Subject: Re: bio linked list corruption.
To: Dave Jones <davej@codemonkey.org.uk>, Chris Mason <clm@fb.com>,
        "Linus Torvalds" <torvalds@linux-foundation.org>,
        Andy Lutomirski <luto@amacapital.net>,
        Andy Lutomirski <luto@kernel.org>, Al Viro <viro@zeniv.linux.org.uk>,
        Josef Bacik <jbacik@fb.com>, David Sterba <dsterba@suse.com>,
        linux-btrfs <linux-btrfs@vger.kernel.org>,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        Dave Chinner <david@fromorbit.com>
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From: Jens Axboe <axboe@fb.com>
Message-ID: <b18208b6-f2f4-ddbb-a5b9-1c90ac7321f5@fb.com>
Date: Wed, 26 Oct 2016 18:00:34 -0600
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On 10/26/2016 05:47 PM, Dave Jones wrote:
> On Wed, Oct 26, 2016 at 07:38:08PM -0400, Chris Mason wrote:
>
>  > >-	hctx->queued++;
>  > >-	data->hctx = hctx;
>  > >-	data->ctx = ctx;
>  > >+	data->hctx = alloc_data.hctx;
>  > >+	data->ctx = alloc_data.ctx;
>  > >+	data->hctx->queued++;
>  > > 	return rq;
>  > > }
>  >
>  > This made it through an entire dbench 2048 run on btrfs.  My script has
>  > it running in a loop, but this is farther than I've gotten before.
>  > Looking great so far.
>
> Fixed the splat during boot for me too.
> Now the fun part, let's see if it fixed the 'weird shit' that Trinity
> was stumbling on.

Let's let the testing simmer overnight, then I'll turn this into a real
patch tomorrow and get it submitted.

-- 
Jens Axboe