x2go-user

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2322 discussions

nxagent SIGSEGV when running glxinfo (and firefox) on a host with cuda installed
by Norman Gaywood 14 Jul '21

14 Jul '21

We have some centos 7 systems with GPUs that users access with x2go to run their machine learning task. After an update to cuda on the centos 7 systems, nxagent now segfaults when I run glxinfo or firefox. nxagent-3.5.99.26-1.el7.x86_64 x2goserver-4.1.0.3-9.el7.x86_64 cuda-11.4.0-1.x86_64 kmod-nvidia-latest-dkms-470.42.01-1.el7.x86_64 What's also interesting is that if I x2go into a host that does not have cuda installed, and then: ssh -Y cudahost glxinfo then the nxagent on the non-cuda host segfaults. This happens with glxinfo and when trying to start firefox. google-chrome works fine. This was all working fine until I updated cuda and the GPU driver. On Centos 7.9.2009 This happens on a host with a K80 GPU and another host that has a V100 GPU. I also have cuda-11.4 on a Fedora 34 host with a V100 GPU. If I x2go (or ssh -Y) to the Fedora 34 host, glxinfo (and firefox) run fine. nxagent-3.5.99.26-1.fc34.x86_64 x2goserver-4.1.0.3-10.fc34.x86_64 cuda-11.4.0-1.x86_64 kmod-nvidia-latest-dkms-3:465.19.01-1.fc33.x86_64 Any suggestions on how I might provide some debugging information to the developers? abrt-cli list --since 1626070479 id 35db2c461122be7229abdbe219ddfd92d0613da8 reason: nxagent killed by SIGSEGV time: Mon 05 Jul 2021 09:37:02 AEST cmdline: x2goagent -nolisten tcp -nolisten tcp -dpi 97 -D -auth /home/ngaywood/.Xauthority -geometry 2560x1440 -name X2GO-ngaywood-50-1625441817_stDMATE_dp24 :50 package: nxagent-3.5.99.26-1.el7 uid: 5125 (ngaywood) count: 21 Directory: /var/spool/abrt/ccpp-2021-07-05-09:37:02-2523 -- Norman Gaywood, Computer Systems Officer School of Science and Technology University of New England Armidale NSW 2351, Australia ngaywood(a)une.edu.au http://turing.une.edu.au/~ngaywood Phone: +61 (0)2 6773 2412 Mobile: +61 (0)4 7862 0062 Please avoid sending me Word or Power Point attachments. See http://www.gnu.org/philosophy/no-word-attachments.html

2 2

Crashing X2Go When Launching Java
by Thackeray, Neil L 06 Jul '21

06 Jul '21

We are having problems with X2Go crashing whenever a java application launches. The behavior we've seen this with are Matlab and Libre Office. The error log for a session is below: XSession-x2go: X session started for foo at Tue 06 Jul 2021 10:56:11 AM CDT dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b dbus-update-activation-environment: setting DISPLAY=:51 dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 xhost: must be on local machine to add or remove hosts. localuser:foo being added to access control list dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 dbus-update-activation-environment: setting QT_ACCESSIBILITY=1 dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 dbus-update-activation-environment: setting SHELL=/bin/bash dbus-update-activation-environment: setting QT_ACCESSIBILITY=1 dbus-update-activation-environment: setting SSH_AUTH_SOCK=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/ssh-agent.PID dbus-update-activation-environment: setting STARTUP=/usr/bin/env LD_LIBRARY_PATH= xfce4-session dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge dbus-update-activation-environment: setting KRB5CCNAME=FILE:/tmp/krb5cc_30106_1IvBkz dbus-update-activation-environment: setting PWD=/home/foo dbus-update-activation-environment: setting LOGNAME=foo dbus-update-activation-environment: setting XDG_SESSION_TYPE=tty dbus-update-activation-environment: setting GPG_AGENT_INFO=/run/user/30106/gnupg/S.gpg-agent:0:1 dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority dbus-update-activation-environment: setting X2GO_SESSION=foo-51-1625586962_stDXFCE_dp32 dbus-update-activation-environment: setting HOME=/home/foo dbus-update-activation-environment: setting LANG=en_US.UTF-8 dbus-update-activation-environment: setting PULSE_CLIENTCONFIG=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/.pulse-client.conf dbus-update-activation-environment: setting SSH_CONNECTION=192.168.2.235 56888 192.168.1.3 22 dbus-update-activation-environment: setting QT_GRAPHICSSYSTEM=native dbus-update-activation-environment: setting XDG_SESSION_CLASS=user dbus-update-activation-environment: setting TERM=dumb dbus-update-activation-environment: setting X2GO_AGENT_PID=41248 dbus-update-activation-environment: setting USER=foo dbus-update-activation-environment: setting DISPLAY=:51 dbus-update-activation-environment: setting SHLVL=2 dbus-update-activation-environment: setting XDG_RUNTIME_DIR=/run/user/30106 dbus-update-activation-environment: setting SSH_CLIENT=192.168.2.235 56888 22 dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/local/share:/usr/share:/var/lib/snapd/desktop dbus-update-activation-environment: setting PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b dbus-update-activation-environment: setting MAIL=/var/mail/foo dbus-update-activation-environment: setting XSESSION_EXEC=xfce4-session dbus-update-activation-environment: setting _=/usr/bin/dbus-update-activation-environment dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 Gtk-Message: 10:56:12.094: Failed to load module "atk-bridge" gpg-agent[41537]: WARNING: "--write-env-file" is an obsolete option - it has no effect gpg-agent: a gpg-agent is already running - not starting a new one (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.146: gpg-agent returned no PID in the variables Gtk-Message: 10:56:12.164: Failed to load module "atk-bridge" (xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: The display does not support the XComposite extension. (xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: Compositing manager disabled. (xfwm4:41539): xfwm4-WARNING **: 10:56:12.251: Error opening /dev/dri/card0: Permission denied Gtk-Message: 10:56:12.421: Failed to load module "atk-bridge" Gtk-Message: 10:56:12.426: Failed to load module "atk-bridge" Gtk-Message: 10:56:12.436: Failed to load module "atk-bridge" (xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.456: Your XI is too old (1.3) version 1.4 is required. Gtk-Message: 10:56:12.457: Failed to load module "atk-bridge" (xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.458: Failed to change the keyboard repeat Gtk-Message: 10:56:12.464: Failed to load module "atk-bridge" (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.554: Unable to launch "light-locker" (specified by autostart/light-locker.desktop): Failed to execute child process "light-locker" (No such file or directory) (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.557: Unable to launch "system-config-printer-applet" (specified by autostart/print-applet.desktop): Failed to execute child process "system-config-printer-applet" (No such file or directory) (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.563: Unable to launch "nm-applet" (specified by autostart/nm-applet.desktop): Failed to execute child process "nm-applet" (No such file or directory) Gtk-Message: 10:56:12.584: Failed to load module "atk-bridge" Gtk-Message: 10:56:13.282: Failed to load module "atk-bridge" Gtk-Message: 10:56:13.286: Failed to load module "atk-bridge" Failure: Module initialization failed ERROR: Unable to load info from any available system ** (xfce4-clipman:47166): WARNING **: 10:58:47.786: Unable to register GApplication: An object is already exported for the interface org.gtk.Application at /org/xfce/clipman (xfce4-clipman:47166): GLib-GIO-CRITICAL **: 10:58:47.786: g_application_get_is_remote: assertion 'application->priv->is_registered' failed (xfce4-clipman:47166): GLib-WARNING **: 10:58:47.786: g_set_application_name() called multiple times Gtk-Message: 10:58:57.773: Failed to load module "atk-bridge" Gtk-Message: 10:59:21.444: Failed to load module "atk-bridge" X IO Error wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfdesktop: Fatal IO error 104 (Connection reset by peer) on X server :51.0. wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. Gdk-Message: 10:59:55.630: xfce4-clipman: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfsettingsd: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfce4-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :51. xfwm4: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. Gdk-Message: 10:59:55.630: Thunar: Fatal IO error 11 (Resource temporarily unavailable) on X server :51. Gdk-Message: 10:59:55.630: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfce4-panel: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. XIO: fatal IO error 0 (Success) on X server ":51.0" after 42 requests (42 known processed) with 0 events remaining. Neil thackeray Sr. Systems Engineer Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign 405 N. Mathews Avenue | M/C 251 Urbana, IL 61801 217.244.3283 |neilt(a)illinois.edu<mailto:pmjones5@illinois.edu> beckman.illinois.edu<http://beckman.illinois.edu> [cid:image001.png@01D77258.0C57D410]<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.facebook.com_Beckm…> [cid:image002.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_beckmanins…> [cid:image003.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.instagram.com_beck…> [cid:image004.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.linkedin.com_showc…> [cid:image005.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_user_B…> [cid:image006.png@01D77258.0C57D410]<https://urldefense.proofpoint.com/v2/url?u=http-3A__illinois.edu_&d=DwMFAg&…> Under the Illinois Freedom of Information Act, any written communication to or from university employees regarding university business is a public record and may be subject to public disclosure.

2 3

x2gousbmounts fail
by ovt＠zaokknm.ru 06 Jul '21

06 Jul '21

1 0

x2go session resume always fails (long post)
by Norm Green 05 Jul '21

05 Jul '21

I'm having a problem resuming x2go sessions which now fails 100% of the time. The only way to use x2go is to kill all x2go processes on the server and restart x2goserver service, which causes the suspended session to be lost. This is driving me crazy. Any hints on how to debug this? Client is x2go 4.1.2.2 on windows 10 server is x2go 4.1.0.4-0 on Unbuntu 18.04 At the point the session is suspended, everything looks normal: I have a session and the x2goagent is still running. normg@moop>x2golistsessions 26617|normg-50-1625002538_stDXFCE_dp32|50|moop|S|2021-06-29T14:35:39|6fa8d13074afab1c2d58dee02b1085d8|10.94.155.18|43587|43588|2021-06-29T14:50:02|normg|1016|43589|-1|-1 normg@moop>cat state SUSPENDED normg@moop>cat options nx/nx,link=adsl,pack=16m-jpeg-9,limit=0,root=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32,cache=8M,images=32M,type=unix-kde-depth_32,id=normg-50-1625002538_stDXFCE_dp32,cookie=6fa8d13074afab1c2d58dee02b1085d8,errors=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/session.log_errors,kbtype=null/null,geometry=800x600,xinerama=0,resize=1,fullscreen=0,accept=localhost,listen=43587,clipboard=both,client=linux,menu=0,state=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/state:50 normg@moop>tail session.log autograb : Ctrl+Alt+g dump_clipboard : Ctrl+Shift+Alt+c Info: keyboard blocking directory created: '/home/normg/.x2go/C-normg-50-1625002538_stDXFCE_dp32/keyboard' Info: Keycode conversion is off Session: Session started at 'Tue Jun 29 14:35:50 2021'. Info: Screen [0] resized to geometry [800x600] fullscreen [0]. Info: Screen [0] resized to geometry [3440x1387] fullscreen [0]. Session: Suspending session at 'Tue Jun 29 14:50:02 2021'. Info: Waiting the cleanup timeout to complete. Session: Session suspended at 'Tue Jun 29 14:50:05 2021'. /tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32 -------------------------------------------------------------------------- When I attempt to resume I get this error on the windows side: The remote proxy closed the connection while negotiating the session. When I attempt to resume there are errors in the log. For one thing, the "options" file is now size 0. I can't tell if I have an ssh tunnel problem or an x2go problem. The session log after the resume looks like this. Session: Resuming session at 'Tue Jun 29 14:54:40 2021'. Warning: Option file doesn't contain a port specification. Loop: PANIC! Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Parsing of NX transport options failed. _X11TransSocketConnectConnInfo: Cannot create the NX transport. Loop: WARNING! Signal 'SIGINT' not installed in process with pid '26617'. Warning: Signal 'SIGINT' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGTERM' not installed in process with pid '26617'. Warning: Signal 'SIGTERM' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGHUP' not installed in process with pid '26617'. Warning: Signal 'SIGHUP' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGCHLD' not installed in process with pid '26617'. Warning: Signal 'SIGCHLD' not installed in process with pid '26617'. Session: Display failure detected at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. NXPROXY - Version 3.5.99.26 Info: Proxy running in client mode with pid '26617'. Session: Starting session at 'Tue Jun 29 14:54:40 2021'. Loop: PANIC! Call to bind failed for x11. Error is 98 'Address already in use'. Error: Call to bind failed for x11. Error is 98 'Address already in use'. Session: Session terminated at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:45 2021'. Session: Suspending session at 'Tue Jun 29 14:54:50 2021'. Session: Suspending session at 'Tue Jun 29 14:54:55 2021'. cat state RESUMING >tail /var/log/auth.log Jun 29 14:36:37 moop sshd[22738]: pam_unix(sshd:session): session closed for user normg Jun 29 14:36:37 moop su[25244]: pam_unix(su:session): session closed for user root Jun 29 14:36:37 moop systemd-logind[2033]: Removed session 30. Jun 29 14:50:05 moop sshd[25879]: pam_unix(sshd:session): session closed for user normg Jun 29 14:52:18 moop sshd[3540]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:52:18 moop sshd[3540]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:52:18 moop sshd[3540]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:52:18 moop sshd[3540]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: Accepted publickey for normg from 10.94.155.18 port 62301 ssh2: RSA SHA256:7IZ9shZ11Cs+7I+F9oGX+J/HwXehqo2WuO+DIqri8ag Jun 29 14:52:18 moop sshd[3540]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:52:18 moop systemd-logind[2033]: New session 39 of user normg. Jun 29 14:54:34 moop sshd[4976]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:54:34 moop sshd[4976]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:54:34 moop sshd[4976]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:54:34 moop sshd[4976]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:54:34 moop sshd[4976]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:36 moop sshd[4976]: Accepted publickey for normg from 10.94.155.18 port 61095 ssh2: RSA SHA256:g5I1h8qQIEpuSkJl3+1D6VdhSAB89gJO3cGgVzZBfP8 Jun 29 14:54:36 moop sshd[4976]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:54:36 moop systemd-logind[2033]: New session 40 of user normg. Jun 29 14:54:43 moop sshd[5048]: error: connect_to localhost port 43587: failed. Jun 29 14:54:43 moop sshd[5048]: channel_by_id: 0: bad id: channel free Jun 29 14:54:43 moop sshd[5048]: Disconnecting user normg 10.94.155.18 port 61095: ieof packet referred to nonexistent channel 0 Jun 29 14:54:43 moop sshd[4976]: pam_unix(sshd:session): session closed for user normg Jun 29 14:55:11 moop systemd-logind[2033]: Removed session 40. >tail /var/log/syslog Jun 29 14:54:06 moop snmpd[2635]: message repeated 3 times: [ error on subcontainer 'ia_addr' insert (-1)] Jun 29 14:54:36 moop systemd[1]: Started Session 40 of user normg. Jun 29 14:54:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:06 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:23 moop dhclient[1959]: DHCPREQUEST of 10.94.141.31 on br0 to 10.94.141.7 port 67 (xid=0x183e67fb) Jun 29 14:55:23 moop dhclient[1959]: DHCPACK of 10.94.141.31 from 10.94.141.7 Jun 29 14:55:23 moop dhclient[1959]: bound to 10.94.141.31 -- renewal in 3565 seconds. Jun 29 14:55:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1)

2 5

I am overwhelmed by the sheer number of open source remote desktop software in the world
by Turritopsis Dohrnii Teo En Ming 03 Jul '21

03 Jul '21

Subject: I am overwhelmed by the sheer number of open source remote desktop software in the world Good day from Singapore, I am overwhelmed by the sheer number of open source remote desktop software in the world. How many open source remote desktop software projects are there in the world? There are simply too many choices! I don't know how to choose! Could you recommend some of the best open source remote desktop software? Thank you very much for your kind assistance. Mr. Turritopsis Dohrnii Teo En Ming, 43 years old as of 3rd July 2021, is a TARGETED INDIVIDUAL living in Singapore. He is an IT consultant with a System Integrator (SI)/computer firm in Singapore. He is an IT enthusiast. -- -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

1 0

Zoom Desktop Client will not start over X2Go
by Justin Paulsen 02 Jul '21

02 Jul '21

Hello, When I connect over X20go to my Debian 10.9 workstation and try to start the Zoom Desktop Client it crashes immediately without even showing up. If I start it on the workstation locally it starts without issue. Has anyone else run into this issue, and if so have you found a solution? Use case: Sharing a window on the remote system during a meeting. Sharing the entire x20go session window is not desirable. Thank you!

4 5

x2gothinclient TCE-nfs x2gothinclient_usbmount
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

x2gothinclient TCE-nfs -x-session break
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

bell
by richard lucassen 30 Jun '21

30 Jun '21

I run x2go server (custom: /usr/bin/wmaker). When starting WindowMaker I run: xset b off which should switch off the bell. But quite often the bell still works, even after logging out and in. Anyone a hint? R. -- richard lucassen http://contact.xaq.nl/

2 5

Windows UAC Prompts
by Tobias Botens 28 Jun '21

28 Jun '21

Hey, during the installation of x2go on Windows 10 we are getting Windows UAC-Prompts. We want to distribute the Software via our Software-Distribution Product. How can we achieve a "silent Installation" without these prompts. If needed, we will create the firewall-Rules manually in our deployment-process. Kind Regards Tobias Botens

2 1

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