Date: Thu, 8 Mar 2001 14:49:35 -0700 (MST) From: "Joe Loughry" <loughry@qwest.net> To: henryammons@yahoo.com, questions@freebsd.org Subject: Re: Intermittant freezing problems Message-ID: <200103082149.OAA19123@miranda.dnvr.uswest.net>
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I'm afraid I can't help with your problem directly, but I would like to report something similar that has been happening to my 3.5-STABLE box ever since it was a 3.2-RELEASE :) The problem manifests as unexpected freeze-ups, at random intervals, for random amounts of time, usually several times a day. If left alone, the system will eventually pick up where it left off as if nothing happened (although the time-of-day clock will be wrong, because it stopped along with everything else). EVERYTHING is frozen--the machine does not respond to the console keyboard, tty ports, or pings. The syscons cursor stops blinking. It does respond to the reset button, however. If I leave it alone long enough, it comes out if this coma after anywhere from 10 seconds to more than 14 hours. Time of occurrence and duration are random--I've graphed them from data collected by another machine that continually pings the troublesome host every 10 seconds to see if it is alive. Nearly every component except the motherboard and the IDE controller has been replaced (the IDE controller is integrated into the motherboard). I suppose I should try replacing that next. The machine is a Pentium Pro 200 (underclocked to 150 MHz in an attempt to see if it was a heat-related problem) with 128 MB of Kingston SIMM memory. Thinking it was a heat issue, I monitored the CPU heatsink temperature with a thermocouple and installed additional fans and ducting until the temperature stayed below 30 celsius all the time. I turned off the distributed.net client because I thought that might be the trouble. I turned off the syscons screen saver. The machine doesn't run X, and the kernel has been configured to include the minimum required by this hardware. Replacing the video card, serial ports, Ethernet card, and processor all have not helped. There is never an error message on the console or in the logs...and I can't get a kernel debug trace because when it happens, the machine is completely nonresponsive. It only happens on this one machine. I think I'm going to cure it by installing a Pentium III, some DIMMs, a Fast Ethernet card, and a 50 GB SCSI disk drive.... -Joe To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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