Re: qemu-kvm throws error "handle_exception: unexpected, vectoring info..."

Naresh Bhat
2011-07-20T10:18:40Z

Hi Gleb,

How can I differentiate or find out is it a production processor or not ?
If it not a production based processor. If I upgrade the BIOS with
the latest suitable version will it work ? any idea ?

root@Tux:~# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Genuine Intel(R) CPU @ 0000 @ 2.93GHz
stepping : 2
cpu MHz : 2933.739
cache size : 8192 KB
physical id : 1
siblings : 8
core id : 0
cpu cores : 4
apicid : 16
initial apicid : 16
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology
nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3
cx16 xtpr pdcm dca sse4_1 sse4_2 x2apic popcnt lahf_lm ida tpr_shadow
vnmi flexpriority ept vpid
bogomips : 5867.47
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Genuine Intel(R) CPU @ 0000 @ 2.93GHz
stepping : 2
cpu MHz : 2933.739
cache size : 8192 KB
physical id : 1
siblings : 8
core id : 1
cpu cores : 4
apicid : 18
initial apicid : 18
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology
nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3
cx16 xtpr pdcm dca sse4_1 sse4_2 x2apic popcnt lahf_lm ida tpr_shadow
vnmi flexpriority ept vpid
bogomips : 5865.76
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
....
.............
.......................

Thanks
-Naresh Bhat

2011/7/20 Gleb Natapov <gleb@redhat.com>:
> On Wed, Jul 20, 2011 at 03:02:59PM +0530, Naresh Bhat wrote:
>> Hi Gleb,
>>
>> Yes,  I am always got this error message.  I feel these messages are
>> from kernel.  Till today I am not able to launch the with full
>> virtualization support.  I am able to launch with the -no-kvm option
>> to the above command-line. But still I can see the same messages.I am
>> connected to the target with ssh.
>>
>> After connecting the monitor and modifying command line for
>> kernel(vga=0x) behavior qemu-kvm similar as below
>>
>> A black screen with "VGA Blank mode" message in the middle.
>>
>> I saw a message from Avi Kitty saying that "The guest runs the vga
>> vios and hangs.  Please try with a production
>> processor"
>>
>> from the link http://comments.gmane.org/gmane.comp.emulators.kvm.devel/45870
>>
> And your cpu is production one? What "cat /proc/cpuinfo" on the hoest
> shows?
>
>> Thanks
>> -Naresh Bhat
>>
>> On Wed, Jul 20, 2011 at 2:41 PM, Gleb Natapov <gleb@redhat.com> wrote:
>> > On Wed, Jul 20, 2011 at 02:37:47PM +0530, Naresh Bhat wrote:
>> >> Hi Gleb,
>> >>
>> >> I am trying to launch with the following command.
>> >>
>> >> # qemu-kvm -kernel ./bzImage.bin -hda ./rootfs-vm.ext2 -append "root=/dev/sda rw
>> >> ip=off" -curses
>> >>
>> > Are you always get this error when you are trying the command line above?
>> >
>> >> Thanks
>> >> -Naresh Bhat
>> >>
>> >> 2011/7/20 Gleb Natapov <gleb@redhat.com>
>> >>
>> >> > On Wed, Jul 20, 2011 at 02:15:10PM +0530, Naresh Bhat wrote:
>> >> > > Hi All,
>> >> > >
>> >> > > I am using
>> >> > > 1. Kernel Version - linux-2.6.32
>> >> > > 2. The QEMU-KVM package version is qemu-kvm-0.13.0
>> >> > >
>> >> > > on the below hardware..
>> >> > >
>> >> > > =========================================================================
>> >> > > Board info:
>> >> > > BIOS Revision                Txx052.01_CRB
>> >> > > CSI RC Revision              01.03 RC1
>> >> > > Memory RC Revision           01.03 RC4
>> >> > > CSM Revision                 02.54
>> >> > > Platform                     GreenCity
>> >> > > Processor BSP Revision       106A2 - Nehalem B0
>> >> > > Tylersburg Revision          TylersBurg - B0
>> >> > > ICH Revision                 ICH10: Consumer - A0
>> >> > > =========================================================================
>> >> > >
>> >> > > I am facing the following spammed error in dmesg. But Without kvm
>> >> > > support qemu manages to start.
>> >> > >
>> >> > > [  213.729167] handle_exception: unexpected, vectoring info 0x8000000d
>> >> > intr
>> >> > > info 0x80000b0d
>> >> > > [  213.729169] handle_exception: unexpected, vectoring info 0x8000000d
>> >> > intr
>> >> > > info 0x80000b0d
>> >> > > [  213.729171] handle_exception: unexpected, vectoring info 0x8000000d
>> >> > intr
>> >> > > info 0x80000b0d
>> >> > >
>> >> > > Any patches available for the above error message ?
>> >> > >
>> >> > And your command line is...?
>> >> >
>> >> > --
>> >> >                         Gleb.
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> "For things to change, we must change"
>> >> -Naresh Bhat
>> >
>> > --
>> >                        Gleb.
>> >
>>
>>
>>
>> --
>> "For things to change, we must change"
>> -Naresh Bhat
>
> --
>                        Gleb.
>