From: Olof Johansson <olof@lixom.net>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-ia64@vger.kernel.org
Subject: Re: system hang on latest git
Date: Tue, 29 Jan 2008 15:56:49 -0600 [thread overview]
Message-ID: <20080129215648.GB28997@lixom.net> (raw)
In-Reply-To: <20080129213852.GF15220@kernel.dk>
On Tue, Jan 29, 2008 at 10:38:52PM +0100, Jens Axboe wrote:
> Please try this.
[...]
> The latter is the problem, but since the queue lock is also held before
> doing the double_spin_lock(), we get into even more trouble. The locking
> hierarchy is fine, it's always queue lock -> io context locks, so the
> above patch should be all that is needed to fix this.
>
> My initial analysis was wrong, that's all :/
Yep, looks much better now.
Tested-by: Olof Johansson <olof@lixom.net>
-Olof
prev parent reply other threads:[~2008-01-29 21:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-29 19:15 Luck, Tony
2008-01-29 20:11 ` Jens Axboe
2008-01-29 20:16 ` Jens Axboe
2008-01-29 21:46 ` Olof Johansson
2008-01-29 21:38 ` Jens Axboe
2008-01-29 21:56 ` Olof Johansson [this message]
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