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From: J Wunsch <j@uriah.heep.sax.de>
Message-Id: <199507250537.HAA07860@uriah.heep.sax.de>
Subject: Re: !!! dumpon doesnt't work !!!
To: graichen@omega.physik.fu-berlin.de (Thomas Graichen)
Date: Tue, 25 Jul 1995 07:37:51 +0200 (MET DST)
Cc: bugs@FreeBSD.org
In-Reply-To: <9507241125.AA06490@omega.physik.fu-berlin.de> from "Thomas Graichen" at Jul 24, 95 01:25:32 pm
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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As Thomas Graichen wrote:
> 
> ... i try to get a kernel core dump to give you more information about another
> problem i mailed to bugs@... - but i'm unable to get the system dump core - i
> tried:
> 
>   dumpon /dev/wd0b
> 
>   dumpon /dev/wd0s4b
> 
> in rc before savecore - i also tried 
> 
>  config kernel root on wd0 dumps on wd0

Both ways are supposed to get you a core dump (the dumpon variant will
only work after you've also swapon'ed that partition, from my
experience).

If your system is stalling, this is a problem somewhere in the disk
driver or related code, not with the dumpon command.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)