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Date: Fri, 24 Apr 2009 10:49:00 +0200
From: Gary Jennejohn <gary.jennejohn@freenet.de>
To: Pierre Guinoiseau <geekounet@poildetroll.net>
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Cc: pluknet <pluknet@gmail.com>, Michael Butler <imb@protected-networks.net>,
	freebsd-current@freebsd.org
Subject: Re: 'sysctl -a | less' crashes -current
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On Fri, 24 Apr 2009 09:51:58 +0200
Pierre Guinoiseau <geekounet@poildetroll.net> wrote:

> The same from 18th.
> 
> pluknet wrote:
> > 2009/4/24 Daniel O'Connor <doconnor@gsoft.com.au>:
> >> On Fri, 24 Apr 2009, Michael Butler wrote:
> >>> I can't seem to get a dump from this :-( The noted command either
> >>> hangs or reboots a kernel built on April 24th.
> >>>
> >>> I'll rebuild with KDB to see what else I can find out ..
> >> Works OK on mine from 5th Apr. (to give you a bookend if you're binary
> >> searching :)
> >>
> > 
> > Even one from 16th does okey.
> > 
> 

[sysctl -a causes a crash dump]
I saw this yesterday also.  It turned out that I had an old kqemu.ko
loaded.  Removing it eliminated the crash.

If you're using modules, especially from ports, then make sure they're
up-to-date with your kernel sources.

I got the idea for this from a mail which Robert Watson posted.

---
Gary Jennejohn