From: William Josephson <jkw@eecs.harvard.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] 386
Date: Sat, 29 Oct 2005 15:07:45 -0400 [thread overview]
Message-ID: <20051029190745.GE38291@mero.morphisms.net> (raw)
In-Reply-To: <ee9e417a0510290808j32b3aabeuf912d35a2b7425a8@mail.gmail.com>
On Sat, Oct 29, 2005 at 11:08:18AM -0400, Russ Cox wrote:
> Is anyone out there using Plan 9 on 386 machines?
> I'm just wondering whether it's going to affect anyone
> if the default kernels assume they can use some of
> the 486 instructions (specifically INVLPG).
I am not and for some things I'm working on, I've given
up and assumed a PentiumPro. That said, it would be
nice to retain support for older machines.
It has been a while since I've looked at Plan 9's VM
system. How hard would it be to select an implementation
at run time? It isn't too hard to probe for these sorts
of things at boot. I suppose one could also make it a
compile-time option, but I'd be inclined to avoid that
since it could lead to a real mess if people decided that
they wanted to use other features down the road.
Why the sudden interest in invlpg?
next prev parent reply other threads:[~2005-10-29 19:07 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-29 15:08 Russ Cox
2005-10-29 15:26 ` Lucio De Re
2005-10-29 19:07 ` William Josephson [this message]
2005-10-29 20:01 ` jmk
2005-10-29 20:06 ` Lucio De Re
2005-10-29 21:07 ` Uriel
2005-10-29 21:18 ` jmk
2005-10-29 21:51 ` Ronald G Minnich
2005-10-29 22:31 ` Francisco J Ballesteros
2005-10-30 0:50 ` Ronald G Minnich
2005-10-30 5:41 ` Jack Johnson
2005-10-30 16:15 ` Ronald G Minnich
2005-10-30 20:02 ` jmk
2005-10-30 20:12 ` Uriel
2005-10-30 20:34 ` Devon H. O'Dell
2005-10-30 20:52 ` jmk
2005-10-30 21:15 ` Devon H. O'Dell
2005-10-30 22:56 ` jmk
2005-10-31 0:20 ` Ronald G Minnich
2005-10-31 0:49 ` Russ Cox
2005-10-31 21:26 ` Dave Eckhardt
2005-10-30 21:27 ` Mike Haertel
2005-10-31 10:06 ` Charles Forsyth
2005-10-30 22:11 ` Ronald G Minnich
2005-10-30 21:16 ` Francisco J Ballesteros
2005-10-30 21:53 ` Ronald G Minnich
2005-10-29 23:45 ` John DeGood
2005-10-30 0:04 ` William Josephson
2005-10-30 12:59 ` Brantley Coile
2005-10-30 1:14 ` geoff
2005-10-29 20:22 ` Christopher Nielsen
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