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List: pykde
Subject: [PyQt] PyQt5 segfault on exit
From: pwuertz <pwuertz () gmail ! com>
Date: 2014-09-08 17:35:31
Message-ID: 1410197731405-5070867.post () n6 ! nabble ! com
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I also get segmentation faults in about 1 out of 10 runs when closing a PyQt5
application on multiple machines/systems (Ubuntu 14.04 and 14.10) and
configurations (python2 and python3, pyqt5 from distribution and self
compiled). The test application is a single QQuickView window with a
Rectangle as root object.
Although I ran python3-dbg within gdb I don't seem to get any useful
information from the bt, but "info threads" points at QXcbEventReader, as
reported by Roger Leigh:
(gdb) info threads
Id Target Id Frame
6 Thread 0x7fffd632d700 (LWP 3651) "QSGRenderThread"
pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
5 Thread 0x7fffd7dff700 (LWP 3650) "QThread" 0x00007ffff6b8bc6d in poll
()
at ../sysdeps/unix/syscall-template.S:81
4 Thread 0x7fffdce57700 (LWP 3649) "gdbus" 0x00007ffff6b8bc6d in poll
()
at ../sysdeps/unix/syscall-template.S:81
3 Thread 0x7fffdd86a700 (LWP 3648) "dconf worker" 0x00007ffff6b8bc6d in
poll () at ../sysdeps/unix/syscall-template.S:81
* 2 Thread 0x7fffe8ea9700 (LWP 3647) "QXcbEventReader" 0x00007fffec0d2729
in ?? ()
1 Thread 0x7ffff7fd0740 (LWP 3643) "python3-dbg" 0x00007fffeff45340 in
??
() from /usr/lib/nvidia-331/libnvidia-glcore.so.331.38
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