Red Hat Bugzilla – 1722789 – qemu prompt: qemu-kvm: vtd_iommu_translate: detected translation failure (dev=02:00:00, iova=0x0) when boot guest with IOMMU
Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Description of problem:
qemu prompt: qemu-kvm: vtd_iommu_translate: detected translation failure (dev=02:00:00, iova=0x0) when boot guest with IOMMU.
Detailed configure please see "Steps to Reproduce"
Version-Release number of selected component (if applicable):
host info: kernel-3.10.0-1056.el7.x86_64 & qemu-kvm-rhev-2.12.0-33.el7.x86_64
guest info: kernel-3.10.0-1056.el7.x86_64
How reproducible:
4/4
Steps to Reproduce:
1.boot guest with commands:
/usr/libexec/qemu-kvm -M q35,kernel-irqchip=split \
-device intel-iommu,intremap=on,caching-mode=on,device-iotlb=on \
-m 8G \
-smp 4,cores=2,threads=1,sockets=2 \
-cpu 'SandyBridge' \
-device pcie-root-port,id=pcie.0-root-port-2,slot=2,chassis=2,addr=0x2,bus=pcie.0 \
-device pcie-root-port,id=pcie.0-root-port-3,slot=3,chassis=3,addr=0x3,bus=pcie.0 \
-device pcie-root-port,id=pcie.0-root-port-4,slot=4,chassis=4,addr=0x4,bus=pcie.0 \
-device virtio-scsi-pci,id=virtio_scsi_pci0,iommu_platform=on,ats=on,bus=pcie.0-root-port-3,addr=0x0 \
-drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=qcow2,file=/mnt/nfs/rhel7-7-64-virtio-scsi.qcow2 \
-device scsi-hd,id=image1,drive=drive_image1 \
-device virtio-net-pci,mac=9a:f5:f6:f7:f8:f9,id=idLnLWR0,vectors=4,netdev=idINi0TE,bus=pcie.0-root-port-4,addr=0x0 \
-netdev tap,id=idINi0TE,vhost=on \
-vnc :0 \
-qmp tcp:0:4440,server,nowait \
-monitor stdio \
-device VGA \
-boot menu=on \
2.and before step1, guest kernel line has been added "intel_iommu=on"
3.after guest started, see hmp.
Actual results:
found hmp prompt:
(qemu) qemu-kvm: vtd_iommu_translate: detected translation failure (dev=02:00:00, iova=0x0)
qemu-kvm: New fault is not recorded due to compression of faults
qemu-kvm: virtio: zero sized buffers are not allowed
Expected results:
no warning prompt in hmp when boot guest with iommu
Additional info:
1.on rhel8.1.0 host, both slow train and fast train don't reproduce this issue;
2.on rhel8.0.1 host, don't hit this issue, too
(In reply to Peter Xu from comment #3)
> I think this is a dup of Bug 1686278, am I right?
I think is same issue, but that bz is for rhel8.1.0 upstream, this is for rhel7.7, thanks.