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SubjectRe: [RFC PATCH -tip 00/16] in-kernel x86 disassember
On 04/03/2012 12:31 AM, Ingo Molnar wrote:
>
> The existing oops setup knob is an early_param() in
> kernel/panic.c, "oops=".
>
> I'd suggesting extending that in an obvious way. Currently the
> only option that exists is "oops=panic", so a comma delimited
> list of attributes would be the natural extension, allowing:
>
> oops=panic
> oops=panic,disasm
> oops=disasm
>
> Detail: it should do a strncmp(5, str, "disas"), so that every
> usual variant works: oops=disasm, oops=disassemble, etc.
>
>> [...] In other words, if *you* are debugging your own kernel,
>> and don't expect to ship oopses off to someone else.
>
> Probably a DEBUG .config option as well, so that distros can
> enable it. OTOH, CONFIG_CMDLINE allows the setting of such
> parameters as well.
>

I would say there should be a CONFIG option to build it in, but I'd like
to see an explicit command-line option to enable it.

I *do not* want to see this in distro kernels. That is all downside.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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