Re: [PATCH -tip tracing/kprobes 3/6] kprobes/x86: Fix to add __kprobesto in-kernel fault handing functions

From: Masami Hiramatsu
Date: Fri Sep 04 2009 - 18:26:30 EST

Frederic Weisbecker wrote:
On Wed, Sep 02, 2009 at 08:58:05AM -0400, Masami Hiramatsu wrote:
Frederic Weisbecker wrote:
BTW, after your patchset:

TEST posttest
Building modules, stage 2.
Error: c0101038: 2e a1 f8 b0 9e c0 mov %cs:0xc09eb0f8,%eax
Error: objdump says 6 bytes, but insn_get_length() says 10 (attr:40000)
make[1]: *** [posttest] Erreur 2
make: *** [bzImage] Erreur 2
make: *** Attente des tÃches non terminÃes....
MODPOST 4 modules

I'm cross compiling from 64 to 32 using:

make ARCH=x86

I've attached my config.

Aah, you might miss an important patch :D

Thank you,

Well, even with this patch I have this problem occuring with
make ARCH=x86

Error: c125d65d: 0f 6f 02 movq (%edx),%mm0
Error: objdump says 3 bytes, but insn_get_length() says 2 (attr:0)
make[1]: *** [posttest] Erreur 2
make: *** [bzImage] Erreur 2

Hmm, may be that's because it doesn't support mmx instructions.
The whole patchset is on


Config and make V=1 log attached.

Aah, Indeed. It's time to add MMX/SSE support on x86 insn decoder.

Thank you for reporting!

Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat@xxxxxxxxxx

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