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SubjectRe: kgdb support in vanilla 2.6.2
Andi Kleen wrote:
> On Tue, Mar 02, 2004 at 01:27:51PM -0800, Andrew Morton wrote:
>>George Anzinger <> wrote:
>>> Often it is not clear just why we are in the stub, given that
>>>we trap such things as kernel page faults, NMI watchdog, BUG macros and such.
>>Yes, that can be confusing. A little printk on the console prior to
>>entering the debugger would be nice.
> What I did for kdb and panic some time ago was to flash the keyboard
> lights. If you use a unique frequency (different from kdb
> and from panic) it works quite nicely.

Assuming a key board and a clear (no spin locks) path to it. Still it only says
we are in kgdb, now why.

George Anzinger
Preemption patch:

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