Message-ID: <3F793EB8.7010605@aitel.hist.no>
Date: Tue, 30 Sep 2003 10:28:40 +0200
From: Helge Hafting <helgehaf@aitel.hist.no>
Organization: AITeL, HiST
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To: Valdis.Kletnieks@vt.edu
CC: Linus Torvalds <torvalds@osdl.org>,
       Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: -mregparm=3 (was  Re: [PATCH] i386 do_machine_check() is redundant.
References: <Pine.LNX.4.44.0309291142430.3626-100000@home.osdl.org> <200309291954.h8TJsm6p002210@turing-police.cc.vt.edu>
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Valdis.Kletnieks@vt.edu wrote:

> Quite correct - even after recompiling the sourced portions of the NVidia
> driver, it dies a horrid death on 'insmod' when the closed-source portion
> passes a parameter on the stack and the open side expects the value in a
> register, and follows the register value to a quick death....
> 
Nvidia can fix this easily. Either by having several versions of
their closed-source thing, or by having a open "interface" that
uses nvidia's calling convention for talking to their proprietary
binary code, and whatever the kernel uses for talking to the kernel.
That's the price of binary modules -
One extra level of indirection, or a bunch of different modules.
Of course there are plenty of other cards without
such problems.

Helge Hafting

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