[X2Go-User] Problem with x2go - the connection with the remote server was shut down
Brian Lam
blam314159 at gmail.com
Fri Aug 24 14:24:10 CEST 2018
With the new errors about failed connection and x2gocheckport (see
screenshot in previous email), I can no longer generate core dump.
However, if I look at one of the older cored dumps, I get this -
[root at pleth01 cchu]# gdb 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/>...
Missing separate debuginfo for the main executable file
Try: yum --enablerepo='*-debug*' install
/usr/lib/debug/.build-id/6e/4396cb4f9e63dd00414f4fc7d932db3dc5099d
[New Thread 15672]
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 ?? ()
"/home/cchu/core.15672" is a core file.
Please specify an executable to debug.
(gdb) bt
#0 0x00000038cfc32495 in ?? ()
#1 0x00000038cfc33c75 in ?? ()
#2 0x00007ffecae5d968 in ?? ()
#3 0x00007ffecae5d950 in ?? ()
#4 0x00007ffecae61815 in ?? ()
#5 0x0000000000000009 in ?? ()
#6 0x00000038cfd5798f in ?? ()
#7 0x0000000000000003 in ?? ()
#8 0x00007ffecae5d95a in ?? ()
#9 0x0000000000000006 in ?? ()
#10 0x00000038cfd57993 in ?? ()
#11 0x0000000000000002 in ?? ()
#12 0x00007ffecae5d94e in ?? ()
#13 0x0000000000000002 in ?? ()
#14 0x00000038cfd55f44 in ?? ()
#15 0x0000000000000001 in ?? ()
#16 0x00000038cfd5798f in ?? ()
#17 0x0000000000000003 in ?? ()
#18 0x00007ffecae5d956 in ?? ()
#19 0x000000000000000a in ?? ()
#20 0x00000038cfd57993 in ?? ()
#21 0x0000000000000002 in ?? ()
#22 0x0000000000000020 in ?? ()
#23 0x0000000000000000 in ?? ()
Thanks.
On Fri, Aug 24, 2018 at 12:03 AM Ulrich Sibiller <ulrich.sibiller at gmail.com>
wrote:
> The logs from one of the previous mails show a crashing nxagent. Which is
> a bug. Please run gdb against the coredump in the mentioned abrt directory
> and post the output of gdb's bt command . We can then see where it crashes.
>
> Uli
>
> Brian Lam <blam314159 at gmail.com> schrieb am Fr., 24. Aug. 2018, 06:33:
>
>> After running the command and cleaning /var/lib/x2go, I'm getting a
>> completely different message
>>
>> [image: image.png]
>>
>> Any suggestions? Thanks.
>>
>> - Eric
>>
>>
>> On Thu, Aug 23, 2018 at 7:32 PM Paul Borowicz <paul at borowicz.org> wrote:
>>
>>> Try running 'sudo pkill -u user'. After making sure the folders are
>>> cleaned.
>>>
>>> Also delete files in /var/lib/x2go/
>>> But not the directory itself.
>>>
>>>
>>>
>>> On Thu, Aug 23, 2018, 10:11 PM Brian Lam <blam314159 at gmail.com> wrote:
>>>
>>>> Hi Paul,
>>>>
>>>> Still have the same problem after I delete .x2go and cleans up /tmp
>>>>
>>>> From /var/log/messages -
>>>>
>>>> Aug 23 18:11:21 pleth01 /usr/bin/x2goruncommand: launching session with
>>>> Xsession-x2go mechanism, using STARTUP="/usr/bin/gnome-session"
>>>> Aug 23 18:11:21 pleth01 /usr/bin/x2goruncommand: dbus wrapper available
>>>> as /bin/dbus-run-session
>>>> Aug 23 18:11:24 pleth01 /usr/bin/x2gosetkeyboard: Setting X keyboard
>>>> according to
>>>> /home/eminami/.x2go/C-eminami-52-1535062277_stDGNOME_dp32/keyboard
>>>> Aug 23 18:11:26 pleth01 abrtd: Directory 'ccpp-2018-08-23-18:11:26-999'
>>>> creation detected
>>>> Aug 23 18:11:26 pleth01 abrt[1437]: Saved core dump of pid 999
>>>> (/usr/bin/nxagent) to /var/spool/abrt/ccpp-2018-08-23-18:11:26-999
>>>> (11898880 bytes)
>>>> Aug 23 18:11:26 pleth01 abrtd: Package 'nxagent' isn't signed with
>>>> proper key
>>>> Aug 23 18:11:26 pleth01 abrtd: 'post-create' on
>>>> '/var/spool/abrt/ccpp-2018-08-23-18:11:26-999' exited with 1
>>>> Aug 23 18:11:26 pleth01 abrtd: Deleting problem directory
>>>> '/var/spool/abrt/ccpp-2018-08-23-18:11:26-999'
>>>>
>>>>
>>>> Any other suggestions? Thanks for your help.
>>>>
>>>> - blam
>>>>
>>>> On Thu, Aug 23, 2018 at 6:00 PM Paul Borowicz <paul at borowicz.org>
>>>> wrote:
>>>>
>>>>> I usually see this when there are stuck session files. Make sure you
>>>>> don't have any processes running for that user.
>>>>> Clean out ~/.x2go. You may also have to delete some stuff in /tmp.
>>>>>
>>>>> Paul
>>>>>
>>>>> On Thu, Aug 23, 2018, 5:10 PM Brian Lam <blam314159 at gmail.com> wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I have been having intermittent problems with getting into x2go on
>>>>>> RH6 machine. Recently, after update of x2go server and client, I am not
>>>>>> having any success in connecting. I saw the same message before but I was
>>>>>> able to connect after I tried multiple times (usually success rate about
>>>>>> 10%).
>>>>>>
>>>>>> The message is -
>>>>>>
>>>>>> *X2Go - 52*
>>>>>> *The connection with the remove server was shut down. Please check
>>>>>> the state of your network connections.*
>>>>>>
>>>>>>
>>>>>> I updated x2go server with version *4.1.0.0 *using yum
>>>>>>
>>>>>> Updated
>>>>>> x2goserver-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Update
>>>>>> 4.1.0.2-0.0x2go1.1.git20180801.1642.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Updated
>>>>>> x2goserver-common-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Update
>>>>>> 4.1.0.2-0.0x2go1.1.git20180801.1642.main.el6.x86_64 @x2go-release-epel
>>>>>> Updated
>>>>>> x2goserver-extensions-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Update
>>>>>> 4.1.0.2-0.0x2go1.1.git20180801.1642.main.el6.x86_64 @x2go-release-epel
>>>>>> Updated
>>>>>> x2goserver-x2goagent-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Update
>>>>>> 4.1.0.2-0.0x2go1.1.git20180801.1642.main.el6.x86_64 @x2go-release-epel
>>>>>> Updated
>>>>>> x2goserver-xsession-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
>>>>>> @x2go-release-epel
>>>>>> Update
>>>>>> 4.1.0.2-0.0x2go1.1.git20180801.1642.main.el6.x86_64 @x2go-release-epel
>>>>>>
>>>>>> The client is running on Windows 10. Version is* 4.1.2.0.*
>>>>>>
>>>>>> The windows pop up for 1 or 2 seconds before closing with the error
>>>>>> message. In my home directory, I see a dumped core.* and .xsessions error
>>>>>>
>>>>>>
>>>>>> > more .xsession-x2go-pleth01.plethrontech.com-errors
>>>>>> XSession-x2go: X session started for eminami at Thu Aug 23 12:39:34
>>>>>> EDT 2018
>>>>>> ** (gnome-session:12939): WARNING **: Cannot open display:
>>>>>>
>>>>>>
>>>>>>
>>>>>> In my /var/log/messages -
>>>>>>
>>>>>> Aug 23 12:39:31 pleth01 /usr/bin/x2gostartagent: successfully started
>>>>>> X2Go Agent session with ID eminami-52-1535042370_stDGNOME_dp32
>>>>>> Aug 23 12:39:34 pleth01 /usr/bin/x2goserver-run-extensions:
>>>>>> /usr/lib64/x2go/extensions/pre-runcommand.d/005_GNOME-monitors-xml-ignore
>>>>>> (x2goserver-run-extensions) for session eminami-52-1535042370_stDGNOME_dp32
>>>>>> returned a non-zero exit code, continuing...
>>>>>> Aug 23 12:39:34 pleth01 /usr/bin/x2goruncommand: launching session
>>>>>> with Xsession-x2go mechanism, using STARTUP="/usr/bin/gnome-session"
>>>>>> Aug 23 12:39:34 pleth01 /usr/bin/x2goruncommand: dbus wrapper
>>>>>> available as /bin/dbus-run-session
>>>>>> Aug 23 12:39:37 pleth01 /usr/bin/x2gosetkeyboard: Setting X keyboard
>>>>>> according to
>>>>>> /home/eminami/.x2go/C-eminami-52-1535042370_stDGNOME_dp32/keyboard
>>>>>> Aug 23 12:39:39 pleth01 abrt[12896]: Saved core dump of pid 12432
>>>>>> (/usr/bin/nxagent) to /var/spool/abrt/ccpp-2018-08-23-12:39:38-12432
>>>>>> (11898880 bytes)
>>>>>> Aug 23 12:39:39 pleth01 abrtd: Directory
>>>>>> 'ccpp-2018-08-23-12:39:38-12432' creation detected
>>>>>> Aug 23 12:39:39 pleth01 abrtd: Package 'nxagent' isn't signed with
>>>>>> proper key
>>>>>> Aug 23 12:39:39 pleth01 abrtd: 'post-create' on
>>>>>> '/var/spool/abrt/ccpp-2018-08-23-12:39:38-12432' exited with 1
>>>>>> Aug 23 12:39:39 pleth01 abrtd: Deleting problem directory
>>>>>> '/var/spool/abrt/ccpp-2018-08-23-12:39:38-12432'
>>>>>>
>>>>>>
>>>>>> The Linux server (remote headless server) -
>>>>>>
>>>>>> > cat /etc/redhat-release
>>>>>> Red Hat Enterprise Linux Server release 6.10 (Santiago)
>>>>>>
>>>>>>
>>>>>> > uname -a
>>>>>>
>>>>>> Linux blam01.blamtech.com 2.6.32-754.el6.x86_64 #1 SMP Thu May 24
>>>>>> 18:18:25 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
>>>>>>
>>>>>>
>>>>>> I can login to the server using putty with ssh connection. Any
>>>>>> suggetions/help will be greatly appreciated.
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> x2go-user mailing list
>>>>>> x2go-user at lists.x2go.org
>>>>>> https://lists.x2go.org/listinfo/x2go-user
>>>>>
>>>>> _______________________________________________
>> x2go-user mailing list
>> x2go-user at lists.x2go.org
>> https://lists.x2go.org/listinfo/x2go-user
>
>
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