linux-kernel - Re: [patch] KVM: T60 resume fix

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Date:	Mon, 5 Mar 2007 14:32:21 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Michael S. Tsirkin" <mst@...lanox.co.il>
Cc:	Avi Kivity <avi@...ranet.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Pavel Machek <pavel@....cz>, Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>, linux-pm@...ts.osdl.org,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Daniel Walker <dwalker@...sta.com>, Len Brown <lenb@...nel.org>
Subject: Re: [patch] KVM: T60 resume fix


* Michael S. Tsirkin <mst@...lanox.co.il> wrote:

> > could you try 's2ram' from http://suspend.sf.net ? It's basically 
> > equivalent to 'echo mem > /sys/power/state', but you can usually also 
> > see the reason why it doesnt resume, on the vga console. (by default the 
> > kernel doesnt resume the t60's vga properly)
> 
> OK, I'll give it a try. Do I have to shut down X or is it enough to 
> switch to another VT?

s2ram takes care of that on your behalf.

> > on my box resume works, but it's incredibly slow.
> 
> I guess it is possible that what I mistook for a hang was actually an 
> incredibly slow system, and that it would resume, eventually. I waited 
> for 5 min and gave up.

5 min should be enough to have the box pingable again.

> However, after resume was completed, system would hang on the *next* 
> suspend to ram.
> 
> Ingo, do you see this behaviour, or can you suspend/resume any number 
> of times?

havent tried that yet - first trying to figure out why the first resume 
misbehaves ;)

	Ingo
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