From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56047) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UcXDD-0002EI-8k for qemu-devel@nongnu.org; Wed, 15 May 2013 04:37:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UcXDB-00015I-Vp for qemu-devel@nongnu.org; Wed, 15 May 2013 04:37:27 -0400 Received: from mail-ye0-f174.google.com ([209.85.213.174]:39467) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UcXDB-00015E-R9 for qemu-devel@nongnu.org; Wed, 15 May 2013 04:37:25 -0400 Received: by mail-ye0-f174.google.com with SMTP id r13so304630yen.19 for ; Wed, 15 May 2013 01:37:25 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <5193493C.4010805@redhat.com> Date: Wed, 15 May 2013 10:37:16 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <20130514000224.654.59977.malonedeb@wampee.canonical.com> <20130514075109.GB3632@stefanha-thinkpad.redhat.com> <519215F6.7090800@redhat.com> <519224A4.4000800@redhat.com> <5192261A.6030306@redhat.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Bug 1179731] [NEW] is networking broken on windows hosts? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: TeLeMan Cc: Stefan Hajnoczi , qemu-devel , Fabien Chouteau , Bug 1179731 <1179731@bugs.launchpad.net> Il 15/05/2013 03:38, TeLeMan ha scritto: > On Tue, May 14, 2013 at 7:55 PM, Paolo Bonzini wrote: >> Il 14/05/2013 13:48, Paolo Bonzini ha scritto: >>> Il 14/05/2013 13:39, TeLeMan ha scritto: >>>> On Tue, May 14, 2013 at 6:46 PM, Paolo Bonzini wrote: >>>>> Il 14/05/2013 12:24, TeLeMan ha scritto: >>>>>> On Tue, May 14, 2013 at 3:51 PM, Stefan Hajnoczi wrote: >>>>>>> On Tue, May 14, 2013 at 12:02:24AM -0000, therock247uk wrote: >>>>>>>> just wondering as i just compiled the latest git and qemu goes into none >>>>>>>> responding mode when i try to do any networking stuff on guests (both >>>>>>>> linux and windows) >>>>>>> >>>>>>> Works for me on qemu.git/master on Linux: >>>>>>> >>>>>>> $ git rev-parse HEAD >>>>>>> b087143b4d010451208264b7c841436aafe1cbb1 >>>>>>> $ x86_64-softmmu/qemu-system-x86_64 -m 1024 -enable-kvm -cpu host \ >>>>>>> -drive if=virtio,cache=none,file=test.img >>>>>>> >>>>>>> Please include more information, like the QEMU command-line and commit >>>>>>> ID. >>>>>>> >>>>>>> Stefan >>>>>>> >>>>>> >>>>>> This regression occurs on the Windows host. SLIRP hangs in sorecvfrom(). >>>>> >>>>> Can you bisect it? >>>>> >>>>> Paolo >>>>> >>>> The first break is the commit >>>> 5e3bc735d93dd23f074b5116fd11e1ad8cd4962f. But it need more packets >>>> than HEAD to reproduce this regression. >>> >>> Please check if this partial revert of that commit fixes it: >> >> Yeah, this should work... WSAEventSelect is edge-triggered and the >> event will not be signaled if the socket handler does not consume all >> the data in the socket buffer. > > Unfortunately, it does not work. Ok... as you can see the patch is just moving a block of code just before g_main_context_prepare(context, &max_priority). Can you please try doing the same on top of these six commits: 134a03e0b3d34b01b68107104c525c3bff1211d4 cbff4b342b000a7642125dbdabf61113e05eee44 48ce11ff972c733afaed3e2a2613a2e56081ec92 8917c3bdba37d6fe4393db0fad3fabbde9530d6b a3e4b4a8091cc4fcf7cb619570c72c54c2d6a6e9 9cbaacf999b01b27dc3a22502705178057af66de Paolo