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Date: Fri, 8 Apr 2016 12:18:55 -0700
From: Mark Fasheh <mfasheh@suse.de>
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Subject: Re: WARN_ON in record_root_in_trans() when deleting freshly renamed
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On Fri, Apr 08, 2016 at 03:10:35PM +0200, Holger Hoffstätte wrote:
> [cc: Mark and Qu]
> 
> On 04/08/16 13:51, Holger Hoffstätte wrote:
> > On 04/08/16 13:14, Filipe Manana wrote:
> >> Using Chris' for-linus-4.6 branch, which is 4.5-rc6 + all 4.6 btrfs
> >> patches, it didn't reproduce here:
> > 
> > Great, that's good to know (sort of :). Thanks also to Liu Bo.
> > 
> >> Are you sure that you are not using some patches not in 4.6?
> 
> We have a bingo!
> 
> Reverting "qgroup: Fix qgroup accounting when creating snapshot"
> from last Wednesday immediately fixes the problem.

Not surprising, I had some issues testing it out too. I'm pretty sure this
patch is corrupting memory, I just haven't found where yet though my
educated guess is that the transaction is being reused improperly.
	--Mark

--
Mark Fasheh