Date: Sun, 19 Dec 2004 15:17:09 -0500 (EST) From: Andre Guibert de Bruet <andy@siliconlandmark.com> To: Sean McNeil <sean@mcneil.com> Cc: current@freebsd.org Subject: Re: reboot without any info Message-ID: <20041219150157.O19917@alpha.siliconlandmark.com> In-Reply-To: <1103434515.1158.10.camel@server.mcneil.com> References: <1103434515.1158.10.camel@server.mcneil.com>
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On Sat, 18 Dec 2004, Sean McNeil wrote: > This happens with a world/kernel and a portupgrade -frR totem built > Today: > > From rom a user account, I did a gdb `which totem` and then an r. This > caused a reboot. > > This brings up a couple of questions I have. > > 1) I do not get crash dumps. I have Your lack of any text at the console before the reboot indicates that a hardware problem (Overheating CPU, defective memory, overheating ata drives) is likely to be the cause of your woes. > dumpdev=/dev/ad4s1b > dumpon_enable="YES" > savecore_enable="YES" You forgot to specify dumpdir, the target directory for your core dump. I don't recall the existance of savecore_enable and it doesn't seem to be documented in /etc/defaults/rc.conf, either. Having unused options in rc.conf will, of course, not stop your dump from happening... > and in my kernel I have > > makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols > options KDB # Enable kernel debugger support. > options DDB # Support DDB. > options GDB # Support remote GDB. > > Are these options OK? Should I remove/add something to get it working? If you are suspecting bad behavior in your kernel, you probabaly should enable INVARIANTS and WITNESS as well. As I previously stated, at this point, you should probably start by examining the hardware FreeBSD is running on. In the future, I suggest that you paste the output of a `uname -a` with any bug reports as well as URL for the dmesg of the machine. It helps track things a bit better. :-) Regards, Andy | Andre Guibert de Bruet | Enterprise Software Consultant > | Silicon Landmark, LLC. | http://siliconlandmark.com/ >
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