From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36079) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xmxpj-0005Qc-Jr for qemu-devel@nongnu.org; Fri, 07 Nov 2014 23:41:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xmxpd-0000HN-FB for qemu-devel@nongnu.org; Fri, 07 Nov 2014 23:41:07 -0500 Received: from isrv.corpit.ru ([86.62.121.231]:46538) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xmxpd-0000HJ-8M for qemu-devel@nongnu.org; Fri, 07 Nov 2014 23:41:01 -0500 Message-ID: <545D9EDB.5010901@msgid.tls.msk.ru> Date: Sat, 08 Nov 2014 07:40:59 +0300 From: Michael Tokarev MIME-Version: 1.0 References: <000001498d03e356-ad9138e5-43c7-491b-aeb0-56e5b60c06de-000000@email.amazonses.com> <545D9CF2.7070207@msgid.tls.msk.ru> In-Reply-To: <545D9CF2.7070207@msgid.tls.msk.ru> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Bug#768517: qemu-system-x86: virtio-scsi unreliable - crashes and write failures Reply-To: Michael Tokarev , 768517@bugs.debian.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Ray Kohler , 768517@bugs.debian.org Cc: qemu-devel [I forgot to add one comment] 08.11.2014 07:32, Michael Tokarev wrote: > Control: tag -1 + moreinfo confirmed > > [Adding qemu-devel@] > > 08.11.2014 04:28, Ray Kohler wrote: >> >> virtio-scsi is quite unreliable compared to the version in wheezy. I see >> many crashes, with this output: >> >> qemu-system-x86_64: wrong size for virtio-scsi headers So you're saying this is a regression compared with version 1.1.2. But the thing is -- did virtio-scsi _ever_ worked in 1.1? I don't think it was. At least I can't perform the same OpenBSD install in 1.1 verison at all -- the installer can't write anything to virtio-scsi, it fails for me right when writing a partition table, with "Invalid argument/Illegal Request" SCSI error code. So it looks like this is not a regression, quite the opposite... Unless, ofcourse, I'm doing something incorrectly. qemu-system-x86_64 -enable-kvm -m 1G \ -device virtio-scsi-pci,id=scsi \ -drive file=foo.img,if=none,cache=unsafe,id=d \ -device scsi-hd,drive=d \ -vga std -cpu host -cdrom cd56.iso -monitor stdio (for both 2.1 and 1.1.) Thanks, /mjt