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Date: Wed, 23 Nov 2016 14:58:45 -0500
From: Dave Jones <davej@codemonkey.org.uk>
To: Chris Mason <clm@fb.com>,
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        Dave Chinner <david@fromorbit.com>
Subject: Re: bio linked list corruption.
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On Wed, Nov 23, 2016 at 02:34:19PM -0500, Dave Jones wrote:

 > [  317.689216] BUG: Bad page state in process kworker/u8:8  pfn:4d8fd4
 > trace from just before this happened. Does this shed any light ?
 > 
 > https://codemonkey.org.uk/junk/trace.txt

crap, I just noticed the timestamps in the trace come from quite a bit
later.  I'll tweak the code to do the taint checking/ftrace stop after
every syscall, that should narrow the window some more.

Getting closer..

	Dave