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Date: Tue, 25 Dec 2001 11:35:54 +0000
From: Pavel Machek <pavel@suse.cz>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "\"M. Edward (Ed) Borasky\"" <znmeb@aracnet.com>,
        Russell King <rmk@arm.linux.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Total system lockup with Alt-SysRQ-L
Message-ID: <20011225113554.B37@toy.ucw.cz>
In-Reply-To: <Pine.LNX.4.33.0112240621370.26289-100000@shell1.aracnet.com> <E16IYZu-0004an-00@the-village.bc.nu>
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Hi!

> > option, would be a one-button "sync up all the disks, forbid any more
> > writes, save as much state as possbile (registers, memory) to a swap
> > partition, set a flag for crash dump processing and reboot" capability.
> 
> Very hard to do - you can't trust the I/O systems state so the dump code

Actually... swsusp should be usable for most of this... But swsusp will
not work in bad state and I guess that's showtopper.
 
-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.

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