Re: x86-64 bad pmds in 2.6.11.6 II

[Andi Kleen <ak@suse.de>]

On Thu, Apr 14, 2005 at 11:27:12AM -0700, Chris Wright wrote:
> * Andi Kleen (ak@suse.de) wrote:
> > > I will take a closer look at the rc1/rc2 patches later this evening
> > > and see if I can spot something. Can only report back tomorrow though.
> > 
> > Actually itt started in .11 already - sigh - on rereading the thread.
> > That will make the code audit harder :/
> 
> Yes, I've seen it in .11 and earlier kernels.  Happen to have same
> "x86_64" string on my bad pmd dumps, but can't reproduce it at all.
> So, for now, I can hold off on adding the reload cr3 patch to -stable
> unless you think it should be there anyway.

It is a bug fix (actually there is another related patch that fixes
a similar bug), but we lived with the problems for years so I guess
they can wait for .12. 

If there was a fix for the bad pmd problem it might be a candidate
for stable, but so far we dont know what causes it yet.

-Andi