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From Chuck Murcko <ch...@topsail.org>
Subject Re: [BUG] weird lockup
Date Thu, 13 Feb 1997 04:43:51 GMT
Rob Hartill wrote:
> 
> I just noticed one of my servers running a Feb 8th snapshot
> temporarily locked up. I was surfing around and hit a very slow
> URL, when I looked with 'top', the only active httpd was the root
> parent. Everything else was stuck in a "sleep" state.
> 
> Before I could attach gdb, the children came back to life.
> 
> Anyone seen this ?
> 
> This was with FreeBSD 2.1.6.this-week
> 
> DNS is off. No virtual hosts.
> 
> That particular machine wasn't very busy, ~5/s.
> During the freeze, top showed the CPU was practically idle and there
> was lots of memory free.
> 
> Netscape said it was waiting for a response which eventually arrived.
> The freeze lasted a couple of minutes (I think).
> 
It could be the old syslogd behavior. Its one and only pipe fills, and
the machine goes deaf, dumb, and blind to the net until the daemon can
clean out its buffers.
-- 
chuck
Chuck Murcko
The Topsail Group, West Chester PA USA
chuck@topsail.org

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