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Re: XFS: Assertion failed: del->br_blockcount > 0, file: fs/xfs/libxfs/x

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: XFS: Assertion failed: del->br_blockcount > 0, file: fs/xfs/libxfs/xfs_bmap.c, line: 5124
From: Ross Zwisler <zwisler@xxxxxxxxx>
Date: Mon, 12 Dec 2016 09:52:09 -0700
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>, XFS Developers <xfs@xxxxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>
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In-reply-to: <20161212025221.GV4326@dastard>
References: <20161209224214.GA2254@xxxxxxxxxxxxxxx> <20161212025221.GV4326@dastard>
On Sun, Dec 11, 2016 at 7:52 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
> On Fri, Dec 09, 2016 at 03:42:14PM -0700, Ross Zwisler wrote:
>> I'm able to consistently hit the following XFS assertion with v4.9-rc8 and
>> xfstest xfs/118 (log is passed through kasan_symbolize.py):
>
> commit 4dfce57db635 ("xfs: fix up xfs_swap_extent_forks inline
> extent handling") in the XFS for-next tree.
>
> Ross - when you get a failure in a brand new test in xfstests
> (xfs/118 was merged about a month ago), it's worth checking whether
> the problem is already fixed in the XFS for-next tree. In general,
> the regression tests exercising such bugs aren't merged until the
> fix has been committed...

Ah, thanks Dave.  This make sense, and I'll be sure to do this from now on.

- Ross

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