Bug 362095

Summary: Kdevelop crashed when I autocompleted "global" (python3 plugin)
Product: [Developer tools] kdev-python Reporter: Benedikt Geißler <kde>
Component: generalAssignee: Sven Brauch <mail>
Status: RESOLVED FIXED    
Severity: crash CC: mail
Priority: NOR Keywords: drkonqi
Version First Reported In: 1.7.3   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: http://commits.kde.org/kdev-python/fde6913d99f9b4310c8fcc3f7d78842477f1df2e Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: the autocompletion popup

Description Benedikt Geißler 2016-04-22 16:47:58 UTC 
Application: kdevelop (4.7.3)
KDE Platform Version: 4.14.18
Qt Version: 4.8.6
Operating System: Linux 4.1.15-8-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:

I did some python3 code with Kdevelop (v4.7.3) and wanted to use a global variable. As I began to type the key word "global" a popup window (screenshot provided below) with a completion proposal appeared. Every* time when I press enter to use this completion kdevelop crashes. Thankfully Kdevelop saves all the data so that I did not notice data loss because of the crash.

* now after some minutes this bug seems to have disappeared curiously but Dr Konqui said that the backtrace is useful.

Steps to reproduce:
- open Kdevelop with the python(3) plugin
- edit a python source code file (e.g. by using the python file template)
- begin to type "global" and autocomplete it

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f91aa687800 (LWP 15530))]

Thread 20 (Thread 0x7f918df61700 (LWP 15531)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a47db86b in  () at /usr/lib64/libQtScript.so.4
#2  0x00007f91a47db8a9 in  () at /usr/lib64/libQtScript.so.4
#3  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f910cddf700 (LWP 15532)):
#0  0x00007f91a4b073e8 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f084 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f91a5d98c82 in  () at /usr/lib64/libkdevplatformlanguage.so.8
#3  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#4  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f9101aba700 (LWP 15533)):
#0  0x00007f91a111e458 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f91a111ed80 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f91a111ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f91a759cfde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f91a756ed4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f91a756f045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a746c4df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f90f3b14700 (LWP 15540)):
#0  0x00007f91a6d99c8d in read () at /lib64/libc.so.6
#1  0x00007f91a115fb60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f91a111e999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f91a111edf8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f91a111ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f91a759cfde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a756ed4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a756f045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a746c4df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#9  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#10 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f90deb34700 (LWP 15577)):
#0  0x00007f91a6d99c8d in read () at /lib64/libc.so.6
#1  0x00007f91a115fb60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f91a111e999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f91a111edf8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f91a111ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f91a759cfde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a756ed4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a756f045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a746c4df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#9  0x00007f91a7550653 in  () at /usr/lib64/libQtCore.so.4
#10 0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#11 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f90de333700 (LWP 15588)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#9  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f90e9cc6700 (LWP 15589)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f90e94c5700 (LWP 15685)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f90e880d700 (LWP 15747)):
#0  0x00007f91a6d9dbbd in poll () at /lib64/libc.so.6
#1  0x00007f91a111ee64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f91a111ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f91a759cfde in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f91a756ed4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f91a756f045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a746c4df in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f90e800c700 (LWP 15748)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f90e780b700 (LWP 15750)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#9  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#10 0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#11 0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#12 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f90ddb32700 (LWP 18284)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#6  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f90e54c7700 (LWP 18285)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#9  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#10 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f90b5a56700 (LWP 19179)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#9  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#10 0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#11 0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#12 0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#13 0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#14 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#15 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f90b5255700 (LWP 19180)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#9  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#10 0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#11 0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#12 0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#13 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f90b4a54700 (LWP 19220)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#9  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#10 0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#11 0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f90a7fff700 (LWP 19221)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#7  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f90a77fe700 (LWP 19268)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f90a6ffd700 (LWP 19269)):
#0  0x00007f91a4b0703f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f91a746f0a6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f919d05d6fc in  () at /usr/lib64/libthreadweaver.so.4
#3  0x00007f919d060193 in  () at /usr/lib64/libthreadweaver.so.4
#4  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#5  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#6  0x00007f919d0601ac in  () at /usr/lib64/libthreadweaver.so.4
#7  0x00007f919d05eeaf in ThreadWeaver::Thread::run() () at /usr/lib64/libthreadweaver.so.4
#8  0x00007f91a746ebbf in  () at /usr/lib64/libQtCore.so.4
#9  0x00007f91a4b030a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f91a6da5fed in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f91aa687800 (LWP 15530)):
[KCrash Handler]
#6  0x00007f91a5e3ff44 in KDevelop::FunctionType::arguments() const () at /usr/lib64/libkdevplatformlanguage.so.8
#7  0x00007f90e8abaaaa in  () at /usr/lib64/libkdev4pythoncompletion.so
#8  0x00007f91a5e829b1 in KDevelop::NormalDeclarationCompletionItem::execute(KTextEditor::Document*, KTextEditor::Range const&) () at /usr/lib64/libkdevplatformlanguage.so.8
#9  0x00007f90f970ffac in KateCompletionWidget::execute() () at /usr/lib64/libkatepartinterfaces.so.4
#10 0x00007f90f97dc9fc in  () at /usr/lib64/libkatepartinterfaces.so.4
#11 0x00007f90f97dbb11 in  () at /usr/lib64/libkatepartinterfaces.so.4
#12 0x00007f91a75702f6 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#13 0x00007f91a7ab577c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#14 0x00007f91a7abcf91 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#15 0x00007f91a8f0ee9a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#16 0x00007f91a757018d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#17 0x00007f91a7b4faf7 in  () at /usr/lib64/libQtGui.so.4
#18 0x00007f91a7b4fe99 in  () at /usr/lib64/libQtGui.so.4
#19 0x00007f91a7b2baaf in QApplication::x11ProcessEvent(_XEvent*) () at /usr/lib64/libQtGui.so.4
#20 0x00007f91a7b525f2 in  () at /usr/lib64/libQtGui.so.4
#21 0x00007f91a111ec84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f91a111eed8 in  () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f91a111ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f91a759cfbe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#25 0x00007f91a7b526a6 in  () at /usr/lib64/libQtGui.so.4
#26 0x00007f91a756ed4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#27 0x00007f91a756f045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#28 0x00007f91a7574499 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#29 0x0000000000410e61 in  ()
#30 0x00007f91a6ce2b05 in __libc_start_main () at /lib64/libc.so.6
#31 0x0000000000411448 in _start ()

Reported using DrKonqi
Comment 1 Benedikt Geißler 2016-04-22 16:49:02 UTC 
Created attachment 98519 [details]
the autocompletion popup
Comment 2 Kevin Funk 2016-04-23 18:15:28 UTC 

*** This bug has been marked as a duplicate of bug 328006 ***
Comment 3 Kevin Funk 2016-04-23 18:16:32 UTC 
@Scummos: Same backtrace as in: https://bugs.kde.org/show_bug.cgi?id=328006 (which was fixed in 1.7.0 times, though). Maybe the patch was not forward ported to the py3 branch?
Comment 4 Sven Brauch 2016-04-23 18:28:41 UTC 
Git commit fde6913d99f9b4310c8fcc3f7d78842477f1df2e by Sven Brauch.
Committed on 23/04/2016 at 18:28.
Pushed by brauch into branch '1.7-py3'.

Cherry-pick: Check type before accessing it to prevent crash.

Cherry-pick to 1.7-py3 branch.
Related: bug 328006

# Conflicts:
#	codecompletion/items/functiondeclaration.cpp

M  +1    -1    codecompletion/items/functiondeclaration.cpp

http://commits.kde.org/kdev-python/fde6913d99f9b4310c8fcc3f7d78842477f1df2e