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From: Michael Smith <msmith@atrad.adelaide.edu.au>
Message-Id: <199606040222.LAA03656@genesis.atrad.adelaide.edu.au>
Subject: Re: Laptop hardware FOUND
To: nate@sri.MT.net (Nate Williams)
Date: Tue, 4 Jun 1996 11:52:14 +0930 (CST)
Cc: msmith@atrad.adelaide.edu.au, hardware@FreeBSD.ORG, mobile@FreeBSD.ORG
In-Reply-To: <199606031442.IAA12911@rocky.sri.MT.net> from "Nate Williams" at Jun 3, 96 08:42:39 am
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Nate Williams stands accused of saying:
> 
> Cool.  Hosokawa already responded to the unknown event code problems,
> but the hang is a new one.  It may be the 'WD-interrupt' bug, which I
> see quite often.  Basically, our IDE driver is single threaded, so if
> you miss an interrupt it'll wait forever for it rather than timing out.

... so would adding a timeout or a missed-interrupt kicker be a good idea?
(Something like the one in the 'sio' driver that catches lost serial
 interrupts?)

> Unfortunately, because of this bug it's *really* hard to debug other
> parts of the system since you never know which bug is triggered.

The hang _must_ be something in the pccard code; if I eject the card before
I close the lid, it suspends OK.  I can reinsert it after I resume and
all is well again.

It's not edsuspend :

static void
edsuspend(struct pccard_dev *dp)
{
        printf("ed%d: suspending\n", dp->isahd.id_unit);
}

... I'm guessing that it probably has to do with powering the slot down.  I
need to spend some time with it when I'm not running a fever or being
pressured to do Real Work.  I may get a chance tonight if I can find some
appropriate drugs to kill the pain.

> Nate

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[