Subject: Re: mutex fault
To: Kazushi Marukawa <firstname.lastname@example.org>
From: Manuel Bouyer <email@example.com>
Date: 12/19/2007 20:01:13
On Wed, Dec 19, 2007 at 12:04:25AM +0900, Kazushi Marukawa wrote:
> Is your kernel crashed? Mine didn't crash. It looks like
> this LOCKDEBUG kernel won't crash, so I stopped this test.
It didn't crash either
> I'm now thinking Xen3 dom0 kernel on multi cores machine is
> having race condition issues. Therefore, I made following
I don't think it's limited to multi cores machines. A dom0 kernel
is UP anyway.
> patch to enable some pre-exist codes to avoid lock race
> conditions. With this patch, my machine has not been
> crashed yet for 2 days, looks like pretty working.
> I know this is not the answer. I just patched a hole. This
> doesn't fix the source of problem. Manuel, is it possible
> to investigate race condition issues in Xen3 dom0 kernel?
I'll try, but it's not easy.
Manuel Bouyer <firstname.lastname@example.org>
NetBSD: 26 ans d'experience feront toujours la difference