KVM dies witth SIGSEGV when firefox is started in the VM instance

[C de-Avillez]

Running a SRU check on Oneiric. Whenever Firefox is started in the VM, kvm dies. All that I get is one line in the syslog:

2012-03-14T11:42:32.884233-05:00 xango3 kernel: [ 5922.510590] qemu:clean-onei[8089] general protection ip:7fdb8ada384f sp:7fff26e11018 error:0 in qemu-system-x86_64[7fdb8ac58000+2ca000]

I ran KVM under GDB, and repeated.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: kvm (not installed)
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Wed Mar 14 12:08:46 2012
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: Dell Inc. Latitude E6410
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-18-generic root=/dev/mapper/hostname--vg-hostname--root ro crashkernel=384M-2G:64M,2G-:128M
SourcePackage: qemu-kvm
UpgradeStatus: Upgraded to precise on 2012-01-13 (61 days ago)
dmi.bios.date: 05/26/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0K42JR
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/26/2011:svnDellInc.:pnLatitudeE6410:pvr0001:rvnDellInc.:rn0K42JR:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6410
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.

[C de-Avillez (hggdh2)]

Domain def:

<domain type='kvm'>
  <name>clean-oneiric-amd64</name>
  <uuid>45c30d2e-234d-d1c7-8a55-60a1688935c6</uuid>
  <memory>2048000</memory>
  <currentMemory>2048000</currentMemory>
  <vcpu>1</vcpu>
  <os>
    <type arch='x86_64' machine='pc-0.14'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='writeback'/>
      <source file='/opt/VM/img/clean-oneiric-amd64/disk0.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='block' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='1' unit='0'/>
    </disk>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:94:53:40'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes'/>
    <video>
      <model type='vmvga' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </memballoon>
  </devices>
</domain>

[Serge Hallyn (serge-hallyn)]

Thanks for submitting this bug. It looks like a dup of bug 918791. There is a working patch for that. It has a Tested-by from the community, but has not yet been merged or acked by upstream.