linux-kernel - Re: 2.6.19-rc5: grub is much slower resuming from suspend-to-disk than in 2.6.18

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Message-ID: <20061113225500.GF2760@suse.de>
Date:	Mon, 13 Nov 2006 23:55:00 +0100
From:	Stefan Seyfried <seife@...e.de>
To:	Andrey Borzenkov <arvidjaar@...l.ru>
Cc:	linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>
Subject: Re: 2.6.19-rc5: grub is much slower resuming from suspend-to-disk than in 2.6.18

On Mon, Nov 13, 2006 at 09:54:38PM +0300, Andrey Borzenkov wrote:
> Hash: SHA1
> 
> On Monday 13 November 2006 11:15, Stefan Seyfried wrote:
> > The most important question:
> > What filesystem is your /boot on? I'd bet quite some money that it is
> > reiser or some other journaling FS (not ext3).
> >
> 
> there is no /boot, I use single / which is reiser.

ok, so your /boot is on reiser. Q.E.D.

> > I am pretty sure that it will also happen if you do "updatedb &", wait a
> > minute and then do a _HARD_ power off.
> >
> > I am pretty sure that it has nothing to do with the kernel version, just
> > with the layout of your /boot partition (which of course changes with every
> > kernel update). In other words: until now, you just have been lucky.
> 
> The idea is nice; unfortunately it fails to explain the difference 
> between 'poweroff'

filesystem cleanly unmounted

> and 'suspend disk'

filesystem unclean.

> cases. I doubt disk layout is changed 
> between them.

Try the "updatedb &, then _HARD_ poweroff" test described above. It will take
long to load grub afterwards.

-- 
Stefan Seyfried
QA / R&D Team Mobile Devices        |              "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg  | "Well, surrounding them's out." 
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