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

Discussion:

Brian Lam

2018-08-23 21:09:00 UTC

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

Paul Borowicz

2018-08-24 01:00:25 UTC

Permalink

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

Post by Brian Lam
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
Updated
x2goserver-extensions-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
Updated
x2goserver-x2goagent-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
Updated
x2goserver-xsession-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
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
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
/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
https://lists.x2go.org/listinfo/x2go-user

Brian Lam

2018-08-24 02:10:57 UTC

Permalink

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

Post by Paul Borowicz
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

more .xsession-x2go-pleth01.plethrontech.com-errors

XSession-x2go: X session started for eminami at Thu Aug 23 12:39:34 EDT 2018
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
/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

Paul Borowicz

2018-08-24 02:31:54 UTC

Permalink

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.

Post by Brian Lam
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

Post by Paul Borowicz
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

more .xsession-x2go-pleth01.plethrontech.com-errors

XSession-x2go: X session started for eminami at Thu Aug 23 12:39:34 EDT 2018
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
/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

Brian Lam

2018-08-24 04:26:17 UTC

Permalink

After running the command and cleaning /var/lib/x2go, I'm getting a
completely different message

[image: image.png]

Any suggestions? Thanks.

- Eric

Post by Paul Borowicz
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.

Post by Brian Lam
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

Post by Paul Borowicz
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

more .xsession-x2go-pleth01.plethrontech.com-errors

XSession-x2go: X session started for eminami at Thu Aug 23 12:39:34 EDT 2018
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
/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

Ulrich Sibiller

2018-08-24 07:03:32 UTC

Permalink

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

Post by Brian Lam
After running the command and cleaning /var/lib/x2go, I'm getting a
completely different message
[image: image.png]
Any suggestions? Thanks.
- Eric

Post by Paul Borowicz
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.

Post by Brian Lam
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

Post by Paul Borowicz
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

Post by Brian Lam
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
Updated
x2goserver-extensions-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
Updated
x2goserver-x2goagent-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
Updated
x2goserver-xsession-4.1.0.0-0.0x2go1.1.git20180302.1517.main.el6.x86_64
@x2go-release-epel
Update
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
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
/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

_______________________________________________

x2go-user mailing list
https://lists.x2go.org/listinfo/x2go-user

Ulrich Sibiller

2018-08-24 13:26:25 UTC

Permalink

Tried abrt-cli list. Last problem lists was 2 weeks ago.
Here is the re-run of gdb as you specified -
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".
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/nxagent...(no debugging symbols found)...done.
warning: core file may not match specified executable file.
[New Thread 15672]
Reading symbols from /usr/lib64/nx/X11/libX11.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/nx/X11/libX11.so.6
Reading symbols from /usr/lib64/libXcomp.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/libXcomp.so.3
Reading symbols from /usr/lib64/libXcompshad.so.3...(no debugging symbols
found)...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
nxagent-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64

Did you forget the "bt" call?

I don't see a debuginfo rpm for nxagent in
http://packages.x2go.org/epel/6/main/x86_64/rpms/nx-libs/ but can you
try to install http://packages.x2go.org/epel/6/main/x86_64/rpms/nx-libs/nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm,
restart gdb and issue the bt command, please?

Uli

Thanks!

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 -

Did you have a look at the abrt-cli command? It stroes coredumps in
some crash directory. So you might find some more.

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".
<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.

Can you please retry and call "gdb /usr/bin/nxagent core.15672"?
Uli

Brian Lam

2018-08-24 15:18:24 UTC

Permalink

Yes I forgot the bt. This is what I get after I installed the rpm and ran
gdb

[***@pleth01 ~]# rpm -i
./nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm
[***@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

Thanks!

copying"

and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/nxagent...(no debugging symbols

found)...done.

warning: core file may not match specified executable file.
[New Thread 15672]
Reading symbols from /usr/lib64/nx/X11/libX11.so.6...(no debugging

symbols

found)...done.
Loaded symbols for /usr/lib64/nx/X11/libX11.so.6
Reading symbols from /usr/lib64/libXcomp.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib64/libXcomp.so.3
Reading symbols from /usr/lib64/libXcompshad.so.3...(no debugging symbols
found)...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
nxagent-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64

Did you forget the "bt" call?
I don't see a debuginfo rpm for nxagent in
http://packages.x2go.org/epel/6/main/x86_64/rpms/nx-libs/ but can you
try to install
http://packages.x2go.org/epel/6/main/x86_64/rpms/nx-libs/nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm
,
restart gdb and issue the bt command, please?
Uli

Thanks!

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 -

Did you have a look at the abrt-cli command? It stroes coredumps in
some crash directory. So you might find some more.

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".
<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.

Can you please retry and call "gdb /usr/bin/nxagent core.15672"?
Uli

Ulrich Sibiller

2018-08-24 17:41:12 UTC

Permalink

Post by Brian Lam
Yes I forgot the bt. This is what I get after I installed the rpm and ran
gdb
./nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm
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".
<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

Brian Lam

2018-08-24 18:10:38 UTC

Permalink

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.

Post by Brian Lam

Post by Brian Lam
Yes I forgot the bt. This is what I get after I installed the rpm and

ran

Post by Brian Lam
gdb

./nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.main.el6.x86_64.rpm

Post by Brian Lam
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"

Post by Brian Lam
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
<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

Post by Brian Lam
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.

Post by Brian Lam
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libm.so.6...(no debugging symbols

found)...done.

Post by Brian Lam
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.

Post by Brian Lam
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
https://github.com/ArcticaProject/nx-libs/pull/717
Regarding your current problem I would say: reinstall all x2go
packages and retry.
Uli

Ulrich Sibiller

2018-08-24 18:40:10 UTC

Permalink

Post by Brian Lam
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.

You can try compiling nxagent yourself, it is not that difficult. Use
that tree: https://github.com/uli42/nx-libs.git Branch pr/xkb_1.3.0.0

But what about RHEL7?

Uli

Ulrich Sibiller

2018-08-24 18:42:32 UTC

Permalink

The crash happens ind XkbSendMap(). So I suspect some client in your
session asking nxagent for the xkb keyboard configuration. You can
look if you can disable that client. I suspect running a simple xterm
via x2go will not crash the session. Can you confirm?

Uli

Post by Ulrich Sibiller

You can try compiling nxagent yourself, it is not that difficult. Use
that tree: https://github.com/uli42/nx-libs.git Branch pr/xkb_1.3.0.0
But what about RHEL7?
Uli

Brian Lam

2018-08-24 19:11:00 UTC

Permalink

Thanks Paul, 127.0.01 is in the /etc/hosts

127.0.0.1 localhost.localdomain localhost.localdomain localhost4
localhost4.localdomain4 localhost
::1 localhost.localdomain localhost.localdomain localhost6
localhost6.localdomain6 localhost

Thanks Uli

Unfortunately, the software I need to use do not support RHEL7 so we have
to stick with RHEL6.

I tried opening terminal, but still have some problems. I assume "single
application > terminal" is the way to do this.

[image: image.png]

[image: image.png]

Post by Ulrich Sibiller
The crash happens ind XkbSendMap(). So I suspect some client in your
session asking nxagent for the xkb keyboard configuration. You can
look if you can disable that client. I suspect running a simple xterm
via x2go will not crash the session. Can you confirm?
Uli

Post by Ulrich Sibiller

You can try compiling nxagent yourself, it is not that difficult. Use
that tree: https://github.com/uli42/nx-libs.git Branch pr/xkb_1.3.0.0
But what about RHEL7?
Uli

Brian Lam

2018-08-24 20:11:01 UTC

Permalink

This is messages I get in /var/log/messages when I try to open a terminal.

Aug 24 12:10:50 pleth01 /usr/bin/x2gostartagent: successfully started X2Go
Agent session with ID eminami-56-1535127048_stRTERMINAL_dp32
Aug 24 12:10:55 pleth01 /usr/bin/x2gosetkeyboard: Setting X keyboard
according to
/home/eminami/.x2go/C-eminami-56-1535127048_stRTERMINAL_dp32/keyboard
Aug 24 12:10:56 pleth01 abrt[12264]: Saved core dump of pid 12015
(/usr/bin/nxagent) to /var/spool/abrt/ccpp-2018-08-24-12:10:55-12015
(28737536 bytes)
Aug 24 12:10:56 pleth01 abrtd: Directory 'ccpp-2018-08-24-12:10:55-12015'
creation detected
Aug 24 12:10:56 pleth01 abrtd: Package 'nxagent' isn't signed with proper
key
Aug 24 12:10:56 pleth01 abrtd: 'post-create' on
'/var/spool/abrt/ccpp-2018-08-24-12:10:55-12015' exited with 1
Aug 24 12:10:56 pleth01 abrtd: Deleting problem directory
'/var/spool/abrt/ccpp-2018-08-24-12:10:55-12015'

Thanks.

Post by Brian Lam
Thanks Paul, 127.0.01 is in the /etc/hosts
127.0.0.1 localhost.localdomain localhost.localdomain
localhost4 localhost4.localdomain4 localhost
::1 localhost.localdomain localhost.localdomain localhost6
localhost6.localdomain6 localhost
Thanks Uli
Unfortunately, the software I need to use do not support RHEL7 so we have
to stick with RHEL6.
I tried opening terminal, but still have some problems. I assume "single
application > terminal" is the way to do this.
[image: image.png]
[image: image.png]

Post by Ulrich Sibiller

You can try compiling nxagent yourself, it is not that difficult. Use
that tree: https://github.com/uli42/nx-libs.git Branch pr/xkb_1.3.0.0
But what about RHEL7?
Uli

Brian Lam

2018-08-24 20:23:56 UTC

Permalink

I attached the gdb output from my xterm attempt. Thanks.

Post by Brian Lam
This is messages I get in /var/log/messages when I try to open a terminal.
Aug 24 12:10:50 pleth01 /usr/bin/x2gostartagent: successfully started X2Go
Agent session with ID eminami-56-1535127048_stRTERMINAL_dp32
Aug 24 12:10:55 pleth01 /usr/bin/x2gosetkeyboard: Setting X keyboard
according to
/home/eminami/.x2go/C-eminami-56-1535127048_stRTERMINAL_dp32/keyboard
Aug 24 12:10:56 pleth01 abrt[12264]: Saved core dump of pid 12015
(/usr/bin/nxagent) to /var/spool/abrt/ccpp-2018-08-24-12:10:55-12015
(28737536 bytes)
Aug 24 12:10:56 pleth01 abrtd: Directory 'ccpp-2018-08-24-12:10:55-12015'
creation detected
Aug 24 12:10:56 pleth01 abrtd: Package 'nxagent' isn't signed with proper
key
Aug 24 12:10:56 pleth01 abrtd: 'post-create' on
'/var/spool/abrt/ccpp-2018-08-24-12:10:55-12015' exited with 1
Aug 24 12:10:56 pleth01 abrtd: Deleting problem directory
'/var/spool/abrt/ccpp-2018-08-24-12:10:55-12015'
Thanks.

Post by Brian Lam
Thanks Paul, 127.0.01 is in the /etc/hosts
127.0.0.1 localhost.localdomain localhost.localdomain
localhost4 localhost4.localdomain4 localhost
::1 localhost.localdomain localhost.localdomain localhost6
localhost6.localdomain6 localhost
Thanks Uli
Unfortunately, the software I need to use do not support RHEL7 so we have
to stick with RHEL6.
I tried opening terminal, but still have some problems. I assume
"single application > terminal" is the way to do this.
[image: image.png]
[image: image.png]

Post by Ulrich Sibiller

low

Post by Ulrich Sibiller

Post by Brian Lam
cost? I tried Xming but it's too slow to be useful. Thanks.

You can try compiling nxagent yourself, it is not that difficult. Use
that tree: https://github.com/uli42/nx-libs.git Branch pr/xkb_1.3.0.0
But what about RHEL7?
Uli

Ulrich Sibiller

2018-08-24 21:28:14 UTC

Permalink

You can try modifying /usr/bin/x2gosetkeyboard and see if it still crashes.

Uli

Brian Lam

2018-08-25 01:58:25 UTC

Permalink

Uli,

That did it!!!! SOLVED! Thanks sooo much for your help.

After looking at x2gosetkeyboard script for a while, I realized that there
was an option to manually set the keyboard in the preferences instead of
relying on auto-detect.

[image: image.png]

I was only able to connect 10% of the time on a good day; now I can
consistently connect every time. Note that this issue seems to only
happen with Windows client. My colleague working on the Mac client never
had this problem.

Thanks again!

Post by Brian Lam

Post by Brian Lam
This is messages I get in /var/log/messages when I try to open a

terminal.

Post by Brian Lam
Aug 24 12:10:50 pleth01 /usr/bin/x2gostartagent: successfully started

X2Go Agent session with ID eminami-56-1535127048_stRTERMINAL_dp32

Post by Brian Lam
Aug 24 12:10:55 pleth01 /usr/bin/x2gosetkeyboard: Setting X keyboard

according to
/home/eminami/.x2go/C-eminami-56-1535127048_stRTERMINAL_dp32/keyboard

Post by Brian Lam
Aug 24 12:10:56 pleth01 abrt[12264]: Saved core dump of pid 12015

(/usr/bin/nxagent) to /var/spool/abrt/ccpp-2018-08-24-12:10:55-12015
(28737536 bytes)
You can try modifying /usr/bin/x2gosetkeyboard and see if it still crashes.
Uli

Stefan Baur

2018-08-25 06:46:53 UTC

Permalink

Note that this issue seems to only happen with Windows client. My
colleague working on the Mac client never had this problem.

Keyboard detection and setting on the Mac uses a different approach, as
$SOMETHING on the Mac side of things is brain-dead and broken, so our
usual approach for Windows and Linux doesn't work there.

-Stefan

--
BAUR-ITCS UG (haftungsbeschränkt)
Geschäftsführer: Stefan Baur
Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364
Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

Stefan Baur

2018-08-24 18:40:38 UTC

Permalink

Hi Brian,

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.

Since xkb is something keyboard-related, maybe you could simply set
X2GoClient to not touch the keyboard settings? No guarantee that this
helps, but might be worth a try ...
Go to the "Input/Output" tab in the session configuration, section
"Keyboard", select "Do not configure keyboard". See if that helps.
If you're on a macOS client, that won't be available, though. But I
think your earlier screenshot came from Windows 10, so you might be in luck.

-Stefan

--
BAUR-ITCS UG (haftungsbeschränkt)
Geschäftsführer: Stefan Baur
Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364
Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

Paul Borowicz

2018-08-24 18:40:50 UTC

Permalink

Check your /etc/hosts
x2go doesn't like if this line is missing:
127.0.0.1 localhost

Post by Ulrich Sibiller

Post by Brian Lam
Yes I forgot the bt. This is what I get after I installed the rpm and

ran

Post by Brian Lam
gdb
./nx-libs-debuginfo-3.5.99.16-0.0build1.1.git20180719.2988.

main.el6.x86_64.rpm

copying"

from

Post by Brian Lam
/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

Post by Brian Lam
/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

Post by Brian Lam
found)...done.
Loaded symbols for /usr/lib64/libXcomposite.so.1
Reading symbols from /usr/lib64/libXinerama.so.1...(no debugging

symbols

Post by Brian Lam
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.

Post by Brian Lam
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libm.so.6...(no debugging symbols

found)...done.

symbols

Post by Brian Lam
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.

symbols

Post by Brian Lam
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

Post by Brian Lam
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

Post by Brian Lam
optimized out>) at main.c:353