From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54315) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X5Gnk-0007LC-El for qemu-devel@nongnu.org; Thu, 10 Jul 2014 12:02:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X5Gnc-0002oh-Ly for qemu-devel@nongnu.org; Thu, 10 Jul 2014 12:02:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:63380) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X5Gnc-0002oX-8e for qemu-devel@nongnu.org; Thu, 10 Jul 2014 12:02:20 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s6AG2JnD028530 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 10 Jul 2014 12:02:19 -0400 Message-ID: <53BEB907.7070207@redhat.com> Date: Thu, 10 Jul 2014 18:02:15 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <20140710151157.GM23577@redhat.com> <53BEAF80.1060308@redhat.com> <20140710155315.GO23577@redhat.com> In-Reply-To: <20140710155315.GO23577@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Help on possible hang in drive-mirror / query-block-jobs List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Daniel P. Berrange" Cc: Kevin Wolf , Fam Zheng , qemu-devel@nongnu.org, Stefan Hajnoczi Il 10/07/2014 17:53, Daniel P. Berrange ha scritto: >> > Can you install a custom QEMU? How many megabytes of stdout can your test >> > rig tolerate? Any chance you can collect other files (traces)? > I can possibly come up with some gross hack to wget a qemu binary from > an external host at the start of the test. Can generate 100MB of test > logs without it being an issue. > > What sort of info would be helpful to collect. I can't easily get > arbitrary files out of the test hosts, but if there's a way to get the > debug info into QEMU's stdout/stderr logs then we're collecting those > already. If you can compile a custom QEMU, then yes it's possible. Paolo