On 04/03/18 09:44, Mihai Moldovan wrote:
* On 03/04/2018 01:54 AM, Robert Dinse wrote:

      Yes consuming a large amount of CPU and not doing anything useful, 
customer is disconnected.  Connection is still possible but doesn't get rid
of the stuck processes, I have to kill -9 to get rid of them.

Uhm... "stuck" is pretty ambiguous in that context - I assume that you are
referring to the CPU usage, which doesn't go down to sane levels even after
reconnecting, but reconnecting to the session as such is possible?

Is there any reasonable way to trigger this behavior? Like starting a MATE
session, disconnecting and waiting for an hour to see the CPU usage spike? Or is
it triggered by other programs running inside of the session?

I'll need something to reproduce it, server OS information would also be great.
Oh, maybe some details
Server:

[mario@lindev 13:30:31 ~]$ dpkg -l | egrep "(x2go|nx)"
ii  libjs-sphinxdoc                                             1.2.2+dfsg-1ubuntu1.1                        all          JavaScript support for Sphinx documentation
ii  libnx-x11-6:i386                                            2:3.5.99.14-0~816~ubuntu14.04.1              i386         nxagent's libNX_X11 client-part library
rc  libnx-xcomposite1:i386                                      2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 Composite extension library
rc  libnx-xdamage1:i386                                         2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 damaged region extension library
rc  libnx-xdmcp6:i386                                           2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 Display Manager Control Protocol library
rc  libnx-xext6:i386                                            2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 miscellaneous extension library
rc  libnx-xfixes3:i386                                          2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 miscellaneous 'fixes' extension library
rc  libnx-xinerama1:i386                                        2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 Xinerama extension library
rc  libnx-xpm4:i386                                             2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 pixmap library
rc  libnx-xrandr2:i386                                          2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 RandR extension library
rc  libnx-xrender1:i386                                         2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 Rendering Extension client library
rc  libnx-xtst6:i386                                            2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 Testing -- Record extension library
ii  libx2go-log-perl                                            4.1.0.0-0~1517~ubuntu14.04.1                 all          Perl X2Go::Log package
ii  libx2go-server-db-perl                                      4.1.0.0-0~1517~ubuntu14.04.1                 i386         Perl X2Go::Server:DB package
ii  libx2go-server-perl                                         4.1.0.0-0~1517~ubuntu14.04.1                 all          Perl X2Go::Server package
rc  libxcompext3:i386                                           2:3.5.0.33-0~710~ubuntu14.04.1               i386         nx-X11 protocol compression extensions library
ii  nx-x11-common                                               2:3.5.99.14-0~816~ubuntu14.04.1              all          nx-X11 (common files)
ii  nxagent                                                     2:3.5.99.14-0~816~ubuntu14.04.1              i386         Nested Xserver (aka NX Agent) supporting the NX compression protocol
ii  nxproxy                                                     2:3.5.99.14-0~816~ubuntu14.04.1              i386         NX proxy
ii  qtcreator-plugin-qnx:i386                                   3.0.1+14.04.20140410.1-0ubuntu1              i386         QNX plugin for Qt Creator IDE
rc  x2goagent                                                   2:3.5.0.33-0~710~ubuntu14.04.1               all          X2Go agent
ii  x2goclient                                                  4.1.1.1-0~1719~ubuntu14.04.1                 i386         X2Go Client application (Qt4)
ii  x2goserver                                                  4.1.0.0-0~1517~ubuntu14.04.1                 i386         X2Go server daemon scripts
ii  x2goserver-common                                           4.1.0.0-0~1517~ubuntu14.04.1                 i386         X2Go Server (common files)
ii  x2goserver-extensions                                       4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server (extension support)
ii  x2goserver-fmbindings                                       4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server (file manager bindings)
ii  x2goserver-printing                                         4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go server (printing support)
ii  x2goserver-x2goagent                                        4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server's X2Go Agent
ii  x2goserver-xsession                                         4.1.0.0-0~1517~ubuntu14.04.1                 all          X2Go Server (Xsession runner)
[mario@lindev 13:38:15 ~]$ uname -a
Linux lindev.de.regify.com 3.13.0-142-generic #191-Ubuntu SMP Fri Feb 2 12:14:37 UTC 2018 i686 i686 i686 GNU/Linux
[mario@lindev 13:38:32 ~]$ cat /etc/issue
Ubuntu 14.04.5 LTS \n \l

Client:
[mario@fatty 13:40:25 ~]$ dpkg -l | egrep "(x2go|nx)"
ii  libjs-sphinxdoc                                             1.2.2+dfsg-1ubuntu1.1                                  all          JavaScript support for Sphinx documentation
ii  libxcomp3:amd64                                             2:3.5.0.33-0~710~ubuntu14.04.1                         amd64        nx-X11 compression library
ii  nxproxy                                                     2:3.5.0.33-0~710~ubuntu14.04.1                         amd64        NX proxy
ii  x2goclient                                                  4.1.1.0-0~1679~ubuntu14.04.1                           amd64        X2Go Client application (Qt4)
[mario@fatty 13:40:38 ~]$ uname -a
Linux fatty 3.13.0-137-generic #186-Ubuntu SMP Mon Dec 4 19:09:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[mario@fatty 13:40:48 ~]$ cat /etc/issue
Ubuntu 14.04.5 LTS \n \l


-- 
Mit freundlichen Grüßen/Kind regards

Mario Theodoridis