Date: Wed, 5 Sep 2001 23:11:31 -0700 From: Rob Hudson <rob@euglug.net> To: freebsd-questions@FreeBSD.ORG Subject: 4.3 Dropping Cores Message-ID: <20010905231131.C11014@cogit8.org>
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Hello, What are the common reasons for a server to suddenly start dropping core files? This server has been running for many months, upgrading from 4.1 -> 4.2 -> 4.3. Just recently I added some extra RAM from 2 64 MB DIMMs to 1 256 MB DIMM & 1 128 MB DIMM. My first thought is that maybe one of the sticks is bad? Are there any memory integrity checkers for FreeBSD? Here is an example from my /var/log/messages: Aug 19 02:00:12 saaz /kernel: pid 563 (egrep), uid 0: exited on signal 11 (core dumped) Aug 20 00:07:19 saaz /kernel: pid 3662 (perl), uid 0: exited on signal 11 (core dumped) Aug 20 05:38:31 saaz /kernel: pid 4661 (smtpd), uid 0: exited on signal 11 (core dumped) Aug 20 06:30:00 saaz /kernel: pid 4778 (sh), uid 0: exited on signal 11 (core dumped) Aug 20 06:30:00 saaz /kernel: pid 4776 (sh), uid 0: exited on signal 11 (core dumped) Aug 20 08:00:00 saaz /kernel: pid 5074 (sh), uid 0: exited on signal 11 (core dumped) Aug 20 08:25:00 saaz /kernel: pid 5173 (sh), uid 0: exited on signal 11 (core dumped) Aug 20 08:53:58 saaz /kernel: pid 5258 (popa3d), uid 0: exited on signal 11 (core dumped) Aug 21 21:00:33 saaz /kernel: pid 10599 (perl), uid 0: exited on signal 11 (core dumped) Aug 22 07:51:51 saaz /kernel: pid 12372 (cleanup), uid 0: exited on signal 11 (core dumped) Aug 22 18:00:33 saaz /kernel: pid 613 (perl), uid 0: exited on signal 11 (core dumped) Aug 22 18:46:35 saaz /kernel: pid 723 (cleanup), uid 0: exited on signal 11 (core dumped) Aug 24 05:59:58 saaz /kernel: pid 5976 (cleanup), uid 0: exited on signal 11 (core dumped) Sep 1 05:23:39 saaz /kernel: pid 37413 (flush), uid 0: exited on signal 11 (core dumped) Sep 2 00:00:59 saaz /kernel: pid 39904 (perl), uid 0: exited on signal 11 (core dumped) Sep 3 02:00:45 saaz /kernel: pid 43679 (egrep), uid 0: exited on signal 11 (core dumped) Another clue, possibly: I was running seti@home for a little while with a nice value of 20. I'm not running any critical services and I figured I'd rack up some work units. When this ran for a while, the number of dropped cores increased a lot. I stopped running it on the server, thinking this was the problem, but I'm still getting an unusual number of core dumps. Now my thinking is that the seti@home used the system resources more and caused whatever problem my server has to come out of the woodwork more often. Thanks for any help, Rob Random Quote: ------------ Ever wake up feeling like a null pointer? -Allan Pratt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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