August 20, 20178 yr Logs Show this new message not appearing in previous versions 6.3.5, 6.2.4 kernel: kvm: unknown parameter 'allow_unsafe_assigned_interrupts' ignored Which produces an expected IOMMU error internal error: qemu unexpectedly closed the monitor: 2017-08-20T13:08:47.099715Z qemu-system-x86_64: -chardev pty,id=charserial0: char device redirected to /dev/pts/0 (label charserial0) 2017-08-20T13:08:47.323969Z qemu-system-x86_64: -device vfio-pci,host=0b:00.0,id=hostdev0,bus=pci.0,addr=0x5: vfio error: 0000:0b:00.0: failed to setup container for group 19: failed to set iommu for container: Operation not permitted This is vitally important for allowing passthrough on many machines. Vm's work normally without passthrough otherwise. Diagnostics attached brahms2-diagnostics-20170820-0612.zip
December 2, 20178 yr I am having the same problem with the 6.4.0_rc14. Having to revert back to 6.3.5, but have Ryzen and experiencing bug with Windows VM losing CPUs.
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