Date: Sun, 6 Oct 2002 21:11:10 -0400 From: abe <abe@informationwave.net> To: questions@freebsd.org Subject: fatal trap 12, system crashes Message-ID: <20021007011110.GA66840@dipole.informationwave.net>
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Hello, I've got a rather odd issue, but not unique from what I've seen on othe= r threads (whose solutions unfortunately did not work). I have had a machi= ne running in a datacenter for 7 months if not more without problems, and 1= .5 years prior to that without problems as well. The other night, suddenly= the machine rebooted and came back up with a panic. This happened immedia= tely after rc.firewall was run it appeared. I spent about 4 hours in the d= atacenter trying to diagnose the issue and had no luck so brought the machi= ne home with me that night. I've been working on it for about a week now t= rying various methods of troubleshooting and haven't had any luck. I also = tried to get a backtrace but that's not turning out so well either. It see= ms even with a debugging kernel and the correct options set in rc.conf for = dumpdev and savecore it will produce no usable output, if any. /var/crash = is empty aside from 'minfree'. With all of that said, as it may be obvious= already this message is going to be a bit lengthy as I am going to try to = provide as much detail as possible considering the lack of a backtrace. I = have tried several hardware configurations, including brand new hardware. = Two different CPUs (AMD thunderbird 700 and 750mhz), 7 different memory mod= ules all tested via memtest with 12 iterations at least with no errors, 4 d= ifferent network cards: 3com 3905b/c, dlink (rtl8129), and a netgear. I ha= ve used an abit kt7-raid, asus a7a 266, and another abit board. I have use= d 4 different hard disks, 2 western digitals, both brand new, and 2 maxtors= , fairly new. I have also swapped out power supplies, cables, network equi= pment (switch, direct via crossover), etc. That's an idea of what I've don= e thus far with hardware, and to sum that up we can think of the hardware c= ollectively as three different machines. As far as installation media goes= , I've tried via FTP and cdrom. The systems I've used, are 4.5-RELEASE, 4.= 5-RELEASE-p20, 4.6.2-p2. I've reinstalled several times attempting to spot= an error in installation or my methods. I've changed my rules for IPFW to= very primitive ones to test, and had no luck. The minute after loading th= em, and then attempting to communicate with any type of network service, th= e machine panics. I have a video which is approximately 2 megs in size, and= a photo of the error and it occuring. The video is at http://dipole.infor= mationwave.net/~abe/crash.mpg, and the photo is http://dipole.informationwa= ve.net/~abe/fbsd.jpg. If anyone has any ideas as to what could be causing = this, or a solution, that'd be great. Also any other information that woul= d assist in solving this issue that I haven't already provided will be give= n if requested. Any feedback would be greatly appreciated. Regards, Abe =20 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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