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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/deepseek-r1:14b/output/hypervisor/1894836
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloademulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
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+
+kernel panic using hvf with CPU passthrough
+
+Host Details
+QEMU 5.1 (Homebrew)
+macOS 10.15.6 Catalina
+Late 2014 model
+i5-4690 @ 3.5 GHz
+8 GB RAM
+
+Guest Details
+Ubuntu Desktop 20.04.1 Installer ISO
+
+Problem
+Whenever I boot with "-accel hvf -cpu host", the Ubuntu desktop installer will immediately crash with a kernel panic after the initial splash screen.
+See the attached picture of the kernel panic for more details.
+
+Steps to recreate
+From https://www.jwillikers.com/posts/virtualize_ubuntu_desktop_on_macos_with_qemu/
+
+1. Install QEMU with Homebrew.
+$ brew install qemu
+
+2. Create a qcow2 disk image to which to install.
+$ qemu-img create -f qcow2 ubuntu2004.qcow2 60G
+
+3. Download the ISO.
+$ curl -L -o ubuntu-20.04.1-desktop-amd64.iso https://releases.ubuntu.com/20.04/ubuntu-20.04.1-desktop-amd64.iso
+
+4. Run the installer in QEMU.
+$ qemu-system-x86_64 \
+  -accel hvf \
+  -cpu host \
+  -smp 2 \
+  -m 4G \
+  -usb \
+  -device usb-tablet \
+  -vga virtio \
+  -display default,show-cursor=on \
+  -device virtio-net,netdev=vmnic -netdev user,id=vmnic \
+  -audiodev coreaudio,id=snd0 \
+  -device ich9-intel-hda -device hda-output,audiodev=snd0 \
+  -cdrom ubuntu-20.04.1-desktop-amd64.iso \
+  -drive file=ubuntu2004.qcow2,if=virtio
+
+Workaround
+Emulating the CPU with "-cpu qemu64" does not result in a kernel panic.
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