From: Jens Axboe <jens.axboe@oracle.com>
To: scameron@beardog.cca.cpqcorp.net
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
mikem@roadking.cca.cpqcorp.net
Subject: Re: [patch] cciss: Fix problem that deleting multiple logical drives could cause a panic
Date: Thu, 18 Dec 2008 14:57:21 +0100 [thread overview]
Message-ID: <20081218135720.GR32491@kernel.dk> (raw)
In-Reply-To: <20081216204945.GN1126@beardog.cca.cpqcorp.net>
On Tue, Dec 16 2008, scameron@beardog.cca.cpqcorp.net wrote:
> On Tue, Dec 16, 2008 at 09:27:30PM +0100, Jens Axboe wrote:
> > On Tue, Dec 16 2008, scameron@beardog.cca.cpqcorp.net wrote:
> > >
> > > Fix problem that deleting multiple logical drives could cause a panic.
> >
> > This looks like a 2.6.28 candidate, correct?
>
> Yes, and we would like to get it in anywhere else it needs to go
> (backport to 2.6.27.x? if that makes sense.)
>
> It fixes a panic which can be easily reproduced in the following
> way: Just create several "arrays," each with multiple logical
> drives via hpacucli, then delete the first array, and it will blow
> up in deregister_disk(), in the call to get_host() when it tries to
> dig the hba pointer out of a NULL queue pointer.
>
> The problem has been present since my code to make
> rebuild_lun_table behave better went in.
OK, I'll make sure it goes upstream for 2.6.28. I've merged your other
cciss patch for 2.6.29.
--
Jens Axboe
prev parent reply other threads:[~2008-12-18 13:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-16 20:17 [patch] cciss: Fix problem that deleting multiple logical drives could cause a panic scameron
2008-12-16 20:27 ` Jens Axboe
2008-12-16 20:49 ` scameron
2008-12-18 13:57 ` Jens Axboe [this message]
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