I think a Perl package may be the culprit, rather than apache2.
** Changed in: apache2 (Ubuntu)
Status: New => Invalid
** Description changed:
-
- After connecting to an Oracle database (through Catalyst and DBIx::Class) in
a Perl script run through PerlRequire or PerlPostConfigRequire, apache2 will
silently die. No error messages show up in the error.log.
+ After connecting to an Oracle database (through Catalyst and
+ DBIx::Class) in a Perl script run through PerlRequire or
+ PerlPostConfigRequire, apache2 will silently die. No error messages
+ show up in the error.log.
If Apache2::ServerUtil::restart_count() is used to only run the database
connection in restart 2 or greater, apache2 will run as normal.
However, if apache2 is restarted using apache2ctl restart, an error
message like this is generated:
[Fri Dec 02 00:35:09 2011] [notice] seg fault or similar nasty error
detected in the parent process
This problem was seen using DBD::Oracle 1.28 and Oracle Instant Client
11.2.0.1.0.
I was not able to produce a core dump, but I am not 100% sure that I
know how to do this in apache2. I tried setting enabled=1 in
/etc/default/apport, starting apport, running 'sudo -s ulimit -c
unlimited', and adding a CoreDumpDirectory directive to apache2.conf.
- I tried the same configuration on Ubuntu 11.11 and apache2
- 2.2.20-1ubuntu1.1, but did not see the crash.
+ I am seeing the same problem on Ubuntu 11.11 with apache2
+ 2.2.20-1ubuntu1.1.
I am not an expert on the internals of apache2, but it looks like this
has something to do with loading Oracle into memory and the way the
database handle is shared between a parent and a child after a fork.
DBIx::Class claims to do "the right thing" with database connections
when forking, but somehow that is not enough with this new build of
apache2.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: apache2-mpm-prefork 2.2.14-5ubuntu8.7
ProcVersionSignature: Ubuntu 2.6.32-35.78-server 2.6.32.46+drm33.20
Uname: Linux 2.6.32-35-server x86_64
Architecture: amd64
Date: Fri Dec 2 01:21:58 2011
InstallationMedia: Ubuntu-Server 10.04.2 LTS "Lucid Lynx" - Release amd64
(20110211.1)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: apache2
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to apache2 in Ubuntu.
https://bugs.launchpad.net/bugs/898927
Title:
apache2-mpm-prefork+mod_perl crashes on start
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/898927/+subscriptions
--
Ubuntu-server-bugs mailing list
Ubuntu-server-bugs@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
