https://bugzilla.kernel.org/show_bug.cgi?id=120751 Bug ID: 120751 Summary: Host kernel freezes when I shutdown guest Product: Virtualization Version: unspecified Kernel Version: 4.6.2 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: mkletzan@xxxxxxxxxx Regression: No I wasn't able to find the smallest case that would cause this, so I'll describe the whole procedure how to reproduce this. I'll then try to narrow down the cause. If there is some information I might gather anywhere, I'll be more than happy to provide such information. Reproducible: always Steps: 1) I start a guest, switch to text console and login. 2) Then in the host I run: a) 'virsh dompmsuspend $guest mem' which tells the guest's qemu-ga to suspend to RAM. b) I then run 'virsh dompmwakeup $guest' to wake it up. The guest console misbehaves at this point (which is what I am trying to reproduce to solve another bug). 3) So I connect using ssh and run 'shutdown -h now'. Actual results: At that point last fraction of the second of the music I was playing (whatever remained in the buffer, I guess) starts repeating and the host stops responding. Even Magic SysRq doesn't work. I have to manually force the host off with a button and boot again. Expected results: Host keeps running. I've first seen that in 4.6.2, I tried 4.6.0 and it happened as well. I'm not sure whether this is related to Virtualization or graphics drivers or anything else. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
