He, he, thanks for the hint... Running QGIS through gdb ("gdb ./output/bin/qgis") and then calling "bt" gave "No stack".
However, when I ran just "./output/bin/qgis" I got: src/app/main.cpp: 428: (main) [0ms] Starting qgis main No protocol specified Warning: qgis: cannot connect to X server :4 Stacktrace (piped through c++filt): ./output/bin/qgis[0x40573d] ./output/bin/qgis[0x405923] /usr/lib/x86_64-linux-gnu/libQtCore.so.4(qt_message_output(QtMsgType, char const*)+0x21)[0x7f5a2f8eabb1] /usr/lib/x86_64-linux-gnu/libQtCore.so.4(+0x70ff9)[0x7f5a2f8eaff9] /usr/lib/x86_64-linux-gnu/libQtCore.so.4(qWarning(char const*, ...)+0x94)[0x7f5a2f8eb244] /usr/lib/x86_64-linux-gnu/libQtGui.so.4(+0x23db42)[0x7f5a2ee04b42] /usr/lib/x86_64-linux-gnu/libQtGui.so.4(QApplicationPrivate::construct(_XDisplay*, unsigned long, unsigned long)+0xc8)[0x7f5a2ed94a78] /usr/lib/x86_64-linux-gnu/libQtGui.so.4(QApplication::QApplication(int&, char**, bool, int)+0x69)[0x7f5a2ed94e19] /data/src/QGIS/qgis-2.12/output/lib/libqgis_core.so.2.12.0(QgsApplication::QgsApplication(int&, char**, bool, QString const&)+0x3c)[0x7f5a3094ab70] ./output/bin/qgis[0x4072ea] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7f5a2e309ec5] ./output/bin/qgis[0x405179] src/core/qgsmessagelog.cpp: 45: (logMessage) [60ms] 2015-11-19T06:56:36 Qt[1] qgis: cannot connect to X server :4 I am running QGIS through VNC (which X Server :4 refers to). Yet, maybe the issue is due to missing restart after kernel update? Cheers, Sefan -----Original Message----- From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Jürgen E. Fischer Sent: 19. november 2015 00:52 To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] QGIS Segmentation fault On Wed, 18. Nov 2015 at 23:26:25 +0000, Blumentrath, Stefan wrote: > Thanks for the instruction. Here is my backtrace: > > pdb ./output/bin/qgis gdb not pdb. > From: Matthias Kuhn [mailto:matth...@opengis.ch] > > cd build > gdb ./output/bin/qgis > run > ... wait for the crash > bt > ... copy paste Jürgen -- Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31 Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de QGIS release manager (PSC) Germany IRC: jef on FreeNode _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user