Re: 2.6.26-rc8 pv_ops causes Unhandled invalid opcode fault/trap

Jeremy Fitzhardinge wrote:

Is this consistent or sporadic?  

Consistently fails to boot, across a few test boxes, slightly different 
Xen versions -- all around Xen 3.2.1, same config.

Does it depend on how much guest memory you give it?

No.  Tried with 128, 360, 5000.  They all fail in the same way.

What was the last kernel version which worked?

I built a 2.6.25.10 pv_ops this morning and it boots fine.

Were there any other errors/warnings printed here?

Nope.  Just some whitespace.

quoted

(XEN) traps.c:413:d332 Unhandled invalid opcode fault/trap [#6] on 
VCPU 0 [ec=0000]
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 332 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-3.2.1-rc5  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    e019:[<00000000c0103b55>]

Could you decode this to see which function this corresponds to?

I'd love to know how for future reference, but for now I've placed the 
files here:

http://www.theshore.net/~caker/xen/pvops-bug1/

Thanks,
-Chris