.195709] lock(&xfs_dir_ilock_class);
> [ 28.196174] lock(&mm->mmap_sem);
> [ 28.196654] lock(&isec->lock);
> [ 28.197108]

[...]

> Any ideas?

I think you hit the same problem many have already reported:

https://lkml.org/lkml/2015/3/30/594

cheers,
daniel
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