From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46022) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UjPoA-0001ac-IP for qemu-devel@nongnu.org; Mon, 03 Jun 2013 04:08:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UjPo8-0007iU-EA for qemu-devel@nongnu.org; Mon, 03 Jun 2013 04:08:02 -0400 Message-ID: <1370246855.3766.60.camel@pasglop> From: Benjamin Herrenschmidt Date: Mon, 03 Jun 2013 18:07:35 +1000 In-Reply-To: <51AC2D98.8000404@ozlabs.ru> References: <1367545092-19980-1-git-send-email-david@gibson.dropbear.id.au> <1367545092-19980-8-git-send-email-david@gibson.dropbear.id.au> <51875DA7.4090308@redhat.com> <51A301AC.8070101@ozlabs.ru> <51A30528.9020708@redhat.com> <51A83C18.2030102@ozlabs.ru> <1369994875.3928.137.camel@pasglop> <51A87AAA.6080306@ozlabs.ru> <51A87E5B.1030100@redhat.com> <51AC2D98.8000404@ozlabs.ru> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 7/8] pseries: savevm support for PAPR virtual SCSI List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexey Kardashevskiy Cc: quintela@redhat.com, agraf@suse.de, qemu-devel@nongnu.org, qemu-ppc@nongnu.org, Paolo Bonzini , David Gibson On Mon, 2013-06-03 at 15:46 +1000, Alexey Kardashevskiy wrote: > Ok. I implemented {save|load}_request for IBMVSCSI, started testing - > the > destination system behaves very unstable, sometime it is a fault in > _raw_spin_lock or it looks okay but any attempt to read the filesystem > leads to 100% cpu load in qemu process and no response from the guest. > > I tried virtio-scsi as well (as it was referred as a good example), it > fails in exactly the same way. So I started wondering - when did you > try it > last time? :) Did you try virtio-blk or even a ramdisk ? IE, Make sure the problem isn't some kind of generic migration issue unrelated to storage ? Cheers, Ben.