segfault with windows XP guest

segfault with windows XP guest

[Gene Horodecki]

Hi there, I currently have about five guests set up with KVM, one of 
them being windows XP.  I am having trouble with the windows XP one.  It 
will works for a bit and then the process dies with the following in the 
kern.log:

kvm[5593]: segfault at 29c ip 00000000004316d8 sp 00007fff0766bed0 error 
4 in kvm[400000+1e0000]

Once the process dies once, then it keeps happening.  The virtual 
machine will hardly boot now and it just crashes with this error.

No major load on the windows VM, acpi enabled, a single 20Gb raw disk.

Really hoping to get this working, thanks!

Re: segfault with windows XP guest

[Avi Kivity]

On 08/08/2009 03:56 AM, Gene Horodecki wrote:
> Hi there, I currently have about five guests set up with KVM, one of 
> them being windows XP.  I am having trouble with the windows XP one.  
> It will works for a bit and then the process dies with the following 
> in the kern.log:
>
> kvm[5593]: segfault at 29c ip 00000000004316d8 sp 00007fff0766bed0 
> error 4 in kvm[400000+1e0000]
>
> Once the process dies once, then it keeps happening.  The virtual 
> machine will hardly boot now and it just crashes with this error.
>
> No major load on the windows VM, acpi enabled, a single 20Gb raw disk.
>
> Really hoping to get this working, thanks!
>

Please generate a core dump and a stack trace.  You may need to 
./configure --disable-strip so that debug symbols are retained.

-- 
error compiling committee.c: too many arguments to function

Re: segfault with windows XP guest

[Avi Kivity]

On 08/10/2009 03:13 PM, Gene Horodecki wrote:
> Avi Kivity wrote:
>> On 08/08/2009 03:56 AM, Gene Horodecki wrote:
>>> Hi there, I currently have about five guests set up with KVM, one of 
>>> them being windows XP.  I am having trouble with the windows XP 
>>> one.  It will works for a bit and then the process dies with the 
>>> following in the kern.log:
>>>
>>> kvm[5593]: segfault at 29c ip 00000000004316d8 sp 00007fff0766bed0 
>>> error 4 in kvm[400000+1e0000]
>>>
>>> Once the process dies once, then it keeps happening.  The virtual 
>>> machine will hardly boot now and it just crashes with this error.
>>>
>>> No major load on the windows VM, acpi enabled, a single 20Gb raw disk.
>>>
>>> Really hoping to get this working, thanks!
>>>
>>
>> Please generate a core dump and a stack trace.  You may need to 
>> ./configure --disable-strip so that debug symbols are retained.
>>
> Can someone please link me to instructions on how to do this?  Thanks.
>

On the command line, do

   $ ulimit -c unlimited

then run your guest (from the command line).  When it segfaults it will 
say "core dumped".  Look for a file named core (or core.$PID), and run

   $ gdb /path/to/qemu-system-x86_64 /path/to/core/file
   (gdb) bt full

and post the results.

-- 
error compiling committee.c: too many arguments to function