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Message-ID: <47BD5360.5070706@debian.org>
Date:	Thu, 21 Feb 2008 11:33:04 +0100
From:	Simon Richter <sjr@...ian.org>
To:	Tilman Schmidt <tilman@...p.cc>
Cc:	Gregory Nietsky <gregory@...worksentry.co.za>,
	Jeff Garzik <jeff@...zik.org>, kkeil@...e.de,
	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	isdn4linux@...tserv.isdn4linux.de, Sam Ravnborg <sam@...nborg.org>
Subject: Re: Plans for mISDN? Was: [PATCH 00/14] [ISDN] ...

Hi,

Tilman Schmidt wrote:

> mISDN has two problems, which are of course interrelated:

mISDN has one problem that is even bigger than these: the kernel oopses 
if modules aren't loaded in the right order. misdn-init works around 
that, but if it doesn't work for some reason (and I can think of 
multiple here), the user is left with a kernel that oopses during 
hardware discovery and never gets to a stage where this can be 
rectified, as almost all distributions now have hardware discovery 
before the first opportunity to get a shell. At least these were my 
experiences the last time I tried it on my test box.

This is the reason I've kept mISDN out of the last two Debian stable 
releases, despite users' requests.

When a hardware driver module is loaded, it should only do basic 
hardware initialisation; it is certainly not necessary to set up the 
entire stack (or even decide on a protocol, which currently needs to be 
handed in via module parameter -- before userland code is there that 
wants to talk to the hardware, there is no reason to have the hardware 
active).

    Simon
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