Bug#605673: [lenny] KVM host crash at kvm:gfn_to_rmap+0x17/0x49

[Jonathan Nieder <jrnieder@gmail.com>]

Hi,

Eneko Lacunza wrote:

> System was rebooted 3 days ago. There are about 8 virtual machines.
> One of them was doing heavy I/O during the crash.
>
> After a cold-reboot everything worked ok and the heavy I/O task has
> been re-run and completed successfully.
[...]
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
> IP: [<ffffffffa025e963>] :kvm:gfn_to_rmap+0x17/0x49
>  [498738.031444] PGD 338c91067 PUD 338cc9067 PMD 0 
>  [498738.031444] Oops: 0000 [1] SMP 
>  [498738.031444] CPU 3 
>  [498738.031444] Modules linked in: tun kvm_intel kvm ipv6 bridge loop snd_pcm snd_timer snd sou
> i2c_core parport_pc parport shpchp pcspkr rng_core i5000_edac container button pci_hotplug edac_
> mirror dm_log dm_snapshot dm_mod ide_cd_mod cdrom piix ide_pci_generic ide_core ses enclosure sd
> ci_hcd uhci_hcd tg3 aacraid scsi_mod thermal processor fan thermal_sys [last unloaded: scsi_wait
> 
>  [498738.031444] Pid: 3275, comm: kvm Not tainted 2.6.26-2-amd64 #1

Sorry we missed this before.  Was it reproducible?