From: Andrew Morton <akpm@linux-foundation.org>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@suse.de>,
Jiri Kosina <jkosina@suse.cz>, Ingo Molnar <mingo@elte.hu>,
Roland McGrath <roland@redhat.com>,
Jakub Jelinek <jakub@redhat.com>
Subject: Re: 2.6.23-mm1
Date: Wed, 17 Oct 2007 02:02:25 -0700 [thread overview]
Message-ID: <20071017020225.7c4d665c.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071017160101.4dde7223.kamezawa.hiroyu@jp.fujitsu.com>
On Wed, 17 Oct 2007 16:01:01 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> I noticed 32bit binary on x86_64 behavior is changed on 2.6.23-mm1.
>
> This is a result of pmap after process returns -ENOMEM.(see attached program)
> == on 2.6.23 ==
> errno 12
> 3531: ./malloc
> 0000000000001000 6272K ----- [ anon ]
> 0000000000621000 100K r-x-- /lib/ld-2.5.so
> 000000000063a000 4K r---- /lib/ld-2.5.so
> 000000000063b000 4K rw--- /lib/ld-2.5.so
> 000000000063c000 8K ----- [ anon ]
> 000000000063e000 1244K r-x-- /lib/libc-2.5.so
> 0000000000775000 8K r---- /lib/libc-2.5.so
> 0000000000777000 4K rw--- /lib/libc-2.5.so
> 0000000000778000 12K rw--- [ anon ]
> 000000000077b000 123700K ----- [ anon ]
> 0000000008048000 4K r-x-- /home/kamezawa/malloc
> 0000000008049000 4K rw--- /home/kamezawa/malloc
> 000000000804a000 3929824K ----- [ anon ]
> 00000000f7f02000 8K rw--- [ anon ]
> 00000000f7f04000 100K ----- [ anon ]
> 00000000f7f1d000 4K rw--- [ anon ]
> 00000000f7f1e000 131812K ----- [ anon ]
> 00000000fffd7000 84K rw--- [ stack ]
> 00000000fffec000 72K ----- [ anon ]
> 00000000ffffe000 4K r-x-- [ anon ]
> total 4193272K
> ==
>
> == on 2.6.23-mm1==
> errno 12
> 3504: ./malloc
> 0000000000621000 100K r-x-- /lib/ld-2.5.so
> 000000000063a000 4K r---- /lib/ld-2.5.so
> 000000000063b000 4K rw--- /lib/ld-2.5.so
> 000000000063e000 1244K r-x-- /lib/libc-2.5.so
> 0000000000775000 8K r---- /lib/libc-2.5.so
> 0000000000777000 4K rw--- /lib/libc-2.5.so
> 0000000000778000 12K rw--- [ anon ]
> 0000000008048000 4K r-x-- /home/kamezawa/malloc
> 0000000008049000 4K rw--- /home/kamezawa/malloc
> 0000000055555000 4K rw--- [ anon ]
> 0000000055556000 100K ----- [ anon ]
> 000000005556f000 8K rw--- [ anon ]
> 0000000055671000 2789016K ----- [ anon ]
> 00000000ffa17000 84K rw--- [ stack ]
> 00000000ffa2c000 5960K ----- [ anon ]
> 00000000ffffe000 4K r-x-- [ anon ]
> total 2796560K
> ==
So it only managed to allocate half as much virtual memory? Lovely.
Thanks for the test case.
> Maybe get_unmapped_area() had some change.
> Is this intended ?
It had better not be.
It is due to pie-executable-randomization.patch. That patch has been an
ongoing source of trouble. I'll drop it. Again. Guys, please don't resend
it until it actually works.
next prev parent reply other threads:[~2007-10-17 9:03 UTC|newest]
Thread overview: 164+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-12 4:31 2.6.23-mm1 Andrew Morton
2007-10-12 5:03 ` 2.6.23-mm1 KAMEZAWA Hiroyuki
2007-10-12 6:42 ` 2.6.23-mm1 Andrew Morton
2007-10-12 6:46 ` 2.6.23-mm1 Al Viro
2007-10-12 7:13 ` 2.6.23-mm1 Andrew Morton
2007-10-12 18:06 ` [PATCH net-2.6] uml: hard_header fix Stephen Hemminger
2007-10-12 19:04 ` 2.6.23-mm1 Al Viro
2007-10-12 19:47 ` 2.6.23-mm1 thread exit_group issue Mathieu Desnoyers
2007-10-12 20:01 ` Andrew Morton
2007-10-13 1:03 ` Andrew Morton
2007-10-13 11:48 ` Oleg Nesterov
2007-10-13 12:02 ` Oleg Nesterov
2007-10-13 17:49 ` Andrew Morton
2007-10-14 4:04 ` Mathieu Desnoyers
2007-10-12 7:25 ` 2.6.23-mm1 KAMEZAWA Hiroyuki
2007-10-12 8:36 ` 2.6.23-mm1 Sam Ravnborg
2007-10-12 8:31 ` 2.6.23-mm1 Torsten Kaiser
2007-10-12 8:37 ` 2.6.23-mm1 Andrew Morton
2007-10-12 12:46 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 8:01 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 10:55 ` 2.6.23-mm1 Jeff Garzik
2007-10-13 12:03 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 12:19 ` 2.6.23-mm1 Jeff Garzik
2007-10-13 14:32 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 14:40 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 15:13 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 17:48 ` 2.6.23-mm1 Jeff Garzik
2007-10-13 18:05 ` 2.6.23-mm1 Torsten Kaiser
2007-10-13 18:18 ` 2.6.23-mm1 Andrew Morton
2007-10-13 18:35 ` 2.6.23-mm1 Torsten Kaiser
2007-10-14 11:54 ` 2.6.23-mm1 Torsten Kaiser
2007-10-14 18:39 ` 2.6.23-mm1 Andrew Morton
2007-10-14 19:12 ` 2.6.23-mm1 Torsten Kaiser
2007-10-14 19:26 ` 2.6.23-mm1 Andrew Morton
2007-10-14 19:26 ` 2.6.23-mm1 Andrew Morton
2007-10-14 19:40 ` 2.6.23-mm1 Torsten Kaiser
2007-10-14 22:03 ` 2.6.23-mm1 Milan Broz
2007-10-14 22:03 ` 2.6.23-mm1 Milan Broz
2007-10-15 6:50 ` 2.6.23-mm1 Jens Axboe
2007-10-15 6:50 ` 2.6.23-mm1 Jens Axboe
2007-10-15 7:31 ` 2.6.23-mm1 Neil Brown
2007-10-15 7:31 ` 2.6.23-mm1 Neil Brown
2007-10-15 7:45 ` 2.6.23-mm1 Jens Axboe
2007-10-15 7:45 ` 2.6.23-mm1 Jens Axboe
2007-10-13 18:41 ` 2.6.23-mm1 Jeff Garzik
2007-10-12 6:48 ` 2.6.23-mm1 Cedric Le Goater
2007-10-12 6:51 ` [PATCH] add missing parenthesis in cfe_writeblk() macro Mariusz Kozlowski
2007-10-12 7:44 ` 2.6.23-mm1 - build failure on axonram Kamalesh Babulal
2007-10-12 9:42 ` Build Failure (Was Re: 2.6.23-mm1) Dhaval Giani
2007-10-12 9:42 ` Dhaval Giani
2007-10-12 20:38 ` 2.6.23-mm1 Laurent Riffard
2007-10-12 21:00 ` 2.6.23-mm1 Andrew Morton
2007-10-13 9:29 ` [PATCH] Reiser4: Drop 'size' argument from bio_endio and bi_end_io Laurent Riffard
2007-10-13 10:10 ` Jens Axboe
2007-10-14 13:09 ` Edward Shishkin
2007-10-15 16:13 ` 2.6.23-mm1 Zan Lynx
2007-10-12 21:32 ` 2.6.23-mm1 Rafael J. Wysocki
2007-10-15 16:09 ` 2.6.23-mm1 Mark Gross
2007-10-15 20:40 ` 2.6.23-mm1 Rafael J. Wysocki
2007-10-16 19:58 ` 2.6.23-mm1 Mark Gross
2007-10-16 20:28 ` 2.6.23-mm1 Rafael J. Wysocki
2007-10-16 23:31 ` 2.6.23-mm1 Mark Gross
2007-10-17 21:15 ` [PATCH] static initialization with blocking notifiers. was :wqRe: 2.6.23-mm1 Mark Gross
2007-10-17 17:21 ` [PATCH] static initialization and blocking notification for pm_qos... was 2.6.23-mm1 Mark Gross
2007-10-13 4:35 ` 2.6.23-mm1 - Build failure on rgmii Kamalesh Babulal
2007-10-13 4:44 ` 2.6.23-mm1 - build failure with advansys Kamalesh Babulal
2007-10-13 6:52 ` Andrew Morton
2007-10-13 6:52 ` Andrew Morton
2007-10-18 0:07 ` Paul Mackerras
2007-10-18 0:07 ` Paul Mackerras
2007-10-18 1:48 ` Matthew Wilcox
2007-10-18 1:48 ` Matthew Wilcox
2007-10-13 15:50 ` 2.6.23-mm1 pm_prepare() and _finish() w/ args vs. without Joseph Fannin
2007-10-13 17:22 ` Rafael J. Wysocki
2007-10-13 18:40 ` Joseph Fannin
2007-10-13 19:13 ` Rafael J. Wysocki
2007-10-14 19:47 ` Joseph Fannin
2007-10-14 20:20 ` Rafael J. Wysocki
2007-10-15 20:55 ` Rafael J. Wysocki
2007-10-16 17:29 ` Joseph Fannin
2007-10-13 17:12 ` 2.6.23-mm1 Gabriel C
2007-10-13 18:01 ` 2.6.23-mm1 Andrew Morton
2007-10-13 18:08 ` 2.6.23-mm1 Gabriel C
2007-10-15 16:28 ` 2.6.23-mm1 Dave Hansen
2007-10-13 17:58 ` Suspend Broken (Re: 2.6.23-mm1) Dhaval Giani
2007-10-13 18:33 ` Rafael J. Wysocki
2007-10-14 4:26 ` Dhaval Giani
2007-10-14 14:19 ` Rafael J. Wysocki
2007-10-13 22:11 ` [2.6.23-mm1] CONFIG_LOCALVERSION handling broken Tilman Schmidt
2007-10-17 20:27 ` Sam Ravnborg
2007-10-17 23:06 ` Tilman Schmidt
2007-10-27 15:19 ` Tilman Schmidt
2007-10-27 15:28 ` Sam Ravnborg
2007-10-14 22:34 ` 2.6.23-mm1: BUG in reiserfs_delete_xattrs Laurent Riffard
2007-10-14 22:34 ` Laurent Riffard
2007-10-15 8:40 ` Christoph Hellwig
2007-10-15 18:31 ` Jeff Mahoney
2007-10-15 20:06 ` Laurent Riffard
2007-10-15 20:06 ` Laurent Riffard
2007-10-15 20:23 ` Jeff Mahoney
2007-10-15 20:23 ` Jeff Mahoney
2007-10-17 8:59 ` Christoph Hellwig
2007-10-17 8:58 ` Christoph Hellwig
2007-10-17 14:55 ` Jeff Mahoney
2007-10-17 14:55 ` Jeff Mahoney
2007-10-17 14:55 ` Jeff Mahoney
2007-10-15 18:31 ` Jeff Mahoney
2007-10-15 18:31 ` Jeff Mahoney
2007-10-15 19:51 ` Laurent Riffard
2007-10-15 19:51 ` Laurent Riffard
2007-10-15 19:51 ` Laurent Riffard
2007-10-15 6:18 ` [PATCH] Add irq protection in the percpu-counters cpu-hotplug-callback path Gautham R Shenoy
2007-10-15 12:28 ` nfs mmap adventure (was: 2.6.23-mm1) Peter Zijlstra
2007-10-15 14:06 ` David Howells
2007-10-15 15:51 ` Trond Myklebust
2007-10-15 16:38 ` Peter Zijlstra
2007-10-16 1:46 ` Nick Piggin
2007-10-15 23:27 ` David Howells
2007-10-15 15:43 ` Trond Myklebust
2007-10-16 7:18 ` 2.6.23-mm1 - regression- PowerPC link failure at arch/powerpc/kernel/head_64.o Kamalesh Babulal
2007-10-16 7:28 ` Andrew Morton
2007-10-16 7:44 ` Kamalesh Babulal
2007-10-21 6:42 ` Kamalesh Babulal
2007-10-27 5:05 ` Stephen Rothwell
2007-10-17 7:01 ` 2.6.23-mm1 KAMEZAWA Hiroyuki
2007-10-17 9:02 ` Andrew Morton [this message]
2007-10-17 9:10 ` 2.6.23-mm1 Jiri Kosina
2007-10-17 9:36 ` 2.6.23-mm1 KAMEZAWA Hiroyuki
2007-10-17 11:42 ` 2.6.23-mm1 Jiri Kosina
2007-10-17 12:33 ` 2.6.23-mm1 KAMEZAWA Hiroyuki
2007-10-19 9:07 ` PIE randomization (was Re: 2.6.23-mm1) Jiri Kosina
2007-10-19 21:54 ` 2.6.23-mm1 Jiri Kosina
2007-10-17 15:54 ` 2.6.23-mm1 - list_add corruption in cgroup Cedric Le Goater
2007-10-18 15:56 ` Paul Menage
2007-10-19 22:11 ` Paul Menage
2007-10-18 12:06 ` 2.6.23-mm1 - powerpc - Build fails at arch/powerpc/boot/inflate.o Kamalesh Babulal
2007-10-18 12:06 ` Kamalesh Babulal
2007-10-18 12:23 ` Paul Mackerras
2007-10-18 12:23 ` Paul Mackerras
2007-10-18 13:20 ` Kamalesh Babulal
2007-10-18 13:20 ` Kamalesh Babulal
2007-10-20 4:57 ` oops in lbmIODone, fails to boot [Re: 2.6.23-mm1] Mattia Dongili
2007-10-20 5:34 ` Andrew Morton
2007-10-20 12:18 ` Dave Kleikamp
2007-10-21 5:44 ` Mattia Dongili
2007-10-20 5:13 ` 2.6.23-mm1 - autofs broken Rik van Riel
2007-10-20 5:39 ` Andrew Morton
2007-10-20 5:54 ` Rik van Riel
2007-10-20 5:54 ` Rik van Riel
2007-10-20 14:56 ` Rik van Riel
2007-10-22 22:03 ` Dave Hansen
2007-10-22 3:45 ` Ian Kent
2007-10-22 16:46 ` Rik van Riel
2007-10-21 5:58 ` mysqld prevents s2ram [Re: 2.6.23-mm1] Mattia Dongili
2007-10-21 6:28 ` Mattia Dongili
2007-10-21 9:58 ` Pavel Machek
2007-10-21 11:53 ` Rafael J. Wysocki
2007-10-22 18:40 ` kernel panic when running tcpdump Mariusz Kozlowski
2007-10-22 18:40 ` Mariusz Kozlowski
2007-10-22 19:03 ` Andrew Morton
2007-10-22 19:03 ` Andrew Morton
2007-10-22 21:16 ` Mariusz Kozlowski
2007-10-22 21:16 ` Mariusz Kozlowski
-- strict thread matches above, loose matches on Subject: below --
2007-10-12 4:31 2.6.23-mm1 Andrew Morton
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