Application: kdevelop (5.2.1)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

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

I was minding my own business, playing with (writing) Python code from a RasPi project. I clicked execute, using the default Python script execution set-up, and the Run console came up only saying "Running <blahblah>.py ..." but then nothing after. I clicked on the little (x) in the corner of the console to close it, and KDev crashed. Sometimes it will close successfully, but ~80% of the time, this results in a crash.

Of note: The code wasn't exactly a script, and more of a simple program.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f594710c940 (LWP 12327))]

Thread 8 (Thread 0x7f58fcaf6700 (LWP 12470)):
#0  0x00007f594378b0b4 in __GI___libc_read (fd=18, buf=0x7f58fcaf5a50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f593a6b6cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f593a672027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f593a6724e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f593cf206db in start_thread (arg=0x7f58fcaf6700) at pthread_create.c:463
#10 0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f58f7fff700 (LWP 12355)):
#0  0x00007f593a66f450 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f593a6719d3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f593a67246b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58eb42a3c5 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#8  0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f593cf206db in start_thread (arg=0x7f58f7fff700) at pthread_create.c:463
#10 0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f58fdba5700 (LWP 12335)):
#0  0x00007f594378fbf9 in __GI___poll (fds=0x7f58f8004e10, nfds=1, timeout=9960) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f593a672539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f593cf206db in start_thread (arg=0x7f58fdba5700) at pthread_create.c:463
#8  0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f59054b9700 (LWP 12333)):
#0  0x00007f593a6719e9 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f593a67246b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f593c9af6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f593cf206db in start_thread (arg=0x7f59054b9700) at pthread_create.c:463
#9  0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f590cf78700 (LWP 12332)):
#0  0x00007f59440d8200 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f59440d6a59 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f59440d7035 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f59440d8c9c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f593a671a98 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f593a67246b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f594189291b in ?? () from /usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.52
#11 0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f593cf206db in start_thread (arg=0x7f590cf78700) at pthread_create.c:463
#13 0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f591d97b700 (LWP 12331)):
#0  0x00007f594378fbf9 in __GI___poll (fds=0x7f591001bfd0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f593a672539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59440d890b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f5943e9c22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f5945de0d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f5943ea116d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f593cf206db in start_thread (arg=0x7f591d97b700) at pthread_create.c:463
#9  0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f5923c76700 (LWP 12329)):
#0  0x00007f593cf269f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f59387d3110) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x560837395950, cond=0x7f59387d30e8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f59387d30e8, mutex=0x560837395950) at pthread_cond_wait.c:655
#3  0x00007f5943b2379c in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4  0x00007f5937b140a7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#5  0x00007f5937b141e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#6  0x00007f5943b2957f in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007f593cf206db in start_thread (arg=0x7f5923c76700) at pthread_create.c:463
#8  0x00007f594379c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f594710c940 (LWP 12327)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f59436bb801 in __GI_abort () at abort.c:79
#8  0x00007f5943704897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f5943831b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007f594370b90a in malloc_printerr (str=str@entry=0x7f594382fd88 "free(): invalid pointer") at malloc.c:5350
#10 0x00007f5943712e1c in _int_free (have_lock=0, p=0x5608385cf4c0, av=0x7f5943a66c40 <main_arena>) at malloc.c:4157
#11 __GI___libc_free (mem=0x5608385cf4d0) at malloc.c:3124
#12 0x00007f5946ccb49f in ?? () from /usr/lib/x86_64-linux-gnu/libKDevPlatformShell.so.52
#13 0x00007f59440ae6cf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f5943ffa2b1 in QProcess::errorOccurred(QProcess::ProcessError) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f5944000fbe in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f5944005efd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f5943ffbaab in QProcess::waitForFinished(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f5943ffc22a in QProcess::~QProcess() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f59455242c9 in KProcess::~KProcess() () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#20 0x00007f59440ac19b in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f59440b59cb in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f59067cd963 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kdevplatform/30/kdevexecutescript.so
#23 0x00007f59440af140 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f5944dfd82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f5944e050f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f594407f9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f594408211d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f59440d92c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f593a672387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f593a6725c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f593a67264c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f59440d88ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f594407d9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f5944086a84 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x0000560835f414f7 in ?? ()
#36 0x00007f594369cb97 in __libc_start_main (main=0x560835f3b400, argc=1, argv=0x7fff7d3f8778, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7d3f8768) at ../csu/libc-start.c:310
#37 0x0000560835f41a7a in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 394856.

Possible duplicates by query: bug 394856, bug 394640, bug 392350, bug 391470, bug 390863.

Reported using DrKonqi