Public bug reported:
In certain conditions, stopping OpenVPN doesn't work and the pid removed
while the process is left behind. I noticed this when trying to stop a
newly started connection that fails to establish and keeps dialling.
This problem is Ubuntu specific as in Ubuntu, the init script does this:
stop_vpn () {
kill `cat $PIDFILE` || true
rm -f $PIDFILE
[ "$OMIT_SENDSIGS" -ne 1 ] || rm -f /run/sendsigs.omit.d/openvpn.$NAME.pid
rm -f /var/run/openvpn.$NAME.status 2> /dev/null
log_end_msg 0
}
While in Debian it uses start-stop-daemon that eventually sends a KILL
signal to the unresponsive openvpn pid:
stop_vpn () {
start-stop-daemon --stop --quiet --oknodo \
--pidfile $PIDFILE --exec $DAEMON --retry 5
if [ "$?" -eq 0 ]; then
rm -f $PIDFILE
[ "$OMIT_SENDSIGS" -ne 1 ] || rm -f /run/sendsigs.omit.d/openvpn.$NAME.pid
rm -f /run/openvpn/$NAME.status 2> /dev/null
fi
}
Relevant version information:
$ lsb_release -rd
Description: Ubuntu Trusty Tahr (development branch)
$ apt-cache policy openvpn
openvpn:
Installed: 2.3.2-7ubuntu2
Candidate: 2.3.2-7ubuntu2
Version table:
*** 2.3.2-7ubuntu2 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
Release: 14.04
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: openvpn 2.3.2-7ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jan 29 14:01:05 2014
InstallationDate: Installed on 2014-01-26 (2 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
SourcePackage: openvpn
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.openvpn: [modified]
modified.conffile..etc.openvpn.update.resolv.conf: [modified]
mtime.conffile..etc.default.openvpn: 2014-01-26T19:20:41.158270
mtime.conffile..etc.openvpn.update.resolv.conf: 2012-05-13T16:22:01
** Affects: openvpn (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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Server Team, which is subscribed to openvpn in Ubuntu.
https://bugs.launchpad.net/bugs/1274254
Title:
Stopping openvpn is unreliable (Ubuntu specific behaviour)
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