From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pekka Enberg Subject: Re: [PATCH 3/3] kvm tools: Make virtio-blk kvm__irq_line thread safe Date: Fri, 29 Apr 2011 10:55:31 +0300 Message-ID: References: <1304058985-13833-1-git-send-email-asias.hejun@gmail.com> <1304058985-13833-3-git-send-email-asias.hejun@gmail.com> <20110429064433.GB13893@elte.hu> <4DBA681C.4090707@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: Ingo Molnar , Cyrill Gorcunov , Sasha Levin , Prasad Joshi , kvm@vger.kernel.org To: Asias He Return-path: Received: from mail-vx0-f174.google.com ([209.85.220.174]:59685 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754537Ab1D2Hzd (ORCPT ); Fri, 29 Apr 2011 03:55:33 -0400 Received: by vxi39 with SMTP id 39so2575454vxi.19 for ; Fri, 29 Apr 2011 00:55:32 -0700 (PDT) In-Reply-To: <4DBA681C.4090707@gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: On Fri, Apr 29, 2011 at 10:26 AM, Asias He wrote: >> Yes, looks strange. Asias, did you see some bad behavior that this >> fixes? > > Yes. I see random virtio net hangs with scp test. This commit > 847838c573f4c04be7547f508a99be2dfdefb4fd triggers this problem as we are > using separte irq lines for each virtio devices instead of sharing one > irq line for all virtio devices. That's interesting. So reverting that commit makes the hangs go away?