From: KOSAKI Motohiro <kosaki.motohiro@jp•fujitsu.com>
To: Jens Axboe <jens.axboe@oracle•com>
Cc: kosaki.motohiro@jp•fujitsu.com,
Stephen Rothwell <sfr@canb•auug.org.au>,
linux-next@vger•kernel.org, LKML <linux-kernel@vger•kernel.org>
Subject: Re: [bug?] bio: add experimental support for inlining a number of bio_vecs inside the bio
Date: Thu, 11 Dec 2008 09:39:23 +0900 (JST) [thread overview]
Message-ID: <20081211093620.4FE8.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20081210121237.GQ23742@kernel.dk>
> > experimental??
>
> Experimental in the sense that it's the first version, not the concept.
> It's held up well for me, but just yesterday I received the first bug
> report on a ppc platform and now you have this on ia64. Can you pin
> point where in __blk_complete_request() it dies with the NULL pointer
> deref? I'm assuming you don't have CONFIG_FAIL_IO_TIMEOUT set, otherwise
> I don't see how it could fail. So that looks like req->q being NULL,
> which doesn't have much relation to this.
>
> Can you try with slab and pagealloc debugging options switched on? The
> above looks like a side effect of some badness there.
Yes, I don't set CONFIG_FAIL_IO_TIMEOUT.
However, your memory corruption fixing patch solve my problem too.
http://marc.info/?l=linux-kernel&m=122891947725303&w=2
Thanks.
next prev parent reply other threads:[~2008-12-11 0:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-10 5:46 linux-next: Tree for December 10 Stephen Rothwell
2008-12-10 9:36 ` KOSAKI Motohiro
2008-12-10 12:05 ` [bug?] bio: add experimental support for inlining a number of bio_vecs inside the bio KOSAKI Motohiro
2008-12-10 12:12 ` Jens Axboe
2008-12-10 21:13 ` Andrew Morton
2008-12-11 7:32 ` Jens Axboe
2008-12-11 0:39 ` KOSAKI Motohiro [this message]
2008-12-10 9:39 ` linux-next: Tree for December 10 KOSAKI Motohiro
2008-12-10 11:21 ` KOSAKI Motohiro
2008-12-10 11:17 ` [BUILD-FAILURE] linux-next: next-20081210 - s390x - lcs drivers breaks with !CONFIG_IP_MULTICAST Kamalesh Babulal
2008-12-10 12:08 ` Heiko Carstens
2008-12-10 16:31 ` Kamalesh Babulal
2008-12-10 22:52 ` linux-next: Tree for December 10 Andrew Morton
2008-12-10 23:53 ` Rafael J. Wysocki
2008-12-11 0:38 ` Andrew Morton
2008-12-11 1:15 ` mpt fusion device warning 5 times KOSAKI Motohiro
2008-12-11 1:58 ` [PATCH] cpumask:cpumask_of_node-ia64 fix KOSAKI Motohiro
2008-12-11 4:09 ` [linux-next][PATCH] " KOSAKI Motohiro
2008-12-11 4:15 ` [PATCH] " Mike Travis
2008-12-11 4:31 ` Mike Travis
2008-12-11 4:53 ` KOSAKI Motohiro
2008-12-12 8:11 ` Rusty Russell
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