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From: Jeff Moyer <jmoyer@redhat.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Jens Axboe <axboe@kernel.dk>, Tejun Heo <htejun@gmail.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: exit_aio() hang after I/O failure
References: <CAO+b5-orBaZMmmw1_5Jo+oSEDu8yXrXt-cAcZxQeqkmFkP8efA@mail.gmail.com>
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Date: Mon, 23 Jan 2012 11:15:04 -0500
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	(Bart Van Assche's message of "Sun, 22 Jan 2012 12:48:37 +0000")
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Bart Van Assche <bvanassche@acm.org> writes:

> Hi,
>
> Apparently processes can hang in exit_aio() with at least kernel 3.2.1
> after an I/O failure. Has anyone seen this before ?
>
> This occurred after a SCSI device had been removed entirely (and hence
> after all I/O requests were killed by scsi_remove_host()).

Fixed here:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=69e4747ee9727d660b88d7e1efe0f4afcb35db1b

Cheers,
Jeff