From: Andrew Morton <akpm@osdl.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-kernel@vger.kernel.org, "Stone Wang" <pwstone@gmail.com>
Subject: Re: 2.6.17-rc1-mm1: mlockall() regression on x86_64
Date: Tue, 4 Apr 2006 15:24:54 -0700 [thread overview]
Message-ID: <20060404152454.6e7541ad.akpm@osdl.org> (raw)
In-Reply-To: <200604042253.06378.rjw@sisk.pl>
"Rafael J. Wysocki" <rjw@sisk.pl> wrote:
>
> On Tuesday 04 April 2006 10:45, Andrew Morton wrote:
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc1/2.6.17-rc1-mm1/
>
> With this kernel mlockall(MCL_CURRENT | MCL_FUTURE) returns -EFAULT if called
> by root (unconditionally, it seems) on x86_64.
>
> On my box the output of:
>
> #include <sys/mman.h>
> #include <stdio.h>
> #include <string.h>
> #include <errno.h>
>
> int main()
> {
> int ret;
>
> ret = mlockall(MCL_CURRENT | MCL_FUTURE);
> if (ret < 0)
> printf("%s\n", strerror(errno));
>
> return 0;
> }
>
> is "Bad address", if run by root.
>
Yes, me too. It works OK on x86_32.
It's due to mm-posix-memory-lock.patch. I'd guess that
make_pages_present() is returning -EFAULT for some reason.
next prev parent reply other threads:[~2006-04-04 22:26 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-04 8:45 2.6.17-rc1-mm1 Andrew Morton
2006-04-04 14:31 ` 2.6.17-rc1-mm1 Kumar Gala
2006-04-04 16:02 ` 2.6.17-mm1: drivers/w1/: patch undoes reasonable cleanups Adrian Bunk
2006-04-04 16:35 ` Evgeniy Polyakov
2006-04-04 16:29 ` 2.6.17-rc1-mm1: KEXEC became SMP-only Adrian Bunk
2006-04-04 17:22 ` Zachary Amsden
2006-04-04 17:50 ` Eric W. Biederman
2006-04-06 22:37 ` Adrian Bunk
2006-04-04 17:43 ` Eric W. Biederman
2006-04-04 17:51 ` Zachary Amsden
2006-04-04 18:43 ` Eric W. Biederman
2006-04-04 19:23 ` Zachary Amsden
2006-04-04 19:38 ` Muli Ben-Yehuda
2006-04-04 20:25 ` Andrew Morton
2006-04-04 22:02 ` Zachary Amsden
2006-04-04 22:19 ` Andrew Morton
2006-04-04 22:34 ` Zachary Amsden
2006-04-04 22:38 ` Andrew Morton
2006-04-05 0:21 ` Martin Bligh
2006-04-05 2:45 ` Eric W. Biederman
2006-04-04 16:29 ` [-mm patch] i386: pre_intr_init_hook optimization Adrian Bunk
2006-04-04 17:16 ` Zachary Amsden
2006-04-04 16:29 ` 2.6.17-rc1-mm1: why did acpi_ns_build_external_path() become global? Adrian Bunk
2006-04-04 16:30 ` [-mm patch] drivers/media/video/bt866.c: small fixes Adrian Bunk
2006-04-04 18:32 ` Martin Samuelsson
2006-04-05 7:42 ` Andrew Morton
2006-04-05 9:02 ` Adrian Bunk
2006-04-05 13:44 ` Martin Samuelsson
2006-04-05 8:32 ` Johannes Stezenbach
2006-04-05 13:54 ` Martin Samuelsson
2006-04-04 16:30 ` [-mm patch] fs/nfsd/nfs4state.c: make a struct static Adrian Bunk
2006-04-04 16:50 ` [NFS] " J. Bruce Fields
2006-04-04 17:29 ` Adrian Bunk
2006-04-04 20:53 ` 2.6.17-rc1-mm1: mlockall() regression on x86_64 Rafael J. Wysocki
2006-04-04 22:24 ` Andrew Morton [this message]
2006-04-04 21:53 ` 2.6.17-rc1-mm1 Zan Lynx
2006-04-04 22:09 ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 7:01 ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-05 7:29 ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 22:01 ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-04 23:38 ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05 2:05 ` 2.6.17-rc1-mm1 Zou Nan hai
2006-04-05 16:15 ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-05 21:17 ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05 21:37 ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 21:39 ` 2.6.17-rc1-mm1 Andreas Schwab
2006-04-05 22:01 ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06 1:49 ` 2.6.17-rc1-mm1 Antonino A. Daplas
2006-04-06 10:21 ` 2.6.17-rc1-mm1 Russell King
2006-04-06 10:34 ` 2.6.17-rc1-mm1 Russell King
2006-04-06 14:55 ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06 10:16 ` 2.6.17-rc1-mm1 Russell King
2006-04-05 2:27 ` 2.6.17-rc1-mm1, nfsd/reiser4 BUG Zan Lynx
2006-04-07 12:27 ` 2.6.17-rc1-mm1: drivers/acpi/numa.c compile error Adrian Bunk
2006-04-07 20:59 ` Andrew Morton
2006-04-09 15:44 ` Adrian Bunk
2006-04-09 15:57 ` Randy.Dunlap
2006-04-07 20:58 ` 2.6.17-rc1-mm1 - detects buggy TSC on GEODE Jim Cromie
2006-04-08 0:07 ` Andrew Morton
2006-04-08 0:25 ` john stultz
2006-04-08 1:15 ` Jim Cromie
2006-04-13 7:39 ` 2.6.17-rc1-mm1 Heiko Carstens
2006-04-13 8:13 ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-14 16:07 ` 2.6.17-rc1-mm1 Alasdair G Kergon
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=20060404152454.6e7541ad.akpm@osdl.org \
--to=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pwstone@gmail.com \
--cc=rjw@sisk.pl \
/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;
as well as URLs for NNTP newsgroup(s).