[Lguest] Loading Lguest guest - Unhandled trap 256 at x100000

[Eviatar Khen]

Hi Naman,

I think what Ron meant was to disassembly of the kernel's image 
(vmlinux), not the Lguest binary (which is user space and does not 
generate directly interrupts).
The guest crashes because the host got an invalid interrupt number, and 
it is very interesting to understand who generated it.

Good luck,

Eviatar

On 04/26/2013 08:34 PM, Naman Muley wrote:
> Hey Ron,
>
> Thanks for reaching out. I did the following( i am not sure if that's 
> what you wanted me to do) :
>
> objdump -D -b binary -m i386 Documentation/virtual/lguest/lguest  > 
> /home/ngm7/disassembly.txt
> Following is the screenshot: Does that make sense ?
>
> I had to take a screenshot because the disassembly.txt is inside the 
> virtual machine. I'm working on ways to get that file out of the 
> virtual machine.
>
> NOTE: the last line in the file was 6a1d. In the meanwhile, if you 
> want to look at any specific line, let me know.
> I apologize for the raw kind of feedback.
>
> Naman
>
>
>
>
> On Fri, Apr 26, 2013 at 11:45 AM, ron minnich <rminnich at gmail.com 
> <mailto:rminnich at gmail.com>> wrote:
>
>     you might want to do a quick disassembly of the binary to see what's
>     at 0x100000. The 256 is (to me) kind of odd. So what's the start of
>     that image look like? Sorry, I'm rusty on lguest (i.e. I'm not Rusty)
>     so I'm not going to be as useful. But I would be curious to see the
>     disassembly.
>
>     ron
>
>
>
>
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