Re: [Xen-users] pv_ops domU crashes on pv_ops dom0 (directly at boot)

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 01/19/2010 09:43 AM, Pasi Kärkkäinen wrote:
> > GNU gdb 6.8-debian
> > Copyright (C) 2008 Free Software Foundation, Inc.
> > License GPLv3+: GNU GPL version 3 or later<http://gnu.org/licenses/gpl.html>
> > This is free software: you are free to change and redistribute it.
> > There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> > and "show warranty" for details.
> > This GDB was configured as "x86_64-linux-gnu"...
> > (gdb) x/i 0xffffffff8100930a
> > 0xffffffff8100930a<hypercall_page+778>:   add    %al,(%rax)
> > (gdb) list *0xffffffff8100930a
> > No source file for address 0xffffffff8100930a.
> >      
> Try running gdb in the kernel source directory to get the lines from the source 
> file!
>    
Its the hypercall_page; there is no source, and no code either; the 
hypercall stubs are plugged in there at domain-build time.  The 
hypercall is 24 (778/32), which is vcpu_op; not sure what's going on in 
this path.
But this is completely different from Markus's original bug report.  How 
many vcpus are there?  It may be getting the wrong cpu context (booting 
with a single vcpu would be simplest).
    J


> -- Pasi
>
>    
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