linux-kernel - Re: linux-next: Tree for June 13: IO APIC breakage on HP nx6325

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Date:	Sun, 22 Jun 2008 00:47:00 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>
Subject: Re: linux-next: Tree for June 13: IO APIC breakage on HP nx6325

On Wednesday, 18 of June 2008, Thomas Gleixner wrote:
> On Wed, 18 Jun 2008, Rafael J. Wysocki wrote:
> > > I just checked that the original c1e series and the affected code in
> > > tip are not different. IIRC you confirmed that the C1E patches would
> > > work on your box. So I wonder what else got changed which causes these
> > > problems.
> > 
> > Well, to eliminate any possible correlations, do you have a version of the
> > series or a single patch against the current mainline?
> 
> http://userweb.kernel.org/~tglx/952f4a-c1e-apic.patch
> http://userweb.kernel.org/~tglx/952f4a-c1e.patch
> 
> c1e-apic is the forward port of the apic changes and c1e is the pure
> c1e stuff. On my box it does not work w/o the c1e-apic one, but ....

Unfortunately, with the c1e.patch on top of the apic.patch on top of the
current mainline I get the same symptoms as with -next:
- processes freeze
- CPU loads are unreasonably high
- things generally get stucked if I don't move the mouse or press keys

Removing the the c1e.patch makes things work again.

Thanks,
Rafael
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