linux-kernel - Re: [patch 0/2] suspend/resume regression fixes

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Date:	Sun, 23 Sep 2007 16:00:22 +0300
From:	Mihai Donțu <mihai.dontu@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Verych <olecom@...wer.upol.cz>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Len Brown <lenb@...nel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [patch 0/2] suspend/resume regression fixes

On Sunday 23 September 2007, Alan Cox wrote:
> >   I switched to libata, but it behaves like the old IDE without ACPI. I
> >   did not manage to get a full dmesg (apparently all volumes are mounted
> >   r/o right after a power up from a s2ram) but I did make a picture, from
> >   which I quote (if I may say so):
> 
> Device errors. 
> 
> Libata currently (wrongly IMHO) defaults to avoiding the use of ACPI
> suspend/resume methods
> 
> So you also need to boot with  "libata.noacpi=0" and if that works beat
> up Jeff a bit ..

  You were right, 'libata.noacpi=0' does the trick :)

  It's interesting my mmc is unmounted before s2ram and then mounted back
  on resume.

  So, to sum  up, I have a working suspend-to-ram with libata. Not bad, not
  bad at all...

  Thanks,

-- 
Mihai Donțu
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