From: dewar@gnat.com (Robert Dewar)
To: firefly@diku.dk, tjm@codegen.com
Cc: discuss@x86-64.org, linux-kernel@vger.kernel.org,
peter@jazz-1.trumpet.com.au
Subject: Re: [discuss] Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
Date: Fri, 14 Feb 2003 09:03:36 -0500 (EST) [thread overview]
Message-ID: <20030214140336.501F2F2D7B@nile.gnat.com> (raw)
> > The only way to get from long-mode back to legacy-mode is to reset the
> > processor. It can be done in software but you will likely lose interrupts.
>
> Smartdrv.sys and triple-faults come back, all is forgiven! ;)
I have an idea, perhaps we can make the keyboard controller recognize a special
command that will reset the processor :-) :-)
next reply other threads:[~2003-02-14 13:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-14 14:03 Robert Dewar [this message]
2003-02-14 14:25 ` Peter Finderup Lund
2003-02-14 14:25 ` Peter Finderup Lund
-- strict thread matches above, loose matches on Subject: below --
2003-02-13 18:07 Andi Kleen
2003-02-14 0:14 ` [discuss] " Peter Tattam
2003-02-14 1:29 ` Andi Kleen
2003-02-14 1:51 ` Eric Northup
2003-02-14 2:01 ` Peter Tattam
2003-02-14 4:07 ` Thomas J. Merritt
2003-02-14 9:38 ` Peter Finderup Lund
2003-02-14 8:27 ` Eric W. Biederman
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