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+KVM: 0.954
+other: 0.943
+graphic: 0.873
+boot: 0.871
+semantic: 0.784
+mistranslation: 0.674
+device: 0.614
+instruction: 0.540
+vnc: 0.504
+socket: 0.459
+network: 0.454
+assembly: 0.345
+
+KVM Win 10 guest pauses after kernel upgrade
+
+
+
+Hello!
+Unfortunately the bug has apparently reappeared. I have a Windows 10 running in a VM, which after my today's "apt upgrade" goes into pause mode after a few seconds of running time.
+
+Until yesterday it used to work and I was able to boot the VM. During the kernel update (from 5.4.0-28.33 to 5.4.0-29.34) the VM was active and then went into pause mode. Even after a reboot of my host system the problem still persists: the VM boots for a few seconds and then switches to pause mode.
+
+
+Kind regards,
+   Andreas
+
+
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+
+Note: might be related (or not) to bug 1866870
+Let's analyze as independent and dup if it turns out to be a dup.
+
+The warnings in the report like "MSR(48FH).vmx-exit-load-perf-global-ctrl" are unrelated (in regard to guest hang).
+Those happen on
+a) too old kernels that don't support the feature
+b) mismatch of expectations of a chips vs its actual capabilities
+E.g. if libvirt thinks a feature should be supported by a chip, but isn't.
+There are toomany SKUs out there to be perfect - so these are red-herrings at best.
+
+I have not seen similar reports recently nor anyone else chiming in on this one.
+After loosing what e thought could be a track to the bgu I'm puzzled what to do now on this?
+
+@Andreas - did you in the meantime find any new insight on this?
+
+@Andreas - If we find nothing else to try I'll ping you when I have a newer qemu&libvirt build for Ubuntu 20.10 for you to try.
+
+I haven't seen any similar reports nor any updates here.
+Might I ask if you  have got any further since then?
+
+Qemu 5.0 is available in Ubuntu 20.10 now, if you are willing to upgrade or install a test system that might be worth a try (new libvirt is still WIP, but unlikely to play a role here).
+20.10 proposed would even have a 5.8.0.12.14 kernel since a kernel change might have been what started this that might be worth a check as well.
+
+[Expired for QEMU because there has been no activity for 60 days.]
+
+[Expired for qemu (Ubuntu) because there has been no activity for 60 days.]
+