From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:48756) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S9bXG-00069j-IR for qemu-devel@nongnu.org; Mon, 19 Mar 2012 08:18:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S9bWr-0007d9-LB for qemu-devel@nongnu.org; Mon, 19 Mar 2012 08:18:02 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12064) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S9bWr-0007d0-D9 for qemu-devel@nongnu.org; Mon, 19 Mar 2012 08:17:37 -0400 From: Vadim Rozenfeld Date: Mon, 19 Mar 2012 14:07:40 +0200 References: <201203191342.21859.vrozenfe@redhat.com> <20120319115603.GF24958@teriyaki.redhat.com> In-Reply-To: <20120319115603.GF24958@teriyaki.redhat.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201203191407.40887.vrozenfe@redhat.com> Subject: Re: [Qemu-devel] [Spice-devel] Vioserial of Windows guest OS on Qemu 0.15 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Christophe Fergeau Cc: Paul =?utf-8?q?Lu-=E7=9B=A7=E5=81=89=E6=99=BA-=E7=A0=94=E7=A9=B6=E7=99=BC?= =?utf-8?q?=E5=B1=95=E9=83=A8?= , qemu-devel , Michael Roth , =?utf-8?q?Charles=2ETsai-=E8=94=A1=E6=B8=85=E6=B5=B7-=E7=A0=94=E7=A9=B6?= =?utf-8?q?=E7=99=BC=E5=B1=95=E9=83=A8?= , spice-devel@lists.freedesktop.org, Alex =?utf-8?q?Huang-=E9=BB=83=E5=BF=85=E8=B3=A2-=E7=A0=94?= =?utf-8?q?=E7=A9=B6=E7=99=BC=E5=B1=95=E9=83=A8?= On Monday, March 19, 2012 01:56:03 PM Christophe Fergeau wrote: > On Mon, Mar 19, 2012 at 01:42:21PM +0200, Vadim Rozenfeld wrote: > > On Monday, March 19, 2012 12:12:59 PM Christophe Fergeau wrote: > > > Hey, > > >=20 > > > On Mon, Mar 19, 2012 at 02:29:41PM +0800, Charles.Tsai-=E8=94=A1=E6= =B8=85=E6=B5=B7-=E7=A0=94=E7=A9=B6=E7=99=BC=E5=B1=95=E9=83=A8 wrote: > > > > 3. When we disable and enable the new VirtIO driver several times > > > > on either Qemu 1.0 or Qemu 1.0.50, VirtIo driver failed to work > > > > after enabling the new VirtIO driver. > > >=20 > > > For what it's worth, Alon Levy also hit this particular bug a few > > > months ago, and I successfully reproduced at that time. I think I > > > reported it to Vadim back in the days, but I'm not 100% sure :) > > >=20 > > > Christophe > >=20 > > Thanks Christophe. > > In your case (https://bugzilla.redhat.com/show_bug.cgi?id=3D750773) > > an UP system hangs on shutdown. >=20 > In my case, the hang was during boot even though it magically went away > sometimes in the last month >=20 > > I'm not sure whether Charles is hitting the same problem. >=20 > While trying to figure out what was going on with the bug above, I've > definitely hit a "enabling/disabling vioserial in the device manager 3 > times causes the VM to freeze" bug. > For what it's worth, lately I've also been experiencing VM freezes when > installing vioserial in winxp or win7 UP VMs OK. It looks like the same race condition, which I'm going to fix.=20 >=20 > Christophe