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Date:      Wed, 05 Aug 1998 17:26:58 -0700
From:      Mike Smith <mike@smith.net.au>
To:        Brett Glass <brett@lariat.org>
Cc:        hackers@FreeBSD.ORG, bugs@FreeBSD.ORG
Subject:   Re: More on the spontaneous crashes 
Message-ID:  <199808060026.RAA01905@dingo.cdrom.com>
In-Reply-To: Your message of "Wed, 05 Aug 1998 17:06:16 MDT." <199808052306.RAA00494@lariat.lariat.org> 

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> As mentioned in earlier messages, we're still trying to do a backup and
> getting a crash every time. Our backup routine works by creating a command
> file which is redirected into FTP. The command that fails is
> 
> put "|dump 0uf - /usr | gzip -9" usr.$starttime.gz
> 
> (where $starttime is the starting time of the backup; it's replaced with a
> numerical UNIX date as the command file is created). 
> 
> As you can see, FTP is accepting input from dump, via gzip, and sending it
> to the named file on the other machine. This is done over a separate LAN
> segment for security.
> 
> The screen that flashes, just before the reboot, says that there was a GP
> fault in the kernel. I can't print the screen or otherwise save it, and it
> goes by very quickly -- faster than I can write down the information. (I've
> considered grabbing a camera to take a picture.)
> 
> How can we nail this bug and get it fixed? We need to do backups, and
> Heaven knows that if this userland stuff causes a crash, other things will
> too.

Put 'options DDB' in your kernel config.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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