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Message-ID: <20140722103857.GK12054@laptop.lan> Date: Tue, 22 Jul 2014 12:38:57 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Bruno Wolff III <bruno@...ff.to> Cc: Dietmar Eggemann <dietmar.eggemann@....com>, Josh Boyer <jwboyer@...hat.com>, "mingo@...hat.com" <mingo@...hat.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: Scheduler regression from caffcdd8d27ba78730d5540396ce72ad022aff2c On Tue, Jul 22, 2014 at 11:47:40AM +0200, Peter Zijlstra wrote: > On Mon, Jul 21, 2014 at 06:52:12PM +0200, Peter Zijlstra wrote: > > On Mon, Jul 21, 2014 at 11:35:28AM -0500, Bruno Wolff III wrote: > > > Is there more I can do to help with this now? Or should I just wait for > > > patches to test? > > > > Yeah, sorry, was wiped out today. I'll go stare harder at the P4 > > topology setup code tomorrow. Something fishy there. > > Does this make your machine boot again (while giving an error)? > > It tries to robustify the topology setup a bit, crashing on crap input > should be avoided if possible of course. > > I'll go stare at the x86/P4 topology code like promised. Could you provide the output of cpuid and cpuid -r for your machine? This code is magic and I've no idea what your machine is telling it to do :/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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