Re: [BUG] kvm crashes in 2.6.28-rc6-00007-ged31348

[Luis Henriques <henrix@sapo.pt>]

On Sun, Nov 30, 2008 at 10:20:45PM +0200, Avi Kivity wrote:
> Luis Henriques wrote:
>> Hi,
>>
>> Maybe this is duplicated bug report, but since I was not able to find any
>> reference to it, I am reporting it anyway.
>>
>> I am running 2.6.28-rc6-00007-ged31348 on x86_64.
>>
>> I just tried to start kvm and got the following:
>>
>> [  883.483978] ------------[ cut here ]------------
>> [  883.483995] kernel BUG at /home/miguel/projects/linux/trees/linux-2.6/arch/x86/kvm/../../../virt/kvm/kvm_main.c:1824!
>> [  883.484006] invalid opcode: 0000 [#1] PREEMPT SMP [  883.484021] 
>> last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
>> [  883.484031] Dumping ftrace buffer:
>> [  883.484038]    (ftrace buffer empty)
>> [  883.484044] CPU 1 [  883.484052] Modules linked in: kqemu loop 
>> aes_x86_64 aes_generic af_packet binfmt_misc bridge stp llc rfcomm bnep 
>> sco l2cap bluetooth vboxdrv kvm_amd kvm parport_pc ppdev parport ipv6 
>> powernow_k8 cpufreq_userspace cpufreq_powersave cpufreq_stats 
>> cpufreq_ondemand freq_table cpufreq_conservative container sbs wm
>> i sbshc iptable_filter ip_tables x_tables sbp2 arc4 snd_hda_intel ecb snd_pcm snd_page_alloc snd_hwdep ath5k snd_seq snd_timer snd_seq_device mac80211 led_cl
>> ass uvcvideo i2c_piix4 snd compat_ioctl32 videodev v4l1_compat cfg80211 i2c_core k8temp psmouse rfkill video output battery soundcore ac input_polldev button
>>  evdev ext3 jbd mbcache sr_mod cdrom ata_generic pata_acpi sg sd_mod pata_atiixp ahci ide_pci_generic ohci1394 ieee1394 ide_core ehci_hcd ohci_hcd libata usb
>>  core scsi_mod r8169 mii thermal processor fan fuse
>>  [  883.484270] Pid: 10886, comm: kvm Tainted: G        W  2.6.28-rc6-00007-ged31348 #1
>>  [  883.484270] RIP: 0010:[<ffffffffa04b8262>]  [<ffffffffa04b8262>] kvm_handle_fault_on_reboot+0x12/0x20 [kvm]
>>   
>
> Is it repeatable? Does it happen if you prefix the qemu command with  
> 'taskset 1'?

No, I was not able to reproduce the issue.  Please let me know if you need some
more information on my system (.config, for instance).

-- 
Luis Henriques