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Date:      Fri, 07 Jun 2002 09:52:32 -0700
From:      Lars Eggert <larse@ISI.EDU>
To:        frank@exit.com
Cc:        stable@freebsd.org, hackers@freebsd.org
Subject:   Re: Numerous hard hangs on TWO different ASUS P4T-E w/P4 1.6G
Message-ID:  <3D00E4D0.90007@isi.edu>
References:  <200206071632.g57GWlFU099531@realtime.exit.com>

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Frank Mayhar wrote:
> I see very common short-term hangs, a few seconds to less than a minute.
> The mouse and keyboard stop responding, X stops updating and everything
> just pauses, the whole system (including the network).  It then starts
> back up, often dropping keyboard or mouse data.  Once in a while (not
> sure how often, but at least every couple of days) it hangs solid and
> never comes back.  Totally unresponsive.  This invariably requires a
> hard reset.
> 
> This is a busy system.  Near-constant load on the network (some 40-100KB/s),
> lots of disk accesses.  Seems worse when network and/or SCSI load is high.

I've seen these, too, on a dual-P3 Dell Precision 420. Under high loads 
(buildworld), I get the exact same short-time freezes that sometimes 
recover, and sometimes lockup the machine solid.

We have the same sound card (and network card), and in my case, not 
playing audio during high loads solves the problem - are you using your 
audio device at all when this happens?

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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