[X2Go-User] Problem with x2go - the connection with the remote server was shut down

Brian Lam blam314159 at gmail.com
Fri Aug 24 20:10:38 CEST 2018


Okay so after reinstall, I'm back to square 1.

But at least it helped identify a bug.  Thanks for both of your help.

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.


On Fri, Aug 24, 2018 at 10:41 AM Ulrich Sibiller <uli42 at gmx.de> wrote:

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