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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 19:39:53 +0200 |
| commit | dee4dcba78baf712cab403d47d9db319ab7f95d6 (patch) | |
| tree | 418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/108/debug/1674117 | |
| parent | 4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff) | |
| download | emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip | |
restructure results
Diffstat (limited to 'results/classifier/108/debug/1674117')
| -rw-r--r-- | results/classifier/108/debug/1674117 | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/results/classifier/108/debug/1674117 b/results/classifier/108/debug/1674117 deleted file mode 100644 index db05bfa4..00000000 --- a/results/classifier/108/debug/1674117 +++ /dev/null @@ -1,101 +0,0 @@ -debug: 0.937 -semantic: 0.937 -graphic: 0.924 -other: 0.900 -permissions: 0.884 -device: 0.882 -PID: 0.875 -KVM: 0.858 -boot: 0.850 -network: 0.839 -performance: 0.826 -files: 0.815 -socket: 0.788 -vnc: 0.786 - -Qemu VM start kills Pulseaudio - -When I start a VM (start command below) in Qemu version >2.5, it kills Pulseaudio (paired with a huge lagspike) in ~4/5 cases. Using version 2.5 build from GIT, it works fine. This also happens when building from the current GIT master (ebedf0f). -Host: - Freshly installed Antergos Arch Linux 4.10.3-1-ARCH - Intel I7-5930K - ASUS X99 Deluxe II latest UEFI - GTX 770 - -Guest: - Windows 10 x64 - AMD RX480 via VFIO - -This also happened on my last install (Ubuntu GNOME 16.10). - -Start command: - QEMU_AUDIO_DRV=pa \ - QEMU_PA_SAMPLES=4096 \ - qemu-system-x86_64 \ - -serial none \ - -parallel none \ - -nodefconfig \ - -nodefaults \ - -name win10 \ - -enable-kvm \ - -cpu host,check,kvm=off \ - -smp 12,sockets=1,cores=6,threads=2 \ - -m 16G \ - -mem-prealloc \ - -device nec-usb-xhci,id=xhci \ - -device usb-host,vendorid=0x05ac,productid=0x0205,bus=xhci.0 \ - -net nic,vlan=0,model=virtio \ - -net bridge,vlan=0,br=bridge0 \ - -object iothread,id=iothread0 \ - -device virtio-blk-pci,iothread=iothread0,drive=drive0 \ - -drive file="$DISK",format=raw,if=none,cache=none,aio=native,id=drive0 \ - -boot order=c,menu=on \ - -rtc base=utc \ - -nographic \ - -k de \ - -monitor stdio \ - -soundhw hda \ - -device vfio-pci,host=02:00.0,addr=09.0,multifunction=on,x-vga=on \ - -device vfio-pci,host=02:00.1,addr=09.1 \ - -device vfio-pci,host=04:00.0,addr=07.0,multifunction=on,id=usbcontroller - -When it kills Pulseaudio, I see these errors in the Qemu console: - pulseaudio: set_sink_input_volume() failed - pulseaudio: Reason: Bad state - pulseaudio: set_sink_input_mute() failed - pulseaudio: Reason: Bad state - pulseaudio: set_source_output_volume() failed - ... many more of these ... - -The journal shows that PulseAudio is killed: - Mär 19 13:12:42 hp-desktop systemd[530]: pulseaudio.service: Main process exited, code=killed, status=9/KILL - Mär 19 13:12:42 hp-desktop systemd[530]: pulseaudio.service: Unit entered failed state. - Mär 19 13:12:42 hp-desktop systemd[530]: pulseaudio.service: Failed with result 'signal'. - Mär 19 13:12:42 hp-desktop systemd[530]: pulseaudio.service: Service hold-off time over, scheduling restart. - Mär 19 13:12:42 hp-desktop systemd[530]: Stopped Sound Service. - Mär 19 13:12:42 hp-desktop systemd[530]: Starting Sound Service... - -I've also captured a PulseAudio debug log when this happens, but it does not contain anything interesting (no warnings or errors), which makes sense in case of SIGKILL. - -In DMESG I get some errors too, but they seem to be just symptoms (but Im just guessing...); 00:14.0 is the USB controller my DAC is connected to: - [ 4372.389051] usb 3-9.4: current rate 4500480 is different from the runtime rate 44100 - [ 4372.509163] usb 3-9.4: current rate 4500480 is different from the runtime rate 44100 - [ 4372.559104] usb 3-9.4: current rate 4500480 is different from the runtime rate 44100 - [ 4373.652557] xhci_hcd 0000:00:14.0: ERROR unknown event type 37 - [ 4373.712382] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 1 comp_code 36 - [ 4373.715714] xhci_hcd 0000:00:14.0: Looking for event-dma 0000000745da7f00 trb-start 0000000745da7f10 trb-end 0000000745da7f10 seg-start 0000000745da7000 seg-end 0000000745da7ff0 - [ 4373.719055] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 1 comp_code 1 - [ 4373.722381] xhci_hcd 0000:00:14.0: Looking for event-dma 0000000745da7f00 trb-start 0000000745da7f10 trb-end 0000000745da7f10 seg-start 0000000745da7000 seg-end 0000000745da7ff0 - [ 4373.725753] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 4 comp_code 13 - [ 4373.725759] xhci_hcd 0000:00:14.0: Looking for event-dma 000000073c5a51a0 trb-start 000000073c5a51b0 trb-end 000000073c5a51b0 seg-start 000000073c5a5000 seg-end 000000073c5a5ff0 - -I stumbled across this bug: https://bugs.launchpad.net/ubuntu/+source/linux-rt/+bug/367671 -Im not sure if that bug relates to this one, but after disabling realtime scheduling, pulseaudio does not crash anymore. -However, the lag when starting the VM got significantly worse, the system is pretty much unusable the first ~20-30 seconds. - -After switching from SeaBios to OVMF the issue seems to be gone, indicating a problem with the former. - -Looking through old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays? - -[Expired for QEMU because there has been no activity for 60 days.] - |