[Lguest] unhandled trap 256 at 0xc01027ea (0x0)

Rusty Russell rusty at rustcorp.com.au
Mon Feb 4 17:21:23 EST 2008


On Monday 04 February 2008 11:54:51 Mark Wallis wrote:
> Hi everyone,
>
> Can anyone here give me a few pointers on how to debug "unhandled trap
> 256" errors ? I've managed to get suspend/resume to a point where I'm
> restoring the registers and lguest_user data structures, but once the
> guest resumes it immediately is throwing "unhandled trap 256 at
> 0xc01027ea (0x0)".
>
> I'll keep digging anyway, but if anyone has some pointers it would be
> much appreciated.

It means that the Switcher took a fault, basically.  I'd guess some registers 
are badly wrong, suggest printing them out on suspend and again on resume?

Cheers,
Rusty.



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