Application: kwrite (17.04.2)

Qt Version: 5.7.1
Frameworks Version: 5.35.0
Operating System: Linux 4.8.0-53-generic x86_64
Distribution: KDE neon LTS User Edition 5.8

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

1. I opened a large HTML file (dump from facebook.com), which had much of its contents on one line
2. I tried to edit it, but KWrite proved too slow, with long pauses when trying to mark text using the mouse, and long reaction times to keystrokes
3. I clicked the close-window button (X)
4. KWrite took a while to react to it and then reacted by crashing

-- Backtrace:
Application: KWrite (kwrite), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbeeeddb900 (LWP 4567))]

Thread 2 (Thread 0x7fbecffff700 (LWP 4599)):
#0  0x00007fbeeb6a7b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fbee5c4a38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbee5c4a49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbeebfc775b in QEventDispatcherGlib::processEvents (this=0x7fbec80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fbeebf720ba in QEventLoop::exec (this=this@entry=0x7fbecfffec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fbeebda1f64 in QThread::exec (this=this@entry=0x7fbeeeee6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#6  0x00007fbeeee72735 in QDBusConnectionManager::run (this=0x7fbeeeee6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007fbeebda6b48 in QThreadPrivate::start (arg=0x7fbeeeee6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#8  0x00007fbee78b06ba in start_thread (arg=0x7fbecffff700) at pthread_create.c:333
#9  0x00007fbeeb6b382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbeeeddb900 (LWP 4567)):
[KCrash Handler]
#6  0x000000000244b3e0 in ?? ()
#7  0x00007fbed74abea6 in qDeleteAll<QList<Phonon::MediaObject*>::const_iterator> (end=..., begin=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:323
#8  qDeleteAll<QList<Phonon::MediaObject*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:331
#9  NotifyByAudio::~NotifyByAudio (this=0x28c9e00, __in_chrg=<optimized out>) at /workspace/build/src/notifybyaudio.cpp:46
#10 0x00007fbed74abf39 in NotifyByAudio::~NotifyByAudio (this=0x28c9e00, __in_chrg=<optimized out>) at /workspace/build/src/notifybyaudio.cpp:48
#11 0x00007fbeebf9d663 in QObjectPrivate::deleteChildren (this=this@entry=0x28c88a0) at kernel/qobject.cpp:1970
#12 0x00007fbeebfa6814 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1041
#13 0x00007fbed7485309 in KNotificationManagerSingleton::~KNotificationManagerSingleton (this=<optimized out>, __in_chrg=<optimized out>) at /workspace/build/src/knotificationmanager.cpp:61
#14 (anonymous namespace)::Q_QGS_s_self::Holder::~Holder (this=<optimized out>, __in_chrg=<optimized out>) at /workspace/build/src/knotificationmanager.cpp:67
#15 0x00007fbeeb5e6ff8 in __run_exit_handlers (status=0, listp=0x7fbeeb9705f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#16 0x00007fbeeb5e7045 in __GI_exit (status=<optimized out>) at exit.c:104
#17 0x00007fbeeb5cd837 in __libc_start_main (main=0x4090f0 <main(int, char**)>, argc=1, argv=0x7ffd2162ddf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd2162dde8) at ../csu/libc-start.c:325
#18 0x000000000040b769 in _start ()

Reported using DrKonqi