From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36678) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVeeH-0006Q3-9t for qemu-devel@nongnu.org; Thu, 03 Apr 2014 06:13:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WVee9-0005xa-Fg for qemu-devel@nongnu.org; Thu, 03 Apr 2014 06:13:29 -0400 Received: from mail-bk0-f41.google.com ([209.85.214.41]:48177) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVee9-0005xM-93 for qemu-devel@nongnu.org; Thu, 03 Apr 2014 06:13:21 -0400 Received: by mail-bk0-f41.google.com with SMTP id d7so149733bkh.28 for ; Thu, 03 Apr 2014 03:13:20 -0700 (PDT) Message-ID: <533D3447.3010405@m2r.biz> Date: Thu, 03 Apr 2014 12:13:27 +0200 From: Fabio Fantoni MIME-Version: 1.0 References: <533AD4BE.8080101@m2r.biz> <533AE841.1000606@redhat.com> <533BF0DB.70100@m2r.biz> <20140402160324.GD4563@perard.uk.xensource.com> <533D18A7.3040100@m2r.biz> <1396514746.4211.26.camel@kazak.uk.xensource.com> In-Reply-To: <1396514746.4211.26.camel@kazak.uk.xensource.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Xen-devel] Qemu 2.0 regression with xen: qemu crash on any domUs S.O. start List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Ian Campbell Cc: Anthony PERARD , xen-devel , Laszlo Ersek , "qemu-devel@nongnu.org" Il 03/04/2014 10:45, Ian Campbell ha scritto: > On Thu, 2014-04-03 at 10:15 +0200, Fabio Fantoni wrote: >> Seems that do segfault when I connect to vnc or spice, in the test of >> this backtrace after connect to vnc, spice and other things of my >> patches are disabled, so do not think it is a problem caused by my patches. > The last spice patch of yours I saw was incorrectly accessing the wrong > half of various unions which is liable to cause all sorts of corruption > or strange behaviour. Please can you reproduce this issue without any > patches applied. > > Ian. > After saw the full backtrace I saw on qemu git recent patches with fix on input, than I tried to update qemu to latest commit (82c6f513735297ad76acaaf2e87f0c5a0b3647a7) and now the segfault seems solve, I did some fast test with vnc and spice on same pv domUs without qemu crashes. About libxl patch of spice support for pv domUs I'll improve it following your reply and also try to find more details about pointer not visible but working with spice on pv domUs. Thanks to all for your help. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Fantoni Subject: Re: [Xen-devel] Qemu 2.0 regression with xen: qemu crash on any domUs S.O. start Date: Thu, 03 Apr 2014 12:13:27 +0200 Message-ID: <533D3447.3010405@m2r.biz> References: <533AD4BE.8080101@m2r.biz> <533AE841.1000606@redhat.com> <533BF0DB.70100@m2r.biz> <20140402160324.GD4563@perard.uk.xensource.com> <533D18A7.3040100@m2r.biz> <1396514746.4211.26.camel@kazak.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1396514746.4211.26.camel@kazak.uk.xensource.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org To: Ian Campbell Cc: Anthony PERARD , xen-devel , Laszlo Ersek , "qemu-devel@nongnu.org" List-Id: xen-devel@lists.xenproject.org Il 03/04/2014 10:45, Ian Campbell ha scritto: > On Thu, 2014-04-03 at 10:15 +0200, Fabio Fantoni wrote: >> Seems that do segfault when I connect to vnc or spice, in the test of >> this backtrace after connect to vnc, spice and other things of my >> patches are disabled, so do not think it is a problem caused by my patches. > The last spice patch of yours I saw was incorrectly accessing the wrong > half of various unions which is liable to cause all sorts of corruption > or strange behaviour. Please can you reproduce this issue without any > patches applied. > > Ian. > After saw the full backtrace I saw on qemu git recent patches with fix on input, than I tried to update qemu to latest commit (82c6f513735297ad76acaaf2e87f0c5a0b3647a7) and now the segfault seems solve, I did some fast test with vnc and spice on same pv domUs without qemu crashes. About libxl patch of spice support for pv domUs I'll improve it following your reply and also try to find more details about pointer not visible but working with spice on pv domUs. Thanks to all for your help.