Bug 59126 – mod_perl can't load DBI.pm

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Arne Skjærholt 2004-08-02 02:31:36 UTC]

I just did a sync and update of my system, and due to some problems with CORBA I rebooted (which fixed those problems). Now I can no longer start apache/mod_perl since it cannot load DBI.pm
The following versions of the software is installed:
apache-1.3.29-r1
mod_perl-1.27-r4
perl-5.8.4

Reproducible: Always
Steps to Reproduce:
1. emerge -U system
2. /etc/init.d/apache restart

Actual Results:  
apache refuses to start and dies with the following message:
Can't load module DBI, dynamic loading not available in this perl.
  (You may need to build a new perl executable which either supports
  dynamic loading or has the DBI module statically linked into it.)
 at /usr/lib/perl5/vendor_perl/5.8.2/i686-linux/DBI.pm line 255

Expected Results:  
Apache should have started, with the relevant modules loaded.

Portage 2.0.50-r9 (default-x86-2004.0, gcc-3.3.3, glibc-2.3.3.20040420-r0, 2.6.
5-mm6)
=================================================================
System uname: 2.6.5-mm6 i686 AMD Athlon(tm) XP 2400+
Gentoo Base System version 1.4.16
Autoconf: sys-devel/autoconf-2.59-r4
Automake: sys-devel/automake-1.8.3
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3/
share/config /usr/lib/mozilla/defaults/pref /usr/share/config /var/bind /var/
qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://194.83.57.2/sites/www.ibiblio.org/gentoo/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow X aalib alsa apm avi berkdb cdr crypt cups encode esd foomaticdb gdbm 
gif gnome gpm gtk gtk2 imlib java jpeg libg++ libwww mad maildir mikmod mmx 
motif mozilla mpeg mysql ncurses nls oggvorbis opengl oss pam pdflib perl png 
postgres python quicktime readline sdl slang spell ssl svga tcpd truetype x86 
xml2 xmms xv zlib"

[Comment 1 tklauser 2004-08-02 04:52:53 UTC]

Is there a reason why you use emerge -U system instead of emerge -u system?

[Comment 2 Arne Skjærholt 2004-08-02 05:02:47 UTC]

I occasionaly install ~x86 packages (for a while I needed the ~x86 nvidia drivers), and -U prevents portage from downgrading my unstable packages.
But, reading emerge(1) I see that this file is deprecated, so I'll look into phasing -U out. However running emerge -upv world returns only three packages: gentoo-sources-2.4.26-r6 (which I don't want) and older versions of the nvidia drivers/glx (which I don't want either).

[Comment 3 tklauser 2004-08-03 00:35:45 UTC]

Just unmask the packages you need in /etc/portake/portage.keywords

e.g. put the lines

media-video/nvidia-kernel ~x86
media-video/nvidia-gfx ~x86
x11-base/opengl-update ~x86

into that file to unmask the specified ebuilds. You won't need the -U option anymore with that method.

[Comment 4 Arne Skjærholt 2004-08-03 06:25:34 UTC]

Cheers for that piece of info, but back to the real subject here, any idea why mod_perl is unable to load DBI.pm? I tried a regular shell script, and it has no problems with use DBI at all.

[Comment 5 Dave Monnier 2004-08-03 07:34:15 UTC]

Same problem here.  The resolution was to remerge 

perl, then mod_perl, then DBI  in that order.

I unfortunatly didn't have the chance to work out the cause, it was a production system that needed to come back to life within it's maintenance window.

Hope that helps,
Cheers,
-Dave

[Comment 6 Arne Skjærholt 2004-08-03 07:44:56 UTC]

Thanks for the advice. I'm trying it now, and hopefullyit'll work.

[Comment 7 Arne Skjærholt 2004-08-03 08:46:50 UTC]

That fixed it. Thanks a lot!