Mr. Junjiro R. Okajima, Mr. Michael S. Zick,
thanks for your answers concerning the AUFS kernel messages.
Mr. Michael S. Zick,
1. Kernel messages
you are right, I use a Debian based Linux distribution. Thanks for
your comprehensive explanation concerning the impact of the PAM
module pam-mount on AUFS. I checked the system and couldn't find
any usage of pam-mount. First I run the following command to find
an installed binary package with libpam_mount.so:
$> dpkg -S libpam_mount
The answer was void. No libpam_mount* is installed on the system.
Next I looked into the following directories and there configuration
files:
- /etc/security I found only the file pam_env.conf. In the file
I couldn't find any hint on pam_mount.
- /etc/pam.d No of the files in that directory provides
somethings like pam_mount.
No hint on the configuration file pam_mount.conf.xml in
/etc/security or in ~/.
Thanks again for your engagement.
Mr. Junjiro R. Okajima,
1. Kernel messages
The script gdm is a init script from /etc/init.d. This starts the
Debian GNOME Display Manager. The following lines show the contents
of /etc/init.d/gdm:
#! /bin/sh
### BEGIN INIT INFO
# Provides: gdm
# Should-Start: console-screen kbd acpid dbus hal \
network-manager
# Required-Start: $local_fs $remote_fs x11-common
# Required-Stop: $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: GNOME Display Manager
# Description: Debian init script for the GNOME Display \
Manager
### END INIT INFO
#
# Author: Ryan Murray <[email protected]>
#
set -e
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/gdm
test -x $DAEMON || exit 0
if [ -r /etc/default/locale ]; then
. /etc/default/locale
export LANG LANGUAGE
fi
. /lib/lsb/init-functions
# To start gdm even if it is not the default display manager, change
# HEED_DEFAULT_DISPLAY_MANAGER to "false."
HEED_DEFAULT_DISPLAY_MANAGER=true
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager
case "$1" in
start)
CONFIGURED_DAEMON=$(basename \
"$(cat $DEFAULT_DISPLAY_MANAGER_FILE 2> /dev/null)")
if grep -wqs text /proc/cmdline; then
log_warning_msg "Not starting GNOME Display Manager (gdm); \
found 'text' in kernel commandline."
elif [ -e "$DEFAULT_DISPLAY_MANAGER_FILE" ] && \
[ "$HEED_DEFAULT_DISPLAY_MANAGER" = "true" ] && \
[ "$CONFIGURED_DAEMON" != gdm ] ; then
log_action_msg "Not starting GNOME Display Manager; \
it is not the default display manager"
else
log_daemon_msg "Starting GNOME Display Manager" "gdm"
start_daemon $DAEMON
log_end_msg $?
fi
;;
stop)
log_daemon_msg "Stopping GNOME Display Manager" "gdm"
set +e
start-stop-daemon --stop --quiet --pidfile /var/run/gdm.pid \
--name gdm --retry 5
set -e
log_end_msg $?
;;
reload)
log_daemon_msg \
"Scheduling reload of GNOME Display Manager configuration" \
"gdm"
set +e
start-stop-daemon --stop --signal USR1 --quiet --pidfile \
/var/run/gdm.pid --name gdm
set -e
log_end_msg $?
;;
status)
status_of_proc -p "$PIDFILE" "$DAEMON" gdm && exit 0 || exit $?
;;
restart|force-reload)
$0 stop
$0 start
;;
*)
echo "Usage: /etc/init.d/gdm \
{start|stop|restart|reload|force-reload|status}"
exit 1
;;
esac
exit 0
Maybe this script starts other processes that interfere with AUFS.
After the GNOME Desktop session log in I listed all running
processes with the following command:
$> sudo ps aux | less -SM
The following lines show all processes that were created during
the GNOME Desktop session log in. Maybe one of these processes
interfered with AUFS:
USER PID COMMAND
user 8849 /usr/bin/gnome-keyring-daemon --daemonize --login
user 8861 x-session-manager
user 8906 /usr/bin/ssh-agent \
/usr/bin/dbus-launch \
--exit-with-session x-session-manager
user 8909 /usr/bin/dbus-launch \
--exit-with-session x-session-manager
user 8910 /usr/bin/dbus-daemon \
--fork --print-pid 5 --print-address 8 --session
user 8915 /usr/lib/libgconf2-4/gconfd-2
user 8923 gnome-power-manager
user 8928 /usr/lib/gnome-settings-daemon/gnome-settings-daemon
root 8932 /usr/lib/upower/upowerd
user 8954 /usr/lib/gvfs/gvfsd
user 8958 /usr/bin/metacity
user 8977 /usr/lib/gvfs/gvfs-gdu-volume-monitor
root 8996 /usr/lib/udisks/udisks-daemon
user 9003 gnome-panel
root 9006 udisks-daemon: polling \
/dev/sr0 /dev/sdb /dev/sdc /dev/sdd /dev/sde
user 9021 nautilus
user 9024 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
user 9027 /usr/lib/bonobo-activation/bonobo-activation-server \
--ac-activate --ior-output-fd=20
user 9031 /usr/lib/gvfs/gvfs-afc-volume-monitor
user 9037 update-notifier
user 9038 /usr/lib/evolution/3.0/evolution-alarm-notify
user 9040 kerneloops-applet
user 9042 /usr/lib/policykit-1-gnome\
/polkit-gnome-authentication-agent-1
user 9051 bluetooth-applet
user 9053 /usr/lib/notification-daemon/notification-daemon
user 9054 nm-applet --sm-disable
user 9056 python /usr/bin/system-config-printer-applet
user 9065 /usr/lib/gnome-disk-utility/gdu-notification-daemon
user 9085 /usr/lib/gnome-applets/mixer_applet2 \
--oaf-activate-iid=OAFIID:GNOME_MixerApplet_Factory \
--oaf-ior-fd=24
user 9086 /usr/lib/gnome-applets/cpufreq-applet \
--oaf-activate-iid=OAFIID:GNOME_CPUFreqApplet_Factory \
--oaf-ior-fd=18
user 9089 gnome-screensaver
user 9094 /usr/lib/gvfs/gvfsd-trash --spawner :1.13 \
/org/gtk/gvfs/exec_spaw/0
user 9101 /usr/lib/gvfs/gvfsd-burn --spawner :1.13 \
/org/gtk/gvfs/exec_spaw/1
root 9113 /usr/bin/python /usr/sbin/aptd
The next lines show the AUFS kernel message that was created during
the above GNOME Desktop session log in:
[11771.764716] aufs au_opts_parse:1039:mount[9011]: unknown option
errors=remount-ro
[11771.771709] aufs au_opts_parse:1039:mount[9013]: unknown option
commit=0
[11771.775236] aufs au_opts_parse:1039:mount[9015]: unknown option
commit=0
[11771.782918] aufs au_opts_parse:1039:mount[9017]: unknown option
commit=0
[11771.796819] aufs au_opts_parse:1039:mount[9018]: unknown option
commit=0
[11771.812259] aufs au_opts_parse:1039:mount[9019]: unknown option
commit=0
Maybe the above data could help to understand why AUFS generated
the above kernel messages.
I would be very glad, if you could find some time to answer my
questions. Thanks a lot in advanced.
Regards,
Robert Wotzlaw
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