Debian Bug report logs -
#630772
dkms: "Use of uninitialized value" perl warning when removing a kernel with virtualbox modules
Reported by: Raphael Hertzog <hertzog@debian.org>
Date: Fri, 17 Jun 2011 09:06:25 UTC
Severity: normal
Found in version dkms/2.1.1.2-6
Done: Aron Xu <aron@debian.org>
Bug is archived. No further changes may be made.
Toggle useless messages
Report forwarded
to debian-bugs-dist@lists.debian.org, virtualbox@packages.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Fri, 17 Jun 2011 09:06:28 GMT) (full text, mbox, link).
Acknowledgement sent
to Raphael Hertzog <hertzog@debian.org>:
New Bug report received and forwarded. Copy sent to virtualbox@packages.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Fri, 17 Jun 2011 09:06:29 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Package: dkms
Version: 2.1.1.2-6
Severity: normal
When removing an obsolete kernel, I got 6 warnings like this one:
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 3.
I don't know if dkms is at fault or if it's virtualbox that is not using dkms correctly.
See the log below:
$ sudo apt-get purge linux-headers-2.6.39-1-amd64 linux-headers-2.6.39-1-common linux-image-2.6.39-1-amd64
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances
Lecture des informations d'état... Fait
Le paquet suivant a été installé automatiquement et n'est plus nécessaire :
libntfs10
Veuillez utiliser « apt-get autoremove » pour les supprimer.
Les paquets suivants seront ENLEVÉS :
linux-headers-2.6.39-1-amd64* linux-headers-2.6.39-1-common* linux-image-2.6.39-1-amd64*
0 mis à jour, 0 nouvellement installés, 3 à enlever et 1 non mis à jour.
Après cette opération, 139 Mo d'espace disque seront libérés.
Souhaitez-vous continuer [O/n] ?
(Lecture de la base de données... 306758 fichiers et répertoires déjà installés.)
Suppression de linux-headers-2.6.39-1-amd64 ...
Suppression de linux-headers-2.6.39-1-common ...
Suppression de linux-image-2.6.39-1-amd64 ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 2.6.39-1-amd64 /boot/vmlinuz-2.6.39-1-amd64
dkms: removing: virtualbox 4.0.8 (2.6.39-1-amd64) (x86_64)
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 3.
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 9.
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 11.
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 18.
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 25.
Use of uninitialized value $command in lc at /usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 33.
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 2.6.39-1-amd64 /boot/vmlinuz-2.6.39-1-amd64
update-initramfs: Deleting /boot/initrd.img-2.6.39-1-amd64
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 2.6.39-1-amd64 /boot/vmlinuz-2.6.39-1-amd64
Generating grub.cfg ...
-- System Information:
Debian Release: wheezy/sid
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (150, 'experimental')
Architecture: i386 (x86_64)
Kernel: Linux 2.6.39-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages dkms depends on:
ii build-essential 11.5 Informational list of build-essent
ii coreutils 8.5-1 GNU core utilities
ii dpkg-dev 1.16.1 Debian package development tools
ii gcc 4:4.6.0-5 The GNU C compiler
ii make 3.81-8.1 An utility for Directing compilati
ii module-init-tools 3.16-1 tools for managing Linux kernel mo
ii patch 2.6.1-2 Apply a diff file to an original
Versions of packages dkms recommends:
ii fakeroot 1.16-1 tool for simulating superuser priv
ii linux-headers-2.6-amd64 [lin 2.6.39+35.1 Header files for Linux 2.6-amd64 (
ii linux-headers-2.6.32-5-amd64 2.6.32-35 Header files for Linux 2.6.32-5-am
ii linux-headers-2.6.38-2-amd64 2.6.38-5 Header files for Linux 2.6.38-2-am
ii linux-headers-2.6.39-2-amd64 2.6.39-2 Header files for Linux 2.6.39-2-am
ii linux-image-2.6.32-5-amd64 [ 2.6.32-35 Linux 2.6.32 for 64-bit PCs
ii linux-image-2.6.38-2-amd64 [ 2.6.38-5 Linux 2.6.38 for 64-bit PCs
ii linux-image-2.6.39-2-amd64 [ 2.6.39-2 Linux 2.6.39 for 64-bit PCs
ii menu 2.1.45 generates programs menu for all me
ii sudo 1.7.4p6-1 Provide limited super user privile
dkms suggests no packages.
-- no debconf information
--
Raphaël Hertzog ◈ Debian Developer
Follow my Debian News ▶ http://RaphaelHertzog.com (English)
▶ http://RaphaelHertzog.fr (Français)
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Sat, 06 Aug 2011 06:03:05 GMT) (full text, mbox, link).
Acknowledgement sent
to dj_palindrome <dj_palindrome@comcast.net>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Sat, 06 Aug 2011 06:03:05 GMT) (full text, mbox, link).
Message #10 received at 630772@bugs.debian.org (full text, mbox, reply):
Dear Mr. Hertzog,
I don't know the source of the issue either, but I'm pretty sure it
isn't confined in scope to VirtualBox, since I get an even longer, more
annoying, and more time-consuming cascade of such messages when dkms
removes other modules (in this case, xtables-addons), also while purging
old kernels:
Removing linux-image-3.0-1.slh.1-aptosid-amd64 ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.0-1.slh.1-aptosid-amd64
/boot/vmlinuz-3.0-1.slh.1-aptosid-amd64
dkms: removing: vboxguest 4.1.0 (3.0-1.slh.1-aptosid-amd64) (x86_64)
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 3.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 9.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 11.
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 18.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 19.
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 26.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 27.
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 34.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 36.
dkms: removing: xtables-addons 1.35 (3.0-1.slh.1-aptosid-amd64) (x86_64)
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 38.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 44.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 46.
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 53.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 54.
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1824: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
/usr/sbin/dkms: line 1880: echo: write error: Broken pipe
/usr/sbin/dkms: line 1882: echo: write error: Broken pipe
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 61.
Use of uninitialized value $command in lc at
/usr/share/perl5/Debconf/ConfModule.pm line 123, <GEN0> line 62.
[I've spared you the rest]
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Fri, 14 Oct 2011 02:54:03 GMT) (full text, mbox, link).
Acknowledgement sent
to Phil Miller <mille121@illinois.edu>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Fri, 14 Oct 2011 02:54:03 GMT) (full text, mbox, link).
Message #15 received at 630772@bugs.debian.org (full text, mbox, reply):
I'm seeing the same issue on debconf 1.5.41 and dkms 2.2.0.2-1, with
some variation in the versions and line numbers involved:
Errors appear after "Removing linux-image-2.6.39-2-amd64
virtualbox is version 4.1.2, and the lines reporting the error are
3
9
11
18
19
26
27
34
35
42
44
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Sat, 10 Dec 2011 20:03:06 GMT) (full text, mbox, link).
Acknowledgement sent
to Bob Vincent <bobvin@pillars.net>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Sat, 10 Dec 2011 20:03:06 GMT) (full text, mbox, link).
Message #20 received at 630772@bugs.debian.org (full text, mbox, reply):
I fixed this locally as follows:
--- /usr/share/perl5/Debconf/ConfModule.pm~ 2011-06-23
03:01:31.000000000 -0400
+++ /usr/share/perl5/Debconf/ConfModule.pm 2011-12-10
14:45:22.500307649 -0500
@@ -112,7 +112,9 @@
my $this=shift;
debug developer => "<-- $_";
- return 1 unless defined && ! /^\s*#/; # Skip blank lines, comments.
+ return 1 unless defined; # Skip empty input.
+ return 1 if /^\s*$/; # Skip blank lines.
+ return 1 if /^\s*#/; # Skip comments.
chomp;
my ($command, @params);
if (defined $this->client_capb and grep { $_ eq 'escape' }
@{$this->client_capb}) {
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Tue, 13 Mar 2012 10:21:08 GMT) (full text, mbox, link).
Acknowledgement sent
to Ralf Jung <ralfjung-e@gmx.de>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Tue, 13 Mar 2012 10:21:13 GMT) (full text, mbox, link).
Message #25 received at 630772@bugs.debian.org (full text, mbox, reply):
I am still seeing those messages with the current dkms from testing
(2.2.0.3-1). Are they harmless or is something broken by them?
Also, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637737 seemsto be the
same (or a very similar) bug.
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Sat, 05 Oct 2013 21:00:04 GMT) (full text, mbox, link).
Acknowledgement sent
to Marc Meledandri <m.meledandri@gmail.com>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Sat, 05 Oct 2013 21:00:04 GMT) (full text, mbox, link).
Message #30 received at 630772@bugs.debian.org (full text, mbox, reply):
This issue is ongoing, still present in Debian 7.1 Wheezy:
Log started: 2013-10-05 13:50:46
(Reading database ... 223686 files and directories currently installed.)
Removing linux-headers-3.10.13+mfm ...
Purging configuration files for linux-headers-3.10.13+mfm ...
Removing linux-image-3.10.13+mfm ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.10.13+mfm
/boot/vmlinuz-3.10.13+mfm
dkms: removing: nvidia-current 325.15 (3.10.13+mfm) (x86_64)
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
dkms: removing: vboxhost 4.1.26 (3.10.13+mfm) (x86_64)
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
/usr/sbin/dkms: line 1874: echo: write error: Broken pipe
/usr/sbin/dkms: line 1876: echo: write error: Broken pipe
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.10.13+mfm
/boot/vmlinuz-3.10.13+mfm
update-initramfs: Deleting /boot/initrd.img-3.10.13+mfm
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.10.13+mfm
/boot/vmlinuz-3.10.13+mfm
Generating grub.cfg ...
Found background image: grub2-hash-bang-background.png
Found linux image: /boot/vmlinuz-3.10.15+mfm
Found initrd image: /boot/initrd.img-3.10.15+mfm
Found linux image: /boot/vmlinuz-3.4.63+mfm
Found initrd image: /boot/initrd.img-3.4.63+mfm
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
Found Windows 7 (loader) on /dev/sda1
done
Purging configuration files for linux-image-3.10.13+mfm ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.10.13+mfm
/boot/vmlinuz-3.10.13+mfm
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.10.13+mfm
/boot/vmlinuz-3.10.13+mfm
Log ended: 2013-10-05 13:50:59
Information forwarded
to debian-bugs-dist@lists.debian.org, Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>:
Bug#630772; Package dkms.
(Thu, 29 Jan 2015 03:48:05 GMT) (full text, mbox, link).
Acknowledgement sent
to Elliott Mitchell <ehem+debian@m5p.com>:
Extra info received and forwarded to list. Copy sent to Dynamic Kernel Modules Support Team <pkg-dkms-maint@lists.alioth.debian.org>.
(Thu, 29 Jan 2015 03:48:05 GMT) (full text, mbox, link).
Message #35 received at 630772@bugs.debian.org (full text, mbox, reply):
Looking at bugs #630772 and #637737, even though a number of people have
suggested they are one bug, they look pretty clearly distinct to me.
#630772 is some variables being uninitialized in
/usr/share/perl5/Debconf/ConfModule.pm, this may be a failure in dkms,
but could potentially be a bug in debconf. If this was in debconf, it
may already be fixed.
Meanwhile #637737 is very much an issue of attempting to write to stdout
after it has been closed and the bug is *definitely* in /usr/sbin/dkms.
Unsurprisingly, I'm seeing bug #637737 occur, but *not* #630772. I
suspect one or both bugs should be promoted to important severity given
the number of people seeing these occur.
--
(\___(\___(\______ --=> 8-) EHM <=-- ______/)___/)___/)
\BS ( | EHeM+sigmsg@m5p.com PGP 87145445 | ) /
\_CS\ | _____ -O #include <stddisclaimer.h> O- _____ | / _/
8A19\___\_|_/58D2 7E3D DDF4 7BA6 <-PGP-> 41D1 B375 37D0 8714\_|_/___/5445
Reply sent
to Aron Xu <aron@debian.org>:
You have taken responsibility.
(Sun, 03 Jul 2016 15:57:09 GMT) (full text, mbox, link).
Notification sent
to Raphael Hertzog <hertzog@debian.org>:
Bug acknowledged by developer.
(Sun, 03 Jul 2016 15:57:09 GMT) (full text, mbox, link).
Message #40 received at 630772-close@bugs.debian.org (full text, mbox, reply):
This bug is in debconf package, and should be fixed already, closing.
Regards,
Aron
Bug archived.
Request was from Debbugs Internal Request <owner@bugs.debian.org>
to internal_control@bugs.debian.org.
(Mon, 01 Aug 2016 07:52:53 GMT) (full text, mbox, link).
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