From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Kanoj Sarcar <kanoj@google.engr.sgi.com>
Cc: torvalds@transmeta.com, andrea@suse.de, alan@lxorguk.ukuu.org.uk,
sct@redhat.com, Gerhard.Wichert@pdb.siemens.de,
Winfried.Gerhard@pdb.siemens.de, linux-kernel@vger.rutgers.edu,
linux-mm@kvack.org
Subject: Re: [bigmem-patch] 4GB with Linux on IA32
Date: Tue, 17 Aug 1999 12:46:35 +0100 (BST) [thread overview]
Message-ID: <E11GhhN-0004Rx-00@the-village.bc.nu> (raw)
In-Reply-To: <199908170650.XAA95856@google.engr.sgi.com> from "Kanoj Sarcar" at Aug 16, 99 11:50:42 pm
> I will give you one example of the type of cases that I am talking about.
> In drivers/char/bttv.c, VIDIOCSFBUF ioctl seems to be setting the "vidadr"
> to a kernel virtual address from the physical address present in the
> user's pte. This will not work for bigmem pages.
Oh now I understand Linus rather bizarre message
VIDIOCSFBUF takes a physical base address. The &1 stuff thats i nthere is
a debug hook that never got taken out. You can ignore the &1 case in that
ioctl or just remove it.
Alan
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://humbolt.geo.uu.nl/Linux-MM/
next prev parent reply other threads:[~1999-08-17 11:46 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-16 16:29 Andrea Arcangeli
1999-08-16 16:48 ` Matthew Wilcox
1999-08-16 17:19 ` Andrea Arcangeli
1999-08-16 18:43 ` Kanoj Sarcar
1999-08-16 19:43 ` Alan Cox
1999-08-16 20:54 ` Andrea Arcangeli
1999-08-16 22:47 ` Andrea Arcangeli
1999-08-16 23:26 ` Andrea Arcangeli
1999-08-16 23:39 ` Kanoj Sarcar
1999-08-17 0:10 ` Andrea Arcangeli
1999-08-17 6:37 ` Kanoj Sarcar
1999-08-17 6:41 ` Linus Torvalds
1999-08-17 6:50 ` Kanoj Sarcar
1999-08-17 7:03 ` Linus Torvalds
1999-08-17 7:23 ` Linus Torvalds
1999-08-17 11:39 ` Alan Cox
1999-08-26 16:27 ` Andrea Arcangeli
1999-08-17 11:46 ` Alan Cox [this message]
1999-08-17 14:26 ` Andrea Arcangeli
1999-08-17 6:39 ` Linus Torvalds
1999-08-17 12:40 ` Andrea Arcangeli
1999-08-17 6:29 ` Linus Torvalds
1999-08-17 12:37 ` Andrea Arcangeli
1999-08-17 14:04 ` Andrea Arcangeli
1999-08-17 8:52 ` Jakub Jelinek
1999-08-17 9:13 ` Pavel Machek
1999-08-18 14:08 ` Andrea Arcangeli
1999-08-19 12:20 ` Andrea Arcangeli
1999-08-16 23:28 ` Kanoj Sarcar
1999-08-16 23:49 ` Andrea Arcangeli
1999-08-17 6:29 ` David S. Miller
1999-08-17 12:38 ` Andrea Arcangeli
1999-08-17 0:17 ` Andrea Arcangeli
1999-08-19 13:33 ` Thierry Vignaud
1999-08-19 16:49 ` Stephen C. Tweedie
1999-08-20 7:35 ` Thierry Vignaud
1999-08-20 9:55 ` Alan Cox
1999-08-20 18:25 ` Linus Torvalds
1999-08-16 20:34 ` Andrea Arcangeli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=E11GhhN-0004Rx-00@the-village.bc.nu \
--to=alan@lxorguk.ukuu.org.uk \
--cc=Gerhard.Wichert@pdb.siemens.de \
--cc=Winfried.Gerhard@pdb.siemens.de \
--cc=andrea@suse.de \
--cc=kanoj@google.engr.sgi.com \
--cc=linux-kernel@vger.rutgers.edu \
--cc=linux-mm@kvack.org \
--cc=sct@redhat.com \
--cc=torvalds@transmeta.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox