Re: New release candidate for Xen 4.0.0 (RC9)

[Keir Fraser <keir.fraser@eu.citrix.com>]

On 31/03/2010 20:52, "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com> wrote:

>>> I don't have a fix, but I did this (this is with xen/stable-2.6.32.x
>>> latest and also rolled back to git commit
>>> 47bd9cad11b1a723c6e5d1127aebe570a3e34f34
>>> with a cherry pick of d3b9e35a81e31ff4edb4666f9c36eb5b2032f4da - just in
>>> case
>>> the problem was due to the PAT changes):
>> 
>> Is it a regression?
> 
> I haven't tried this type of operation before so I can't comment. I can
> spin out a Xen hypervisor - what version back do you want me to compare
> to?

Last stable release (3.4.2). Or even 3.4-testing tip.

I'm only interested in fixing regressions right now for 4.0.0. If this bug
has existed since at least 3.4 then the fix (when we have one!) can wait a
bit longer, for 4.0.1. My guess is that the MTRR interface is getting little
use and rotted some time ago.

 -- Keir

> 
> Interestingly, on Intel it makes the machine crawl and gets CPU#0 stuck,
> while on AMD I get that nice crash.