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From: "Jesper Juhl" <jesper.juhl@gmail.com>
To: sergio@sergiomb.no-ip.org
Cc: "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	billm@melbpc.org.au, billm@suburbia.net
Subject: Re: Math-emu kills the kernel on Athlon64 X2
Date: Tue, 19 Sep 2006 02:02:48 +0200	[thread overview]
Message-ID: <9a8748490609181702r6a6bac4et560081e2a25adc1f@mail.gmail.com> (raw)
In-Reply-To: <1158623391.13821.4.camel@localhost.portugal>

On 19/09/06, Sergio Monteiro Basto <sergio@sergiomb.no-ip.org> wrote:
> On Tue, 2006-09-19 at 00:18 +0200, Jesper Juhl wrote:
> > Hi,
> >
> > If I enable the math emulator in 2.6.18-rc7-git2 (only version I've
> > tried this with) and then boot the kernel with "no387" then I only get
> > as far as lilo's "...Booting the kernel." message and then the system
> > hangs.
> >
>
> I think, math emulation is for 486 and older. 486 DX2 was the first one
> who have math co processor, on earlier processor it should be disable .
>
Yes, it's mainly there for CPU's that don't have a math co-processor,
but it's also there for the cases where the math co-processor is
broken or where for some other reason you may not want to use it - so
it really should work...  Sure, it may be slow as hell compared to
hardware, but if it's there and I can select it then it should at
least be functional.


-- 
Jesper Juhl <jesper.juhl@gmail.com>
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

  reply	other threads:[~2006-09-19  0:02 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-18 22:18 Jesper Juhl
2006-09-18 22:52 ` Linus Torvalds
2006-09-18 23:14   ` Jesper Juhl
2006-09-18 23:49     ` Linus Torvalds
2006-09-19  0:47       ` Jesper Juhl
2006-09-19  2:18         ` Linus Torvalds
2006-09-18 23:49 ` Sergio Monteiro Basto
2006-09-19  0:02   ` Jesper Juhl [this message]
2006-09-19 12:28   ` Krzysztof Halasa
2006-09-20  0:48     ` Sergio Monteiro Basto
2006-09-20 22:31       ` Krzysztof Halasa
2006-09-19  8:01 ` Andi Kleen
2006-09-19  8:31   ` Jesper Juhl
2006-09-19 21:14   ` Jesper Juhl
2006-09-19 22:01     ` Linus Torvalds
2006-09-19 22:16       ` Jesper Juhl
2006-09-19 22:44         ` Jesper Juhl
2006-10-03  2:16       ` [PATCH/RFC] " Randy Dunlap
2006-10-03  2:34         ` Linus Torvalds
2006-10-03  3:24           ` Randy Dunlap
2006-10-03 10:05             ` Andi Kleen
2006-10-03 14:54               ` Linus Torvalds
2006-10-03 10:11             ` [PATCH/RFC] Math-emu kills the kernel on Athlon64 X2 II -- it's terminally broken Andi Kleen
2006-10-03 11:53               ` Alan Cox
2006-10-03 14:48               ` Linus Torvalds
2006-10-03  4:38           ` [PATCH/RFC] Math-emu kills the kernel on Athlon64 X2 Randy Dunlap
2006-10-03 11:30             ` Alan Cox
2006-10-03 15:10             ` Linus Torvalds
2006-10-03 16:23               ` Randy Dunlap
2006-10-03 16:37                 ` Linus Torvalds
2006-10-03 16:49                   ` Randy Dunlap
2006-10-03 16:51                     ` Linus Torvalds
2006-10-04 19:24                       ` Jesper Juhl
2006-10-04 19:43                         ` Linus Torvalds
2006-10-04 20:02                           ` Jesper Juhl
2006-10-04 22:00                             ` Alan Cox
2006-10-04 21:44                               ` Andi Kleen
2006-09-20  8:16     ` Andi Kleen
2006-09-20  8:15 linux

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