Re: [Xen-devel] [PATCH] x86_emulate: properly do IP updates and other side effects on success

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.08.14 at 15:16, <fabio.fantoni@xxxxxxx> wrote:
> Now I did also a vcpus dump on domU preserved after crash if can be 
> useful for this problem probably about cpu's instructions emulation:

That's certainly a necessary step, but without telling us the instruction
under emulation (assuming there is one being emulated) by resolving
the dumped RIP values and ...

> gdbsx -c 1 64
> ===> Context for DOMID:1
> 
> --> VCPU:0
> rip:ffffffff810013a8 rsp:ffff880074803b30 flags:0000000000000092
> rax:0000000000000000 rbx:00000000fffffffe rcx:00000000ffffffff
> rdx:ffffffff81edc300 rsi:ffff880074803b3c rdi:0000000000000002
> r08:0000000000000000 r09:0000000000000002 r10:ffffffff81d0a5e0
> r11:ffff8800748038c6 r12:ffffffff81c515c0 r13:0000000000000000
> r14:ffffffff81edc300 r15:0000000000000000 rbp:ffff880074803b40
> cs:0000000000000010 ds:0000000000000000 fs:0000000000000000 
> gs:0000000000000000
> 
> Call Trace:
>     [ffffffff810013a8]
>     [ffffffff8100357e]
>     [ffffffff810035a3]
>     [ffffffff816fa43c]
>     [ffffffff81a07727]
>     [ffffffff816fa49a]
>     [ffffffff816eb027]
>     [ffffffff810e17c8]
>     [ffffffff816f7603]
>     [ffffffff81a073db]
>     [ffffffff81016f9b]

... perhaps resolving these addresses so we can associated a
meaning to them I don't think there's much we can do with this data.

Jan


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