Re: [PATCH 0/5] x86/dumpstack: Cleanups and user opcode bytes Code: section

[Andy Lutomirski]

On Mon, Feb 19, 2018 at 8:28 PM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> From: Borislav Petkov <bp@xxxxxxx>
>
> Hi,
>
> so I've been thinking about doing this for a while now: be able to dump
> the opcode bytes around the user rIP just like we do for kernel faults.
>
> Why?
>
> See patch 5's commit message. That's why I've marked it RFC.
>
> The rest is cleanups: we're copying the opcodes byte-by-byte and that's
> just wasteful.

Maybe this series already has this side-effect, but I'd really love to
see oopses show the code bytes for each kernel entry, not just the
innermode one.  We already dump full regs including RIP -- adding
Code: should be easy and would be very helpful.