[4.11] sysctl reports garbage

Marc Santhoff M.Santhoff at t-online.de
Wed Apr 27 11:54:27 PDT 2005

Am Mi, den 27.04.2005 schrieb Marc Olzheim um 20:31:
> On Wed, Apr 27, 2005 at 08:24:36PM +0200, Marc Santhoff wrote:
> > > That is 'kern.msgbuf' ;-)
> > 
> > Hm, I've never seen such a verbose output before.
> > 
> > Has anything changed in that area? And why does it still occur after a
> > reboot, normally buffers are only temporarily valid(at least I thought
> > so until a few minutes)?
> It's a fresh buffer every reboot. In you mail, it contained the last
> part of your startup messages.
> Everything that gets written to /dev/console is cycled through the
> buffer and the last $(sysctl kern.consmsgbuf_size) KB is made accessible
> via "sysctl kern.msgbuf".

I still don't understand completly. In the file made like this:

sysctl -a > garbage.txt

there are the messages of at least three reboot cycles.

The only explanation would be "dmesg" using this message buffer for it's
output, that's what I used immediately before creating the text file.


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