From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: 2.6.38.1 general protection fault Date: Mon, 28 Mar 2011 11:19:51 +0200 Message-ID: <4D9052B7.2070508@redhat.com> References: <4D8C6110.6090204@wpkg.org> <4D8DAE94.7070604@redhat.com> <4D8DC307.7090400@wpkg.org> <4D8F068B.5030209@redhat.com> <4D902997.80004@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , Andrea Arcangeli , Marcelo Tosatti To: Tomasz Chmielewski Return-path: Received: from mx1.redhat.com ([209.132.183.28]:53257 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751111Ab1C1JTz (ORCPT ); Mon, 28 Mar 2011 05:19:55 -0400 In-Reply-To: <4D902997.80004@wpkg.org> Sender: kvm-owner@vger.kernel.org List-ID: On 03/28/2011 08:24 AM, Tomasz Chmielewski wrote: > On 27.03.2011 11:42, Avi Kivity wrote: > > (...) > >> Okay, the fork came from the ,script=. >> >> The issue with %rsi looks like a use-after-free, however >> kvm_mmu_notifier_invalidate_range_start appears to be properly srcu >> protected. > > FYI, I saw this one as well: > > http://www.virtall.com/files/temp/kvm.txt Similar pattern - top 16 bits of %rsi are flipped. Marcelo, what was the option to enable padding for allocations and overrun detection? Also use-after-free? -- error compiling committee.c: too many arguments to function