Fails to reap children, creating zombies

[András Korn]

Hi,

xfce4-xkb-plugin crashes when reconnecting a USB keyboard (see #420179). xfce4-panel, its parent, doesn't wait() on it, leaving it around as a zombie:

      0 9979 0.0 0.0 8976 924 ? Ss Aug10 0:00 | \_ /usr/sbin/gdm-binary -nodaemon
       0 10236 0.0 0.0 6096 860 ? S Aug10 0:00 | \_ /usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display1
       0 10704 1.6 1.7 392692 68808 tty6 Ss+ Aug10 419:16 | \_ /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-7g1K1R/database
       0 11655 0.0 0.0 9736 436 ? S Aug10 0:00 | \_ /usr/lib/gdm/gdm-session-worker
    1000 11791 0.0 0.0 1836 108 ? Ss Aug10 0:00 | \_ /bin/sh /etc/xdg/xfce4/xinitrc -- /etc/X11/xinit/xserverrc
    1000 11820 0.0 0.0 5032 216 ? Ss Aug10 0:02 | \_ /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session startxfce4
    1000 11834 0.0 0.0 19152 2936 ? S Aug10 22:34 | \_ /usr/bin/xfce4-session
    1000 11845 0.0 0.2 31692 9452 ? S Aug10 20:22 | \_ xfwm4 --sm-client-id 2154c2ace-e753-4cd8-93b3-1da58e1a695e --display :0.0
    1000 11848 0.0 0.1 71916 7672 ? Sl Aug10 0:27 | \_ Thunar --sm-client-id 2d333b0fc-cd19-4379-a850-421bd9c9a7e3 --daemon
    1000 11851 0.1 0.3 35392 13900 ? S Aug10 38:21 | \_ xfce4-panel --sm-client-id 2f72151b0-bf25-40f7-ac55-b7e7552befa5
    1000 11926 0.0 0.1 38852 6388 ? Sl Aug10 0:09 | | \_ /usr/lib/xfce4/panel-plugins/xfce4-menu-plugin socket_id 29360163 name xfce4-menu id 12475150364 display_name Xfce Menu size 24 screen_position 1
    1000 11946 0.0 0.0 24612 2692 ? S Aug10 0:00 | | \_ /usr/lib/xfce4-xfapplet-plugin/xfce4/panel-plugins/xfce4-xfapplet-plugin socket_id 29360164 name xfapplet id 12479995523 display_name XfApplet size 24 screen_position 1
    1000 11947 0.0 0.1 38580 4512 ? Sl Aug10 0:02 | | \_ /usr/lib/xfce4-mixer/xfce4/panel-plugins/xfce4-mixer-plugin socket_id 29360165 name xfce4-mixer-plugin id 12478609282 display_name Mixer size 24 screen_position 1
    1000 11948 0.0 0.0 0 0 ? Z Aug10 22:41 | | \_ [xfce4-xkb-plugi] <defunct>
    1000 11949 0.0 0.1 40436 4600 ? Sl Aug10 0:03 | | \_ /usr/lib/xfce4-mixer/xfce4/panel-plugins/xfce4-mixer-plugin socket_id 29360168 name xfce4-mixer-plugin id 5 display_name Mixer size 24 screen_position 1
    1000 28148 0.0 0.0 0 0 ? Z 23:08 0:00 | | \_ [xfce4-xkb-plugi] <defunct>
    1000 28254 0.6 0.0 0 0 ? Z 23:09 0:05 | | \_ [xfce4-xkb-plugi] <defunct>
    1000 30619 0.0 0.0 0 0 ? Z 23:16 0:00 | | \_ [xfce4-xkb-plugi] <defunct>
    1000 11853 0.0 0.1 40216 6392 ? S Aug10 0:31 | \_ xfdesktop --sm-client-id 209af2a08-3a40-4835-9401-1dab6f4c1caa --display :0.0

I'm running version 4.6.1-3ubuntu1 of xfce4-panel.

Andras

[Launchpad Janitor (janitor)]

This bug was fixed in the package xfce4-panel - 4.7.5-0ubuntu1

---------------
xfce4-panel (4.7.5-0ubuntu1) natty; urgency=low

  * Upload to natty (pkg-xfce svn r4611).

xfce4-panel (4.7.5-1) UNRELEASED; urgency=low

  [ Lionel Le Folgoc ]
  * New upstream development release.
  * debian/control:
    - refreshed (b-)deps for this new major release
    - add myself to Uploaders
    - bump Standards-Version to 3.9.1.
  * debian/NEWS: dropped, unneeded.
  * debian/xfce4-panel.shlibs: refreshed, bump to (>= 4.7.2).
  * debian/xfce4-panel.lintian-overrides: refreshed, new lib name.
  * debian/xfce4-panel.preinst: added, handles removal of old conffiles.
  * debian/xfce4-panel.postinst: explicitly set -e.
  * debian/*.install: refreshed.
  * debian/rules:
    - call dpkg-buildflags
    - dropped rc files mangling as they don't exist anymore
    - updated removal of *.{l,}a files.
  * debian/xfce4-panel.{preinst,postinst,prerm}: use dpkg-maintscript-helper
    to remove pre-xfconf config files.
  * Bugs fixed by 4.7.x/4.8.x series:
    - rgba support lp: #586012
    - disappearing menus lp: #53897
    - xrandr support lp: #176174, Closes: #432914
    - Fails to reap children, creating zombies lp: #420187
    - DND of desktop-files on the panel to create new launchers Closes: #480380

  [ Yves-Alexis Perez ]
  * New upstream development release
  * debian/xfce4-panel.install:
    - install wrapper and migrate tools in xfce4-panel package
    - update plugins paths
  * debian/rules:
    - update path when removing .a/.la files for plugins.
    - add hardening flags to {C,LD}FLAGS
  * debian/control:
    - add build-dep on hardening-includes
 -- Lionel Le Folgoc <email address hidden> Sat, 04 Dec 2010 15:45:53 +0100