RE: Xenoprof for xen-unstable (was Re: [Xen-devel] [PATCH] Xenoprof: Enabling performance profiling in Xen)

["Santos, Jose Renato G (Jose Renato Santos)" <joserenato.santos@xxxxxx>]

  Andrew

  I will take a look at this and  generate our own patch for
  xen-unstable. I will let you know if I get a working
  version for xen-unstable. I suspect this is related to NMI
  handling ...
  
  Renato

> -----Original Message-----
> From: Andrew Theurer [mailto:habanero@xxxxxxxxxx] 
> Sent: Friday, April 15, 2005 10:49 AM
> To: Xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: Turner, Yoshio; Aravind Menon; Bin Ren; Santos, Jose 
> Renato G (Jose Renato Santos); G John Janakiraman
> Subject: Xenoprof for xen-unstable (was Re: [Xen-devel] 
> [PATCH] Xenoprof: Enabling performance profiling in Xen)
> 
> 
> This is my feeble attempt to port xenoprof to xen-unstable.  I really 
> did not make a lot of changes, but(!) the one big caveat is that it 
> does not work :)
> 
> The 2 patches attached are for ./xen and for 
> ./linux-2.6.11-xen-sparse.  
> Both should patch cleanly against bk (2005-04-15) and should compile 
> fine.  It does boot, but starting profiling causes xen to 
> stop (output 
> below).
> 
> I'm not sure if this is of any use to anyone (being that it does not 
> work yet), but I'd thought "why not" and maybe someone with more 
> knowledge would point out some obvious errors I made.
> 
> -Andrew
> 
> 
> 
> (XEN) CPU:    0
> (XEN) EIP:    0808:[<fc53b3e7>]
> (XEN) EFLAGS: 00210046   CONTEXT: hypervisor
> (XEN) eax: 00000000   ebx: 00000000   ecx: 00000000   edx: 00000000
> (XEN) esi: fc551c00   edi: fc5143de   ebp: 00000000   esp: fc503ea8
> (XEN) ds: 0810   es: 0810   fs: 0810   gs: 0810   ss: 0810   cs: 0808
> (XEN) Stack trace from ESP=fc503ea8:
> (XEN)    00000000 8403d000 [fc5143de] [fc53ac43] fc551c00 [fc5143de] 
> 00000002 00000000
> (XEN)    00200096 006618db 00000002 fc551c00 [fc5143de] 00000000 
> 00000000 fc503f40
> (XEN)    fc569e00 fc503f40 00000000 [fc539c77] 00000000 fc569e00 
> fc503f40 00000002
> (XEN)    fc551c00 fc551c00 fc551c35 [fc52d1e2] fc503f40 00000000 
> 00000000 00000000
> (XEN)    fc551c35 00000000 00000000 [fc536846] fc503f40 fc551c35 
> fc551c00 00000000
> (XEN)    00000000 00000000 00000000 00000000 fc551c00 fc551c00 
> [fc5143de] 00000808
> (XEN)    00200046 fc503f80 00000000 00000000 [fc5196c6] fc503f80 
> fc551c00 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000001 00ef0000 
> [fc516f98] 00000808
> (XEN)    00200246 fc551c00 0000032a fc552840 00000001 
> 0000004c 9eb24e00 
> c0412000
> (XEN)    00000001 00000000 00000006 fffffffc c0107458 
> 00000061 00200246 
> c0413fc0
> (XEN)    00000069 0000007b 0000007b 00000000 00000000 fc551c00
> (XEN) Call Trace from ESP=fc503ea8:
> (XEN)    [<fc5143de>] [<fc53ac43>] [<fc5143de>] [<fc5143de>] 
> [<fc539c77>] [<fc52d1e2>]
> (XEN)    [<fc536846>] [<fc5143de>] [<fc5196c6>] [<fc516f98>]
> (XEN) Faulting linear address might be 0000024c
> (XEN) ************************************
> (XEN) CPU0 FATAL TRAP 14 (page fault), ERROR_CODE 0000, IN INTERRUPT 
> CONTEXT.
> (XEN) System shutting down -- need manual reset.
> (XEN) ************************************
> 

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