linux-kernel - Re: [patch] PM: suspend/resume debugging should depend on SOFTWARE

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Date:	Sun, 26 Nov 2006 11:13:12 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Robert Hancock <hancockr@...w.ca>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Alan <alan@...rguk.ukuu.org.uk>, Pavel Machek <pavel@....cz>
Subject: Re: [patch] PM: suspend/resume debugging should depend on SOFTWARE_SUSPEND

On Sunday, 26 November 2006 08:11, Robert Hancock wrote:
> Alan wrote:
> > Lots of other controllers don't work correctly on resume but thats much
> > less of a problem and with UDMA misclocking generally turns into a CRC
> > error storm and stop.
> > 
> > Andrew has about 2/3rds of the bits I've done now, will push the rest
> > when I've done a little more testing/checking. At that point libata ought
> > to be resume safe. Someone who cares about drivers/ide legacy support can
> > then copy the work over.
> 
> btw, I have some code almost ready for sata_nv to add proper 
> suspend/resume support. Unfortunately I have trouble testing it, since 
> STR doesn't work on my machine since, guess what - the video doesn't 
> come back! It doesn't even take the monitor out of standby mode. None of 
> the acpi_sleep options seem to work, and vbetool appears to helpfully 
> segfault on any operation so that's out.

I guess it's x86-64?  Which version of vbetool?

> This is an NVIDIA SLI setup so that probably makes things a bit more
> complicated.

Ouch.

> In any case, it should be better than what we have right now for 
> suspend/resume support in sata_nv, namely the "do nothing, won't work 
> (at least not for CK804 and later)" implementation..

I think I can test it if you send me the patch.

Greetings,
Rafael


-- 
You never change things by fighting the existing reality.
		R. Buckminster Fuller
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