From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57885) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fIwdL-0004eN-DG for qemu-devel@nongnu.org; Wed, 16 May 2018 09:38:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fIwdI-0004DM-Al for qemu-devel@nongnu.org; Wed, 16 May 2018 09:38:23 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:53566 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fIwdI-0004Co-5c for qemu-devel@nongnu.org; Wed, 16 May 2018 09:38:20 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7315E814FDCF for ; Wed, 16 May 2018 13:38:19 +0000 (UTC) References: <20180417140802.16711-1-pbonzini@redhat.com> <0a51d026-8b9f-9925-1229-10e3766907bb@redhat.com> <02617670-8b06-e5b9-d763-65453b5f706a@redhat.com> From: Auger Eric Message-ID: <222e8530-6bd1-086a-cecf-1a755a38ce99@redhat.com> Date: Wed, 16 May 2018 15:38:18 +0200 MIME-Version: 1.0 In-Reply-To: <02617670-8b06-e5b9-d763-65453b5f706a@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/4] exec: reintroduce MemoryRegion caching List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , qemu-devel@nongnu.org Hi Paolo On 05/16/2018 12:42 PM, Paolo Bonzini wrote: > On 16/05/2018 12:41, Auger Eric wrote: >> This patch seems to cause a regression with ARM vsmmu + >> virtio-blk-pci. Reverting it looks to fix the issue. Otherwise I >> get: > > What's the command line for a reproducer? > > Thanks, > > Paolo > here is my command line: TCG: sudo /home/augere/UPSTREAM/qemu/aarch64-softmmu/qemu-system-aarch64 -M virt-2.12,gic-version=3,iommu=smmuv3 \ -cpu cortex-a57 -smp 8 -m 4096 -display none -machine accel=tcg \ -serial tcp:localhost:4444,server -trace events=/home/augere/TEST/QEMU/hw-arm-smmu \ -qmp unix:/home/augere/TEST/QEMU/qmp-sock,server,nowait \ -device virtio-blk-pci,bus=pcie.0,scsi=off,drive=drv0,id=drv0,bootindex=1,iommu_platform,disable-modern=off,disable-legacy=on,werror=stop,rerror=stop \ -drive file=/home/augere/VM/IMAGES/vm0.qcow2,format=qcow2,if=none,id=drv0 \ -device virtio-net-pci,bus=pcie.0,netdev=nic0,mac=6a:f5:10:b1:3d:d2,iommu_platform,disable-modern=off,disable-legacy=on \ -netdev tap,id=nic0,script=/home/augere/TEST/SCRIPTS/qemu-ifup,downscript=/home/augere/TEST/SCRIPTS/qemu-ifdown \ -net none or with acceleration: sudo /home/augere/UPSTREAM/qemu/aarch64-softmmu/qemu-system-aarch64 -M virt-2.12,gic-version=3,iommu=smmuv3 -cpu host -smp 8 -m 4096 -display none --enable-kvm ../.. I reproduce with both, 100% of the cases. Trying to reproduce with intel iommu as well. Thanks Eric