Date: Thu, 2 Mar 2006 09:26:16 +0700 (ICT) From: Olivier Nicole <on@cs.ait.ac.th> To: freebsd-questions@freebsd.org Subject: How to do a kernel dump? Message-ID: <200603020226.k222QGRP099167@banyan.cs.ait.ac.th>
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Hi, I'd like to get a kernel dump when the machine panics. I set-up dumpdev="/dev/rda0s1b" in /etc/rc.conf. My swap is: amanda<on>41: swapinfo Device 1K-blocks Used Avail Capacity Type /dev/rda0s1b 1048448 0 1048448 0% Interleaved My memory is only 256 MB, so the swap is large enough to keep up to 4 dumps. But still no dump, no image created in /var/crash, the system reboots in multi-user mode and period. When I try savecore by hand I get: savecore: reboot after panic: page fault savecore: system went down at Thu Mar 2 01:13:26 2006 savecore: no dump, not enough free space on device (235544 available, need 264924) How should I understand that? Is it because I use the raw device (that is not clear in the handbook). System is: FreeBSD amanda.cs.ait.ac.th 4.11-RELEASE-p14 FreeBSD 4.11-RELEASE-p14 #5: Tue Feb 28 16:07:07 ICT 2006 root@amanda.cs.ait.ac.th:/usr/obj/usr/src/sys/SMALL i386 Thanks in advance, Olivier
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