linux-kernel - Re: Kernel crash in icq_free_icq

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Message-ID: <20120118165518.GC30664@google.com>
Date:	Wed, 18 Jan 2012 08:55:18 -0800
From:	Tejun Heo <tj@...nel.org>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Vivek Goyal <vgoyal@...hat.com>, Shaohua Li <shaohua.li@...el.com>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: Kernel crash in icq_free_icq_rcu

Hello, Jens.

On Wed, Jan 18, 2012 at 05:31:06PM +0100, Jens Axboe wrote:
> Something like the below, completely untested.

Yeah, I was thinking about mostly identical approach.  We should do
about the same thing for elv_bio_merged() too.

> But thinking about this a bit while doing it, why is the IO scheduler
> going away while we have plugged requests that are elvpriv?

AFAICS, we don't check whether the request has priv or not.

Thanks.

-- 
tejun
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