linux-kernel - Re: [5/6] 2.6.21-rc2: known regressions

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Date:	Tue, 06 Mar 2007 12:36:17 +0100
From:	Soeren Sonnenburg <kernel@....de>
To:	"Michael S\. Tsirkin" <mst@...lanox.co.il>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Emil Karlson <jkarlson@...hut.fi>, Len Brown <lenb@...nel.org>
Subject: Re: [5/6] 2.6.21-rc2: known regressions

On Tue, 2007-03-06 at 12:46 +0200, Michael S. Tsirkin wrote:
> > Quoting Ingo Molnar <mingo@...e.hu>:
> > Subject: Re: [5/6] 2.6.21-rc2: known regressions
> > 
> > 
> > * Michael S. Tsirkin <mst@...lanox.co.il> wrote:
> > 
> > > > Quoting Linus Torvalds <torvalds@...ux-foundation.org>:
> > > >
> > > > Ok, it does indeed solve the problem for me.
> > > 
> > > Not yet for me unfortunately, although this seems to help.
> > > Is this the patch I should have applied?
> > > http://lkml.org/lkml/2007/3/5/445
> > > 
> > > With this applied, on resume I get *some* screen output soon after 
> > > resume (e.g. with s2ram I get several characters on VGA, X starts 
> > > drawing some windows) but then the crescent symbol starts blinking 
> > > again and the system hangs.
> > 
> > could you try this via s2ram on a text console, to see whether the 
> > kernel spits out any warning before it locks up?
> 
> Yes, that's what I did. Unfortunately only a couple of characters were
> shown before it locked up.
> 
> I still need to check what does this do in the NO_HZ configuration.
> 
> BTW, Ingo, can you suspend/resume any number of times with this patch?

well I could at least two times in a row in my minimalistic setup
(config attached) however using the full kernel config it still
hangs ... (config also attached in case you watn to compare it).

Soeren
-- 
Sometimes, there's a moment as you're waking, when you become aware of
the real world around you, but you're still dreaming.

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