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Date:      Mon, 11 Dec 2000 22:31:32 -0600
From:      "Michael C . Wu" <keichii@iteration.net>
To:        Greg Lehey <grog@lemis.com>
Cc:        "Michael C . Wu" <keichii@iteration.net>, FreeBSD SMP list <FreeBSD-smp@FreeBSD.org>, FreeBSD mobile Mailing List <freebsd-mobile@FreeBSD.org>
Subject:   Re: Anybody using PCMCIA cards on an SMP box?
Message-ID:  <20001211223132.C89527@peorth.iteration.net>
In-Reply-To: <20001212144744.K76343@wantadilla.lemis.com>; from grog@lemis.com on Tue, Dec 12, 2000 at 02:47:44PM %2B1030
References:  <20001211151034.L69363@wantadilla.lemis.com> <20001211221010.A89527@peorth.iteration.net> <20001212144744.K76343@wantadilla.lemis.com>

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On Tue, Dec 12, 2000 at 02:47:44PM +1030, Greg Lehey scribbled:
| On Monday, 11 December 2000 at 22:10:11 -0600, Michael C . Wu wrote:
| > On Mon, Dec 11, 2000 at 03:10:35PM +1030, Greg Lehey scribbled:
| >> I'm currently testing some PCMCIA stuff on my test box, which happens
| >> to be -CURRENT SMP.  I'm getting some strange, non-reproducible
| >> problems, and it occurs to me that maybe the PCMCIA code has never
| >> been tested on SMP.  If anybody has done this before, please let me
| >> know.
| >
| > I have the Lucent ISA card and Orinoco Gold card working on 4.2-BETA.
| > (I know it should be updated, but have not had the time to.)
| > For a couple days, this box ran -CURRENT SMPNG fine with the
| > pcmcia+wavelan working.  It was 2000102x-CURRENT.  However,
| > if I enable the SMPNG code with PCMCIA, it does not stay up longer
| > than 5 hours.
| 
| Ahh.  That seems reasonable.  Looks lie we have more debugging to do.

I should mention that this box is now running under semi-heavy load
24/7 as my do-it-all server with SMP and oldcard in 4.2-BETA.  
(i.e. load average 2.x, disk constant output 200k/sec.)

What happens when the box crashed in -CURRENT is that:
1. boot
2. running fine
3. Do anything useful that fork()'s
4. thousands of the same fork()'s spawns again and again in 
   extraordinary speed.  (I wrote a script that automatically
   runs Apache's "ad" http benchmark app.  While the script runs,
   it sends "killall -9 httpd" as fast as /bin/sh can send it.
   The machine still dies, but lives only a few minutes longer.)
5. box dies due to heavy load, hard lock, not able to
   break to ddb/gdb, no response to anything.

It ran fine with an UP kernel in 2000102x-CURRENT without 
the above problem.  

| > This is an Abit BP6 box, one that I think is the same as your box.
| 
| Yes, that's correct.  But I don't think it's related to the
| motherboard.

-- 
+------------------------------------------------------------------+
| keichii@peorth.iteration.net         | keichii@bsdconspiracy.net |
| http://peorth.iteration.net/~keichii | Yes, BSD is a conspiracy. |
+------------------------------------------------------------------+


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