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I'm running a Win10 VM with libvirt/qemu/kvm, and since my most recent system update, the VM no longer boots when set to use more than one CPU core. Instead, it settles into a pattern like this ad infinitum, with no output on the attached gpu. What I have tried, is a different version of OVMF (no change), removing all pci/usb/other devices (no change), and booting another VM with 4 cores (FreeBSD, seabios, ran fine). I am running libvirt 1.2.20-3, qemu 2.4.0-1, ovmf 18419-1, and kernel 4.2.5-1-ARCH (which I believe may be the problem, but do not know how to test).
Any help would be greatly appreciated, thanks all.
EDIT:
Downgrading to 4.1.6-1 fixed the problem, my question now, is whether this is a reportable bug in the kernel, and if so, where and how should I (or someone better at writing bug reports than I) report it to?
Last edited by morat (2015-11-04 23:47:30)
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No need to report it:
http://thread.gmane.org/gmane.comp.bios … focus=3679
http://thread.gmane.org/gmane.comp.emul … vel/142620
The patch should become part of 4.4:
http://git.kernel.org/cgit/virt/kvm/kvm … a79b2fe73f
and I think it will be backported to the 4.2.y and 4.3.y stable branches as well.
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