Re: kgdb support in vanilla 2.6.2

[George Anzinger]

Andrew Morton wrote:
> George Anzinger <george@xxxxxxxxxx> 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.

That assumes that one can do a printk and not run into a lock.  Far better 
IMNSHO is to provide a simple way to get it from gdb.  One can then even provide 
a gdb macro to print the relevant source line and its surrounds.  I my lighter 
moments I call this the comefrom macro :)  In my kgdb it would look like:

l * kgdb_info.called_from


--
George Anzinger   george@xxxxxxxxxx
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

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