From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753615AbaF0MLC (ORCPT ); Fri, 27 Jun 2014 08:11:02 -0400 Received: from mail.skyhub.de ([78.46.96.112]:58848 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752845AbaF0MLA (ORCPT ); Fri, 27 Jun 2014 08:11:00 -0400 Date: Fri, 27 Jun 2014 14:10:53 +0200 From: Borislav Petkov To: Paolo Bonzini Cc: lkml , Peter Zijlstra , Steven Rostedt , x86-ml , kvm@vger.kernel.org, =?utf-8?B?SsO2cmcgUsO2ZGVs?= Subject: Re: __schedule #DF splat Message-ID: <20140627121053.GD23153@pd.tnic> References: <20140625153227.GA13845@pd.tnic> <20140625202650.GC13845@pd.tnic> <20140627101831.GB23153@pd.tnic> <53AD586A.40900@redhat.com> <20140627115545.GC23153@pd.tnic> <53AD5D27.2090505@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <53AD5D27.2090505@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 27, 2014 at 02:01:43PM +0200, Paolo Bonzini wrote: > Can you try gathering a trace? (and since those things get huge, you > can send it to me offlist) Also try without ept and see what happens. Yeah, Joerg just sent me a diff on how to intercept #DF. I'll add a tracepoint so that it all goes into the trace together. > Also, perhaps you can bisect between Linus's tree and tip? Yep, that's next if we don't get smart from the #DF trace. > And finally, what is the host kernel? 3.16-rc2+ - "+" is tip/master from the last weekend with a couple of patches to arch/x86/ from me which should be unrelated (yeah, we've heard that before :-)). Thanks for the suggestions, I'm going for a run now but after I get back, debugging session starts with host and guest rebuilt afresh. :-) Stay tuned. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --