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Date: Sat, 16 Mar 1996 20:52:08 +0200 (EET)
Message-Id: <199603161852.UAA11323@cantina.clinet.fi>
From: Heikki Suonsivu <hsu@clinet.fi>
To: "Marc G. Fournier" <scrappy@ki.net>
Cc: freebsd-hackers@freebsd.org
In-reply-to: "Marc G. Fournier"'s message of 16 Mar 1996 05:18:25 +0200
Subject: Re: Locks.
Organization: Clinet Ltd, Espoo, Finland
References: <Pine.BSF.3.91.960315163418.2202A-100000@ki.net>
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In article <Pine.BSF.3.91.960315163418.2202A-100000@ki.net> "Marc G. Fournier" <scrappy@ki.net> writes:

   On Fri, 15 Mar 1996, J Wunsch wrote:

   > As Andrew Foster wrote:
   > 
   > > This machine will either randomly reboot or lock up.  When it locks I can
   > > switch vty's but not login (no password comes up), I can open some ports
   > > that inetd isn't control of, but I can't telnet in or anything.
   > 
   > This usually means the processes aren't context-switching anymore.  It
   > is often related to disk hangs.

	   *raises hand*

	   are there any known problems with the current drivers in -stable
   that would cause a disk hang?  I'm noticing the same problem on a system
   with 4 drives, each drive with a 32meg or larger SWAP partition on it...
   that is being *heavily* used (ie. I'm into about 38-60Meg of swap on that
   machine)

	   She usually takes about 2+ days before it hangs though, the last
   time it did it 1:40hrs ago, you could hear the disk thrashing away, I
   presume on news unbatching, and then it just hung.

Switch NCR controllers to Adapteks.  If you have any parallel printers
connected, remove them.  Helps a bit, but does not make wonders.

-- 
Heikki Suonsivu, T{ysikuu 10 C 83/02210 Espoo/FINLAND, hsu@clinet.fi
mobile +358-40-5519679 work +358-0-4375360 fax -4555276 home -8031121