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Date: Mon, 24 Apr 2006 09:55:11 +0200
From: Pavel Machek <pavel@suse.cz>
To: Jeff Chua <jeff.chua.linux@gmail.com>
Cc: Hugh Dickins <hugh@veritas.com>, Chris Ball <cjb@mrao.cam.ac.uk>,
       Arkadiusz Miskiewicz <arekm@maven.pl>, Jeff Garzik <jeff@garzik.org>,
       Matt Mackall <mpm@selenic.com>, Jens Axboe <axboe@suse.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: sata suspend resume ... (fwd)
Message-ID: <20060424075511.GA26345@elf.ucw.cz>
References: <Pine.LNX.4.64.0604232153230.2890@boston.corp.fedex.com>
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Hi!

> >>FWIW, this patch fixes S3 resume for me too.  I'm on an Alienware m5500
> >>using sd_mod and ata_piix, and I think your T43p is using AHCI, so it
> >>seems that this fixes a libata-wide problem rather than something
> >>specific to your hardware.
> >
> >Thanks for the info, that is useful; but in fact I'm ata_piix not ahci.
> 
> 
> May be just me, not matter what I tried, it still doesn't work. Closest I 
> can get is to use "resume=/dev/sda" on boot, able to suspend, able to 
> resume to X windows, can do anything, but can't access disk. ... simple 
> "ls" would hang. Dmesg is show SATA disk timeout.
> 
> 
> I've tried both "piix" and "ahci". Both suspend to disk and mem.

Do suspend-to-disk, first. It is easier.

> My config ...
> 	CONFIG_SUSPEND2_CRYPTO=y
> 	CONFIG_SUSPEND2=y
> 	CONFIG_SUSPEND2_SWAPWRITER=y
> 	CONFIG_SUSPEND2_DEFAULT_RESUME2="swap:/dev/sda3"

You'll want to go with vanilla kernel.

> Linux version is 2.6.17-rc2. IBM X60s is Pentium D, so SMP ... may be this 
> has something to do with it.

Disable SMP in kernel config, then; it makes perfect sense to test it
UP.

									Pavel
-- 
Thanks for all the (sleeping) penguins.