Re: [2.6.18] Suspend to ram and SATA

[Martin Lorenz <martin@lorenz.eu.org>]

On Thu, Nov 02, 2006 at 10:22:56PM +0100, Maciej Rutecki wrote:
> I have problem with suspend to ram, and my SATA drive. When I try:
> 
> echo mem > /sys/power/state
> 
> system goes standby, but when doing the resume it
> would come back and have I/O errors similar like this ((copied from
> paper notes, the disk is no longer writable when the error happens)
> 
> kernel: journal commit I/O error
> end_request: I/O error, dev sda, sector xxxxxxxx
> sd 0:0:0:0: SCSI error return code: 0xxxxxx
> 
> Problem is similar like this:
> http://marc.theaimsgroup.com/?l=linux-kernel&m=111409309804068&w=2
> http://www.thinkwiki.org/wiki/Problems_with_SATA_and_Linux
> http://lkml.org/lkml/2005/9/23/97
> 
> I test it in 2.6.18.1 (with initrd) and 2.6.18 (with and without initrd).

for 2.6.18 there is a patch which makes AHCI sata behave correctly on
suspend/resume. it was originally written by Forrest Zhao and is now
included in the 2.6.19-rcX tree

you can apply the libata patch that went into 2.6.18-mm1. it is to be found
in the broken-out dir of 2.6.18-mm1 and named
git-libata-all-2.6.18-mm1.patch

when applying it to 2.6.18.1 you will get three rejects because the patches
are already in 2.6.18.1. simply say 'n' -> 'n' on those three. 


> 
> Hardware: HP/Compaq nx6310
> 
> -- 
> Maciej Rutecki <maciej.rutecki@gmail.com>
> http://www.unixy.pl
> LTG - Linux Testers Group
> (http://www.stardust.webpages.pl/ltg/wiki/)











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