From: Kasper Dupont <kasperd@daimi.au.dk>
To: "David S. Miller" <davem@redhat.com>
Cc: manfred@colorfullife.com, rusty@rustcorp.com.au,
linux-kernel@vger.kernel.org
Subject: Re: [TRIVIAL] Warn users about machines with non-working WP bit
Date: Tue, 06 Aug 2002 16:03:34 +0200 [thread overview]
Message-ID: <3D4FD736.DA443B4B@daimi.au.dk> (raw)
In-Reply-To: 20020806.022813.27560736.davem@redhat.com
"David S. Miller" wrote:
>
> verify_area() checks aren't enough, consider a threaded application
> calling mprotect() while the copy is in progress.
Couldn't we just freeze all other processes with the same mm while
a copy_to_user is in progress?
Of course this should only be done if CONFIG_X86_WP_WORKS_OK is
not enabled, so systems with a working wp doesn't have to take a
performance hit.
--
Kasper Dupont -- der bruger for meget tid på usenet.
For sending spam use mailto:razrep@daimi.au.dk
or mailto:mcxumhvenwblvtl@skrammel.yaboo.dk
next prev parent reply other threads:[~2002-08-06 14:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-06 9:17 [TRIVIAL] Warn users about machines with non-working WP bit Manfred Spraul
2002-08-06 9:28 ` David S. Miller
2002-08-06 9:42 ` Manfred Spraul
2001-08-20 20:03 ` Pavel Machek
2002-08-06 14:03 ` Kasper Dupont [this message]
2002-08-06 13:56 ` David S. Miller
2002-08-06 14:16 ` Kasper Dupont
2002-08-06 14:05 ` David S. Miller
2002-08-06 14:27 ` Kasper Dupont
2002-08-06 14:36 ` Manfred Spraul
2001-08-20 20:06 ` Pavel Machek
2002-08-19 22:04 ` Alan Cox
2002-08-06 15:11 ` Kasper Dupont
2002-08-06 16:38 ` Willy Tarreau
2002-08-06 16:45 ` Zwane Mwaikambo
-- strict thread matches above, loose matches on Subject: below --
2002-08-06 3:49 Rusty Trivial Russell
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=3D4FD736.DA443B4B@daimi.au.dk \
--to=kasperd@daimi.au.dk \
--cc=davem@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=manfred@colorfullife.com \
--cc=rusty@rustcorp.com.au \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.