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Date: Tue, 14 Sep 2010 13:18:02 +0200 From: Stefan Richter <stefanr@...6.in-berlin.de> To: Jens Axboe <axboe@...nel.dk> CC: Andrew Morton <akpm@...ux-foundation.org>, Florian Mickler <florian@...kler.org>, linux-kernel@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org, linux-scsi@...r.kernel.org Subject: Re: [Bug 18252] spinlock lockup in __make_request <- submit_bio <- ondemand_readahead Jens Axboe wrote: > On 2010-09-14 08:56, Stefan Richter wrote: >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=18252 >> Florian Mickler wrote: >>> There was an scsi-related use-after-free OOPS fixed recently and pulled 3 days >>> ago. ... >>> Maybe you are seeing that? >>> >>> (reacting to the general-protection-fault preceded by scsi_init in the >>> attachment jpg) >> Now that you point it out --- perhaps. Though I haven't looked into the >> mechanics of the now fixed scsi_ini_io use after free. > > It seems the very likely explanation, since I can't see any other way that > you would deadlock on the queue lock from that call trace if you haven't > had someone else crash with the lock held already. Good, I close the bugzilla item right away with the reasonable assuption that it is fixed by commit 3a5c19c23db65a554f2e4f5df5f307c668277056. -- Stefan Richter -=====-==-=- =--= -===- http://arcgraph.de/sr/ -- 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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