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

Gleb Natapov
2011-07-20T10:24:43Z

On Wed, Jul 20, 2011 at 03:48:39PM +0530, Naresh Bhat wrote:
> Hi Gleb,
>
> How can I differentiate or find out is it a production processor or not ?
I don't know for sure but "model name" name from the output below does
not look like something that comes from production CPU. Try on another
CPU please.

> If it not a production based processor. If I upgrade the BIOS with
> the latest suitable version will it work ? any idea ?
>
Have no 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.
> >

--
Gleb.