#757 - Segfault of QDialog in a PyQt application

X2Go Bug report logs - #757
Segfault of QDialog in a PyQt application

Reported by: PAILLAT Olivier SOPRA GROUP <olivier.paillat@cea.fr>

Date: Thu, 22 Jan 2015 10:10:01 UTC

Severity: wishlist

Tags: pending

Merged with 758, 760

Found in version 3.5.0.31

Fixed in version 2:3.5.0.33

Done: X2Go Release Manager X2Go Release Manager <git-admin@x2go.org>

Bug is archived. No further changes may be made.

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Subject: Bug#757: [X2Go-Dev] Bug#757: Segfault of QDialog in a PyQt application
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From: PAILLAT Olivier SOPRA GROUP <olivier.paillat@cea.fr>
To: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>,
        "757@bugs.x2go.org"
	<757@bugs.x2go.org>
Thread-Topic: [X2Go-Dev] Bug#757: Segfault of QDialog in a PyQt application
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Hello, Thank you for your answer. I have made a simple python application (see the tar.gz attached) that reproduce the problem You will need PyQt4 to run it The command is simple python gui.py if it work it open a QDialog nearly empty If you reproduce the bug you will end with a segmentation fault with a very brief QDialog opening Actually we have some doubts about our environment and we won't be surprised if you don't reproduce the bug with your PyQt4 But we want to close some of the paths of explanation of our bug and since it occurs only with X2Go we submit it to you Regards Olivier PAILLAT Agence STIE Sud-Est Sopra Steria 780 rue Guillibert de la Lauzière Pichaury 2 - CS 40496 13593 Aix-en-Provence Cedex 3 France Phone: +33 (0)4 42 25 71 46 olivier.paillat@cea.fr - www.soprasteria.com Le contenu de cet e-mail est susceptible d'être confidentiel, soumis au secret professionnel ou protégé par la loi. L'utilisation, la copie et la divulgation non autorisées d'une partie ou de l'intégralité de ce message sont susceptibles d'être illégales. Si vous avez reçu ce message par erreur, supprimez-le après avoir averti l'expéditeur. Les pièces jointes du présent e-mail ont fait l'objet d'un contrôle antivirus. Néanmoins, nous déclinons toute responsabilité concernant les dommages causés par d'éventuels virus. Pensez à l'environnement avant d'imprimer. -----Message d'origine----- De : Mike Gabriel [mailto:mike.gabriel@das-netzwerkteam.de] Envoyé : jeudi 22 janvier 2015 13:53 À : PAILLAT Olivier SOPRA GROUP; 757@bugs.x2go.org Objet : Re: [X2Go-Dev] Bug#757: Segfault of QDialog in a PyQt application Control: reassign -1 x2goclient Control: reassign #758 x2goclient Control: reassign #760 x2goclient Control: merge -1 #758 Control: merge -1 #760 Control: tag -1 build-win32 Control: tag -1 moreinfo Hi Olivier, On Do 22 Jan 2015 11:07:26 CET, PAILLAT Olivier SOPRA GROUP wrote: > Package: client > Version: 4.0.3.0 > Qt 4.8.6 > > When we run our PyQt application on our Debian Wheezy computer with an > ssh -X connection it work fine But when we use X2Go to access the > computer and we run our application we've got a segmentation fault at > the first QDialog opening. (when we run QDialog.exec_). > We recently update the X2Go version and before that update it was > working fine. > We found at least one post that describe the same problem in January > 2014 on your bug report site : > X2Go Bug report logs - #410 > Segfault of _X11TransWritev in libNX_X11.so.6 with libQtGui > > Like suggested in this report if we run a simple application to test > an opening of a dialog box it work fine with X2Go > > From your experience of this bugs is there any way to solve this problem ? Please send us a little Python snippet that lets your PyQt application crash. I am currently working on the NX code tree, so your timing for submitting this bug is quite good, right now. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb

[BUG_757_QDialog.tar.gz (application/x-gzip, attachment)]

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X2Go Bug report logs - #757 Segfault of QDialog in a PyQt application

X2Go Bug report logs - #757
Segfault of QDialog in a PyQt application