On 04/04/15 18:56, Baz Walter wrote:
On 04/04/15 09:23, Phil Thompson wrote:
The current QScintilla snapshot is a release candidate for v2.9. Please
test.
Hello Phil
I'm currently getting segfaults whenever I close a QScintilla widget in
a program that otherwise works fine with the current stable releases.
I don't have a simple test case at the moment, but after opening a blank
editor and then immediately closing it, I get the backtrace below.
This is on Linux (gcc 4.9.2) using all the latest snapshots with the
Python bindings (Python3/Qt5):
Hi Phil
Here's a simple test case that segfaults every time for me after I click
the "Test" button:
import sys
from PyQt5 import QtWidgets, Qsci
class Window(QtWidgets.QWidget):
def __init__(self):
super().__init__()
self.editor = Qsci.QsciScintilla(self)
self.button = QtWidgets.QPushButton('Test', self)
self.button.clicked.connect(self.handleButton)
layout = QtWidgets.QVBoxLayout(self)
layout.addWidget(self.editor)
layout.addWidget(self.button)
def handleButton(self):
self.editor.deleteLater()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = Window()
window.show()
app.exec_()
And here's the backtrace:
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe83f0700 (LWP 1439)]
Program received signal SIGSEGV, Segmentation fault.
0x00007fffeb690525 in Window::GetPosition() () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
(gdb) bt
#0 0x00007fffeb690525 in Window::GetPosition() () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#1 0x00007fffeb690739 in Window::GetClientPosition() () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#2 0x00007fffeb856a23 in Editor::GetClientDrawingRectangle() () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#3 0x00007fffeb857341 in Editor::RectangleFromRange(Range, int) () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#4 0x00007fffeb857877 in Editor::InvalidateRange(int, int) () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#5 0x00007fffeb857e63 in Editor::InvalidateCaret() () from
/home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#6 0x00007fffeb692e3f in QsciScintillaQt::timerEvent(QTimerEvent*) ()
from /home/usr/opt/snapshot5-3/lib/qt5/lib/libqscintilla2.so.12
#7 0x00007ffff551f023 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#8 0x00007ffff5dd4acc in QApplicationPrivate::notify_helper(QObject*,
QEvent*) () from /usr/lib/libQt5Widgets.so.5
#9 0x00007ffff5dd9f10 in QApplication::notify(QObject*, QEvent*) ()
from /usr/lib/libQt5Widgets.so.5
#10 0x00007ffff65ba79e in sipQApplication::notify(QObject*, QEvent*) ()
from
/home/usr/opt/snapshot5-3/lib/python3.4/site-packages/PyQt5/QtWidgets.so
#11 0x00007ffff54edd1b in QCoreApplication::notifyInternal(QObject*,
QEvent*) () from /usr/lib/libQt5Core.so.5
#12 0x00007ffff5544f6d in QTimerInfoList::activateTimers() () from
/usr/lib/libQt5Core.so.5
#13 0x00007ffff55453b1 in ?? () from /usr/lib/libQt5Core.so.5
#14 0x00007ffff4a3a71d in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#15 0x00007ffff4a3aa08 in ?? () from /usr/lib/libglib-2.0.so.0
#16 0x00007ffff4a3aabc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#17 0x00007ffff5546077 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib/libQt5Core.so.5
#18 0x00007ffff54eb7b2 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#19 0x00007ffff54f318c in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#20 0x00007ffff651f38b in meth_QApplication_exec_ () from
/home/usr/opt/snapshot5-3/lib/python3.4/site-packages/PyQt5/QtWidgets.so
#21 0x00007ffff7a46508 in call_function (oparg=<optimized out>,
pp_stack=0x7fffffffe280) at Python/ceval.c:4234
#22 PyEval_EvalFrameEx (f=0x7ffff6b95438, throwflag=<optimized out>) at
Python/ceval.c:2836
#23 0x00007ffff7a47793 in PyEval_EvalCodeEx (_co=0x97e2b8,
_co@entry=0x7ffff6a8e1e0, globals=0x0, globals@entry=0x7ffff6b92348,
locals=0x7fffeb8566d0 <Editor::GetClientRectangle() const>,
locals@entry=0x7ffff6b92348, args=0x0, argcount=1, argcount@entry=0,
kws=0x2,
kws@entry=0x0, kwcount=-156704288, defs=0x0, defcount=0,
kwdefs=0x0, closure=0x0) at Python/ceval.c:3585
#24 0x00007ffff7a4783b in PyEval_EvalCode (co=co@entry=0x7ffff6a8e1e0,
globals=globals@entry=0x7ffff6b92348, locals=locals@entry=0x7ffff6b92348)
at Python/ceval.c:773
#25 0x00007ffff7a7061e in run_mod (arena=0x6c8550, flags=0x7fffffffe4e0,
locals=0x7ffff6b92348, globals=0x7ffff6b92348, filename=0x7ffff6a85af0,
mod=0x68bf10) at Python/pythonrun.c:2180
#26 PyRun_FileExFlags (fp=<optimized out>, filename_str=<optimized out>,
start=<optimized out>, globals=0x7ffff6b92348, locals=0x7ffff6b92348,
closeit=1, flags=0x7fffffffe4e0) at Python/pythonrun.c:2133
#27 0x00007ffff7a71a33 in PyRun_SimpleFileExFlags (fp=0x97e2b8,
fp@entry=0x6920a0, filename=0x7ffff6b89350 "test_qsci_29.py", closeit=1,
flags=0x45504f52505f5445, flags@entry=0x7fffffffe4e0) at
Python/pythonrun.c:1606
#28 0x00007ffff7a72833 in PyRun_AnyFileExFlags (fp=fp@entry=0x6920a0,
filename=<optimized out>, closeit=closeit@entry=1,
flags=flags@entry=0x7fffffffe4e0) at Python/pythonrun.c:1292
#29 0x00007ffff7a8cff4 in run_file (p_cf=0x7fffffffe4e0,
filename=0x629060 L"test_qsci_29.py", fp=0x6920a0) at Modules/main.c:319
#30 Py_Main (argc=argc@entry=2, argv=argv@entry=0x602010) at
Modules/main.c:751
#31 0x0000000000400a81 in main (argc=2, argv=<optimized out>) at
./Modules/python.c:69
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