cvs commit: src/etc/defaults rc.conf
jhb at freebsd.org
Wed Apr 23 13:19:47 UTC 2008
On Monday 21 April 2008 02:17:48 pm Brooks Davis wrote:
> brooks 2008-04-21 18:17:48 UTC
> FreeBSD src repository
> Modified files:
> etc/defaults rc.conf
> Change the default of ddb_enable to YES so we default to generating
> textdumps on panic. This means you get a potentially useful dump even if
> your system is running X when you panic.
Note that for many panics (such as page faults due to a NULL pointer
dereference) the enhanced stack handling ability of kgdb (ability to examine
local variables in stack frames, etc.) is a lot more useful than ddb and now
those panics won't be nearly as easy to debug via textdumps.
As far as panics in X are concerned, that is a bug in the console driver that
it doesn't just abort ddb already and write out a dump and reboot. I've been
disabling ddb on panics via tunable as a workaround on my laptop to get
crashdumps during panics in X.
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