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Diffstat (limited to 'results/classifier/108/graphic/553')
| -rw-r--r-- | results/classifier/108/graphic/553 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/results/classifier/108/graphic/553 b/results/classifier/108/graphic/553 new file mode 100644 index 000000000..213df3345 --- /dev/null +++ b/results/classifier/108/graphic/553 @@ -0,0 +1,40 @@ +graphic: 0.992 +debug: 0.972 +device: 0.966 +PID: 0.900 +performance: 0.812 +semantic: 0.751 +network: 0.740 +vnc: 0.727 +boot: 0.725 +socket: 0.666 +files: 0.605 +KVM: 0.475 +permissions: 0.435 +other: 0.243 + +Virtio-vga with blobs on fails, when qemu compiled with enabled modules +Description of problem: +When using qemu configured with `--enabled-modules` and starting qemu with command line above, qemu crashes with following output: +``` +qemu-system-x86_64: -device virtio-vga,blob=on: cannot enable blob resources without udmabuf +``` +While qemu configured without `--enabled-modules` runs this command successfully. +Steps to reproduce: +1. Get latest qemu source code +2. Build qemu `mkdir build && cd build && ../configure && ninja` +3. Check if following command runs without errors and show sdl qemu window + ``` + sudo ./qemu-system-x86_64 \ + -object memory-backend-memfd,id=mem1,size=512M \ + -machine memory-backend=mem1 \ + -display sdl \ + -device virtio-vga,blob=on + + ``` +4. Then try to build with modules enabled `mkdir build && cd build && ../configure --enable-modules && ninja` +5. Try to do step 3 again +Additional information: +I tried to debug this bug, and found that problem is with function `virtio_gpu_have_udmabuf`: when qemu is build without modules this function is from `hw/display/virtio-gpu-udmabuf.c` (which is correct), but when qemu compiled with modules this function comes from `stubs/virtio-gpu-udmabuf.c` and when `hw-display-virtio-gpu.so` is loaded, `virtio_gpu_have_udmabuf` is not replaced, and remains function from stub (which always return 0) and command fails. + +I think I will submit patch that fix it tomorrow |