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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/553.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/553.toml | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/553.toml b/gitlab/issues/target_missing/host_missing/accel_missing/553.toml new file mode 100644 index 00000000..23c9967a --- /dev/null +++ b/gitlab/issues/target_missing/host_missing/accel_missing/553.toml @@ -0,0 +1,33 @@ +id = 553 +title = "Virtio-vga with blobs on fails, when qemu compiled with enabled modules" +state = "closed" +created_at = "2021-08-21T19:15:08.697Z" +closed_at = "2021-09-01T11:37:49.404Z" +labels = ["Build System", "Regression"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/553" +host-os = "Manjaro Linux" +host-arch = "x86 (others may be affected too)" +qemu-version = "QEMU emulator version 6.0.94 (v6.1.0-rc4-dirty)" +guest-os = "n/a" +guest-arch = "n/a" +description = """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.""" +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 = """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""" |