Qemu is stuck on the startup intermittently.
Host environment
- Operating system: ( CENTOS 7)
- OS/kernel version: (Linux 3.10.0-1160.25.1.F5.1.el7_8.x86_64 #1 SMP Thu Jul 8 01:59:57 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux)
- Architecture: (x86)
- QEMU flavor: (qemu-system-x86_64)
- QEMU version: (QEMU emulator version 5.1.0 (qemu-5.1.0-9.fc32) )
- QEMU cmd options: -machine pc-q35-3.1,accel=kvm,usb=off,dump-guest-core=off -cpu Cooperlake,ss=on,hypervisor=on,tsc-adjust=on,avx512ifma=on,sha-ni=on,avx512vbmi=on,umip=on,avx512vbmi2=on,gfni=on,vaes=on,vpclmulqdq=on,avx512bitalg=on,avx512-vpopcntdq=on,md-clear=on,ibpb=on,amd-stibp=on,amd-ssbd=on,avx512-bf16=off,taa-no=off -boot strict=on
Emulated/Virtualized environment
- Operating system: (Fedora 32 )
- OS/kernel version: (Linux virttest1 3.10.0-1160.25.1.F5.1.el7_8.x86_64 #1 SMP Thu Jul 8 01:59:57 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux)
- Architecture: (x86)
Description of problem
Qemu is stuck on the startup intermittently.
We are using kubevirt to launch the VM in kubernetes env. We have compiled qemu with a few flags enabled and using it. All things are working as expected except we are seeing qemu stuck issue during VM startup. Please find logs from system in additional information
Qemu version: qemu-system-x86-core-5.1.0-9.fc32.x86_64.rpm Libvirtd version: 6.6.0
Steps to reproduce
- Create and start a VM.
Additional information
TOP OUTPUT:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
**125 qemu 0 -20 8519896 73392 15412 R 99.9 0.1 85:27.96 CPU 0/KVM **
113 qemu 20 0 8519896 73392 15412 S 0.0 0.1 0:00.14 qemu-system-ori
121 qemu 20 0 8519896 73392 15412 S 0.0 0.1 0:00.00 qemu-system-ori
122 qemu 20 0 8519896 73392 15412 S 0.0 0.1 0:00.00 IO iothread1
124 qemu 20 0 8519896 73392 15412 S 0.0 0.1 0:00.23 IO mon_iothread
126 qemu 0 -20 8519896 73392 15412 S 0.0 0.1 0:00.00 CPU 1/KVM
128 qemu 20 0 8519896 73392 15412 S 0.0 0.1 0:00.00 vnc_worker qemu logs on error:
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)
KVM: injection failed, MSI lost (Operation not permitted)dmesg logs from host:-
[ 7853.643187] kvm: apic: phys broadcast and lowest prio
[ 7853.643265] kvm: apic: phys broadcast and lowest prio
[ 7853.643341] kvm: apic: phys broadcast and lowest prio
[ 7853.643413] kvm: apic: phys broadcast and lowest prio
[ 7853.643486] kvm: apic: phys broadcast and lowest prio
[ 7853.643559] kvm: apic: phys broadcast and lowest prio
[ 7853.643631] kvm: apic: phys broadcast and lowest prio
[ 7853.643703] kvm: apic: phys broadcast and lowest prio
[ 7853.643776] kvm: apic: phys broadcast and lowest prio
[ 7853.643848] kvm: apic: phys broadcast and lowest prio
[ 7853.643920] kvm: apic: phys broadcast and lowest prio
[ 7853.643992] kvm: apic: phys broadcast and lowest prio
[ 7853.644065] kvm: apic: phys broadcast and lowest prio
[ 7853.644137] kvm: apic: phys broadcast and lowest prio
[ 7853.644209] kvm: apic: phys broadcast and lowest prio
[ 7853.644289] kvm: apic: phys broadcast and lowest prio-->
Edited by Alex Bennée