Date: Tue, 22 Dec 2015 20:23:21 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Mark Salter <msalter@redhat.com>,
        Laurent Dufour <ldufour@linux.vnet.ibm.com>,
        Ming Lei <ming.lei@canonical.com>, Jens Axboe <axboe@fb.com>,
        linux-block@vger.kernel.org
Subject: Re: [BUG] File system corruption with 4.4-rc3 and beyond
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	<CA+55aFz4hJ0UeRuO2_sQgyQcz2-NLsdBNCyjhSOGrWbk2gcc8w@mail.gmail.com>
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On Tue, 22 Dec 2015 16:17:25 -0800
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> We *just* fixed this. It was pretty subtle, and the debugging went on
> for several days. But the fixed got applied to the block tree earlier
> today, and I just pulled it only 15 minutes ago and pushed it out just
> now.

Just my luck. I've spent probably 5 days or more on this thinking it
was a hardware issue. :-/

> 
> So check current -git, it should work for you.
> 
> (And if you care about the particular fix: it's commit 23688bf4f830:
> "block: ensure to split after potentially bouncing a bio").

Thanks, I do care. I'll be backporting this commit to the kernel I test
for my own code.

> 
> And yes, the way to trigger it seems to be to run a 32-bit kernel and have PAE.

Yep, that's exactly the environment that I saw this in.

-- Steve
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