<div dir="ltr">Okay so after reinstall, I'm back to square 1. <div><br></div><div>But at least it helped identify a bug. Thanks for both of your help. </div><div><br></div><div>Unfortunately, I still need to get unstuck urgently ... deadline approaching. Do you know any other system like x2go that's free or low cost? I tried Xming but it's too slow to be useful. Thanks.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Aug 24, 2018 at 10:41 AM Ulrich Sibiller <<a href="mailto:uli42@gmx.de">uli42@gmx.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Fri, Aug 24, 2018 at 5:18 PM, Brian Lam <<a href="mailto:blam314159@gmail.com" target="_blank">blam314159@gmail.com</a>> wrote:<br>
> Yes I forgot the bt. This is what I get after I installed the rpm and ran<br>
> gdb<br>
><br>
> [root@pleth01 ~]# rpm -i<br>
> ./nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm<br>
> [root@pleth01 ~]# gdb /usr/bin/nxagent ~cchu/core.15672<br>
> GNU gdb (GDB) Red Hat Enterprise Linux (7.2-92.el6)<br>
> Copyright (C) 2010 Free Software Foundation, Inc.<br>
> License GPLv3+: GNU GPL version 3 or later<br>
> <<a href="http://gnu.org/licenses/gpl.html" rel="noreferrer" target="_blank">http://gnu.org/licenses/gpl.html</a>><br>
> This is free software: you are free to change and redistribute it.<br>
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"<br>
> and "show warranty" for details.<br>
> This GDB was configured as "x86_64-redhat-linux-gnu".<br>
> For bug reporting instructions, please see:<br>
> <<a href="http://www.gnu.org/software/gdb/bugs/" rel="noreferrer" target="_blank">http://www.gnu.org/software/gdb/bugs/</a>>...<br>
> Reading symbols from /usr/bin/nxagent...Reading symbols from<br>
> /usr/lib/debug/usr/bin/nxagent.debug...done.<br>
> done.<br>
><br>
> warning: core file may not match specified executable file.<br>
> [New Thread 15672]<br>
> Reading symbols from /usr/lib64/nx/X11/libX11.so.6...Reading symbols from<br>
> /usr/lib/debug/usr/lib64/libNX_X11.so.6.3.0.debug...done.<br>
> done.<br>
> Loaded symbols for /usr/lib64/nx/X11/libX11.so.6<br>
> Reading symbols from /usr/lib64/libXcomp.so.3...Reading symbols from<br>
> /usr/lib/debug/usr/lib64/libXcomp.so.3.5.99.debug...done.<br>
> done.<br>
> Loaded symbols for /usr/lib64/libXcomp.so.3<br>
> Reading symbols from /usr/lib64/libXcompshad.so.3...Reading symbols from<br>
> /usr/lib/debug/usr/lib64/libXcompshad.so.3.5.99.debug...done.<br>
> done.<br>
> Loaded symbols for /usr/lib64/libXcompshad.so.3<br>
> Reading symbols from /usr/lib64/libXrender.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXrender.so.1<br>
> Reading symbols from /usr/lib64/libXfixes.so.3...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXfixes.so.3<br>
> Reading symbols from /usr/lib64/libXfont.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXfont.so.1<br>
> Reading symbols from /usr/lib64/libXcomposite.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXcomposite.so.1<br>
> Reading symbols from /usr/lib64/libXinerama.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXinerama.so.1<br>
> Reading symbols from /usr/lib64/libXdmcp.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXdmcp.so.6<br>
> Reading symbols from /usr/lib64/libXext.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXext.so.6<br>
> Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.<br>
> Loaded symbols for /lib64/libz.so.1<br>
> Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.<br>
> Loaded symbols for /lib64/libm.so.6<br>
> Reading symbols from /usr/lib64/libXpm.so.4...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXpm.so.4<br>
> Reading symbols from /usr/lib64/libxml2.so.2...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libxml2.so.2<br>
> Reading symbols from /usr/lib64/libpixman-1.so.0...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libpixman-1.so.0<br>
> Reading symbols from /usr/lib64/libpng12.so.0...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libpng12.so.0<br>
> Reading symbols from /usr/lib64/libjpeg.so.62...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libjpeg.so.62<br>
> Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.<br>
> Loaded symbols for /lib64/libc.so.6<br>
> Reading symbols from /lib64/libpthread.so.0...(no debugging symbols<br>
> found)...done.<br>
> [Thread debugging using libthread_db enabled]<br>
> Loaded symbols for /lib64/libpthread.so.0<br>
> Reading symbols from /usr/lib64/libstdc++.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libstdc++.so.6<br>
> Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /lib64/libgcc_s.so.1<br>
> Reading symbols from /usr/lib64/libXdamage.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXdamage.so.1<br>
> Reading symbols from /usr/lib64/libXrandr.so.2...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXrandr.so.2<br>
> Reading symbols from /usr/lib64/libXtst.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXtst.so.6<br>
> Reading symbols from /usr/lib64/libfreetype.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libfreetype.so.6<br>
> Reading symbols from /usr/lib64/libfontenc.so.1...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libfontenc.so.1<br>
> Reading symbols from /lib64/libdl.so.2...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /lib64/libdl.so.2<br>
> Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /lib64/ld-linux-x86-64.so.2<br>
> Reading symbols from /usr/lib64/libXi.so.6...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /usr/lib64/libXi.so.6<br>
> Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols<br>
> found)...done.<br>
> Loaded symbols for /lib64/libnss_files.so.2<br>
> Core was generated by `x2goagent -nolisten tcp -extension BIG-REQUESTS<br>
> -nolisten tcp -dpi 96 -D -auth'.<br>
> Program terminated with signal 6, Aborted.<br>
> #0 0x00000038cfc32495 in raise () from /lib64/libc.so.6<br>
> Missing separate debuginfos, use: debuginfo-install<br>
> freetype-2.3.11-17.el6.x86_64 glibc-2.12-1.212.el6.x86_64<br>
> libXcomposite-0.4.3-4.el6.x86_64 libXdamage-1.1.3-4.el6.x86_64<br>
> libXdmcp-1.1.1-3.el6.x86_64 libXext-1.3.3-1.el6.x86_64<br>
> libXfixes-5.0.3-1.el6.x86_64 libXfont-1.5.1-2.el6.x86_64<br>
> libXi-1.7.8-1.el6.x86_64 libXinerama-1.1.3-2.1.el6.x86_64<br>
> libXpm-3.5.10-2.el6.x86_64 libXrandr-1.5.1-1.el6.x86_64<br>
> libXrender-0.9.10-1.el6.x86_64 libXtst-1.2.3-1.el6.x86_64<br>
> libfontenc-1.1.2-3.el6.x86_64 libgcc-4.4.7-23.el6.x86_64<br>
> libjpeg-turbo-1.2.1-3.el6_5.x86_64 libpng-1.2.49-2.el6_7.x86_64<br>
> libstdc++-4.4.7-23.el6.x86_64 libxml2-2.7.6-21.el6_8.1.x86_64<br>
> pixman-0.32.8-1.el6.x86_64 zlib-1.2.3-29.el6.x86_64<br>
> (gdb) bt<br>
> #0 0x00000038cfc32495 in raise () from /lib64/libc.so.6<br>
> #1 0x00000038cfc33c75 in abort () from /lib64/libc.so.6<br>
> #2 0x00000038cfc703a7 in __libc_message () from /lib64/libc.so.6<br>
> #3 0x00000038cfc75dee in malloc_printerr () from /lib64/libc.so.6<br>
> #4 0x00000038cfc78c80 in _int_free () from /lib64/libc.so.6<br>
> #5 0x00000000004eeefb in XkbSendMap (client=0x1ea84f0, xkb=0x1ea7260,<br>
> rep=0x7ffecae5e4c0) at xkb.c:1345<br>
> #6 0x00000000004f51b8 in ProcXkbGetKbdByName (client=0x1ea84f0) at<br>
> xkb.c:5368<br>
> #7 0x00000000004223ca in Dispatch () at NXdispatch.c:482<br>
> #8 0x00000000004539ea in main (argc=17, argv=0x7ffecae5f788, envp=<value<br>
> optimized out>) at main.c:353<br>
<br>
Alright, looks like we have a bug in the xkb code. Fortunately there<br>
is an upgrade to XKB 1.3 pending and will be merged soon (hopefully):<br>
<a href="https://github.com/ArcticaProject/nx-libs/pull/717" rel="noreferrer" target="_blank">https://github.com/ArcticaProject/nx-libs/pull/717</a><br>
<br>
Regarding your current problem I would say: reinstall all x2go<br>
packages and retry.<br>
<br>
Uli<br>
</blockquote></div>