QEMU .qcow2 mmu_gva_to_gpa 在 Mac OS X 中崩溃

Question

I am trying to run my .qcow2 image in Mac OS X with qemu-system-x86_64 , it works perfectly fine on my Debian machine but for memory problems I need to move it to a Mac OS X Catalina machine. I installed qemu-system-x86_64 through brew and then when I launch my machine with

qemu-system-x86_64 \
>   -m 8G \
>   -vga virtio \
>   -show-cursor \
>   -usb \
>   -device usb-tablet \
>   -enable-kvm \
>   -drive file=/Volumes/enricoWD/transfer_home_laptop/dxcator_home_backup_feb2020/diag-stage.qcow2,if=virtio \
>   -accel hvf \
>   -cpu host

it starts but after 4 seconds crashes with:

vmx_write_mem: mmu_gva_to_gpa ffff9ac27b23fcdc failed

Abort trap: 6

I saw other users encountered this problem here, but no answer provided.

If anybody has a clue, or suggestion for other ways to run my .qcow2 machine on Mac OS X it would be great! Thanks a lot in advance!

Answer 1

I was able to fix a similar problem using two different methods related to QEMU / KVM CPU model configuration . Both used Homebrew's port of QEMU, version 5.1.

Option #1: Specify the CPU Model

Try specifying the CPU model which most closely matches the host machine.

1. Determine the CPU type of the host machine.

$ sysctl -a | grep machdep.cpu.brand_string
machdep.cpu.brand_string: Intel(R) Core(TM) i5-4690 CPU @ 3.50GHz

2. Find the matching CPU model supported by QEMU.

$ qemu-system-x86_64 -cpu help

A search at ark.intel.com , for i5-4690 yields only one 3.5 GHz option, so this is my CPU. Using the Product Collection and Code Name , this CPU must correspond to the x86 Haswell-v4 model.

3. Substitute the CPU model in the QEMU command.

$ qemu-system-x86_64 -cpu Haswell-v4 ...

Option #2: Emulate the CPU

If you still have issues, you can try emulating the CPU instead of using host passthrough. This just requires using the default qemu64 CPU type . You can do this like so:

$ qemu-system-x86_64 -cpu qemu64 ...

Answer 2

Disable huge pages

-cpu host,-pdpe1gb