From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Stern <stern@rowland.harvard.edu>
Subject: Re: question on freeze and aio
Date: Fri, 9 Feb 2007 17:23:09 -0500 (EST)
Message-ID: <Pine.LNX.4.44L0.0702091722370.4557-100000@iolanthe.rowland.org>
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To: Nigel Cunningham <nigel@nigel.suspend2.net>
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On Sat, 10 Feb 2007, Nigel Cunningham wrote:

> > aio callbacks are interrupt-driven and execute in a workqueue (see
> > fs/aio.c), and as far as I can tell that workqueue doesn't freeze.  =

> > Unless some general facility freezes all workqueues...
> =

> Hmm. That applies to Raid, too? I've had some reports of raid i/o being
> caught in the BUG_ON() I have to catch I/O that shouldn't be happening,
> but haven't gotten around to looking at them yet.

Sorry, I don't know how the RAID drivers work.

Alan Stern