Your message dated Thu, 30 Apr 2009 15:32:13 +0000
with message-id <[email protected]>
and subject line Bug#525014: fixed in numactl 2.0.3~rc3-1
has caused the Debian Bug report #525014,
regarding libnuma1: wrong parsing to /proc/self/status causes wrong
out-of-range errors
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
525014: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=525014
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: libnuma1
Version: 2.0.3~rc1-1
Severity: important
Hello,
After upgrading a quad-socket quad-core machine from a custom 2.6.27
to Debian's 2.6.29, we were amazed to see that numactl now reports that
--physcpubind=X is an out-of-range CPU when 12<=X<16 (while obviously
we still have 16 cores in this machine). Same problem on other machines
with 2.6.29: the last 4 cores are out-of-range.
It appears that this is caused by set_thread_constraints() passing a
wrong pointer to read_mask() when trying to gather maxproccpu and
maxprocnode from /proc/self/status. It points to the second character
of the mask instead of the first one, thus loosing one "f", which means
4 cores are lost.
The kernel code generating the "Cpus_allowed:" and "Mems_allowed:" masks
in /proc/self/status has changed recently, so maybe the formatting
changed a bit (whitespaces?).
The patch below fixes this problem by just passing a pointer to the first
character after ":" instead of trying to guess howmany whitespaces follow,
since read_mask/strtoul are able to skip whitespaces anyway.
By the way, I think it would be better to parse
/sys/devices/system/node/node*/cpumap
instead of some lines of /proc/self/status...
Signed-off-by: Brice Goglin <[email protected]>
diff -ur numactl-2.0.3~rc1/libnuma.c numactl-2.0.3~rc1.save/libnuma.c
--- numactl-2.0.3~rc1/libnuma.c 2008-12-09 20:38:07.000000000 +0100
+++ numactl-2.0.3~rc1.save/libnuma.c 2009-04-21 15:44:19.000000000 +0200
@@ -479,11 +479,11 @@
while (getline(&buffer, &buflen, f) > 0) {
if (strncmp(buffer,"Cpus_allowed:",13) == 0)
- maxproccpu = read_mask(buffer + 15, numa_all_cpus_ptr);
+ maxproccpu = read_mask(buffer + 13, numa_all_cpus_ptr);
if (strncmp(buffer,"Mems_allowed:",13) == 0) {
maxprocnode =
- read_mask(buffer + 15, numa_all_nodes_ptr);
+ read_mask(buffer + 13, numa_all_nodes_ptr);
}
}
fclose(f);
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.29-1-amd64 (SMP w/16 CPU cores)
Locale: LANG=C, lc_ctype=fr...@euro (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash
Versions of packages libnuma1 depends on:
ii libc6 2.9-4 GNU C Library: Shared libraries
libnuma1 recommends no packages.
libnuma1 suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
Source: numactl
Source-Version: 2.0.3~rc3-1
We believe that the bug you reported is fixed in the latest version of
numactl, which is due to be installed in the Debian FTP archive:
libnuma-dbg_2.0.3~rc3-1_i386.deb
to pool/main/n/numactl/libnuma-dbg_2.0.3~rc3-1_i386.deb
libnuma-dev_2.0.3~rc3-1_i386.deb
to pool/main/n/numactl/libnuma-dev_2.0.3~rc3-1_i386.deb
libnuma1_2.0.3~rc3-1_i386.deb
to pool/main/n/numactl/libnuma1_2.0.3~rc3-1_i386.deb
numactl_2.0.3~rc3-1.diff.gz
to pool/main/n/numactl/numactl_2.0.3~rc3-1.diff.gz
numactl_2.0.3~rc3-1.dsc
to pool/main/n/numactl/numactl_2.0.3~rc3-1.dsc
numactl_2.0.3~rc3-1_i386.deb
to pool/main/n/numactl/numactl_2.0.3~rc3-1_i386.deb
numactl_2.0.3~rc3.orig.tar.gz
to pool/main/n/numactl/numactl_2.0.3~rc3.orig.tar.gz
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Ian Wienand <[email protected]> (supplier of updated numactl package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.8
Date: Thu, 30 Apr 2009 08:04:32 -0700
Source: numactl
Binary: numactl libnuma1 libnuma-dev libnuma-dbg
Architecture: source i386
Version: 2.0.3~rc3-1
Distribution: unstable
Urgency: low
Maintainer: Ian Wienand <[email protected]>
Changed-By: Ian Wienand <[email protected]>
Description:
libnuma-dbg - Debug package for libnuma
libnuma-dev - Development files for libnuma
libnuma1 - Libraries for controlling NUMA policy
numactl - NUMA scheduling and memory placement tool
Closes: 525014
Changes:
numactl (2.0.3~rc3-1) unstable; urgency=low
.
* New upstream (Closes: #525014)
* Move libnuma-dbg to debug section
* Add ${misc:Depends} deps to packages
* Update to standards version to 3.8.1
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