From: Tejun Heo <tj@kernel.org>
To: Shaohua Li <shaohua.li@intel.com>
Cc: Vivek Goyal <vgoyal@redhat.com>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Jens Axboe <axboe@kernel.dk>
Subject: Re: Kernel crash in icq_free_icq_rcu
Date: Tue, 17 Jan 2012 17:03:23 -0800 [thread overview]
Message-ID: <20120118010323.GA32160@htj.dyndns.org> (raw)
In-Reply-To: <CANejiEUfAxR-DFH+eRQUbmc1jKHSkcBP1RxuRQ-9JKLU=1Ds0w@mail.gmail.com>
Hello,
On Wed, Jan 18, 2012 at 09:01:00AM +0800, Shaohua Li wrote:
> 2012/1/18 Vivek Goyal <vgoyal@redhat.com>:
> >> Does the following patch make any difference?
> >
> > Nope. Still can reproduce the issue.
>
> I had similar issue too. Looks ioc_create_icq finds an icq (in ioc_lookup_icq)
> the icq is in rcu free (it has __rcu_icq_cache set)
Vivek is seeing the problem while switching elevators. Are you too?
Or is it during normal operation?
Thanks.
--
tejun
next prev parent reply other threads:[~2012-01-18 1:03 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-17 20:18 Vivek Goyal
2012-01-17 20:19 ` Jens Axboe
2012-01-17 20:40 ` Vivek Goyal
2012-01-17 20:42 ` Jens Axboe
2012-01-17 20:58 ` Vivek Goyal
2012-01-17 21:01 ` Vivek Goyal
2012-01-17 21:48 ` Tejun Heo
2012-01-17 22:07 ` Vivek Goyal
2012-01-18 1:01 ` Shaohua Li
2012-01-18 1:03 ` Tejun Heo [this message]
2012-01-18 1:05 ` Shaohua Li
2012-01-18 1:11 ` Tejun Heo
2012-01-18 1:30 ` Shaohua Li
2012-01-18 2:26 ` Shaohua Li
2012-01-18 4:23 ` Shaohua Li
2012-01-18 6:03 ` Shaohua Li
2012-01-18 13:51 ` Vivek Goyal
2012-01-18 14:20 ` Vivek Goyal
2012-01-18 16:09 ` Tejun Heo
2012-01-18 16:24 ` Jens Axboe
2012-01-18 16:31 ` Jens Axboe
2012-01-18 16:36 ` Vivek Goyal
2012-01-18 17:10 ` Tejun Heo
2012-01-18 19:07 ` Jens Axboe
2012-01-18 19:05 ` Jens Axboe
2012-01-18 16:55 ` Tejun Heo
2012-01-18 16:07 ` Tejun Heo
2012-01-19 1:41 ` [patch]block: fix NULL icq_cache reference Shaohua Li
2012-01-19 1:43 ` Tejun Heo
2012-01-19 8:20 ` Jens Axboe
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