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Date: Tue, 05 Nov 2013 15:06:25 -0700 From: Stephen Warren <swarren@...dotorg.org> To: Chris Mason <chris.mason@...ionio.com>, Olof Johansson <olof@...om.net> CC: Jens Axboe <axboe@...nel.dk>, Tushar Behera <tushar.behera@...aro.org>, "linux-next@...r.kernel.org" <linux-next@...r.kernel.org>, lkml <linux-kernel@...r.kernel.org>, Kent Overstreet <kmo@...erainc.com> Subject: Re: Boot failure on Arndale with next-20131105 On 11/05/2013 01:56 PM, Chris Mason wrote: > Quoting Olof Johansson (2013-11-05 15:38:33) >> On Tue, Nov 5, 2013 at 12:33 PM, Chris Mason <chris.mason@...ionio.com> wrote: >>> Quoting Olof Johansson (2013-11-05 15:23:51) >>>> On Tue, Nov 5, 2013 at 11:33 AM, Jens Axboe <axboe@...nel.dk> wrote: >>> >>> [ horrible crashes fixed by removing my patch ] >>> ... > Ok, I think I see it. My guess is that you're hitting bounce buffers. > __blk_queue_bounce is the only caller of the bio splitting code I can > see that you might be hitting. > > My first patch exposed a lurking bug in bio_clone_biovec. Basically > bio->bi_vcnt is being doubled instead of initialized. > > This patch is only compile tested, but I think it'll fix it. Tested-by: Stephen Warren <swarren@...dia.com> (this fixes the issue on Tegra30/Beaver at least) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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