Hello, I wanted to know where i can file a bug about "KVM internal error. Suberror: 1" Is it on Qemu side, Kernel side or Kvm one ? More details : I having problems getting VM to run with QEMU 4.0 and 4 NVME in PCI passthrough When I create a VM, it quickly goes into a paused state and never seems to start working. Log shows emulation failure : KVM internal error. Suberror: 1 emulation failure EAX=00000086 EBX=000041d8 ECX=00000001 EDX=00008e68 ESI=00000f01 EDI=00000000 EBP=0000004f ESP=00008e4e EIP=00000000 EFL=00210093 [--S-A-C] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =9000 00090000 0000ffff 00009300 CS =bffc 000bffc0 0000ffff 00009f00 SS =9000 00090000 0000ffff 00009300 DS =9000 00090000 0000ffff 00009300 FS =9000 00090000 0000ffff 00009300 GS =9000 00090000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00008160 00000028 IDT= 00000000 000003ff CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=<20> 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 I try to trace the error and got to this: <...>-62567 [030] 2758596.349023: kvm_entry: vcpu 0 <...>-62588 [031] 2758596.349024: kvm_fpu: unload <...>-62588 [031] 2758596.349025: kvm_userspace_exit: reason KVM_EXIT_UNKNOWN (0) <...>-62591 [010] 2758596.349032: kvm_fpu: load <...>-62591 [010] 2758596.349034: kvm_fpu: unload <...>-62567 [030] 2758596.349036: kvm_exit: reason EPT_VIOLATION rip 0xfff0 info 784 0 <...>-62591 [010] 2758596.349036: kvm_userspace_exit: reason KVM_EXIT_UNKNOWN (0) <...>-62567 [030] 2758596.349038: kvm_page_fault: address fffffff0 error_code 784 <...>-62585 [034] 2758596.349040: kvm_fpu: load Qemu version : 4.0 Kernel Version: 4.18.0-25 OS : Ubuntu 16.04 Qemu command : LC_ALL=C \ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin \ HOME=/var/lib/libvirt/qemu/domain-8-instance-00210982 \ XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-8-instance-00210982/.local/share \ XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-8-instance-00210982/.cache \ XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-8-instance-00210982/.config \ QEMU_AUDIO_DRV=none \ /usr/bin/qemu-system-x86_64 \ -name guest=instance-00210982,debug-threads=on \ -S \ -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-8-instance-00210982/master-key.aes \ -machine pc-i440fx-bionic,accel=kvm,usb=off,dump-guest-core=off \ -cpu Haswell-noTSX,md-clear=on,vmx=on \ -m 180000 \ -overcommit mem-lock=off \ -smp 32,sockets=32,cores=1,threads=1 \ -uuid 77046f18-e107-48e7-939c-57eba163c478 \ -smbios 'type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=14.1.1,serial=5b429103-2856-154f-1caf-5ffb5694cdc3,uuid=77046f18-e107-48e7-939c-57eba163c478,family=Virtual Machine' \ -no-user-config \ -nodefaults \ -chardev socket,id=charmonitor,fd=27,server,nowait \ -mon chardev=charmonitor,id=monitor,mode=control \ -rtc base=utc,driftfix=slew \ -global kvm-pit.lost_tick_policy=delay \ -no-hpet \ -no-shutdown \ -boot strict=on \ -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \ -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 \ -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 \ -drive file=/home/instances/77046f18-e107-48e7-939c-57eba163c478/disk,format=raw,if=none,id=drive-scsi0-0-0-0,cache=none,discard=unmap,aio=native,throttling.iops-total=2000 \ -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1,write-cache=on \ -netdev tap,fd=29,id=hostnet0,vhost=on,vhostfd=30 \ -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:55:8e:0d,bus=pci.0,addr=0x3 \ -add-fd set=3,fd=32 \ -chardev file,id=charserial0,path=/dev/fdset/3,append=on \ -device isa-serial,chardev=charserial0,id=serial0 \ -chardev pty,id=charserial1 \ -device isa-serial,chardev=charserial1,id=serial1 \ -chardev socket,id=charchannel0,fd=31,server,nowait \ -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \ -device usb-tablet,id=input0,bus=usb.0,port=1 \ -vnc 10.224.136.153:0 \ -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ -device vfio-pci,host=1a:00.0,id=hostdev0,bus=pci.0,addr=0x6 \ -device vfio-pci,host=18:00.0,id=hostdev1,bus=pci.0,addr=0x7 \ -device vfio-pci,host=da:00.0,id=hostdev2,bus=pci.0,addr=0x8 \ -device vfio-pci,host=d8:00.0,id=hostdev3,bus=pci.0,addr=0x9 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xa \ -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \ -msg timestamp=on char device redirected to /dev/pts/0 (label charserial1) Quentin
