From: "H. Peter Anvin" <hpa@zytor.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: hammer: MAP_32BIT
Date: Fri, 09 May 2003 13:55:17 -0700 [thread overview]
Message-ID: <3EBC15B5.4070604@zytor.com> (raw)
In-Reply-To: <3EBC0084.4090809@redhat.com>
Ulrich Drepper wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> H. Peter Anvin wrote:
>
>
>>How about this: since the address argument is basically unused anyway
>>unless MAP_FIXED is set, how about a MAP_MAXADDR which interprets the
>>address argument as the highest permissible address (or lowest
>>nonpermissible address)?
>
>
> You miss the point of my initial mail: I need a way to say "preferrably
> 32bit address, otherwise give me what you have". MAP_32BIT already
> provides a way to require 32 bit addresses.
>
No, it requires 31-bit addresses, and there was a discussion about how
some things need 31-bit and some 32-bit addresses. There might also be
a need for 39-bit addresses, to be compatible with Linux 2.4.
MAP_MAXADDR_ADVISORY?
-hpa
next prev parent reply other threads:[~2003-05-09 20:43 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-09 7:35 hammer: MAP_32BIT Ulrich Drepper
2003-05-09 9:20 ` Andi Kleen
2003-05-09 11:28 ` mikpe
2003-05-09 11:38 ` Andi Kleen
2003-05-09 11:52 ` mikpe
2003-05-09 12:16 ` Andi Kleen
2003-05-09 18:11 ` H. Peter Anvin
2003-05-09 19:24 ` Ulrich Drepper
2003-05-09 20:55 ` H. Peter Anvin [this message]
2003-05-09 21:45 ` Ulrich Drepper
2003-05-09 22:07 ` H. Peter Anvin
2003-05-09 22:20 ` Ulrich Drepper
2003-05-09 22:21 ` H. Peter Anvin
2003-05-09 22:20 ` Timothy Miller
2003-05-09 22:20 ` H. Peter Anvin
2003-05-09 22:46 ` Timothy Miller
2003-05-09 23:24 ` H. Peter Anvin
2003-05-13 14:25 ` Timothy Miller
2003-05-09 22:22 ` Ulrich Drepper
2003-05-09 22:53 ` Timothy Miller
2003-05-09 23:24 ` Ulrich Drepper
2003-05-10 0:00 ` Edgar Toernig
2003-05-10 0:58 ` Ulrich Drepper
2003-05-10 2:51 ` Edgar Toernig
2003-05-09 17:36 ` H. Peter Anvin
2003-05-09 17:39 ` Ulrich Drepper
2003-05-10 1:48 ` Andi Kleen
2003-05-10 20:10 ` David Woodhouse
2003-05-13 18:54 ` H. Peter Anvin
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