From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andy Lutomirski <luto@myrealbox.com>, Andi Kleen <ak@suse.de>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
arjanv@redhat.com, suresh.b.siddha@intel.com,
jun.nakajima@intel.com
Subject: Re: [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2
Date: Fri, 4 Jun 2004 19:32:16 +0200 [thread overview]
Message-ID: <20040604173216.GA6646@elte.hu> (raw)
In-Reply-To: <20040604172227.GA5175@elte.hu>
this is how the maps look like on distributions that dont have the
PT_GNU_STACK:
08048000-0804c000 r-xp 00000000 03:01 495264 /bin/cat
0804c000-0804d000 rwxp 00003000 03:01 495264 /bin/cat
0804d000-0806e000 rwxp 0804d000 00:00 0
40000000-40014000 r-xp 00000000 03:01 319552 /lib/ld-2.3.3.so
40014000-40015000 r--p 00014000 03:01 319552 /lib/ld-2.3.3.so
40015000-40016000 rwxp 00015000 03:01 319552 /lib/ld-2.3.3.so
40029000-4015d000 r-xp 00000000 03:01 176042 /lib/tls/libc-2.3.3.so
4015d000-4015f000 r--p 00134000 03:01 176042 /lib/tls/libc-2.3.3.so
4015f000-40161000 rwxp 00136000 03:01 176042 /lib/tls/libc-2.3.3.so
40161000-40164000 rwxp 40161000 00:00 0
40164000-40364000 r-xp 00000000 03:01 465837 /usr/lib/locale/locale-archive
40364000-4036a000 r-xp 00902000 03:01 465837 /usr/lib/locale/locale-archive
4036a000-40397000 r-xp 0090c000 03:01 465837 /usr/lib/locale/locale-archive
40397000-40398000 r-xp 00942000 03:01 465837 /usr/lib/locale/locale-archive
bfffe000-c0000000 rwxp bfffe000 00:00 0
ffffe000-fffff000 ---p 00000000 00:00 0
so we can turn on NX safely - all but the library/binary .data areas are
executable. (and if any code assumes executability there then it
deserves that SEGFAULT ...)
Ingo
next prev parent reply other threads:[~2004-06-04 17:37 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-02 20:50 [announce] [patch] NX (No eXecute) support for x86, 2.6.7-rc2-bk2 Ingo Molnar
2004-06-02 21:00 ` Christoph Hellwig
2004-06-02 21:07 ` Ingo Molnar
2004-06-02 21:13 ` Linus Torvalds
2004-06-02 21:17 ` Arjan van de Ven
2004-06-02 21:31 ` Doug McNaught
2004-06-08 8:46 ` Jakub Jelinek
2004-06-03 1:12 ` Joel Becker
2004-06-03 1:27 ` Andi Kleen
2004-06-03 6:24 ` Arjan van de Ven
2004-06-03 20:37 ` jlnance
2004-06-03 7:21 ` Ingo Molnar
2004-06-03 12:44 ` Ingo Molnar
2004-06-03 15:54 ` Andi Kleen
2004-06-03 23:01 ` Andy Lutomirski
2004-06-03 23:08 ` Andi Kleen
2004-06-03 23:54 ` Andy Lutomirski
2004-06-04 0:05 ` Andy Lutomirski
2004-06-04 9:25 ` Ingo Molnar
2004-06-04 15:26 ` Andy Lutomirski
2004-06-04 15:36 ` Linus Torvalds
2004-06-04 15:41 ` Arjan van de Ven
2004-06-04 15:47 ` Linus Torvalds
2004-06-04 15:51 ` Arjan van de Ven
2004-06-04 16:02 ` Linus Torvalds
2004-06-04 16:13 ` Andi Kleen
2004-06-04 16:37 ` Arjan van de Ven
2004-06-04 16:40 ` Christoph Hellwig
2004-06-04 17:27 ` David Mosberger
2004-06-04 17:30 ` Andi Kleen
2004-06-08 9:07 ` Jakub Jelinek
2004-06-08 9:14 ` Andi Kleen
2004-06-08 9:19 ` Arjan van de Ven
2004-06-04 16:51 ` Ulrich Drepper
2004-06-08 17:15 ` Bill Davidsen
2004-06-04 18:11 ` Gerhard Mack
2004-06-04 18:12 ` Arjan van de Ven
2004-06-04 16:06 ` Ingo Molnar
2004-06-04 17:20 ` Ingo Molnar
2004-06-04 17:22 ` Ingo Molnar
2004-06-04 17:32 ` Ingo Molnar [this message]
2004-06-03 19:24 ` Suresh Siddha
2004-06-03 20:37 ` Andi Kleen
2004-06-03 22:58 ` Suresh Siddha
2004-06-03 23:06 ` Andi Kleen
2004-06-04 9:30 ` Ingo Molnar
2004-06-03 12:57 ` Brian Gerst
2004-06-04 9:39 ` Ingo Molnar
2004-06-04 10:41 ` Christoph Hellwig
2004-06-04 10:48 ` William Lee Irwin III
2004-06-03 16:21 ` Ulrich Drepper
2004-06-03 19:30 ` Kurt Garloff
2004-06-02 21:43 ` Andi Kleen
2004-06-03 0:11 ` Rusty Russell
2004-06-03 0:17 ` Jeff Garzik
2004-06-03 7:24 ` Ingo Molnar
2004-06-03 8:47 ` Ingo Molnar
2004-06-03 8:53 ` Ingo Molnar
2004-06-04 0:04 ` Rusty Russell
2004-06-03 9:07 ` Ingo Molnar
2004-06-03 14:36 ` Gerhard Mack
2004-06-03 16:22 ` Arjan van de Ven
2004-06-04 9:36 ` Ingo Molnar
2004-06-04 11:59 ` Stephen Wille Padnos
[not found] <22L0f-5Ci-11@gated-at.bofh.it>
[not found] ` <22O7J-8dw-11@gated-at.bofh.it>
[not found] ` <22Wf4-5Xv-23@gated-at.bofh.it>
2004-06-03 9:43 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2004-06-04 18:01 Nakajima, Jun
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