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Date: Thu, 17 Jun 2004 08:41:32 -0700
From: "Randy.Dunlap" <rddunlap@osdl.org>
To: bmarsh@bmarsh.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: Use of Moxa serial card with SMP kernels
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On Thu, 17 Jun 2004 11:12:39 -0400 Bruce Marshall wrote:

| Moxa serial card option not available when requesting an SMP kernel  (2.6.7)
| 
| I was told back when 2.6.4 was new that the selection of a Moxa serial card 
| was not possible if an SMP kernel was selected.  I used the work-around of 
| not using an SMP kernel.
| 
| My question:   Is this a permanent problem which will never be fixed or a 
| temporary situation?

It's permanent until someone takes the time and trouble to fix it.

Both Moxa serial drivers (moxa & mxser) are BROKEN_ON_SMP because
they use cli() to disable interrupts for critical sections.
See Documentation/cli-sti-removal.txt for details.
They will need some acceptable modern form of protection there,

Is anyone working on this?  not that I've heard of.
Have you tried this email address:
Copyright (C) 1999-2000  Moxa Technologies (support@moxa.com.tw).

Is anyone out there motivated to fix this?  This is Bruce's real
question, I believe.

--
~Randy