debugging frequent kernel panics on 8.2-RELEASE
Andriy Gapon
avg at FreeBSD.org
Wed Aug 10 15:24:32 UTC 2011
on 10/08/2011 17:22 Steven Hartland said the following:
> The kernel is compiled with:-
> options KDB # Kernel debugger related code
> options KDB_TRACE # Print a stack trace for a panic
You also have to provide an actual debugger backend like built-in DDB or a stub
for remote GDB to get online debugging. No guarantees that that would help you to
get the debugging information, but without that the chances are even slimmer.
You may also try this patch and see if it provides any improvements for post-panic
environment (dumping etc):
http://people.freebsd.org/~avg/stop_scheduler_on_panic.8.x.diff
It might also be a good idea to at least capture a screenshot of whatever
information you get on console when the panic happens.
--
Andriy Gapon
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