From: Andrey Borzenkov <arvidjaar@mail.ru>
To: Pavel Machek <pavel@ucw.cz>
Subject: Re: 2.6.19-rc5: grub is much slower resuming from suspend-to-disk than in 2.6.18
Date: Tue, 14 Nov 2006 23:47:27 +0300
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Cc: Stefan Seyfried <seife@suse.de>, Zan Lynx <zlynx@acm.org>,
       linux-kernel@vger.kernel.org
References: <200611121436.46436.arvidjaar@mail.ru> <200611140707.17935.arvidjaar@mail.ru> <20061114142353.GB2340@elf.ucw.cz>
In-Reply-To: <20061114142353.GB2340@elf.ucw.cz>
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On Tuesday 14 November 2006 17:23, Pavel Machek wrote:
> Hi!
>
> > > > Maybe its a journal size thing, you could try "sync" before suspend
> > > > and see if it helps.
> > >
> > > We already sync inside the kernel, it does not help here, though.
> > > Blockdev freezing might help.
> >
> > is there patch applicable to vanilla kernel? After repairing reiser
> > several times (due to hard lockups during suspend-to-RAM) that sounds
> > even more interesting.
>
> Could you do the test Stefan asked? I do not think you'll kill
> reiserfs by single forced powerdown.
> 

well, I did it accidentally :) (forgot to plug in power and after 2 hours on 
battery notebook simply switched off) and yes, there was some noticeable 
delay loading grub. I also tried fs freezer without any visible effect. The 
patches from mm I applied to vanilla kernel:

add-include-linux-freezerh-and-move-definitions-from.patch
swsusp-cleanup-whitespace-in-freezer-output.patch
swsusp-freeze-filesystems-during-suspend-rev-2.patch
swsusp-thaw-userspace-and-kernel-space-separately.patch

Do I need some more patches for this to work?

- -andrey
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