[PyQt] Segmentation fault when using PyQt 5

Tue Dec 9 14:17:21 GMT 2014

Hi all.

I work on a cluster system where I cannot install rpms or debs as root so I
have to build everything. I installed python (v 2.7.8), Qt (v 5.3.1), PyQt
(v 5.3.2).

I noticed some segfault errors using matplotlib (v 1.4.2) with qt5 backend.
To check if PyQt 5 was ok or not I tried a simple code. Here is the result:

$ python
Python 2.7.8 (default, Dec 5 2014, 15:31:16)
[GCC 4.8.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

from PyQt5.QtCore import *
[60309 refs]
from PyQt5.QtWidgets import *
[85665 refs]
class Form(QWidget):
... def init(self, parent=None):
... super(Form, self).init(parent)
... nameLabel = QLabel("Name:")
... self.nameLine = QLineEdit()
... self.submitButton = QPushButton("&Submit")
... buttonLayout1 = QVBoxLayout()
... buttonLayout1.addWidget(nameLabel)
... buttonLayout1.addWidget(self.nameLine)
... buttonLayout1.addWidget(self.submitButton)
... self.submitButton.clicked.connect(self.submitContact)
... mainLayout = QGridLayout()
... mainLayout.addLayout(buttonLayout1, 0, 1)
... self.setLayout(mainLayout)
... self.setWindowTitle("Hello Qt")
... def submitContact(self):
... name = self.nameLine.text()
... if name == "":
... QMessageBox.information(self, "Empty Field", "Please enter a name and
address.")
... return
... else:
... QMessageBox.information(self, "Success!", "Hello %s!" % name)
...
[86879 refs]
if name == 'main':
... import sys
... app = QApplication(sys.argv)
... screen = Form()
... screen.show()
... sys.exit(app.exec_())
...
Segmentation fault (core dumped)
aprea at archimedes:~/graphics/matplotlib$ gdb which python core
gdb: Symbol PyBool_Type' has different size in shared object, consider
re-linking gdb: Symbol_Py_TrueStruct' has different size in shared object,
consider re-linking
gdb: Symbol _Py_ZeroStruct' has different size in shared object, consider
re-linking gdb: Symbol_Py_NoneStruct' has different size in shared object,
consider re-linking
gdb: Symbol _Py_NotImplementedStruct' has different size in shared object,
consider re-linking gdb: SymbolPyFloat_Type' has different size in shared
object, consider re-linking
Segmentation fault (core dumped)

So I also have a problem with PyQt (hopefully solving the issue with PyQt
will also solve that wit matplotlib) but I can't figure out how to solve
it. I also checked all shared objects:

$ cd /usr/local/gcc/4.8.3/python/2.7.8/lib/python2.7/site-packages/PyQt5/
$ ls
Enginio.so init.pyc QtCore.so QtGui.so QtMultimedia.so QtNetwork.so
QtPrintSupport.so QtSensors.so Qt.so QtSvg.so QtWebSockets.so
QtX11Extras.so uic
init.py QtBluetooth.so QtDesigner.so QtHelp.so QtMultimediaWidgets.so
QtPositioning.so QtQml.so QtSerialPort.so QtSql.so QtTest.so QtWidgets.so
QtXmlPatterns.so
$ ldd *.so
Enginio.so:
linux-vdso.so.1 => (0x00007fff482c0000)
libEnginio.so.1 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libEnginio.so.1
(0x00007f336f82c000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007f336f4da000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f336eea5000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f336e70c000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f336e4d9000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f336e1d5000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f336ded8000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f336dcc3000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f336d904000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f336d6ee000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f336d4bd000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f336d2b8000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f336d0b0000)
/lib64/ld-linux-x86-64.so.2 (0x00007f336fc88000)
QtBluetooth.so:
linux-vdso.so.1 => (0x00007fff9432a000)
libQt5Bluetooth.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Bluetooth.so.5 (0x00007fe4b23f1000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007fe4b1dbc000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fe4b1624000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fe4b13f0000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fe4b10ec000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fe4b0df0000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fe4b0bda000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fe4b081b000)
libQt5Concurrent.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Concurrent.so.5 (0x00007fe4b0616000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007fe4b03e4000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fe4b01cf000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fe4affcb000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fe4afdc2000)
/lib64/ld-linux-x86-64.so.2 (0x00007fe4b284e000)
QtCore.so:
linux-vdso.so.1 => (0x00007fff835f5000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f48df9a7000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f48df774000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f48df470000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f48df173000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f48def5e000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f48deb9f000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f48de989000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f48de785000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f48de57d000)
/lib64/ld-linux-x86-64.so.2 (0x00007f48e0600000)
QtDesigner.so:
linux-vdso.so.1 => (0x00007fff8db96000)
libQt5Designer.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Designer.so.5 (0x00007fcc8d4b4000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007fcc8ccb4000)
libQt5Xml.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Xml.so.5
(0x00007fcc8ca79000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007fcc8c443000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fcc8bcab000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fcc8ba78000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fcc8b773000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcc8b477000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fcc8b262000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcc8aea2000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007fcc8ac71000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fcc8aa5b000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fcc8a857000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fcc8a64f000)
/lib64/ld-linux-x86-64.so.2 (0x00007fcc8de03000)
QtGui.so:
linux-vdso.so.1 => (0x00007fff34120000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f0efa2de000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f0ef9b46000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f0ef9913000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f0ef960e000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f0ef9312000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f0ef90fd000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f0ef8d3d000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f0ef8b0c000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f0ef88f7000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f0ef86f2000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0ef84ea000)
/lib64/ld-linux-x86-64.so.2 (0x00007f0efad74000)
QtHelp.so:
linux-vdso.so.1 => (0x00007fa502a88000)
libQt5Help.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Help.so.5
(0x00007fa5025d9000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007fa501dd9000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007fa5017a4000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fa50100b000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fa500dd8000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fa500ad4000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fa5007d7000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fa5005c2000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa500203000)
libQt5CLucene.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5CLucene.so.5
(0x00007fa4ffef0000)
libQt5Sql.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Sql.so.5
(0x00007fa4ffcb1000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007fa4ff95f000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007fa4ff72d000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fa4ff518000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fa4ff313000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fa4ff10b000)
/lib64/ld-linux-x86-64.so.2 (0x00007fa502a89000)
QtMultimedia.so:
linux-vdso.so.1 => (0x00007fff97fff000)
libQt5Multimedia.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Multimedia.so.5 (0x00007f0b6a226000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007f0b69ed4000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f0b6989f000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f0b69106000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f0b68ed3000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f0b68bcf000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f0b688d2000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f0b686bd000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f0b682fe000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f0b680e8000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f0b67eb7000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f0b67cb2000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0b67aaa000)
/lib64/ld-linux-x86-64.so.2 (0x00007f0b6a79e000)
QtMultimediaWidgets.so:
linux-vdso.so.1 => (0x00007ffffaba2000)
libQt5MultimediaWidgets.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5MultimediaWidgets.so.5
(0x00007feed11a0000)
libQt5Multimedia.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Multimedia.so.5 (0x00007feed0ecd000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007feed06cd000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007feed037a000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007feecfd45000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007feecf5ad000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007feecf379000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007feecf075000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007feeced79000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007feeceb63000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007feece7a4000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007feece58e000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007feece35d000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007feece158000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007feecdf50000)
/lib64/ld-linux-x86-64.so.2 (0x00007feed15d1000)
QtNetwork.so:
linux-vdso.so.1 => (0x00007fffcdfff000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007fafd60d4000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fafd593c000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fafd5709000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fafd5404000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fafd5108000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fafd4ef3000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fafd4b33000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fafd491e000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fafd471a000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fafd4511000)
/lib64/ld-linux-x86-64.so.2 (0x00007fafd66e6000)
QtPositioning.so:
linux-vdso.so.1 => (0x00007fff4e9ff000)
libQt5Positioning.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Positioning.so.5
(0x00007f6417b9a000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f6417565000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f6416dcd000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f6416b99000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f6416895000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6416599000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f6416383000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6415fc4000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f6415d93000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f6415b7d000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f6415979000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f6415771000)
/lib64/ld-linux-x86-64.so.2 (0x00007f6418005000)
QtPrintSupport.so:
linux-vdso.so.1 => (0x00007fffacbff000)
libQt5PrintSupport.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5PrintSupport.so.5
(0x00007f90873bd000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007f9086bbd000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f9086588000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f9085def000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f9085bbc000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f90858b8000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f90855bb000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f90853a6000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f9084fe7000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f9084db5000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f9084ba0000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f908499c000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f9084793000)
/lib64/ld-linux-x86-64.so.2 (0x00007f908785b000)
QtQml.so:
linux-vdso.so.1 => (0x00007fff8d1d0000)
libQt5Qml.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Qml.so.5
(0x00007f6678375000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007f6678023000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f66779ee000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f6677255000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f6677022000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f6676d1e000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6676a21000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f667680c000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f667644d000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f6676244000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f667602f000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f6675dfd000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f6675bf9000)
/lib64/ld-linux-x86-64.so.2 (0x00007f6678c2d000)
QtSensors.so:
linux-vdso.so.1 => (0x00007fffab167000)
libQt5Sensors.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Sensors.so.5
(0x00007f209df17000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f209d8e2000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f209d14a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f209cf16000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f209cc12000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f209c916000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f209c700000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f209c341000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f209c110000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f209befa000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f209bcf6000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f209baee000)
/lib64/ld-linux-x86-64.so.2 (0x00007f209e393000)
QtSerialPort.so:
linux-vdso.so.1 => (0x00007fff919ff000)
libQt5SerialPort.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5SerialPort.so.5 (0x00007f8b3e617000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f8b3dfe2000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f8b3d84a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f8b3d616000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f8b3d312000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8b3d016000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f8b3ce00000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8b3ca41000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f8b3c810000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f8b3c5fa000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8b3c3f6000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f8b3c1ee000)
/lib64/ld-linux-x86-64.so.2 (0x00007f8b3ea4a000)
Qt.so:
linux-vdso.so.1 => (0x00007fff869d2000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fc918506000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fc918202000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fc917f06000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fc917cf0000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc917931000)
/lib64/ld-linux-x86-64.so.2 (0x00007fc91893d000)
QtSql.so:
linux-vdso.so.1 => (0x00007fff38bff000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007f5c200bb000)
libQt5Sql.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Sql.so.5
(0x00007f5c1fe7c000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f5c1f847000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f5c1f0ae000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f5c1ee7b000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f5c1eb77000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f5c1e87a000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f5c1e665000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5c1e2a6000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f5c1e074000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f5c1de5f000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f5c1dc5b000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f5c1da52000)
/lib64/ld-linux-x86-64.so.2 (0x00007f5c20b13000)
QtSvg.so:
linux-vdso.so.1 => (0x00007fffc5bff000)
libQt5Svg.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Svg.so.5
(0x00007fbbc70a2000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007fbbc68a2000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007fbbc626d000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fbbc5ad4000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fbbc58a1000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fbbc559d000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fbbc52a0000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fbbc508b000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fbbc4ccc000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fbbc4ab6000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007fbbc4885000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fbbc4680000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fbbc4478000)
/lib64/ld-linux-x86-64.so.2 (0x00007fbbc7508000)
QtTest.so:
linux-vdso.so.1 => (0x00007fffaf1ff000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007fd9c0774000)
libQt5Test.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Test.so.5
(0x00007fd9c0549000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007fd9bff14000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007fd9bf77b000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fd9bf548000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007fd9bf244000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd9bef47000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007fd9bed32000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd9be973000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007fd9be741000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007fd9be52c000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd9be328000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd9be11f000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd9c118c000)
QtWebSockets.so:
linux-vdso.so.1 => (0x00007fff96bff000)
libQt5WebSockets.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5WebSockets.so.5 (0x00007f32fe88b000)
libQt5Sql.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Sql.so.5
(0x00007f32fe64c000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007f32fe2fa000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f32fdcc4000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f32fd52c000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f32fd2f9000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f32fcff4000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f32fccf8000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f32fcae3000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f32fc723000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f32fc50e000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f32fc2dc000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f32fc0d8000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f32fbed0000)
/lib64/ld-linux-x86-64.so.2 (0x00007f32fecc8000)
QtWidgets.so:
linux-vdso.so.1 => (0x00007fff869ff000)
libQt5Widgets.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Widgets.so.5
(0x00007f3524f32000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f35248fd000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f3524165000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f3523f31000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f3523c2d000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3523931000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f352371b000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f352335c000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f352312b000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f3522f15000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3522d11000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3522b09000)
/lib64/ld-linux-x86-64.so.2 (0x00007f3525e55000)
QtX11Extras.so:
linux-vdso.so.1 => (0x00007fff44bff000)
libQt5X11Extras.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5X11Extras.so.5 (0x00007f5212b09000)
libQt5Gui.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Gui.so.5
(0x00007f52124d4000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f5211d3c000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f5211b08000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f5211804000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f5211508000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f52112f2000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5210f33000)
libpng16.so.16 => /usr/local/gcc/4.8.3//png/1.6.0/lib/libpng16.so.16
(0x00007f5210d02000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f5210aec000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f52108e8000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f52106e0000)
/lib64/ld-linux-x86-64.so.2 (0x00007f5212f13000)
QtXmlPatterns.so:
linux-vdso.so.1 => (0x00007fff9d94e000)
libQt5XmlPatterns.so.5 =>
/usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5XmlPatterns.so.5
(0x00007f1311b1b000)
libQt5Network.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Network.so.5
(0x00007f13117c9000)
libQt5Core.so.5 => /usr/local/gcc/4.8.3/qt/5.3.1/lib/libQt5Core.so.5
(0x00007f1311031000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f1310dfd000)
libstdc++.so.6 => /usr/local/gcc/4.8.3/gcc/lib64/libstdc++.so.6
(0x00007f1310af9000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f13107fd000)
libgcc_s.so.1 => /usr/local/gcc/4.8.3/gcc/lib64/libgcc_s.so.1
(0x00007f13105e7000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1310228000)
libz.so.1 => /usr/local/gcc/4.8.3/zlib/1.2.7/lib/libz.so.1
(0x00007f1310013000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f130fe0e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f130fc06000)
/lib64/ld-linux-x86-64.so.2 (0x00007f1312339000)

Everything looks ok to me. Do you have any suggestion about how to debug my
problem?

Thanks in advance.
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