From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965025AbbJ1IkE (ORCPT ); Wed, 28 Oct 2015 04:40:04 -0400 Received: from e06smtp10.uk.ibm.com ([195.75.94.106]:49171 "EHLO e06smtp10.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754770AbbJ1IkA (ORCPT ); Wed, 28 Oct 2015 04:40:00 -0400 X-IBM-Helo: d06dlp03.portsmouth.uk.ibm.com X-IBM-MailFrom: borntraeger@de.ibm.com X-IBM-RcptTo: kvm@vger.kernel.org;linux-kernel@vger.kernel.org;linux-s390@vger.kernel.org Subject: Re: [PATCH v2 2/3] virtio_ring: Support DMA APIs To: David Woodhouse , Andy Lutomirski , linux-kernel@vger.kernel.org References: <563062B0.5070608@de.ibm.com> <1446012277.3405.179.camel@infradead.org> Cc: Joerg Roedel , Cornelia Huck , Sebastian Ott , Paolo Bonzini , Christoph Hellwig , benh@kernel.crashing.org, KVM , Martin Schwidefsky , linux-s390 From: Christian Borntraeger Message-ID: <563089CF.10001@de.ibm.com> Date: Wed, 28 Oct 2015 17:39:43 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1446012277.3405.179.camel@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15102808-0041-0000-0000-00000623A1E2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 28.10.2015 um 15:04 schrieb David Woodhouse: > On Wed, 2015-10-28 at 14:52 +0900, Christian Borntraeger wrote: >> 000000000059b25a: e32010200004 lg %r2,32(%r1) >> #000000000059b260: e310b0a00004 lg %r1,160(%r11) >> >000000000059b266: 4810100c lh %r1,12(%r1) > > Precisely what is that? Is that loading ->archdata.dev_ops (offset 160) > from a device and then trying to find the ->unmap_page method therein? > qemu 2.4 works, and current qemu master has a broken gdb server....I am going to fix this first. What I can tell, that the problem goes away if I disable virtio 1.0 so I assume that things are fine when Andy sends a v4 with the endianess fixes. Christian