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

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Date:	Tue, 06 Mar 2007 14:09:29 +0100
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Soeren Sonnenburg <kernel@....de>,
	"Michael S. Tsirkin" <mst@...lanox.co.il>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	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 13:51 +0100, Ingo Molnar wrote:
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > > > 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).
> > 
> > i can confirm that with your full config i see a hang too. This is 
> > most likely the ACPI problem - we are debugging this now and will come 
> > up with a patch.
> 
> update: this only happens with simulation, and even then it's not a full 
> hang but 'hangs until i hit a key'. With real resume i'm hitting a real 
> key anyway so it doesnt hang.

Hmm. The key is consumed in the BIOS, so there should be no
interrupt. /me digs deeper.

	tglx


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