blob: 905f8564d985a0e3bfb63a29d3a4659b73f68e6f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
graphic: 0.892
boot: 0.868
device: 0.839
instruction: 0.833
semantic: 0.743
socket: 0.706
vnc: 0.658
mistranslation: 0.373
network: 0.309
other: 0.284
assembly: 0.269
KVM: 0.193
qemu-system-x86_64 cannot run on Windows when -smp is specified with a value higher than `1`. An important argument for any expectation of VM performance
Description of problem:
qemu-system-x86_64 seems to crash on Windows the moment you try to use -smp to define more vcpus, even the basic usage of `-smp 4` will cause qemu to segfault after the guest's boot option is selected.
Steps to reproduce:
1. `qemu-system-x86_64 -smp 4 -cdrom rhel-9.2-x86_64-dvd.iso -drive if=pflash,format=raw,unit=0,readonly=on,file=edk2-x64/OVMF_CODE.fd -m 6G -nodefaults -serial mon:stdio`
2. Select the boot option to begin your installation
3. qemu hangs for 10 or so seconds then throws a Segmentation Fault.
Additional information:
1. This does not happen if -smp arguments are omitted, but running VMs with a single vcpu thread is slow and painful.
2. This still happens even without OVMF (Traditional bios booting)
3. This still happens even without -defaults and without a serial device
Only output from qemu at death is `Segmentation fault`
|