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From: Alan Stern <stern@rowland.harvard.edu>
To: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: linux-pm@lists.osdl.org
Subject: Re: question on freeze and aio
Date: Fri, 9 Feb 2007 17:23:09 -0500 (EST)	[thread overview]
Message-ID: <Pine.LNX.4.44L0.0702091722370.4557-100000@iolanthe.rowland.org> (raw)
In-Reply-To: <1171058926.1484.74.camel@nigel.suspend2.net>

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

  parent reply	other threads:[~2007-02-09 22:23 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-09 16:04 question on freeze and aio Oliver Neukum
2007-02-09 21:24 ` Rafael J. Wysocki
2007-02-09 21:29 ` Nigel Cunningham
2007-02-09 22:03   ` Alan Stern
2007-02-09 22:08     ` Nigel Cunningham
2007-02-09 22:16       ` Rafael J. Wysocki
2007-02-09 22:23       ` Alan Stern [this message]
2007-02-09 22:09     ` Rafael J. Wysocki
2007-02-13 10:18       ` Pavel Machek
2007-02-13 15:53         ` Rafael J. Wysocki
2007-02-14 21:44           ` Pavel Machek
2007-02-13 21:01         ` Alan Stern
2007-02-14 17:25           ` Randy Dunlap
2007-02-14 21:32             ` Rafael J. Wysocki
2007-02-14 21:28           ` Rafael J. Wysocki
2007-02-14 23:40             ` Rafael J. Wysocki
2007-02-13 10:17     ` Pavel Machek
2007-02-13 15:54       ` Rafael J. Wysocki
2007-02-13 10:16 ` Pavel Machek

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