Date: Tue, 5 Jul 2005 10:03:01 -0700 From: Casey Scott <casey@phantombsd.org> To: freebsd-questions@freebsd.org Cc: Chris Burchell <cburchell@muttart.org> Subject: Re: How to diagnose crashes? Message-ID: <200507051003.01890.casey@phantombsd.org> In-Reply-To: <AF33154333460E439B317830E50C10490D625D@tmfsrv01.muttart.org> References: <AF33154333460E439B317830E50C10490D625D@tmfsrv01.muttart.org>
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> My FreeBSD 5.3-RELEASE box seems to be spontaneously restarting from > time to time. > > I have not yet contacted the colo facility to determine if it's a power > issue, but wonder if anyone can help me out in how to diagnose whether > or not it's a server crash and not a power problem. > > Where should I look for tips / hints that might help me determine the > cause of a crash that forced a reboot? > > Thanks, > Chris > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" Did the reboot occur during a high network load? In my case, the reboots seem to be related to the kernel TCP/IP stack. The box reboots under network load way too often. I don't suspect any other hard problem with it. It handle kernel builds and makeworlds w/o incident. MemTest86 did not find any problems with the memory. I have seen some other posts on this list about this issue. The posters thought it was a problem with SMP kernels. I compiled a uniproc kernel and just had another spontaneous reboot last night! After looking for .core, you may want to capture /dev/console messages to a log file. I am assuming since the box is colo'd, you don't have console access. You may still miss some output though. Casey
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