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

[Ingo Molnar <mingo@elte.hu>]

* Yinghai Lu <yhlu.kernel@gmail.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