Date: Fri, 23 Mar 2007 13:02:21 GMT From: Rajkumar S<raj@linuxense.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/110711: no coredump after kernel panic Message-ID: <200703231302.l2ND2Lf3052418@www.freebsd.org> Resent-Message-ID: <200703231310.l2NDA4VI042006@freefall.freebsd.org>
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>Number: 110711 >Category: misc >Synopsis: no coredump after kernel panic >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Mar 23 13:10:04 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Rajkumar S >Release: FreeBSD 6.1-RELEASE #0 >Organization: Linuxense >Environment: FreeBSD safenet.linuxense.com 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sun May 7 04:32:43 UTC 2006 root@opus.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 >Description: I am trying to get core dump of a kernel panic relating to safenet driver, so that I can file a meaning full PR or even try to debug myself. But I am not getting a core dump after panic. I have gone through the developers manual and I believe I have taken care of all the usual stuff. dumpdev="/dev/ad2s1b" dumpdir="/var/crash" savecore_flags="-v -z" hw.physmem: 508989440 Device 1K-blocks Used Avail Capacity /dev/ad2s1b 768000 0 768000 0% /dev/ad2s1d 989M 7.9M 902M 1% /var My kernel panics immediately on boot up, before the disks are probed. After panic I boot with a different kernel to extract the core. But I get the following error during boot up. Checking for core dump on /dev/ad2s1b... unable to open bounds file, using 0 checking for kernel dump on device /dev/ad2s1b mediasize = 786432000 sectorsize = 512 magic mismatch on last dump header on /dev/ad2s1b savecore: no dumps found >How-To-Repeat: This happens every time. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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