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Date: Tue, 01 Mar 2011 17:37:21 -0000
From: Serge Hallyn <723871@bugs.launchpad.net>
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Subject: [Qemu-devel] [Bug 723871] Re: qemu-kvm-0.14.0 Aborts with -vga qxl
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** Attachment added: "debs with proposed fix for amd64 natty"
   https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/723871/+attachme=
nt/1879081/+files/nattydebs.tgz

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https://bugs.launchpad.net/bugs/723871

Title:
  qemu-kvm-0.14.0 Aborts with -vga qxl

Status in QEMU:
  Confirmed
Status in =E2=80=9Cqemu-kvm=E2=80=9D package in Ubuntu:
  New

Bug description:
  Host CPU is Core i7 Q820.  KVM is from 2.6.35-gentoo-r5 kernel (x86_64).
  Host has spice-0.7.2 and spice-protocol-0.7.0.
  Guest is Windows XP SP3 with qxl driver 0.6.1, virtio-serial 1.1.6 and vd=
agent 0.6.3.

  qemu-kvm is started like so:
  qemu-system-x86_64 -cpu host -enable-kvm -pidfile /home/rick/qemu/hds/wxp=
.pid -drive file=3D/home/rick/qemu/hds/wxp.raw,if=3Dvirtio,media=3Ddisk,aio=
=3Dnative,snapshot=3Don -m 768 -name WinXP -net nic,model=3Dvirtio -net use=
r -localtime -usb -vga qxl -device virtio-serial -chardev spicevmc,name=3Dv=
dagent,id=3Dvdagent -device virtserialport,chardev=3Dvdagent,name=3Dcom.red=
hat.spice.0 -spice port=3D1234,disable-ticketing -monitor stdio
  and crashes with:
  qemu-system-x86_64: /home/rick/qemu/src/qemu-kvm-0.14.0/qemu-kvm.c:1724: =
kvm_mutex_unlock: Assertion `!cpu_single_env' failed.
  Aborted

  If I use -no-kvm, it works fine.  If I use -vga std, it works fine.
  -enable-kvm and -vga qxl crashes.