[dm-devel] 2.6.35 causes deadlock when snapshotting root lv

[Phillip Susi]

On 06/17/2010 12:27 PM, Mike Snitzer wrote:
>>> http://git.kernel.org/linus/18e9e5104fcd9a9
>>> http://git.kernel.org/linus/6b0310fbf087ad6
>>
>> Yes, these do look suspicious.  I'll test reverting them tonight.
>
> OK, I'd suggest reverting the VFS change (18e9e5104fcd9a9) first.

Turns out it was 6b0310fbf087ad6 that did it.  CCing Eric Sandeen since 
he wrote it.  Eric, this patch seems to cause a deadlock when taking an 
lvm snapshot of the root lv.  Any idea why?