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From: Joe Greco <jgreco@brasil.moneng.mei.com>
Message-Id: <199511281754.LAA12778@brasil.moneng.mei.com>
Subject: Re: 16 ports Boca - anyone using it?
To: msmith@atrad.adelaide.edu.au (Michael Smith)
Date: Tue, 28 Nov 1995 11:54:20 -0600 (CST)
Cc: rich@spirit.com.au, hsu@clinet.fi, msmith@atrad.adelaide.edu.au,
        freebsd-hackers@freefall.freebsd.org
In-Reply-To: <199511280856.IAA07993@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Nov 28, 95 08:56:16 am
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> Joe Greco stands accused of saying:
> Yecch.

I've used that word a lot lately, myself  :-)

> You could possibly add some code to siopoll() to check the interrupt status
> of open ports, and spew a console printf if it found a port with pending
> interrupt status.  Something like :

Ok, I am installing:

wye# diff -c sio.c{.fcs,}
*** sio.c.fcs   Tue May 30 03:03:06 1995
--- sio.c       Tue Nov 28 11:50:18 1995
***************
*** 1570,1575 ****
--- 1570,1581 ----
                }
                if (incc <= 0 || !(tp->t_state & TS_ISOPEN))
                        continue;
+ 
+               /* Bruce Evans / Michael Smith debug patch.. */
+               iir = inb(com->int_id_port) & 0x07;
+               if ((iir & 1) == 0)
+                       log(LOG_DEBUG, "sio%d: IRQ pending (%d) in poll\n", com->unit, iir);
+ 
                /*
                 * XXX only do this when we bypass ttyinput.
                 */

and I will report what happens when it happens.

Thanks guys, I appreciate the help from people who know what the code is
doing...  ;-)

... Joe

-------------------------------------------------------------------------------
Joe Greco - Systems Administrator			      jgreco@ns.sol.net
Solaria Public Access UNIX - Milwaukee, WI			   414/342-4847