Date: Wed, 23 Apr 2008 09:07:23 -0400 From: John Baldwin <jhb@freebsd.org> To: Brooks Davis <brooks@freebsd.org> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/etc/defaults rc.conf Message-ID: <200804230907.24247.jhb@freebsd.org> In-Reply-To: <200804211817.m3LIHm97031507@repoman.freebsd.org> References: <200804211817.m3LIHm97031507@repoman.freebsd.org>
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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 > Log: > 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. -- John Baldwin
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