linux-kernel - [PATCH 0/2] Was: 2.6.24-rc8 hangs at mfgpt-timer

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Message-ID: <20080123211746.GA2969@1wt.eu>
Date:	Wed, 23 Jan 2008 22:17:46 +0100
From:	Willy Tarreau <w@....eu>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Arnd Hannemann <hannemann@...informatik.rwth-aachen.de>,
	Jordan Crouse <jordan.crouse@....com>,
	Lars Heete <hel@...in.de>,
	Andres Salomon <dilinger@...ued.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 0/2] Was: 2.6.24-rc8 hangs at mfgpt-timer

On Tue, Jan 22, 2008 at 10:10:14PM +0100, Ingo Molnar wrote:
> 
> * Arnd Hannemann <hannemann@...informatik.rwth-aachen.de> wrote:
> 
> > > The attached patch rearranges the code so that the handler is 
> > > installed before we setup the interrupt (so we have somebody to 
> > > listen to the immediate interrupt), and it makes sure that we clear 
> > > the event in the IRQ handler regardless of the state of the timer 
> > > tick.
> > 
> > This patch indeed solves the problem. The board boots fine. Great 
> > work!
> 
> since this driver is new in 2.6.24, perhaps we should apply this fix to 
> v2.6.24?

Ingo, Jordan,

I have written the two minor patches we were talking about in previous
mail. The first one fixes the input clock from 32000 to 32768 Hz, and
the second one adds an "mfgptfix" boot parameter to enable the workaround
in order to fix a regression on motherboards with a broken BIOS on which
2.6.24-rc8 does not boot anymore whether mfgpt timers are enabled or not.

Jordan, if you think you'll push your changes for 2.6.24, feel free to
merge this patch with your work.

Both patches will be sent as a reply to this mail.

Regards,
Willy

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