linux-kernel - Re: [PATCH 05/05] x86: Rename paravirtualized TSC functions

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Message-ID: <20080710075030.GA27361@elte.hu>
Date:	Thu, 10 Jul 2008 09:50:30 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	akataria@...are.com, Thomas Gleixner <tglx@...utronix.de>,
	the arch/x86 maintainers <x86@...nel.org>,
	Daniel Hecht <dhecht@...are.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jeremy Fitzhardinge <jeremy@...p.org>
Subject: Re: [PATCH 05/05] x86: Rename paravirtualized TSC functions


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> > that would be the tip/xen64 stuff, right? Does this revert:
> >
> > |    Revert "x86_64: there's no need to preallocate level1_fixmap_pgt"
> > |
> > |    This reverts commit 033786969d1d1b5af12a32a19d3a760314d05329.
> > |
> > |    Suresh Siddha reported that this broke booting on his 2GB testbox.
> >
> > solve your problems, or are there other problems still?
> 
> still is bisecting it now...

ok. I have no mystery crash on my test-systems.

by the looks of it, your crashes seem to be pagetable related. If it's 
in the tip/xen-64bit branch, my candidates would be:

 0f38c08: x86: use __page_aligned_data/bss
 0337869: x86_64: there's no need to preallocate level1_fixmap_pgt
 89d7bb5: x86_64: add workaround for no %gs-based percpu

0337869 is reverted already.

Or if it's an older commit, two candidates would be:

 b50efd2: x86: introduce page_size_mask for 64bit
 3a9e189: x86: map UV chipset space - pagetable

do you know the sha1 of the first broken tree? We know that 
tip-history-2008-07-08_16.08_Tue is known-good.

	Ingo
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