Description of problem: This seems to happen when I've had a nx2go client session going for most of the day. Though it doesn't happen every day and seems to occur only about once a week at most. I start my session at 9am, if it's going to happen it happens around 2pm more or less. Causes KDE to be unresponsive and the other apps super sluggish. Disconnecting or pausing the session causes it to abort and not be resumable. Once it's like that, there's no way to salvage it. Save what can be saved and exit and log back in. Version-Release number of selected component: nxagent-3.5.0.28-1.fc21 Additional info: reporter: libreport-2.3.0 backtrace_rating: 4 cmdline: /usr/lib64/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp -nolisten tcp -dpi 96 -D -auth /home/sly/.Xauthority -geometry 1680x1050 -name X2GO-sly-209-1420466729_stDKDE_dp24 :209 crash_function: _XReply executable: /usr/lib64/nx/bin/nxagent kernel: 3.17.7-300.fc21.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (2 frames) #0 _XReply at XlibInt.c:2249 #1 _XIDHandler at XlibInt.c:2073
Created attachment 976611 [details] File: backtrace
Created attachment 976612 [details] File: cgroup
Created attachment 976613 [details] File: core_backtrace
Created attachment 976614 [details] File: dso_list
Created attachment 976615 [details] File: environ
Created attachment 976616 [details] File: exploitable
Created attachment 976617 [details] File: limits
Created attachment 976618 [details] File: maps
Created attachment 976619 [details] File: open_fds
Created attachment 976620 [details] File: proc_pid_status
Created attachment 976621 [details] File: var_log_messages
Filed upstream: http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=717 This looks like infinite recursion in the _XIDHandler() libX11 code. Not sure there is anything to be done besides trying to rebase nx-libs on a newer Xorg X11 release, but that's a pretty big undertaking.
If you are feeling adventurous - please test out pre-release versions of nx-libs here: http://copr-fe.cloud.fedoraproject.org/coprs/orion/nxlibs36/ and let me know if it helps or makes things worse.
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