linux-kernel - Re: [BUG] disk_free_ptbl_rcu

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Message-ID: <1287902670.2658.580.camel@edumazet-laptop>
Date:	Sun, 24 Oct 2010 08:44:30 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jens Axboe <jaxboe@...ionio.com>
Cc:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] disk_free_ptbl_rcu_cb() crash

Le dimanche 24 octobre 2010 à 08:04 +0200, Jens Axboe a écrit :
> On 2010-10-23 23:10, Eric Dumazet wrote:
> > Current Linus tree makes my machine crash in disk_free_ptbl_rcu_cb(),
> > while booting...
> > 
> > commit 7681bfeeccff5ef seems the problem ?
> > 
> > Following patch solves the NULL dereference, but this is only to show
> > you where the problem is, not a real fix, of course.
> 
> Darn. Your fix is on the right path, you missed one though. I think it's
> cleaner to move this into the elevator helpers, so that the callers can
> remain clean.
> 
> Can you verify that this works too?

Sure, I did right now and it works too, thanks !


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