From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alec Joseph Rivera Subject: Re: 2.6.16 Guest Hangs on Boot Date: Thu, 16 Sep 2010 19:11:17 +0800 Message-ID: <1284635477.7482.223.camel@nami.8liens.com> References: <1284569606.7482.118.camel@nami.8liens.com> <3C88BDE6-33EF-4056-89DE-8CC9084D407C@suse.de> <1284572907.7482.125.camel@nami.8liens.com> <1D3EBE1C-855B-4481-B352-E86EE730A0ED@suse.de> <1284574022.7482.137.camel@nami.8liens.com> <1284602138.7482.157.camel@nami.8liens.com> <4C91F111.9010508@suse.de> <20100916110247.GA15338@8bytes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Alexander Graf , kvm@vger.kernel.org, Meric Mara , Renan Mara To: Joerg Roedel Return-path: Received: from mail-gy0-f174.google.com ([209.85.160.174]:46024 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752827Ab0IPLL1 (ORCPT ); Thu, 16 Sep 2010 07:11:27 -0400 Received: by gyd8 with SMTP id 8so339988gyd.19 for ; Thu, 16 Sep 2010 04:11:26 -0700 (PDT) In-Reply-To: <20100916110247.GA15338@8bytes.org> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, 2010-09-16 at 13:02 +0200, Joerg Roedel wrote: > On Thu, Sep 16, 2010 at 12:27:29PM +0200, Alexander Graf wrote: > > Alec Joseph Rivera wrote: > > > Program received signal SIGINT, Interrupt. > > > 0xc015405f in ?? () > > > (gdb) bt > > > #0 0xc015405f in ?? () > > > > > > > 0xc015405a <__pte_alloc_kernel+82>: mov (%edi),%eax > > 0xc015405c <__pte_alloc_kernel+84>: mov 0x4(%edi),%edx > > 0xc015405f <__pte_alloc_kernel+87>: lock cmpxchg8b (%edi) > > 0xc0154063 <__pte_alloc_kernel+91>: jne 0xc015405a > > <__pte_alloc_kernel+82> > > This looks like a bug I also have seen recently on 32 bit host-kvm. The > instruction emulation for 'lock cmpxchg8b' was broken so that the rip > was not advanced and the guest just iterated over this instruction again > and again. I thought this was fixed with the latest kvm updates in > 2.6.36. > Will wait for a 2.6.36 kernel then or compile a .36-rc myself on free time :-) Thanks, will update the list when either comes. > Joerg > -- --- Follow me: http://twitter.com/agirivera Invite as a friend: http://www.facebook.com/agirivera