Application: dolphin (14.12.3)
KDE Platform Version: 4.14.6
Qt Version: 4.8.6
Operating System: Linux 3.19.0-22-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
transfering files from external media (SC or MTP). tried once with each, crashed both times.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f31bac62800 (LWP 2781))]

Thread 4 (Thread 0x7f319d808700 (LWP 2782)):
#0  0x00007f31ba5258dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31b161bebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31b161bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31b64a787e in QEventDispatcherGlib::processEvents (this=0x7f31980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f31b6476d21 in QEventLoop::processEvents (this=this@entry=0x7f319d807d80, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f31b6477085 in QEventLoop::exec (this=this@entry=0x7f319d807d80, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f31b636ae89 in QThread::exec (this=this@entry=0x17f0d50) at thread/qthread.cpp:538
#7  0x00007f31b6457493 in QInotifyFileSystemWatcherEngine::run (this=0x17f0d50) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f31b636d6ff in QThreadPrivate::start (arg=0x17f0d50) at thread/qthread_unix.cpp:349
#9  0x00007f31b1b016aa in start_thread (arg=0x7f319d808700) at pthread_create.c:333
#10 0x00007f31ba530eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f319d007700 (LWP 2783)):
#0  0x00007f31b16607a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31b161b3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31b161bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31b161bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31b64a787e in QEventDispatcherGlib::processEvents (this=0x7f31900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f31b6476d21 in QEventLoop::processEvents (this=this@entry=0x7f319d006dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f31b6477085 in QEventLoop::exec (this=this@entry=0x7f319d006dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f31b636ae89 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#8  0x00007f31b636d6ff in QThreadPrivate::start (arg=0x1870990) at thread/qthread_unix.cpp:349
#9  0x00007f31b1b016aa in start_thread (arg=0x7f319d007700) at pthread_create.c:333
#10 0x00007f31ba530eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f31963ee700 (LWP 2784)):
#0  0x00007f31b1660789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31b161be7e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31b161bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31b64a787e in QEventDispatcherGlib::processEvents (this=0x7f318c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f31b6476d21 in QEventLoop::processEvents (this=this@entry=0x7f31963edd80, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f31b6477085 in QEventLoop::exec (this=this@entry=0x7f31963edd80, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f31b636ae89 in QThread::exec (this=this@entry=0x1892fc0) at thread/qthread.cpp:538
#7  0x00007f31b6457493 in QInotifyFileSystemWatcherEngine::run (this=0x1892fc0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f31b636d6ff in QThreadPrivate::start (arg=0x1892fc0) at thread/qthread_unix.cpp:349
#9  0x00007f31b1b016aa in start_thread (arg=0x7f31963ee700) at pthread_create.c:333
#10 0x00007f31ba530eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f31bac62800 (LWP 2781)):
[KCrash Handler]
#6  deref (this=0x1b67e0940) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:133
#7  ~QString (this=0x25e8990, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:880
#8  QObjectPrivate::~QObjectPrivate (this=0x25e8960, __in_chrg=<optimized out>) at kernel/qobject.cpp:161
#9  0x00007f31b64924b4 in ~QObjectPrivate (this=0x25e8960, __in_chrg=<optimized out>) at kernel/qobject.cpp:185
#10 cleanup (pointer=0x25e8960) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#11 ~QScopedPointer (this=0x272e878, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#12 QObject::~QObject (this=0x272e870, __in_chrg=<optimized out>) at kernel/qobject.cpp:844
#13 0x00007f31b836f999 in KIO::JobUiDelegate::~JobUiDelegate (this=0x272e870, __in_chrg=<optimized out>) at ../../kio/kio/jobuidelegate.cpp:56
#14 0x00007f31b690e113 in KJob::~KJob (this=0x2741700, __in_chrg=<optimized out>) at ../../kdecore/jobs/kjob.cpp:72
#15 0x00007f31b832d9e9 in KIO::CopyJob::~CopyJob (this=0x2741700, __in_chrg=<optimized out>) at ../../kio/kio/copyjob.cpp:265
#16 0x00007f31b6491908 in QObject::event (this=0x2741700, e=<optimized out>) at kernel/qobject.cpp:1203
#17 0x00007f31b6e849bc in QApplicationPrivate::notify_helper (this=this@entry=0x147b880, receiver=receiver@entry=0x2741700, e=e@entry=0x25a28e0) at kernel/qapplication.cpp:4570
#18 0x00007f31b6e8b4d8 in QApplication::notify (this=this@entry=0x7fffc0705250, receiver=receiver@entry=0x2741700, e=e@entry=0x25a28e0) at kernel/qapplication.cpp:4356
#19 0x00007f31b7be6b4a in KApplication::notify (this=0x7fffc0705250, receiver=0x2741700, event=0x25a28e0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f31b64781cd in QCoreApplication::notifyInternal (this=0x7fffc0705250, receiver=receiver@entry=0x2741700, event=event@entry=0x25a28e0) at kernel/qcoreapplication.cpp:955
#21 0x00007f31b647ba71 in sendEvent (event=0x25a28e0, receiver=0x2741700) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x144dfc0) at kernel/qcoreapplication.cpp:1579
#23 0x00007f31b647bf03 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1472
#24 0x00007f31b64a76ee in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#25 postEventSourceDispatch (s=0x147c0b0) at kernel/qeventdispatcher_glib.cpp:300
#26 0x00007f31b161bc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f31b161bf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f31b161bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f31b64a785e in QEventDispatcherGlib::processEvents (this=0x144f8a0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#30 0x00007f31b6f2cc66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f31b6476d21 in QEventLoop::processEvents (this=this@entry=0x7fffc0705130, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f31b6477085 in QEventLoop::exec (this=this@entry=0x7fffc0705130, flags=...) at kernel/qeventloop.cpp:204
#33 0x00007f31b647cb09 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#34 0x00007f31b6e82c1c in QApplication::exec () at kernel/qapplication.cpp:3828
#35 0x00007f31ba847b5e in kdemain (argc=5, argv=0x7fffc0705398) at ../../../dolphin/src/main.cpp:93
#36 0x00007f31ba44aa40 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=5, argv=0x7fffc0705398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc0705388) at libc-start.c:289
#37 0x0000000000400709 in _start ()

Possible duplicates by query: bug 308202.

Reported using DrKonqi