From: Doug McNaught <doug@mcnaught.org>
To: Russell Miller <rmiller@duskglow.com>
Cc: Kurt Wall <kwall@kurtwerks.com>, linux-kernel@vger.kernel.org
Subject: Re: is killing zombies possible w/o a reboot?
Date: Wed, 03 Nov 2004 20:38:48 -0500 [thread overview]
Message-ID: <87654m4clz.fsf@asmodeus.mcnaught.org> (raw)
In-Reply-To: <200411031901.28977.rmiller@duskglow.com> (Russell Miller's message of "Wed, 3 Nov 2004 20:01:28 -0500")
Russell Miller <rmiller@duskglow.com> writes:
> This brings up another question I've had since reading the documentation on
> later pentium-class chips:
>
> why are only rings 0 and 3 used in linux?
Because the "traditional" Unix privilege model only has two levels,
and Linux runs on many architectures, most of which have only two
privilege levels (the 68000 called them "user" and "supervisor").
Special-casing x86 is possible but probably wouldn't be worth it.
-Doug
next prev parent reply other threads:[~2004-11-04 1:39 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-03 12:51 is killing zombies possible w/o a reboot? Gene Heskett
2004-11-03 14:33 ` bert hubert
2004-11-03 14:49 ` Måns Rullgård
2004-11-03 15:25 ` DervishD
2004-11-03 15:25 ` Måns Rullgård
2004-11-03 17:49 ` DervishD
2004-11-03 16:47 ` Gene Heskett
2004-11-03 17:44 ` DervishD
2004-11-03 18:53 ` Gene Heskett
2004-11-03 19:01 ` Doug McNaught
2004-11-03 19:03 ` Måns Rullgård
2004-11-03 19:24 ` Gene Heskett
2004-11-03 19:33 ` Doug McNaught
2004-11-03 19:34 ` Måns Rullgård
2004-11-03 19:06 ` Valdis.Kletnieks
2004-11-03 19:26 ` Gene Heskett
2004-11-03 19:33 ` Valdis.Kletnieks
2004-11-03 20:09 ` Gene Heskett
2004-11-04 19:24 ` Bill Davidsen
2004-11-03 19:42 ` DervishD
2004-11-03 23:12 ` Bill Davidsen
2004-11-04 10:26 ` DervishD
2004-11-04 14:23 ` Paul Slootman
2004-11-04 14:56 ` Gene Heskett
2004-11-04 18:24 ` DervishD
2004-11-04 19:22 ` Bill Davidsen
2004-11-04 20:53 ` DervishD
2004-11-03 19:26 ` DervishD
2004-11-03 20:18 ` Gene Heskett
2004-11-03 22:15 ` Jim Nelson
2004-11-03 22:44 ` Russell Miller
2004-11-03 23:03 ` Doug McNaught
2004-11-03 23:33 ` Russell Miller
2004-11-03 23:47 ` Mathieu Segaud
2004-11-03 23:56 ` Russell Miller
2004-11-04 0:05 ` Mathieu Segaud
2004-11-04 6:39 ` Denis Vlasenko
2004-11-05 2:38 ` Elladan
2004-11-05 3:10 ` Tim Connors
2004-11-05 3:17 ` Russell Miller
2004-11-05 4:38 ` Elladan
2004-11-05 5:00 ` Kyle Moffett
2004-11-04 20:06 ` Bill Davidsen
2004-11-03 23:06 ` vlobanov
2004-11-04 10:04 ` Helge Hafting
2004-11-04 17:16 ` Alex Bennee
2004-11-04 16:30 ` Pedro Venda (SYSADM)
2004-11-04 22:28 ` Helge Hafting
2004-11-03 23:07 ` Bill Davidsen
2004-11-04 1:19 ` Michael Clark
2004-11-04 16:01 ` kernel
2004-11-04 16:18 ` Gene Heskett
2004-11-04 16:47 ` kernel
2004-11-04 17:58 ` Gene Heskett
2004-11-03 22:58 ` Bill Davidsen
2004-11-04 10:23 ` DervishD
2004-11-04 19:32 ` Bill Davidsen
2004-11-04 21:11 ` DervishD
2004-11-09 23:31 ` Bill Davidsen
2004-11-10 9:11 ` DervishD
2004-11-03 23:18 ` Adam Heath
2004-11-03 16:38 ` Gene Heskett
2004-11-03 16:24 ` Gene Heskett
2004-11-03 16:46 ` linux-os
2004-11-03 19:12 ` Gene Heskett
2004-11-03 19:56 ` Måns Rullgård
2004-11-03 20:13 ` Helge Hafting
2004-11-03 20:40 ` Gene Heskett
2004-11-04 0:43 ` Kurt Wall
2004-11-04 1:01 ` Russell Miller
2004-11-04 1:38 ` Doug McNaught [this message]
2004-11-04 1:45 ` Russell Miller
2004-11-04 1:56 ` Doug McNaught
2004-11-04 1:59 ` Mitchell Blank Jr
2004-11-04 20:10 ` Bill Davidsen
2004-11-04 10:07 ` Matthias Andree
2004-11-04 22:31 ` Peter Chubb
2004-11-04 23:33 ` Benno
2004-11-03 20:48 ` Tom Felker
2004-11-03 21:08 ` Gene Heskett
2004-11-04 7:19 ` Jan Knutar
2004-11-04 11:57 ` Gene Heskett
2004-11-04 12:12 ` Jan Knutar
2004-11-04 12:18 ` Gene Heskett
2004-11-04 12:29 ` Jan Knutar
2004-11-04 13:56 ` Gene Heskett
2004-11-04 12:39 ` Gene Heskett
2004-11-04 13:01 ` Ian Campbell
2004-11-04 14:07 ` Gene Heskett
2004-11-04 14:24 ` Ian Campbell
2004-11-04 15:10 ` Gene Heskett
2004-11-04 14:26 ` DervishD
2004-11-04 15:13 ` Gene Heskett
2004-11-04 13:10 ` Doug McNaught
2004-11-04 14:11 ` Gene Heskett
2004-11-04 14:42 ` tlaurent
2004-11-04 15:14 ` Gene Heskett
2004-11-04 20:18 ` Bill Davidsen
2004-11-05 0:29 ` Gene Heskett
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