summary refs log tree commit diff stats
path: root/results/classifier/108/debug/1674117
diff options
context:
space:
mode:
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/108/debug/1674117
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloademulator-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/1674117101
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.]
-