On Dec 16, Michael Meskes wrote:
> What happens if you stop watchdog, does the process go away? Or if you happen
> to reboot, does that change things? I'm wondering if the old process stays in
> the way and thus may need to be killed manually. I have it that before, that
> processes do not disappear despite being stopped via systemctl.
No, the process is stopped properly. systemctl start and stop
work as expected, only systemctl restart fails.
Stop / start:
# systemctl status watchdog
● watchdog.service - watchdog daemon
Loaded: loaded (/lib/systemd/system/watchdog.service; enabled)
Active: active (running) since Thu 2014-12-11 14:44:09 CET; 4 days ago
Main PID: 30954 (watchdog)
CGroup: /system.slice/watchdog.service
└─30954 /usr/sbin/watchdog
Dec 11 14:44:09 grappa watchdog[30954]: starting daemon (5.14):
Dec 11 14:44:09 grappa watchdog[30954]: int=1s realtime=yes sync=no soft=no
mla=0 mem=0
Dec 11 14:44:09 grappa watchdog[30954]: ping: no machine to check
Dec 11 14:44:09 grappa watchdog[30954]: file: no file to check
Dec 11 14:44:09 grappa watchdog[30954]: pidfile: no server process to check
Dec 11 14:44:09 grappa watchdog[30954]: interface: no interface to check
Dec 11 14:44:09 grappa watchdog[30954]: temperature: no sensors to check
Dec 11 14:44:09 grappa watchdog[30954]: test=none(0) repair=none(0)
alive=/dev/watchdog heartbeat=none to=root no_act=no force=no
Dec 11 14:44:09 grappa watchdog[30954]: cannot set timeout 60 (errno = 22 =
'Invalid argument')
Dec 11 14:44:09 grappa watchdog[30954]: hardware watchdog identity: INTCAMT
# ps ax|grep watchdog
10 ? S 0:01 [watchdog/0]
11 ? S 0:02 [watchdog/1]
28719 pts/4 S+ 0:00 grep watchdog
30954 ? SLs 0:17 /usr/sbin/watchdog
# systemctl stop watchdog
# systemctl status watchdog
● watchdog.service - watchdog daemon
Loaded: loaded (/lib/systemd/system/watchdog.service; enabled)
Active: inactive (dead) since Tue 2014-12-16 13:32:38 CET; 7s ago
Process: 28726 ExecStopPost=/bin/sh -c [ $run_wd_keepalive != 1 ] || false
(code=exited, status=1/FAILURE)
Main PID: 30954 (code=exited, status=0/SUCCESS)
Dec 11 14:44:09 grappa watchdog[30954]: file: no file to check
Dec 11 14:44:09 grappa watchdog[30954]: pidfile: no server process to check
Dec 11 14:44:09 grappa watchdog[30954]: interface: no interface to check
Dec 11 14:44:09 grappa watchdog[30954]: temperature: no sensors to check
Dec 11 14:44:09 grappa watchdog[30954]: test=none(0) repair=none(0)
alive=/dev/watchdog heartbeat=none to=root no_act=no force=no
Dec 11 14:44:09 grappa watchdog[30954]: cannot set timeout 60 (errno = 22 =
'Invalid argument')
Dec 11 14:44:09 grappa watchdog[30954]: hardware watchdog identity: INTCAMT
Dec 16 13:32:33 grappa watchdog[30954]: stopping daemon (5.14)
Dec 16 13:32:38 grappa systemd[1]: watchdog.service: control process exited,
code=exited status=1
Dec 16 13:32:38 grappa systemd[1]: Unit watchdog.service entered failed state.
# ps ax|grep watchdog
10 ? S 0:01 [watchdog/0]
11 ? S 0:02 [watchdog/1]
28746 pts/4 S+ 0:00 grep watchdog
# systemctl start watchdog
# systemctl status watchdog
● watchdog.service - watchdog daemon
Loaded: loaded (/lib/systemd/system/watchdog.service; enabled)
Active: active (running) since Tue 2014-12-16 13:32:59 CET; 20s ago
Process: 28726 ExecStopPost=/bin/sh -c [ $run_wd_keepalive != 1 ] || false
(code=exited, status=1/FAILURE)
Process: 28756 ExecStart=/bin/sh -c [ $run_watchdog != 1 ] || exec
/usr/sbin/watchdog $watchdog_options (code=exited, status=0/SUCCESS)
Process: 28753 ExecStartPre=/bin/sh -c [ -z "${watchdog_module}" ] || [
"${watchdog_module}" = "none" ] || /sbin/modprobe $watchdog_module
(code=exited, status=0/SUCCESS)
Main PID: 28758 (watchdog)
CGroup: /system.slice/watchdog.service
└─28758 /usr/sbin/watchdog
Dec 16 13:32:59 grappa watchdog[28758]: starting daemon (5.14):
Dec 16 13:32:59 grappa watchdog[28758]: int=1s realtime=yes sync=no soft=no
mla=0 mem=0
Dec 16 13:32:59 grappa watchdog[28758]: ping: no machine to check
Dec 16 13:32:59 grappa watchdog[28758]: file: no file to check
Dec 16 13:32:59 grappa watchdog[28758]: pidfile: no server process to check
Dec 16 13:32:59 grappa watchdog[28758]: interface: no interface to check
Dec 16 13:32:59 grappa watchdog[28758]: temperature: no sensors to check
Dec 16 13:32:59 grappa watchdog[28758]: test=none(0) repair=none(0)
alive=/dev/watchdog heartbeat=none to=root no_act=no force=no
Dec 16 13:32:59 grappa watchdog[28758]: cannot set timeout 60 (errno = 22 =
'Invalid argument')
Dec 16 13:32:59 grappa watchdog[28758]: hardware watchdog identity: INTCAMT
# ps ax|grep watchdog
10 ? S 0:01 [watchdog/0]
11 ? S 0:02 [watchdog/1]
28758 ? SLs 0:00 /usr/sbin/watchdog
28762 pts/4 S+ 0:00 grep watchdog
Restart:
# systemctl restart watchdog
Job for watchdog.service canceled.
# systemctl status watchdog
● watchdog.service - watchdog daemon
Loaded: loaded (/lib/systemd/system/watchdog.service; enabled)
Active: inactive (dead) since Tue 2014-12-16 13:34:04 CET; 6s ago
Process: 28766 ExecStopPost=/bin/sh -c [ $run_wd_keepalive != 1 ] || false
(code=exited, status=1/FAILURE)
Process: 28756 ExecStart=/bin/sh -c [ $run_watchdog != 1 ] || exec
/usr/sbin/watchdog $watchdog_options (code=exited, status=0/SUCCESS)
Process: 28753 ExecStartPre=/bin/sh -c [ -z "${watchdog_module}" ] || [
"${watchdog_module}" = "none" ] || /sbin/modprobe $watchdog_module
(code=exited, status=0/SUCCESS)
Main PID: 28758 (code=exited, status=0/SUCCESS)
Dec 16 13:32:59 grappa watchdog[28758]: file: no file to check
Dec 16 13:32:59 grappa watchdog[28758]: pidfile: no server process to check
Dec 16 13:32:59 grappa watchdog[28758]: interface: no interface to check
Dec 16 13:32:59 grappa watchdog[28758]: temperature: no sensors to check
Dec 16 13:32:59 grappa watchdog[28758]: test=none(0) repair=none(0)
alive=/dev/watchdog heartbeat=none to=root no_act=no force=no
Dec 16 13:32:59 grappa watchdog[28758]: cannot set timeout 60 (errno = 22 =
'Invalid argument')
Dec 16 13:32:59 grappa watchdog[28758]: hardware watchdog identity: INTCAMT
Dec 16 13:33:59 grappa watchdog[28758]: stopping daemon (5.14)
Dec 16 13:34:04 grappa systemd[1]: watchdog.service: control process exited,
code=exited status=1
Dec 16 13:34:04 grappa systemd[1]: Unit watchdog.service entered failed state.
# ps ax|grep watchdog
10 ? S 0:01 [watchdog/0]
11 ? S 0:02 [watchdog/1]
28783 pts/4 S+ 0:00 grep watchdog
> > PS: The old config file /etc/default/watchdog seems not to be
> > properly removed from the package, dpkg -s still lists it (as
> > obsolete). See also the "Configuration Files" section below.
The config file is still referenced in the package database:
# dpkg -S /etc/default/watchdog
watchdog: /etc/default/watchdog
# dpkg -s watchdog
Package: watchdog
Status: install ok installed
Priority: extra
Section: admin
Installed-Size: 196
Maintainer: Michael Meskes <[email protected]>
Architecture: i386
Version: 5.14-3
Depends: libc6 (>= 2.7), debconf (>= 0.5) | debconf-2.0, init-system-helpers
(>= 1.18~), makedev (>= 2.3.1-24) | udev, lsb-base (>= 3.2-14)
Conffiles:
/etc/init.d/watchdog 350ab37d9e081970c491adb488c29d17
/etc/init.d/wd_keepalive d2f8e84bd91ffd2c5b5ac07774fb751b
/etc/watchdog.conf bd071fbb51fb2f9ee807af043111ba27
/etc/default/watchdog f6517ce4745ab05fd8cd4da1a39e5906 obsolete
Description: system health checker and software/hardware watchdog handler
There's a mechanism to properly remove a config file from the
package database on a package upgrade, but I don't know the
details.
I'm going to purge and reinstall the package, that should at
least solve the problem of the obsolete config file locally.
Regards
Uwe
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