X2Go Bug report logs - #410
Segfault of _X11TransWritev in libNX_X11.so.6 with libQtGui

version graph

Package: nxagent; Maintainer for nxagent is X2Go Developers <x2go-dev@lists.x2go.org>; Source for nxagent is src:nx-libs.

Reported by: Sven Willenberger <swillenberger@upsicorp.com>

Date: Fri, 24 Jan 2014 02:50:02 UTC

Severity: normal

Merged with 113, 467

Found in version

Done: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Bug is archived. No further changes may be made.

Full log

Message #40 received at 410@bugs.x2go.org (full text, mbox, reply):

Received: (at 410) by bugs.x2go.org; 30 Jun 2014 15:32:27 +0000
From swillenberger@upsicorp.com  Mon Jun 30 17:32:26 2014
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
Received: from mx-gw-ral1.upsicorp.com (mx-gw-ral1.upsicorp.com [])
	by ymir.das-netzwerkteam.de (Postfix) with ESMTP id 60FB65DB53
	for <410@bugs.x2go.org>; Mon, 30 Jun 2014 17:32:26 +0200 (CEST)
Received: from dogpound (cpe-098-026-067-234.nc.res.rr.com [])
	by mx-gw-ral1.upsicorp.com (Postfix) with ESMTPSA id BBC3D9CC36;
	Mon, 30 Jun 2014 11:27:55 -0400 (EDT)
Date: Mon, 30 Jun 2014 11:32:14 -0400
From: Sven Willenberger <swillenberger@upsicorp.com>
To: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Cc: 410@bugs.x2go.org
Subject: Re: Bug#410: Segfault of _X11TransWritev in libNX_X11.so.6 with
Message-ID: <20140630113214.456e7e00@dogpound>
In-Reply-To: <20140630112207.Horde.UFf4CV_SdcYpiTa_l-mbgg7@mail.das-netzwerkteam.de>
References: <20140123213919.0cba2367@dogpound>
Organization: United Pay Systems
X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.24; x86_64-unknown-linux-gnu)
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=SHA1;
[Message part 1 (text/plain, inline)]
On Mon, 30 Jun 2014 11:22:07 +0000
Mike Gabriel <mike.gabriel@das-netzwerkteam.de> wrote:

> Hi Sven,
> I really cannot reproduce the above issue on Debian.
> But I have a suspicion...
> Can you please check on Archlinux if you have the two other symlinks  
> that are required for Xinerama to work?
> """ (quoted from above...)
> +       # Provide means for Xinerama support in NX/X2Go sessions. This
> +       # This also requires two post-install symlinks:
> +       # (DESTDIR)$(NXLIBDIR)/X11/Xinerama/libNX_X11.so.6 ->  
> /usr/<libdir>/libX11.so.6
> +       # (DESTDIR)$(NXLIBDIR)/X11/Xinerama/libNX_Xext.so.6 ->  
> /usr/<libdir>/libXext.so.6
> """
> If those are missing, please file a bug against the x2goserver
> package in Archlinux. The correct links have to be provided by the
> package maintainer (not by us upstream people).
> If those links are missing: can you please create them and give  
> feedback if the problem still occurs for you?
> And...
> Is my assumption correct that this bug only occurs if Xinerama has  
> been enabled in the X2Go session's session profile (see profile  
> manager window in X2Go Client).
> Greets+Thanks!
> Mike

I went ahead and changed the PKGBUILD file (Archlinux's package
building spec file) to include the symlinks as you pointed out (and as
are contained as comments in the Makefile) and rebuilt the package. It
works!! (pyQt, PySide, vlc all work now). That was the fix that was
needed and will report this to the package maintainers.

Regarding your assumption, it is actually incorrect. I do not have
Xinerama checked as an option in my session profile (it is unchecked)
so that had no bearing on the issue rearing itself.


Sven Willenberger
United Pay Systems International

[smime.p7s (application/pkcs7-signature, attachment)]

Send a report that this bug log contains spam.

X2Go Developers <owner@bugs.x2go.org>. Last modified: Thu Aug 13 12:36:30 2020; Machine Name: ymir.das-netzwerkteam.de

X2Go Bug tracking system

Debbugs is free software and licensed under the terms of the GNU Public License version 2. The current version can be obtained from https://bugs.debian.org/debbugs-source/.

Copyright © 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson, 2005-2017 Don Armstrong, and many other contributors.