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Message-ID: <4D77D1F2.2030104@fusionio.com> Date: Wed, 9 Mar 2011 20:16:02 +0100 From: Jens Axboe <jaxboe@...ionio.com> To: Tejun Heo <tj@...nel.org> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "kay.sievers@...y.org" <kay.sievers@...y.org>, "hch@...radead.org" <hch@...radead.org> Subject: Re: block: Fix oops caused by __blkdev_get() calling disk_unblock_events() with invalid @disk On 2011-03-09 19:59, Tejun Heo wrote: > On Wed, Mar 09, 2011 at 07:26:44PM +0100, Jens Axboe wrote: >>> This is fixed by moving reference putting after open success is >>> determined and not clearing @disk to %NULL. On success, @disk is >>> valid because there is another opener holding reference to it. On >>> failure, the references are put after disk_unblock_events() is >>> called. >> >> Thanks, applied. A bit unfortunate to have a 100% crasher in the tree, >> though. Will suck for bisects. > > Yeah, that does suck. I folded in the fix to the offending commit and > regenerated the tree in case you want to rebase the tree. > > ssh://master.kernel.org/pub/scm/linux/kernel/git/tj/misc.git disk-event-convert-fixed Thanks, but it's pretty deep in at this point. I'll take a look at it. -- Jens Axboe -- 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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