From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39439) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKu9X-0001Jb-63 for qemu-devel@nongnu.org; Fri, 22 Aug 2014 15:05:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XKu9Q-0008SE-B7 for qemu-devel@nongnu.org; Fri, 22 Aug 2014 15:05:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48064) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKu9P-0008Ro-PD for qemu-devel@nongnu.org; Fri, 22 Aug 2014 15:05:27 -0400 Date: Fri, 22 Aug 2014 16:05:07 -0300 From: Marcelo Tosatti Message-ID: <20140822190456.GA8963@amt.cnet> References: <53DFD158.3070203@redhat.com> <20140808213730.GA13545@amt.cnet> <688822096.25778377.1407566113211.JavaMail.zimbra@redhat.com> <53F62201.1050805@redhat.com> <20140822174531.GA7279@amt.cnet> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] latest rc: virtio-blk hangs forever after migration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Andrey Korolyov Cc: Amit Shah , Paolo Bonzini , Fam Zheng , Marcin =?utf-8?Q?Gibu=C5=82a?= , "qemu-devel@nongnu.org" On Fri, Aug 22, 2014 at 10:39:38PM +0400, Andrey Korolyov wrote: > On Fri, Aug 22, 2014 at 9:45 PM, Marcelo Tosatti wrote: > > On Fri, Aug 22, 2014 at 08:44:53PM +0400, Andrey Korolyov wrote: > >> > > >> > I`m running 3.10, so patches are not here, will try 3.16 soon. Even if > >> > problem will be fixed, it still will be specific for 2.1, earlier > >> > releases working well and I`ll bisect at a time. > >> > >> Thanks, using 3.16 helped indeed. Though the bug remains as is at 2.1 > >> on LTS 3.10, should I find the breaking commit, or it is better to > >> backport kvm subsystem changes related to apic to 3.10? > > > > Andrey, > > > > Can you try the patchset (which includes cpu_clean_all_dirty) please? > > It should be equivalent to your proposed patch. > > > > > > > Just checked case for Windows, bug is still here (twelve continuous > ping-pong migrations between two hosts). Also there is very weird > observation that the if VM stalled, password window renders in a > cripple way just after connection when no VNC region refreshes are > made yet by mouse, vm-is-alive case rendering after-c-a-d prompt > properly. Probably it`ll be easier to check behaviour against Paolo` > patchset for RH kernel, though I`m still in progress with cutting out > the rest to adapt them on top of bare 3.10, for ones with access to > git log it should be easier :) Argh i forgot cpu_sync_all_states. Will resend shortly.