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

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Message-ID: <20070306104618.GA5792@mellanox.co.il>
Date:	Tue, 6 Mar 2007 12:46:18 +0200
From:	"Michael S. Tsirkin" <mst@...lanox.co.il>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	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>,
	Soeren Sonnenburg <kernel@....de>, Len Brown <lenb@...nel.org>
Subject: Re: [5/6] 2.6.21-rc2: known regressions

> 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?

-- 
MST
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