[Bug 110951] GPU hang while using kvmgt
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sun Nov 17 12:36:11 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=110951
--- Comment #20 from velde666 at gmail.com ---
Hi there,
this morning at 11:05 the Windows vm crashed again with loads of following
messages:
Nov 17 11:05:04 floor13 kernel: gvt: vgpu 1: fail: shadow page 00000000676a8bff
guest entry 0xfb286b90fb286b9 type 9
Nov 17 11:05:04 floor13 kernel: gvt: vgpu 1: fail: spt 00000000bd066075 guest
entry 0xfb286b90fb286b9 type 9
Nov 17 11:05:04 floor13 kernel: gvt: vgpu 1: fail: shadow page 00000000bd066075
guest entry 0xfb286b90fb286b9 type 9.
Nov 17 11:05:04 floor13 kernel: gvt: guest page write error, gpa 194e47000
ending with
Nov 17 11:05:05 floor13 kernel: gvt: vgpu 1: fail to flush post shadow
Nov 17 11:05:05 floor13 kernel: gvt: vgpu 1: fail to dispatch workload, skip
After that I got several kernel traces starting with
Nov 17 11:07:46 floor13 kernel: INFO: task gvt_service_thr:301 blocked for more
than 122 seconds.
repeating every 2 minutes and ending at 11:15:58.
Unfortunately no dump was written in /sys/class/drm/card0/error
[root at floor13 ~]# cat /sys/class/drm/card0/error
No error state collected
I had to destroy the vm leaving the corresponding qemu-kvm process zombified.
As long as I do not restart the host I am not able to restart the Windows vm as
the zombie process blocks all connected devices
Any help or suggestions much appreciated :\
Best regards
Alex
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