From: Greg Stark <gsstark@mit.edu>
To: Andi Kleen <ak@colin2.muc.de>
Cc: Martin Pool <mbp@sourcefrog.net>, Andi Kleen <ak@muc.de>,
linux-kernel@vger.kernel.org
Subject: Re: KDB in the mainstream 2.4.x kernels?
Date: 25 Aug 2003 08:16:41 -0400 [thread overview]
Message-ID: <87y8xiexue.fsf@stark.dyndns.tv> (raw)
In-Reply-To: <20030813110453.GA26019@colin2.muc.de>
Andi Kleen <ak@colin2.muc.de> writes:
> Only the X server can switch away, because only it knows how
> to talk to the graphic chipset. And running user space here is
> far too risky.
There was a proposal a long ways back to allow X to download instructions to
the kernel on how to restore the video mode. The proposal was to code the
instructions as a forth program that frobbed registers appropriately. The
kernel would have a small forth interpretor to run it. Then switching
resolutions could happen safely in the kernel.
--
greg
next prev parent reply other threads:[~2003-08-25 12:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <aJIn.3mj.15@gated-at.bofh.it>
2003-07-18 20:43 ` KDB in the mainstream 2.4.x kernels? Andi Kleen
2003-07-19 0:31 ` linas
2003-07-19 0:57 ` Andi Kleen
2003-07-20 12:55 ` Keith Owens
2003-07-20 13:31 ` David S. Miller
2003-07-20 22:27 ` Keith Owens
2003-07-21 15:06 ` Andi Kleen
2003-07-29 19:44 ` Robin Holt
2003-08-13 4:40 ` Martin Pool
2003-08-13 11:04 ` Andi Kleen
2003-08-25 12:16 ` Greg Stark [this message]
2003-08-25 16:23 ` Andi Kleen
2003-08-26 13:39 ` Greg Stark
2003-08-27 13:49 ` Alan Cox
2003-08-30 10:35 ` Pavel Machek
2003-09-02 20:40 Tolentino, Matthew E
-- strict thread matches above, loose matches on Subject: below --
2003-08-28 17:08 Tolentino, Matthew E
2003-08-28 20:24 ` Alan Cox
2003-07-18 20:06 linas
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