linux-kernel - Re: [PATCH] Remove process freezer from suspend to RAM pathway

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Message-Id: <200707031454.42078.nigel@nigel.suspend2.net>
Date:	Tue, 3 Jul 2007 14:54:41 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org
Subject: Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Tuesday 03 July 2007 14:29:18 Matthew Garrett wrote:
> Suspend to RAM on a machine with / on a fuse filesystem turns out to be 
> a screaming nightmare - either the suspend fails because syslog (for 
> instance) can't be frozen, or the machine deadlocks for some other 
> reason I haven't tracked down. We could "fix" fuse, or alternatively we 
> could do what we do for suspend to RAM on other platforms (PPC and APM) 
> and just not use the freezer.
> 
> Signed-off-by: Matthew Garrett <mjg59@...f.ucam.org>

Note, though, that this won't help at all when people use the "suspend-to-ram 
instead of powering down after writing a hibernation image" feature in 
(uswsusp | tuxonice). Fuse is just a broken idea in the first place, but 
given that it exists, we still need to find the underlying cause.

Regards,

Nigel

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