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Date:      Thu, 20 Jul 95 16:50:53 MDT
From:      terry@cs.weber.edu (Terry Lambert)
To:        bde@zeta.org.au (Bruce Evans)
Cc:        hm@ernie.altona.hamburg.com, freebsd-hackers@freebsd.org
Subject:   Re: FreeBSD 2.0.5 system hangs
Message-ID:  <9507202250.AA03752@cs.weber.edu>
In-Reply-To: <199507202001.GAA06089@godzilla.zeta.org.au> from "Bruce Evans" at Jul 21, 95 06:01:23 am

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> >> > 1) in an xterm, while scrolling, the system sometimes and totally
> >> >    unreproducable just hangs. This seems to occur more often the smaller
> >> ...
> >> Move sio3 off of irq 7.
> >> 
> >> IRQ 7 is the garbage interrupt for untrapped interrupts.
> 
> >I wasn't aware of this !
> 
> Perhaps because it isn't true.  IRQ 7 is the interrupt for garbage
> trapped interrupts.
------
> Using it for sio shouldn't cause a hang.  Sio will
> ignore any extra interrupts and recover from others.
------

I wasn't aware of this !

I thought that sio did wierd things in it's probe to cause the interrupt
to be generated (a message to that effect from you a couple of days ago
is what gave me that impression).


					Terry Lambert
					terry@cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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