Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Robert Kudyba 

> On Mar 1, 2017, at 9:29 AM, Robert Dinse  wrote:
> 
> Very odd.

What a mess there are a couple of moving targets:

1) https://bugzilla.redhat.com/show_bug.cgi?id=1417431 
 which requires enabling 
of the updates-testing repo.
2) This command ultimately worked: dnf --enablerepo updates-testing downgrade 
mesa-* --allowerasing

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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Robert Dinse 


 Very odd.

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On Wed, 1 Mar 2017, Robert Kudyba wrote:


Date: Wed, 1 Mar 2017 09:26:03 -0500
From: Robert Kudyba <rkud...@fordham.edu>
To: Robert Dinse <nan...@eskimo.com>
Cc: Mihai Moldovan <io...@ionic.de>,
"x2go-user@lists.x2go.org" <x2go-user@lists.x2go.org>
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
    getting x2gostartagent: blocking creation of agent's keyboard file


I applied all the upgrades, and downgraded mesa-libGL and everything
worked.  Added the following to /etc/dnf/dnf.conf:

exclude=mesa-libGL

To prevent it from being upgraded until such time as that issue is
resolved.


Hm I get this error with this command:

[SKIPPED] mesa-libGL-12.0.3-3.fc25.x86_64.rpm: Already downloaded
[SKIPPED] mesa-libglapi-12.0.3-3.fc25.x86_64.rpm: Already downloaded
[SKIPPED] mesa-libGL-12.0.3-3.fc25.i686.rpm: Already downloaded
[SKIPPED] mesa-libglapi-12.0.3-3.fc25.i686.rpm: Already downloaded
[SKIPPED] mesa-libGLES-12.0.3-3.fc25.x86_64.rpm: Already downloaded
[SKIPPED] mesa-libGL-devel-12.0.3-3.fc25.x86_64.rpm: Already downloaded
[SKIPPED] mesa-libOSMesa-12.0.3-3.fc25.x86_64.rpm: Already downloaded
(8/12): libglvnd-devel-0.2.999-6.git28867bb.fc25.x86_64.rpm 


 437 kB/s |  19 kB 00:00
(9/12): libglvnd-0.2.999-6.git28867bb.fc25.x86_64.rpm   


 2.7 MB/s | 238 kB 00:00
(10/12): libglvnd-0.2.999-6.git28867bb.fc25.i686.rpm


 2.7 MB/s | 241 kB 00:00
(11/12): mesa-libEGL-12.0.3-3.fc25.x86_64.rpm   


 1.4 MB/s |  96 kB 00:00
(12/12): mesa-libEGL-12.0.3-3.fc25.i686.rpm 


 2.6 MB/s | 100 kB 00:00
-
Total   


 1.1 MB/s | 694 kB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful 
transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction check error:
 file /usr/include/glvnd/GLdispatchABI.h from install of 
libglvnd-devel-0.2.999-6.git28867bb.fc25.x86_64 conflicts with file from 
package libglvnd-core-devel-1:0.2.999-10.gitdc16f8c.fc25.x86_64



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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Robert Kudyba 
> I applied all the upgrades, and downgraded mesa-libGL and everything
> worked.  Added the following to /etc/dnf/dnf.conf:
> 
> exclude=mesa-libGL
> 
> To prevent it from being upgraded until such time as that issue is
> resolved.

Hm I get this error with this command:

[SKIPPED] mesa-libGL-12.0.3-3.fc25.x86_64.rpm: Already downloaded   


   
[SKIPPED] mesa-libglapi-12.0.3-3.fc25.x86_64.rpm: Already downloaded


   
[SKIPPED] mesa-libGL-12.0.3-3.fc25.i686.rpm: Already downloaded 


   
[SKIPPED] mesa-libglapi-12.0.3-3.fc25.i686.rpm: Already downloaded  


   
[SKIPPED] mesa-libGLES-12.0.3-3.fc25.x86_64.rpm: Already downloaded 


   
[SKIPPED] mesa-libGL-devel-12.0.3-3.fc25.x86_64.rpm: Already downloaded 


   
[SKIPPED] mesa-libOSMesa-12.0.3-3.fc25.x86_64.rpm: Already downloaded   


   
(8/12): libglvnd-devel-0.2.999-6.git28867bb.fc25.x86_64.rpm 


 437 kB/s |  19 kB 00:00
(9/12): libglvnd-0.2.999-6.git28867bb.fc25.x86_64.rpm   


 2.7 MB/s | 238 kB 00:00
(10/12): libglvnd-0.2.999-6.git28867bb.fc25.i686.rpm


 2.7 MB/s | 241 kB 00:00
(11/12): mesa-libEGL-12.0.3-3.fc25.x86_64.rpm   


 1.4 MB/s |  96 kB 00:00
(12/12): mesa-libEGL-12.0.3-3.fc25.i686.rpm 


 2.6 MB/s | 100 kB 00:00
-
Total   


 1.1 MB/s | 694 kB 00:00 
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful 
transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction check error:
  file /usr/include/glvnd/GLdispatchABI.h from install of 
libglvnd-devel-0.2.999-6.git28867bb.fc25.x86_64 conflicts with file from 
package libglvnd-core-devel-1:0.2.999-10.gitdc16f8c.fc25.x86_64

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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Robert Dinse 


 I applied all the upgrades, and downgraded mesa-libGL and everything
worked.  Added the following to /etc/dnf/dnf.conf:

 exclude=mesa-libGL

 To prevent it from being upgraded until such time as that issue is
resolved.

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On Wed, 1 Mar 2017, Mihai Moldovan wrote:


Date: Wed, 1 Mar 2017 10:02:31 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Norman Gaywood <ngayw...@une.edu.au>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file

On 28.02.2017 11:43 PM, Norman Gaywood wrote:

This might be the update to Mesa in Fedora

https://bugzilla.redhat.com/show_bug.cgi?id=1427174

A lot of programs won't start in my XFCE desktop under x2go. Even xfce4-terminal

The temporary fix is to downgrade mesa:

dnf downgrade mesa-libGL --allowerasing


Very useful information, thanks!

I had the user run glxinfo and on Fedora 25, he got the exact same message.

I wasn't able to reproduce it on Debian Jessie. There, glxinfo could query the
GLX version information correctly and also reported working direct rendering via
SGI 1.2/MESA 1.4 Gallium software renderer (or the like, I don't remember the
specifics, but certainly not an error.)

Initially I thought this might be a problem with nx-libs. If it's really a bug
in MESA, that would be good, because is a chance this problem can be fixed by
fixing up MESA itself.



Mihai




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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Mihai Moldovan 
On 01.03.2017 09:01 AM, Robert Dinse wrote:
>   With Fedora 25 it was working with Mate fine for me until very recently,
> as recently as February 7th.  Then some update broke it.  Because several 
> things were updated simultaneously, x2go, mate, and libc, it is hard to know
> which was the cause but mate-session and many xfce programs all core with
> a segfault in libc.
> 
>   I am now in the process of restoring the machine from a February 7th
> backup and will update things individually to determine which broke.

Please check the other messages to the thread, it looks like a MESA upgrade
provoked these failures.



Mihai




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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Mihai Moldovan 
On 28.02.2017 11:43 PM, Norman Gaywood wrote:
> This might be the update to Mesa in Fedora
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1427174
> 
> A lot of programs won't start in my XFCE desktop under x2go. Even 
> xfce4-terminal
> 
> The temporary fix is to downgrade mesa:
> 
> dnf downgrade mesa-libGL --allowerasing

Very useful information, thanks!

I had the user run glxinfo and on Fedora 25, he got the exact same message.

I wasn't able to reproduce it on Debian Jessie. There, glxinfo could query the
GLX version information correctly and also reported working direct rendering via
SGI 1.2/MESA 1.4 Gallium software renderer (or the like, I don't remember the
specifics, but certainly not an error.)

Initially I thought this might be a problem with nx-libs. If it's really a bug
in MESA, that would be good, because is a chance this problem can be fixed by
fixing up MESA itself.



Mihai




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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-03-01 Thread Robert Dinse 


 With Fedora 25 it was working with Mate fine for me until very recently,
as recently as February 7th.  Then some update broke it.  Because several 
things were updated simultaneously, x2go, mate, and libc, it is hard to know

which was the cause but mate-session and many xfce programs all core with
a segfault in libc.

 I am now in the process of restoring the machine from a February 7th
backup and will update things individually to determine which broke.

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On Tue, 28 Feb 2017, Robert Kudyba wrote:


Date: Tue, 28 Feb 2017 15:37:19 -0500
From: Robert Kudyba <rkud...@fordham.edu>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file



On Feb 28, 2017, at 11:51 AM, Mihai Moldovan <io...@ionic.de> wrote:

On 28.02.2017 05:31 PM, Robert Kudyba wrote:

My colleague is giving up on MATE. And XFCE has been having intermittent issues 
and here are some errors/logs. Anything stick out?


Difficult to say without knowing what to look for?

I've seen kgpg crashing in that log, but that may or may not be a problem.

The missing Composite and Fixes extensions are normal - you won't get any
compositing effects, but that's okay.

Other than that, there's no major problem recorded in there.


This said, I've had a user on FC25 yesterday on IRC and he has reported problems
with Emacs - which was built with GTK3 support. After he rebuilt it with GTK2,
it started to work.

I also (ab)used him to test MATE and found out that mate-session is crashing
upon start. Any GTK3 application crashes, basically, because of a bug in al
ibrary used by GTK3 (libepoxy), that has been filed in Red Hats bugtracker for
Fedora 24 already and fixed upstream for a while.

The root cause of that is that for some reason the GLX version is not reported
correctly - instead a NULL pointer is thrown out. I don't see this behavior on
Debian Jessie, which hints at a deeper problem with our nx-libs builds on Fedora
25 (and maybe even 24?)

I haven't yet been able to figure out why nxagent isn't doing what it should be
doing, though.


Yes that emacs crash has been an issue for quite a while: 
https://bugzilla.redhat.com/show_bug.cgi?id=1349412 
<https://bugzilla.redhat.com/show_bug.cgi?id=1349412>

Now I have a core dump to share with MATE and some logs from the server side. 
No errors under my user name but hope these are helpful:

Feb 28 15:27:18 myworkstation systemd-logind: New session 2039 of user myuser.
Feb 28 15:27:18 myworkstation /usr/bin/x2gostartagent: x2gostartagent called 
with options: 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D MATE both
Feb 28 15:27:18 myworkstation /usr/bin/x2gosessionlimit[13047]: 
x2gosessionlimit has been called
Feb 28 15:27:18 myworkstation /usr/bin/x2golistsessions[13050]: 
x2golistsessions has been called with options: --all-servers
Feb 28 15:27:20 myworkstation /usr/sbin/x2gocleansessions[15005]: 
myuser-59-1488313639_stDMATE_dp32: state file for this session does not exist: 
/tmp/.x2go-myuser/C-myuser-59-1488313639_stDMATE_dp32/state (this can be 
ignored during session startups)
Feb 28 15:27:21 myworkstation /usr/bin/x2gofeature: x2gofeature called with 
options: X2GO_RUN_EXTENSIONS
Feb 28 15:27:21 myworkstation 
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: 
x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Feb 28 15:27:21 myworkstation /usr/bin/x2goserver-run-extensions: 
x2goserver-run-extensions called with options: 
myuser-59-1488313639_stDMATE_dp32 pre-start
Feb 28 15:27:21 myworkstation /usr/bin/x2gostartagent: successfully started 
X2Go agent session with ID myuser-59-1488313639_stDMATE_dp32
Feb 28 15:27:21 myworkstation /usr/bin/x2gofeature: x2gofeature called with 
options: X2GO_RUN_EXTENSIONS
Feb 28 15:27:21 myworkstation 
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: 
x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Feb 28 15:27:21 myworkstation /usr/bin/x2goserver-run-extensions: 
x2goserver-run-extensions called with options: 
myuser-59-1488313639_stDMATE_dp32 post-start
Feb 28 15:27:22 myworkstation /usr/bin/x2gostartagent: blocking creation of 
agent's keyboard file 
/tmp/.x2go-myuser/C-myuser-59-1488313639_stDMATE_dp32/keyboard as requested by 
session startup command
Feb 28 15:27:22 myworkstation /usr/bin/x2goruncommand: x2goruncommand called 
with options: 59 13246 myuser-59-1488313639_stDMATE_dp32 35964 mate-session 
nosnd D
Feb 28 15:27:22 myworkstation /usr/bin/x2gofeature: x2gofeature called with 
options: X2GO_RUN

Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-28 Thread Norman Gaywood 
This might be the update to Mesa in Fedora

https://bugzilla.redhat.com/show_bug.cgi?id=1427174

A lot of programs won't start in my XFCE desktop under x2go. Even
xfce4-terminal

The temporary fix is to downgrade mesa:

dnf downgrade mesa-libGL --allowerasing


On 1 March 2017 at 03:51, Mihai Moldovan  wrote:

> On 28.02.2017 05:31 PM, Robert Kudyba wrote:
> > My colleague is giving up on MATE. And XFCE has been having intermittent
> issues and here are some errors/logs. Anything stick out?
>
> Difficult to say without knowing what to look for?
>
> I've seen kgpg crashing in that log, but that may or may not be a problem.
>
> The missing Composite and Fixes extensions are normal - you won't get any
> compositing effects, but that's okay.
>
> Other than that, there's no major problem recorded in there.
>
>
> This said, I've had a user on FC25 yesterday on IRC and he has reported
> problems
> with Emacs - which was built with GTK3 support. After he rebuilt it with
> GTK2,
> it started to work.
>
> I also (ab)used him to test MATE and found out that mate-session is
> crashing
> upon start. Any GTK3 application crashes, basically, because of a bug in al
> ibrary used by GTK3 (libepoxy), that has been filed in Red Hats bugtracker
> for
> Fedora 24 already and fixed upstream for a while.
>
> The root cause of that is that for some reason the GLX version is not
> reported
> correctly - instead a NULL pointer is thrown out. I don't see this
> behavior on
> Debian Jessie, which hints at a deeper problem with our nx-libs builds on
> Fedora
> 25 (and maybe even 24?)
>
> I haven't yet been able to figure out why nxagent isn't doing what it
> should be
> doing, though.
>
>
>
> Mihai
>
>
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-- 
Norman Gaywood, Computer Systems Officer
School of Science and Technology
University of New England
Armidale NSW 2351, Australia

ngayw...@une.edu.au  http://turing.une.edu.au/~ngaywood
Phone: +61 (0)2 6773 2412  Mobile: +61 (0)4 7862 0062

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See http://www.gnu.org/philosophy/no-word-attachments.html
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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-28 Thread Mihai Moldovan 
On 28.02.2017 05:31 PM, Robert Kudyba wrote:
> My colleague is giving up on MATE. And XFCE has been having intermittent 
> issues and here are some errors/logs. Anything stick out?

Difficult to say without knowing what to look for?

I've seen kgpg crashing in that log, but that may or may not be a problem.

The missing Composite and Fixes extensions are normal - you won't get any
compositing effects, but that's okay.

Other than that, there's no major problem recorded in there.


This said, I've had a user on FC25 yesterday on IRC and he has reported problems
with Emacs - which was built with GTK3 support. After he rebuilt it with GTK2,
it started to work.

I also (ab)used him to test MATE and found out that mate-session is crashing
upon start. Any GTK3 application crashes, basically, because of a bug in al
ibrary used by GTK3 (libepoxy), that has been filed in Red Hats bugtracker for
Fedora 24 already and fixed upstream for a while.

The root cause of that is that for some reason the GLX version is not reported
correctly - instead a NULL pointer is thrown out. I don't see this behavior on
Debian Jessie, which hints at a deeper problem with our nx-libs builds on Fedora
25 (and maybe even 24?)

I haven't yet been able to figure out why nxagent isn't doing what it should be
doing, though.



Mihai



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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-26 Thread Robert Dinse 


 For what it's worth I applied same updates to a Ubuntu 16.10 machine and
things still worked with Mate afterwards.

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On Sun, 26 Feb 2017, Robert Dinse wrote:


Date: Sun, 26 Feb 2017 06:08:42 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file


On Sun, 26 Feb 2017, Mihai Moldovan wrote:


On 26.02.2017 10:25 AM, Robert Dinse wrote:

  In my case it is the x2goagent on the server.  I can not find a core
however.


Do you have the same symptom? Is MATE not starting up at all?
Or is it crashing after the session has been running for some time already?


Mate starts up and runs but it usually crashes when I'm opening a 
terminal, editing a file, or doing upgrades.


However there was a new x2goserver and some related files tonight that
installed during an upgrade and then after that a rather large update that
involved 400 some packages and it didn't explode.

I poked about, opened terminals, vi'd files, etc, could not get it to
crash so not sure tonights update didn't fix it.  If it crashes again and I
can get a core dump, I will send a backtrace like I did for the problems I 
was

having under Ubuntu.

Thank you very much for fixing those BTW.

Normally, core files tend to sit in the user's home dir - but that depends 
upon some circumstances (like whether creating core dumps at all is allowed 
or not - with different systems utilizing different methods of getting this 
to work.)


Yes, that is where I usually find them but they were not in my home
directory.  I have to take a look at settings, might be the default has the
core file size set to zero or turned off.  I have not really changed much 
from

the system defaults on that machine.


Fedora and RHEL-based distros use ABRT (Automatic Bug Reporting Tool),
which stashes the core dumps and can easily send them to Red Hat's Bugzilla
instance.


If it is a developer other than RedHat it will not.  It will instead 
just
pop up a message telling you such and such crashed and is not a RedHat 
product

and if you want it fixed to contact the developer.


The general place to look at is probably /etc/security/limits.conf for
core dumping permissions and then figure out what ABRT exactly does.


Was limited to 10MB (1K), increased to 100MB (core).

Well looks like it's gotten more fun.  Now the session will not start up 
at all.  Blitzed and re-installed, these are the packages installed:


Downloading Packages:
(1/13): perl-Config-Simple-4.59-23.fc25.noarch. 126 kB/s |  39 kB 00:00
(2/13): pwgen-2.07-3.fc24.x86_64.rpm 63 kB/s |  30 kB 00:00
(3/13): x2goserver-4.1.0.0-0.0x2go1.0.git201702 116 kB/s |  92 kB 00:00
(4/13): perl-X2Go-Log-4.1.0.0-0.0x2go1.0.git201  74 kB/s |  36 kB 00:00
(5/13): perl-X2Go-Server-4.1.0.0-0.0x2go1.0.git  73 kB/s |  46 kB 00:00
(6/13): x2goserver-common-4.1.0.0-0.0x2go1.0.gi  78 kB/s |  37 kB 00:00
(7/13): perl-X2Go-Server-DB-4.1.0.0-0.0x2go1.0. 100 kB/s |  48 kB 00:00
(8/13): x2goserver-extensions-4.1.0.0-0.0x2go1. 121 kB/s |  38 kB 00:00
(9/13): x2goagent-3.5.0.33-0.0x2go1.0.git201611  34 kB/s |  17 kB 00:00
(10/13): x2goserver-xsession-4.1.0.0-0.0x2go1.0  53 kB/s |  37 kB 00:00
(11/13): libXcompshad3-3.5.99.3-0.0build1.fc25. 134 kB/s |  33 kB 00:00
(12/13): libNX_X11-6-3.5.99.3-0.0build1.fc25.x8 190 kB/s | 608 kB 00:03
(13/13): nxagent-3.5.99.3-0.0build1.fc25.x86_64 137 kB/s | 1.6 MB 00:11

Total   194 kB/s | 2.6 MB 00:13

Still will not start any longer.

.xsession-x2go-fedora.eskimo.com-errors contained only:
XSession-x2go: X session started for root at Sun Feb 26 05:23:02 PST 2017

It is actually mate-session that is exploding thusly:

gdb /usr/bin/mate-session core.2131
GNU gdb (GDB) Fedora 7.12.1-46.fc25
Copyright (C) 2017 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".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other doc

Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-26 Thread Robert Dinse 


On Sun, 26 Feb 2017, Mihai Moldovan wrote:


On 26.02.2017 10:25 AM, Robert Dinse wrote:

  In my case it is the x2goagent on the server.  I can not find a core
however.


Do you have the same symptom? Is MATE not starting up at all?
Or is it crashing after the session has been running for some time already?


 Mate starts up and runs but it usually crashes when I'm opening a 
terminal, editing a file, or doing upgrades.


 However there was a new x2goserver and some related files tonight that
installed during an upgrade and then after that a rather large update that
involved 400 some packages and it didn't explode.

 I poked about, opened terminals, vi'd files, etc, could not get it to
crash so not sure tonights update didn't fix it.  If it crashes again and I
can get a core dump, I will send a backtrace like I did for the problems I was
having under Ubuntu.

 Thank you very much for fixing those BTW.

Normally, core files tend to sit in the user's home dir - but that depends 
upon some circumstances (like whether creating core dumps at all is allowed 
or not - with different systems utilizing different methods of getting this 
to work.)


 Yes, that is where I usually find them but they were not in my home
directory.  I have to take a look at settings, might be the default has the
core file size set to zero or turned off.  I have not really changed much from
the system defaults on that machine.


Fedora and RHEL-based distros use ABRT (Automatic Bug Reporting Tool),
which stashes the core dumps and can easily send them to Red Hat's Bugzilla
instance.


 If it is a developer other than RedHat it will not.  It will instead just
pop up a message telling you such and such crashed and is not a RedHat product
and if you want it fixed to contact the developer.


The general place to look at is probably /etc/security/limits.conf for
core dumping permissions and then figure out what ABRT exactly does.


 Was limited to 10MB (1K), increased to 100MB (core).

 Well looks like it's gotten more fun.  Now the session will not start up 
at all.  Blitzed and re-installed, these are the packages installed:


Downloading Packages:
(1/13): perl-Config-Simple-4.59-23.fc25.noarch. 126 kB/s |  39 kB 00:00
(2/13): pwgen-2.07-3.fc24.x86_64.rpm 63 kB/s |  30 kB 00:00
(3/13): x2goserver-4.1.0.0-0.0x2go1.0.git201702 116 kB/s |  92 kB 00:00
(4/13): perl-X2Go-Log-4.1.0.0-0.0x2go1.0.git201  74 kB/s |  36 kB 00:00
(5/13): perl-X2Go-Server-4.1.0.0-0.0x2go1.0.git  73 kB/s |  46 kB 00:00
(6/13): x2goserver-common-4.1.0.0-0.0x2go1.0.gi  78 kB/s |  37 kB 00:00
(7/13): perl-X2Go-Server-DB-4.1.0.0-0.0x2go1.0. 100 kB/s |  48 kB 00:00
(8/13): x2goserver-extensions-4.1.0.0-0.0x2go1. 121 kB/s |  38 kB 00:00
(9/13): x2goagent-3.5.0.33-0.0x2go1.0.git201611  34 kB/s |  17 kB 00:00
(10/13): x2goserver-xsession-4.1.0.0-0.0x2go1.0  53 kB/s |  37 kB 00:00
(11/13): libXcompshad3-3.5.99.3-0.0build1.fc25. 134 kB/s |  33 kB 00:00
(12/13): libNX_X11-6-3.5.99.3-0.0build1.fc25.x8 190 kB/s | 608 kB 00:03
(13/13): nxagent-3.5.99.3-0.0build1.fc25.x86_64 137 kB/s | 1.6 MB 00:11

Total   194 kB/s | 2.6 MB 00:13

 Still will not start any longer.

.xsession-x2go-fedora.eskimo.com-errors contained only:
XSession-x2go: X session started for root at Sun Feb 26 05:23:02 PST 2017

 It is actually mate-session that is exploding thusly:

gdb /usr/bin/mate-session core.2131
GNU gdb (GDB) Fedora 7.12.1-46.fc25
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
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".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/mate-session...Reading symbols from 
/usr/bin/mate-session...(no debugging symbols found)...done.

(no debugging symbols found)...done.
[New LWP 2131]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `mate-session'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x7f11a26bf35f in rawmemchr () from /lib64/libc.so.6
Missing separate debuginfos, use: dnf debuginfo-install 
mate-session-manager-1.16.1-1.fc25.x86_64

(gdb) bt
#0  0x7f11a26bf35f in rawmemchr () at /lib64/libc.so.6
#1  0x7f11a26a7832 in

Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-26 Thread Mihai Moldovan 
On 26.02.2017 10:25 AM, Robert Dinse wrote:
>   In my case it is the x2goagent on the server.  I can not find a core
> however.

Do you have the same symptom? Is MATE not starting up at all?
Or is it crashing after the session has been running for some time already?

Normally, core files tend to sit in the user's home dir - but that depends
upon some circumstances (like whether creating core dumps at all is
allowed or not - with different systems utilizing different methods of
getting this to work.)

Fedora and RHEL-based distros use ABRT (Automatic Bug Reporting Tool),
which stashes the core dumps and can easily send them to Red Hat's Bugzilla
instance.

The general place to look at is probably /etc/security/limits.conf for
core dumping permissions and then figure out what ABRT exactly does.

If you want to have ABRT out of the way,
echo "core" > /proc/sys/kernel/core_pattern
will take care of that.



Mihai



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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-26 Thread Robert Dinse 


On Sat, 25 Feb 2017, Robert Kudyba wrote:



connecting to a Fedora 25 server with NIS, choosing the MATE desktop and

audio

disabled. We made sure to check the security settings as per this older

post

screenshot
 and

confirmed the .Xauthority permissions problem
 does

not

exist. Here are some debug-enabled logs.


What exactly does crash and when? The client? x2goagent on the server?


 In my case it is the x2goagent on the server.  I can not find a core
however.

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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Robert Dinse 


 I can't find a core and I did my best to make it crash but it does not
seem to be in the mood tonight however dmesg did reveal this:

[168764.604757] x2goagent[2794]: segfault at c1 ip 55fa1ed65ccc sp 
7ffedf8a7c40 error 4 in nxagent[55fa1ed22000+42f000]


 This is on a mate spin of fedora-25 running in a KVM/Qemu virtual machine
on i7-6700k platform.  If I can find a core file I'll do a backtrace and 
forward it but did not find one in any of the directories I normally work in.


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On Sun, 26 Feb 2017, Mihai Moldovan wrote:


Date: Sun, 26 Feb 2017 06:36:24 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Kudyba <rkud...@fordham.edu>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file

On 26.02.2017 06:29 AM, Robert Kudyba wrote:

Well kind of had to build in the XFCE work around mentioned in this bug
<http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1083>.

Here's what in the log with XFCE:


The non-working MATE log would be more interesting, given that XFCE actually
works in your setup. :)



Mihai




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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Mihai Moldovan 
On 26.02.2017 06:29 AM, Robert Kudyba wrote:
> Well kind of had to build in the XFCE work around mentioned in this bug
> .
> 
> Here's what in the log with XFCE:

The non-working MATE log would be more interesting, given that XFCE actually
works in your setup. :)



Mihai




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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Robert Kudyba 
> connecting to a Fedora 25 server with NIS, choosing the MATE desktop and
audio
> disabled. We made sure to check the security settings as per this older
post
> screenshot
>  and
> confirmed the .Xauthority permissions problem
>  does
not
> exist. Here are some debug-enabled logs.

What exactly does crash and when? The client? x2goagent on the server?


The X2Go client on his Mac desktop just goes black and kicks him out.

We have been working around it with XFCE and then using the work around for
DBUS when the same user is logged in via ssh and X2go.
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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Robert Dinse 


 Actually that's not entirely true when I say I am not on a Mac, I am on
a Mac Pro 1,1 but it is running the 64-bit version of Ubuntu 16.10.

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On Sat, 25 Feb 2017, Robert Dinse wrote:


Date: Sat, 25 Feb 2017 20:44:07 -0800 (PST)
From: Robert Dinse <nan...@eskimo.com>
To: Mihai Moldovan <io...@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file


I am not on a Mac, running Ubuntu with the very latest 4.0.0.1 nightly
build x2go client and connecting to Fedora, and only Fedora also with the 
Mate

desktop, nxagent cores on Fedora on a regular basis.  I do not have this
problem with Centos 6/7, Scientific Linux 6/7, all of which are Redhat 
releases, only with Fedora. Mint, Deb, and Ubuntu are all stable for me now,

the only other OS I have issues with is OpenSuse and that because I can't run
the latest release owing to the inavailability of a modern LibNX there.

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On Sun, 26 Feb 2017, Mihai Moldovan wrote:


Date: Sun, 26 Feb 2017 05:38:51 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Kudyba <rkud...@fordham.edu>, x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
    getting x2gostartagent: blocking creation of agent's keyboard file

On 17.02.2017 07:41 PM, Robert Kudyba wrote:
This only seems to be affecting one user. He has a NIS account and has 
tried 2
NIS accounts to make sure. He's running a Mac with the latest X2Go 
(2.7.11)


You probably meant XQuartz here.


connecting to a Fedora 25 server with NIS, choosing the MATE desktop and 
audio
disabled. We made sure to check the security settings as per this older 
post

screenshot
<http://lists.x2go.org/pipermail/x2go-dev/attachments/20151013/f02b140a/attachment-0001.png> 
and

confirmed the .Xauthority permissions problem
<http://lists.x2go.org/pipermail/x2go-dev/2015-October/010733.html> does 
not

exist. Here are some debug-enabled logs.


What exactly does crash and when? The client? x2goagent on the server?



Mihai



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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Robert Dinse 


 I am not on a Mac, running Ubuntu with the very latest 4.0.0.1 nightly
build x2go client and connecting to Fedora, and only Fedora also with the Mate
desktop, nxagent cores on Fedora on a regular basis.  I do not have this
problem with Centos 6/7, Scientific Linux 6/7, all of which are Redhat 
releases, only with Fedora. Mint, Deb, and Ubuntu are all stable for me now,

the only other OS I have issues with is OpenSuse and that because I can't run
the latest release owing to the inavailability of a modern LibNX there.

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On Sun, 26 Feb 2017, Mihai Moldovan wrote:


Date: Sun, 26 Feb 2017 05:38:51 +0100
From: Mihai Moldovan <io...@ionic.de>
To: Robert Kudyba <rkud...@fordham.edu>, x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user
getting x2gostartagent: blocking creation of agent's keyboard file

On 17.02.2017 07:41 PM, Robert Kudyba wrote:

This only seems to be affecting one user. He has a NIS account and has tried 2
NIS accounts to make sure. He's running a Mac with the latest X2Go (2.7.11)


You probably meant XQuartz here.



connecting to a Fedora 25 server with NIS, choosing the MATE desktop and audio
disabled. We made sure to check the security settings as per this older post
screenshot
<http://lists.x2go.org/pipermail/x2go-dev/attachments/20151013/f02b140a/attachment-0001.png>
 and
confirmed the .Xauthority permissions problem
<http://lists.x2go.org/pipermail/x2go-dev/2015-October/010733.html> does not
exist. Here are some debug-enabled logs.


What exactly does crash and when? The client? x2goagent on the server?



Mihai



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Re: [X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-25 Thread Mihai Moldovan 
On 17.02.2017 07:41 PM, Robert Kudyba wrote:
> This only seems to be affecting one user. He has a NIS account and has tried 2
> NIS accounts to make sure. He's running a Mac with the latest X2Go (2.7.11)

You probably meant XQuartz here.


> connecting to a Fedora 25 server with NIS, choosing the MATE desktop and audio
> disabled. We made sure to check the security settings as per this older post
> screenshot
> 
>  and
> confirmed the .Xauthority permissions problem
>  does not
> exist. Here are some debug-enabled logs. 

What exactly does crash and when? The client? x2goagent on the server?



Mihai



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[X2Go-User] X2Go crash from Mac/MATE to Fedora 25 w NIS user getting x2gostartagent: blocking creation of agent's keyboard file

2017-02-17 Thread Robert Kudyba 
This only seems to be affecting one user. He has a NIS account and has
tried 2 NIS accounts to make sure. He's running a Mac with the latest X2Go
(2.7.11) connecting to a Fedora 25 server with NIS, choosing the MATE
desktop and audio disabled. We made sure to check the security settings as per
this older post screenshot

and
confirmed the .Xauthority permissions problem
 does
not exist. Here are some debug-enabled logs.

Feb 16 21:11:57 ourserver /usr/bin/x2gostartagent: x2gostartagent called
with options: 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D MATE
both
Feb 16 21:11:57 ourserver /usr/bin/x2gosessionlimit[25474]:
x2gosessionlimit has been called
Feb 16 21:11:57 ourserver /usr/bin/x2golistsessions[25477]:
x2golistsessions has been called with options: --all-servers
Feb 16 21:11:59 ourserver /usr/sbin/x2gocleansessions[26305]:
NISuser-64-1487297518_stDMATE_dp32: state file for this session does not
exist: /tmp/.x2go-NISuser/C-NISuser-64-1487297518_stDMATE_dp32/state (this
can be ignored during session startups)
Feb 16 21:12:00 ourserver /usr/bin/x2gofeature: x2gofeature called with
options: X2GO_RUN_EXTENSIONS
Feb 16 21:12:00 ourserver
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Feb 16 21:12:00 ourserver /usr/bin/x2goserver-run-extensions:
x2goserver-run-extensions called with options:
NISuser-64-1487297518_stDMATE_dp32 pre-start
Feb 16 21:12:00 ourserver /usr/bin/x2gostartagent: successfully started
X2Go agent session with ID NISuser-64-1487297518_stDMATE_dp32
Feb 16 21:12:00 ourserver /usr/bin/x2gofeature: x2gofeature called with
options: X2GO_RUN_EXTENSIONS
Feb 16 21:12:00 ourserver
/usr/share/x2go/x2gofeature.d/x2goserver-extensions.features:
x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Feb 16 21:12:00 ourserver /usr/bin/x2goserver-run-extensions:
x2goserver-run-extensions called with options:
NISuser-64-1487297518_stDMATE_dp32 post-start
Feb 16 21:12:01 ourserver /usr/bin/x2gostartagent: blocking creation of
agent's keyboard file
/tmp/.x2go-NISuser/C-NISuser-64-1487297518_stDMATE_dp32/keyboard as
requested by session startup command
Feb 16 21:12:05 ourserver audit: CRYPTO_KEY_USER pid=25308 uid=0 auid=
ses=916 msg='op=destroy kind=server
fp=SHA256:ed:ac:95:b9:6d:a7:65:a8:79:a8:79:4e:41:3c:6b:58:c8:5b:37:10:c1:6a:bc:8f:2f:1c:f1:00:98:4f:2a:78
direction=? spid=25774 suid=  exe="/usr/sbin/sshd" hostname=? addr=?
terminal=? res=success'
Feb 16 21:12:05 ourserver /usr/bin/x2gocmdexitmessage: x2gocmdexitmessage
called with options: NISuser-64-1487297518_stDMATE_dp32
Feb 16 21:12:05 ourserver audit: USER_END pid=25308 uid=0 auid= ses=916
msg='op=PAM:session_close
grantors=pam_selinux,pam_loginuid,pam_selinux,pam_namespace,pam_keyinit,pam_keyinit,pam_limits,pam_systemd,pam_unix
acct="NISuser" exe="/usr/sbin/sshd" hostname=ipaddress addr=ipaddress
terminal=ssh res=success'
Feb 16 21:12:05 ourserver audit: CRED_DISP pid=25308 uid=0 auid=
ses=916 msg='op=PAM:setcred grantors=pam_unix acct="NISuser"
exe="/usr/sbin/sshd" hostname=ipaddress addr=ipaddress terminal=ssh
res=success'
Feb 16 21:12:05 ourserver audit: USER_END pid=25308 uid=0 auid= ses=916
msg='op=login id= exe="/usr/sbin/sshd" hostname=ipaddress
addr=ipaddress terminal=ssh res=success'
Feb 16 21:12:05 ourserver audit: USER_LOGOUT pid=25308 uid=0 auid=
ses=916 msg='op=login id= exe="/usr/sbin/sshd" hostname=ipaddress
addr=ipaddress terminal=ssh res=success'
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