linux-kernel - Re: [BUG] IO-APIC + timer doesn't work!

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Message-ID: <20090420090400.GC7286@alberich.amd.com>
Date:	Mon, 20 Apr 2009 11:04:00 +0200
From:	Andreas Herrmann <andreas.herrmann3@....com>
To:	Jeff Mahoney <jeffm@...e.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [BUG] IO-APIC + timer doesn't work!

On Fri, Apr 17, 2009 at 11:15:39AM -0400, Jeff Mahoney wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi all -
> 
> I saw this while booting 2.6.30-rc1, -rc2, and today's git, on one of
> my development nodes. This output is with apic=debug. With noapic,
> it still hung. Both outputs follow.
> 
> git bisect leads to commit 8d6f0c8214928f7c5083dd54ecb69c5d615b516e,
> but I'm not seeing anything obvious there. Backing just that change
> out doesn't fix it.

It's the next commit c23e253e67c9d8a91a0ffa33c1f571a17f0a2403 that
causes the problems.

On another system I've seen that resetting the HPET_COUNTER did not
take effect. I am going to provide a fix for that but had no time yet
to test this on an affected system.


Regards,
Andreas


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