Re: [Xen-devel] segfault in dom0

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Also, to clarify: there was no other domain than DOM0 involved in this
transfer -- the transfer was from a remote machine?

 -- Keir

> 
> Can you point us at the vmlinux file for this backtrace? Also, I can't
> see the repository revision you've described -- what is the output of
> 'bk sccslog | head' on your repository?
> 
>  Thanks,
>  Keir
> 
> > Just finished copying 135 gigs of files into my dom0 system over
> > the network using smbclient. No errors occured during the copy.
> > Immediately afterwards i tried to run a find command, but it's
> > segfaulting on me:
> > 
> > <1>Unable to handle kernel NULL pointer dereference at virtual address 
> > 00000000
> >  printing eip:                                                              
> >                
> > c0037d86      
> > *pde=00000000(55555000)
> > Oops: 0000             
> > CPU:    0 
> > EIP:    0819:[<c0037d86>]    Not tainted
> > EFLAGS: 00211213                        
> > eax: 00000000   ebx: fffffff0   ecx: 0000000d   edx: 00196f45
> > esi: 00000000   edi: c07fffa0   ebp: c07fff00   esp: c07ffee0
> > ds: 0821   es: 0821   ss: 0821                               
> > Process find (pid: 975, stackpage=c07ff000)<1>
> > Stack: c07fff50 00000000 c07fffa0 00000000 c1092758 c24bd000 00196f45 
> > 00000003 
> >        c07fff14 c002f571 c1d3aa40 c07fff50 c07fff50 c07fff5c c002fd40 
> > c1d3aa40 
> >        c07fff50 00000000 c07fffa0 c24bd000 00000000 c278f8c0 0000000e 
> > c12c8974 
> > Call Trace: [<c002f571>] [<c002fd40>] [<c002ffed>] [<c003015e>] 
> > [<c00303cd>]   
> >    [<c002cf9a>] [<c009c08b>]                                                
> >  
> >                              
> > 
> > I've tried running find a few times, and the only differences each time
> > are in edi/ebp/esp/stackpage/stack/pid
> > 
> > I'm currently running rev 40f41ae00utn5d2f3tlNLcvG_QhiBA from 2004-07-13 
> > 17:24:48
> > 
> > This also happened to me on an older rev, but i was messing about with the 
> > vmmon
> > stuff at the time, and i also wanted to move up to a newer rev to see if 
> > that
> > fixed things before saying anything. Now, last time the find worked again 
> > after
> > a reboot, but that's obviously no good. For the moment this time i've just 
> > left
> > things as-is right now.
> > 
> > -- 
> > Jody Belka
> > knew (at) pimb (dot) org
> > 
> > 
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> 
> 
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