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Date: Thu, 22 Feb 2007 13:56:44 +0200
From: Alexander Shikoff <minotaur@crete.org.ua>
To: freebsd-stable@freebsd.org
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Sender: Alexander Shikoff <minotaur@padonki.org.ua>
Subject: Cannot obtain kernel dump in /var/crash
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Hello,

I've discovered reproducable kernel panic but I cannot obtain a dump.

I have in rc.conf:

dumpdev="/dev/ad2s1b"
savecore_flags="-f"

... and in kernel configuration:

options         KDB
options         DDB
options         KDB_UNATTENDED
makeoptions     DEBUG=-g                # Build kernel with gdb(1) debug symbols

My RAM size is 768 MB and swap size is 1024 MB.

When rebooting after a crash I see in console:
Feb 22 13:40:41 crete savecore: unable to force dump - bad magic
Feb 22 13:40:41 crete savecore: no dumps found

Any suggestions? Thanks.

-- 
Kind Regards,	Alexander Shikoff
minotaur@crete.org.ua
Mob.: +380 67 946 31 49