Re: [Qemu-devel] [PATCH 0/4] exec: reintroduce MemoryRegion caching

[Auger Eric]

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