From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751209AbVIBJ6s (ORCPT ); Fri, 2 Sep 2005 05:58:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751153AbVIBJ6p (ORCPT ); Fri, 2 Sep 2005 05:58:45 -0400 Received: from gromit.tds.de ([193.28.97.130]:36804 "EHLO gromit.tds.de") by vger.kernel.org with ESMTP id S1751106AbVIBJ6o (ORCPT ); Fri, 2 Sep 2005 05:58:44 -0400 Date: Fri, 2 Sep 2005 11:58:22 +0200 To: Hugh Dickins Cc: Dave Jones , Andrew Morton , Andi Kleen , Ian Pratt , Bongani Hlope , linux-kernel@vger.kernel.org Subject: Re: Bad page state on AMD Opteron Dual System with kernel 2.6.13-rc6-git13 Message-ID: <20050902095821.GA6489@security.tds.de> References: <20050826165342.GA11796@pbkg4> <43110363.7020808@gentoo.org> <20050829052454.GA8172@pbkg4> <20050829102830.GA7604@pbkg4> <20050829142318.GB7604@pbkg4> <20050830072759.GA4150@pbkg4> <20050830123529.GA4293@pbkg4> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050830123529.GA4293@pbkg4> User-Agent: Mutt/1.5.6i From: weiti@security.tds.de (Tim Weippert) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello all together, for now i can confirm, that the problem disappears! I have done the following: First try the msr fix, this doesn't solve the problem entirely, but there were no kernel panics. With the randomize_va_space setting the general protection disappeared too ... I'm now happy and will go for holiday ( 4 weeks *g*). After that i will look if the machine gets some problems back, but i don't think ... I thank you all for your help! On Tue, Aug 30, 2005 at 02:35:29PM +0200, Tim Weippert wrote: > On Tue, Aug 30, 2005 at 10:51:18AM +0100, Hugh Dickins wrote: > > It's conceivable (though not very likely) that here you have the error > > reported on exit from a long-running "sh", running since before you made > > the MSR fix (the error I'm thinking of occurs when originally exec'ed, > > but may pass unnoticed while running). > > Yes, this can possible, that the sh run before the changes were made. > but. The later problem suggest me that this not entirely fix the > problem. > > > Bongani Hlope suggest me to try this: > > > > > > echo 0 > /proc/sys/kernel/randomize_va_space and look for > > > http://bugzilla.kernel.org/show_bug.cgi?id=4851 > > > > Please do try that. And if no luck with that, next time it's convenient > > for you to reboot, please write the MSR as early as you can to see if > > that makes any difference (probably not, but there's a chance). -- Every time I think I know where it's at, they move it. Tim Weippert http://www.topf-sicret.org/