From owner-freebsd-geom@FreeBSD.ORG  Tue Jun 20 12:10:37 2006
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Date: Tue, 20 Jun 2006 15:11:45 +0300 (EEST)
From: Ivan Khilko <ivan@ins.dn.ua>
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Subject: Problem with dumpon...
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Hallo.

     I have server (Pentium III) with FreeBSD-5.5 on it.  On this server I
configure gmirror RAID 1 on IDE HDD:

kernel: ad0: 76319MB <ST3802110A/3.AAD> [155061/16/63] at ata0-master UDMA66
kernel: ad2: 76319MB <ST3802110A/3.AAD> [155061/16/63] at ata1-master UDMA66

All work correct, but sometimes server rebooting. Background file system checks
off on this server. I can't find cause of this rebooting. Server work on
unattended room. When I come to this room I see only: "Automatic file system
check failed...". When I configured crashdump, kernel say:
  dumpon: ioctl(DIOCSKERNELDUMP): Operation not supported
(swap device on /dev/mirror/gm0s1b)
Logfile (syslogd: *.* /var/log/messages) not have any error messages.

How I may determinate cause of problem?



Ivan.
e-mail:ivan@ins.dn.ua