Date: Sun, 4 Apr 2004 00:32:24 +0800 From: Eugene Grosbein <eugen@grosbein.pp.ru> To: Rick Updegrove <dislists@updegrove.net> Cc: freebsd-stable@freebsd.org Subject: Re: upgrade from 4.8 SMP to 4.9 SMP causes unexplained rebooting! Message-ID: <20040403163224.GA30753@grosbein.pp.ru> In-Reply-To: <406C6CD5.8050000@updegrove.net> References: <406C6CD5.8050000@updegrove.net>
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On Thu, Apr 01, 2004 at 11:26:13AM -0800, Rick Updegrove wrote: > A 4.8-STABLE machine I have been running with no problems for over 130 > days straight uptime is now having unexplained reboots AFTER upgrading > to 4.9 STABLE. > only reason I even upgraded was due to > to http://www.freebsd.org/releases/4.9R/errata.html > > Now I am sort of wishing I did not : ) I lost all the uptime and now > the unexplained rebooting... I hesitate reporting this because most > people point their fingers at the hardware. I am tempted to abandon > this machine for another but if anyone is interested in taking a look > please advise. I have similar situation. My SMP machine runs fine with pre-PAE 4.8-STABLE and freezes with 4.9-STABLE quite often. There is no kernel panic, no crashdump. So I was forced to downgrade it to 4.8-STABLE of 8 August 2003 and keep it secure by applying patches. > I have the following: > > #/etc/rc.conf > #rebooting > dumpdev=YES > savecore=YES > dumpdir="/var/crash" > > I know ths is not quite enough - I need to configure a dump devide but I > have no tape drive. Is there another way? Yes. You should have swap partition greater or equal to size of RAM and enough free space in /var/crash (using symlinks is OK). And point dumpdev to your swap like this (example!): dumpdev=/dev/ad0s1b > > I rebuilt this kernel with: > > makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols > > Is there anything else I should do? Just read section about kernel debugging in the Developer Handbook. > Right now I do not have the ability to attach a serial console to the > crashing system and set the system to serial console. And even if I did > have physical access I am not sure how to do that exactly... It should not be necesary if you manage to get crashdump. Eugene Grosbein
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