From: Peter Samuelson <peter@cadcamlab.org>
To: root@chaos.analogic.com
Cc: Matthew Vanecek <linux4us@home.com>,
Rainer Mager <rmager@vgkk.com>,
linux-kernel@vger.kernel.org
Subject: Re: Signal 11
Date: Fri, 8 Dec 2000 11:40:43 -0600 (CST) [thread overview]
Message-ID: <14897.7451.710204.633241@wire.cadcamlab.org> (raw)
In-Reply-To: <3A310E18.DD23D416@home.com> <Pine.LNX.3.95.1001208113945.1500A-100000@chaos.analogic.com>
[Dick Johnson]
> > > char main[]={0xf0,0x0f,0xc0,0xc8}; /* try also on NT (: */
> > me2v@reliant DRFDecoder $ ./op
> > Illegal instruction (core dumped)
>
> Yep. And on early Pentinums, the ones with the "f00f" bug, it would
> lock the machine tighter than a witches crotch. Ooops, not
> politically correct.... It would allow user-mode code to halt the
> machine.
...Until Linux 2.0.34 or so (can't remember the exact version number)
which had the workaround for this bug, about a week after the bug was
discovered.
And I was reminded in private mail that the correct lockup sequence is
actually
char main[]={0xf0,0x0f,0xc7,0xc8};
where the 0xc8 can be anything from 0xc8 to 0xcf.
Peter
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next prev parent reply other threads:[~2000-12-08 18:13 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-07 20:03 Linux 2.2.18pre25 Alan Cox
2000-12-07 23:23 ` Miquel van Smoorenburg
2000-12-07 23:41 ` Alan Cox
2000-12-08 9:47 ` Willy Tarreau
2000-12-08 14:08 ` Alan Cox
2000-12-08 16:07 ` Miquel van Smoorenburg
2000-12-08 17:08 ` Alan Cox
2000-12-08 18:12 ` Philipp Rumpf
2000-12-08 0:20 ` Andrea Arcangeli
2000-12-08 0:27 ` Alan Cox
2000-12-08 0:41 ` Andrea Arcangeli
2000-12-08 0:47 ` Alan Cox
2000-12-08 1:27 ` Linus Torvalds
2000-12-08 0:44 ` Signal 11 Rainer Mager
2000-12-08 1:05 ` Jeff V. Merkey
2000-12-08 1:09 ` Michel LESPINASSE
2000-12-08 2:14 ` Rainer Mager
2000-12-08 1:20 ` Andi Kleen
2000-12-08 1:24 ` Jeff V. Merkey
2000-12-08 1:40 ` Andi Kleen
2000-12-08 1:43 ` Jeff V. Merkey
2000-12-08 1:55 ` Jeff V. Merkey
2000-12-08 19:20 ` Dr. Kelsey Hudson
2000-12-08 2:28 ` davej
2000-12-08 3:13 ` Jeff V. Merkey
2000-12-08 3:25 ` davej
2000-12-08 16:44 ` Matthew Vanecek
2000-12-08 19:43 ` Dr. Kelsey Hudson
2000-12-08 13:52 ` Alan Cox
2000-12-15 0:11 ` lamont
2000-12-08 1:58 ` Richard B. Johnson
2000-12-08 2:04 ` Peter Samuelson
2000-12-08 16:36 ` Matthew Vanecek
2000-12-08 16:49 ` Richard B. Johnson
2000-12-08 17:40 ` Peter Samuelson [this message]
2000-12-08 19:36 ` Dr. Kelsey Hudson
2000-12-08 9:46 ` David Woodhouse
2000-12-08 14:06 ` Alan Cox
2000-12-09 19:01 ` Matthew Vanecek
2000-12-09 19:20 ` davej
2000-12-09 23:31 ` Matthew Vanecek
2000-12-11 1:31 ` OOPS when using 4GB memory setting Rainer Mager
2000-12-11 0:58 ` Signal 11 Rainer Mager
2000-12-11 9:05 ` Rainer Mager
2000-12-11 13:33 ` Mike Galbraith
2000-12-11 23:24 ` Rainer Mager
2000-12-13 0:22 ` Signal 11 - the continuing saga Rainer Mager
2000-12-13 2:17 ` Jeff V. Merkey
2000-12-13 1:45 ` Rainer Mager
2000-12-13 4:29 ` Mike Galbraith
2000-12-13 9:34 ` Rainer Mager
2000-12-13 15:40 ` Mike Galbraith
2000-12-13 3:17 ` Linus Torvalds
2000-12-13 9:34 ` Rainer Mager
2000-12-13 17:43 ` Jeff V. Merkey
2000-12-13 12:10 ` R: " CMA
2000-12-11 14:14 ` Signal 11 davej
2000-12-08 16:21 ` Horst von Brand
2000-12-08 19:34 ` Mark Vojkovich
2000-12-08 23:16 ` Jeff V. Merkey
2000-12-08 22:24 ` David Woodhouse
2000-12-09 0:56 ` Jeff V. Merkey
2000-12-08 17:02 ` Linux 2.2.18pre25 Martin Kacer
2000-12-08 17:20 ` Alan Cox
2000-12-08 17:36 ` Martin Kacer
2000-12-08 18:08 ` Andrea Arcangeli
2000-12-08 18:30 ` Martin Kacer
2000-12-08 23:55 ` Alan Cox
2000-12-09 5:32 Signal 11 davej
2000-12-14 12:42 Clayton Weaver
2000-12-14 19:11 ` Linus Torvalds
2000-12-14 22:35 ` Alan Cox
2000-12-14 22:45 ` Linus Torvalds
2000-12-14 22:58 ` Bernhard Rosenkraenzer
2000-12-14 23:11 ` Linus Torvalds
2000-12-15 0:10 ` Miquel van Smoorenburg
2000-12-15 0:32 ` Alan Cox
2000-12-15 0:42 ` Miquel van Smoorenburg
2000-12-15 2:07 ` Michael Peddemors
2000-12-15 1:09 ` Alan Cox
2000-12-15 16:12 ` Theodore Y. Ts'o
2000-12-14 23:24 ` Alan Cox
2000-12-14 23:35 ` Jakub Jelinek
2000-12-14 23:51 ` Linus Torvalds
2000-12-15 0:11 ` Dan Egli
2000-12-14 22:46 ` Jakub Jelinek
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