WebGUI - wremonitor symbol lookup error - Content Management System Website - CMS - Open Source Content Management System Website - Website System - Content Management System (CMS) | Open Source Content Management Software | Application Framework | WebGUI - Content Management System Website | CMS | WebGUI | Open Source Content Management System Website

Username Password

Home Features Sightings Download Partners Community

Community Support
Wiki
Forums
Report A Bug
Request Features
WebGUI 8
WebGUI TV
Marketplace
Calendar
webGUI in the news
Karma
API Docs
Roadmap
the people behind wg
webgui worldwide
Mascot
wallpapers
Stats
powered by icons

View All Tickets

wremonitor symbol lookup error (#10021)

Issue

After upgrading to WRE 0.9.1 we get a mail every 3 minutes with the following content:

/data/wre/prereqs/bin/perl: symbol lookup error: /data/wre/prereqs/lib/perl5/site_perl/5.10.0/i686-linux/auto/Proc/ProcessTable/ProcessTable.so: undefined symbol: pthread_once

Can't say if it's harmful or not, but definitely annoying!

Solution Summary

Downgraded Proc-ProcessTable from 0.45 to 0.44 due to bug in perl module.

Comments

koen 4/2/2009 7:54 am	What OS? Have you compiled the WRE yourself?
BNC 4/2/2009 8:03 am	OS is SLES10.2, and we installed the precompiled WRE for SLES following the upgrade instructions in the wiki...
koen 4/7/2009 7:13 am	The problem is with this module: http://search.cpan.org/dist/Proc-ProcessTable/ It looks to me like that module tries to use the pthread_once if OS==Linux because: /data/wrebuild/source/perlmodules/Proc-ProcessTable-0.45/os$ grep pthread * Linux.c:#include <pthread.h> /* pthead_once */ Linux.c:static pthread_once_t globals_init = PTHREAD_ONCE_INIT; Linux.c: pthread_once(&globals_init, init_static_vars);
koen 4/7/2009 7:36 am	This file http://cpansearch.perl.org/src/DURIST/Proc-ProcessTable-0.45/Changes could have something to do with it: 0.45 Mon Sep 8 09:13:14 MDT 2008 -Patch from Milosz Tanski <mtanski@gridapp.com> to make module thread-safe on linux (rt.cpan.org ID 38709).
koen 4/7/2009 7:43 am	Perhaps a downgrade to version 0.44 will help.
koen 4/7/2009 7:45 am	To be complete, the e-mail you are getting is being sent by cron since when cron calls: /data/wre/sbin# /data/wre/sbin/wremonitor.pl /data/wre/prereqs/bin/perl: symbol lookup error: /data/wre/prereqs/lib/perl5/site_perl/5.10.0/i686-linux/auto/Proc/ProcessTable/ProcessTable.so: undefined symbol: pthread_once
koen 4/7/2009 7:49 am	Indeed downgrading to version 0.44 solves the problem.
koen 4/7/2009 7:52 am	Deeper diving into the Proc::ProcessTable shows me: http://rt.cpan.org/Public/Bug/Display.html?id=41397
koen 4/7/2009 9:50 am	fixed in SVN
koen 4/7/2009 9:51 am	Resolved by koen

Details

Ticket Status	Resolved
Rating
Submitted By	BNC
Date Submitted	2009-03-25
Assigned To	koen
Date Assigned	2009-04-07
Assigned By	Graham
Severity	Minor (annoying, but not harmful)
What's the bug in?	WRE
WebGUI / WRE Version	0.9.1
URL	bugs/tracker/10021

Keywords

Ticket History

4/7/2009 9:51 AM	Resolved	koen
4/7/2009 8:06 AM	Assigned to koen	Graham
3/25/2009 8:39 AM	Ticket created	BNC