Bug 353937

Summary: Drag/Drop problem
Product: [Applications] dolphin Reporter: abtaylr <abtaylr>
Component: generalAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: crash CC: elvis.angelaccio, frank78ac, mail, roczech+kde
Priority: NOR Keywords: drkonqi
Version: 16.12.2   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description abtaylr@comcast.net 2015-10-15 19:25:32 UTC 
Application: dolphin (14.12.3)
KDE Platform Version: 4.14.6
Qt Version: 4.8.6
Operating System: Linux 3.19.0-25-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed: I was attempting to drag-drop a file from Dolphin over to Firefox opened to GitHub, Inc

-- 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 0x7fee644ec800 (LWP 2953))]

Thread 6 (Thread 0x7fee446f4700 (LWP 2956)):
#0  0x00007fee63daf8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fee5aea5ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee5aea6242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee4a97aaf6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fee5aecc955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fee5b38b6aa in start_thread (arg=0x7fee446f4700) at pthread_create.c:333
#6  0x00007fee63dbaeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fee43ef3700 (LWP 2957)):
#0  0x00007fee63daf8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fee5aea5ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee5aea6009 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee5aecc955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fee5b38b6aa in start_thread (arg=0x7fee43ef3700) at pthread_create.c:333
#6  0x00007fee63dbaeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fee3ac82700 (LWP 2958)):
#0  0x00007fee5aeea7a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fee5aea58b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee5aea5e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee5fd3187e in QEventDispatcherGlib::processEvents (this=0x7fee300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007fee5fd00d21 in QEventLoop::processEvents (this=this@entry=0x7fee3ac81d80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fee5fd01085 in QEventLoop::exec (this=this@entry=0x7fee3ac81d80, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fee5fbf4e89 in QThread::exec (this=this@entry=0x20c08c0) at thread/qthread.cpp:538
#8  0x00007fee5fce1493 in QInotifyFileSystemWatcherEngine::run (this=0x20c08c0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007fee5fbf76ff in QThreadPrivate::start (arg=0x20c08c0) at thread/qthread_unix.cpp:349
#10 0x00007fee5b38b6aa in start_thread (arg=0x7fee3ac82700) at pthread_create.c:333
#11 0x00007fee63dbaeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fee3a481700 (LWP 2959)):
#0  0x00007fee63daf8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fee5aea5ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee5fd3187e in QEventDispatcherGlib::processEvents (this=0x7fee280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007fee5fd00d21 in QEventLoop::processEvents (this=this@entry=0x7fee3a480dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fee5fd01085 in QEventLoop::exec (this=this@entry=0x7fee3a480dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fee5fbf4e89 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#7  0x00007fee5fbf76ff in QThreadPrivate::start (arg=0x202d1a0) at thread/qthread_unix.cpp:349
#8  0x00007fee5b38b6aa in start_thread (arg=0x7fee3a481700) at pthread_create.c:333
#9  0x00007fee63dbaeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fee39608700 (LWP 2960)):
#0  0x00007fee5aeea789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fee5aea5409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee5aea5de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee5fd3187e in QEventDispatcherGlib::processEvents (this=0x7fee2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007fee5fd00d21 in QEventLoop::processEvents (this=this@entry=0x7fee39607d80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fee5fd01085 in QEventLoop::exec (this=this@entry=0x7fee39607d80, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fee5fbf4e89 in QThread::exec (this=this@entry=0x1d06a30) at thread/qthread.cpp:538
#8  0x00007fee5fce1493 in QInotifyFileSystemWatcherEngine::run (this=0x1d06a30) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007fee5fbf76ff in QThreadPrivate::start (arg=0x1d06a30) at thread/qthread_unix.cpp:349
#10 0x00007fee5b38b6aa in start_thread (arg=0x7fee39608700) at pthread_create.c:333
#11 0x00007fee63dbaeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fee644ec800 (LWP 2953)):
[KCrash Handler]
#6  QDragManager::move (this=0x2935010, globalPos=...) at kernel/qdnd_x11.cpp:1698
#7  0x00007fee6079e4a9 in QDragManager::eventFilter (this=0x2935010, o=<optimized out>, e=<optimized out>) at kernel/qdnd_x11.cpp:1308
#8  0x00007fee5fd022a2 in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=this@entry=0x1ca1960, receiver=receiver@entry=0x2957da0, event=event@entry=0x7ffdffc5a330) at kernel/qcoreapplication.cpp:1046
#9  0x00007fee6070e948 in QApplicationPrivate::notify_helper (this=this@entry=0x1ca1960, receiver=receiver@entry=0x2957da0, e=e@entry=0x7ffdffc5a330) at kernel/qapplication.cpp:4545
#10 0x00007fee6071563f in QApplication::notify (this=this@entry=0x7ffdffc5c3b0, receiver=receiver@entry=0x2957da0, e=e@entry=0x7ffdffc5a330) at kernel/qapplication.cpp:4113
#11 0x00007fee61470b4a in KApplication::notify (this=0x7ffdffc5c3b0, receiver=0x2957da0, event=0x7ffdffc5a330) at ../../kdeui/kernel/kapplication.cpp:311
#12 0x00007fee5fd021cd in QCoreApplication::notifyInternal (this=0x7ffdffc5c3b0, receiver=receiver@entry=0x2957da0, event=event@entry=0x7ffdffc5a330) at kernel/qcoreapplication.cpp:955
#13 0x00007fee60714c9f in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#14 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x2957da0, event=event@entry=0x7ffdffc5a330, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x2957da0, buttonDown=buttonDown@entry=0x7fee6123c578 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3178
#15 0x00007fee6078e9a2 in QETWidget::translateMouseEvent (this=this@entry=0x2957da0, event=event@entry=0x7ffdffc5a690) at kernel/qapplication_x11.cpp:4632
#16 0x00007fee6078e24c in QApplication::x11ProcessEvent (this=0x7ffdffc5c3b0, event=event@entry=0x7ffdffc5a690) at kernel/qapplication_x11.cpp:3626
#17 0x00007fee607b6ba2 in x11EventSourceDispatch (s=0x1ca3cc0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#18 0x00007fee5aea5c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fee5aea5f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fee5fd3185e in QEventDispatcherGlib::processEvents (this=0x1c618a0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#22 0x00007fee607b6c66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007fee5fd00d21 in QEventLoop::processEvents (this=this@entry=0x2958320, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fee5fd01085 in QEventLoop::exec (this=this@entry=0x2958320, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007fee6079e7ad in QDragManager::drag (this=0x2935010, o=o@entry=0x221d530) at kernel/qdnd_x11.cpp:2032
#26 0x00007fee607205aa in QDrag::exec (this=this@entry=0x221d530, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::CopyAction) at kernel/qdrag.cpp:284
#27 0x00007fee630b6d52 in KItemListController::startDragging (this=this@entry=0x1d178b0) at ../../../dolphin/src/kitemviews/kitemlistcontroller.cpp:1176
#28 0x00007fee630b6ea0 in KItemListController::mouseMoveEvent (this=0x1d178b0, event=0x7ffdffc5b480, transform=...) at ../../../dolphin/src/kitemviews/kitemlistcontroller.cpp:687
#29 0x00007fee630b327c in KItemListController::processEvent (this=0x1d178b0, event=event@entry=0x7ffdffc5b480, transform=...) at ../../../dolphin/src/kitemviews/kitemlistcontroller.cpp:1012
#30 0x00007fee630c5892 in KItemListView::event (this=0x215c700, event=0x7ffdffc5b480) at ../../../dolphin/src/kitemviews/kitemlistview.cpp:908
#31 0x00007fee6070e9bc in QApplicationPrivate::notify_helper (this=this@entry=0x1ca1960, receiver=receiver@entry=0x215c700, e=e@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:4570
#32 0x00007fee607154d8 in QApplication::notify (this=this@entry=0x7ffdffc5c3b0, receiver=receiver@entry=0x215c700, e=e@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:4356
#33 0x00007fee61470b4a in KApplication::notify (this=0x7ffdffc5c3b0, receiver=0x215c700, event=0x7ffdffc5b480) at ../../kdeui/kernel/kapplication.cpp:311
#34 0x00007fee5fd021cd in QCoreApplication::notifyInternal (this=0x7ffdffc5c3b0, receiver=0x215c700, event=event@entry=0x7ffdffc5b480) at kernel/qcoreapplication.cpp:955
#35 0x00007fee6070ce26 in sendSpontaneousEvent (event=event@entry=0x7ffdffc5b480, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#36 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:5568
#37 0x00007fee60d2293e in QGraphicsScenePrivate::sendEvent (this=<optimized out>, item=0x215c710, event=0x7ffdffc5b480) at graphicsview/qgraphicsscene.cpp:1217
#38 0x00007fee60d22e37 in QGraphicsScenePrivate::sendMouseEvent (this=0x2167910, mouseEvent=0x7ffdffc5b480) at graphicsview/qgraphicsscene.cpp:1295
#39 0x00007fee60d2ca36 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7ffdffc5b480) at graphicsview/qgraphicsscene.cpp:4102
#40 0x00007fee60d39b4f in QGraphicsScene::event (this=0x2167860, event=0x7ffdffc5b480) at graphicsview/qgraphicsscene.cpp:3451
#41 0x00007fee6070e9bc in QApplicationPrivate::notify_helper (this=this@entry=0x1ca1960, receiver=receiver@entry=0x2167860, e=e@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:4570
#42 0x00007fee607154d8 in QApplication::notify (this=this@entry=0x7ffdffc5c3b0, receiver=receiver@entry=0x2167860, e=e@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:4356
#43 0x00007fee61470b4a in KApplication::notify (this=0x7ffdffc5c3b0, receiver=0x2167860, event=0x7ffdffc5b480) at ../../kdeui/kernel/kapplication.cpp:311
#44 0x00007fee5fd021cd in QCoreApplication::notifyInternal (this=0x7ffdffc5c3b0, receiver=0x2167860, event=event@entry=0x7ffdffc5b480) at kernel/qcoreapplication.cpp:955
#45 0x00007fee6070ce26 in sendSpontaneousEvent (event=event@entry=0x7ffdffc5b480, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#46 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffdffc5b480) at kernel/qapplication.cpp:5568
#47 0x00007fee60d4fe98 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x2168020, event=event@entry=0x7ffdffc5bb50) at graphicsview/qgraphicsview.cpp:646
#48 0x00007fee60d50f2a in QGraphicsView::mouseMoveEvent (this=0x2167ff0, event=0x7ffdffc5bb50) at graphicsview/qgraphicsview.cpp:3276
#49 0x00007fee60761dc8 in QWidget::event (this=0x2167ff0, event=0x7ffdffc5bb50) at kernel/qwidget.cpp:8775
#50 0x00007fee60b2864e in QFrame::event (this=0x2167ff0, e=0x7ffdffc5bb50) at widgets/qframe.cpp:557
#51 0x00007fee60d526e1 in QGraphicsView::viewportEvent (this=0x2167ff0, event=0x7ffdffc5bb50) at graphicsview/qgraphicsview.cpp:2866
#52 0x00007fee5fd02336 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1ca1960, receiver=receiver@entry=0x216a2e0, event=event@entry=0x7ffdffc5bb50) at kernel/qcoreapplication.cpp:1065
#53 0x00007fee6070e99c in QApplicationPrivate::notify_helper (this=this@entry=0x1ca1960, receiver=receiver@entry=0x216a2e0, e=e@entry=0x7ffdffc5bb50) at kernel/qapplication.cpp:4566
#54 0x00007fee6071563f in QApplication::notify (this=this@entry=0x7ffdffc5c3b0, receiver=receiver@entry=0x216a2e0, e=e@entry=0x7ffdffc5bb50) at kernel/qapplication.cpp:4113
#55 0x00007fee61470b4a in KApplication::notify (this=0x7ffdffc5c3b0, receiver=0x216a2e0, event=0x7ffdffc5bb50) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x00007fee5fd021cd in QCoreApplication::notifyInternal (this=0x7ffdffc5c3b0, receiver=receiver@entry=0x216a2e0, event=event@entry=0x7ffdffc5bb50) at kernel/qcoreapplication.cpp:955
#57 0x00007fee60714c9f in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#58 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x216a2e0, event=event@entry=0x7ffdffc5bb50, alienWidget=alienWidget@entry=0x216a2e0, nativeWidget=nativeWidget@entry=0x21550f0, buttonDown=buttonDown@entry=0x7fee6123c578 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3178
#59 0x00007fee6078e9a2 in QETWidget::translateMouseEvent (this=this@entry=0x21550f0, event=event@entry=0x7ffdffc5beb0) at kernel/qapplication_x11.cpp:4632
#60 0x00007fee6078e24c in QApplication::x11ProcessEvent (this=0x7ffdffc5c3b0, event=event@entry=0x7ffdffc5beb0) at kernel/qapplication_x11.cpp:3626
#61 0x00007fee607b6ba2 in x11EventSourceDispatch (s=0x1ca3cc0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#62 0x00007fee5aea5c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007fee5aea5f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#64 0x00007fee5aea5fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#65 0x00007fee5fd3185e in QEventDispatcherGlib::processEvents (this=0x1c618a0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#66 0x00007fee607b6c66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#67 0x00007fee5fd00d21 in QEventLoop::processEvents (this=this@entry=0x7ffdffc5c290, flags=...) at kernel/qeventloop.cpp:149
#68 0x00007fee5fd01085 in QEventLoop::exec (this=this@entry=0x7ffdffc5c290, flags=...) at kernel/qeventloop.cpp:204
#69 0x00007fee5fd06b09 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#70 0x00007fee6070cc1c in QApplication::exec () at kernel/qapplication.cpp:3828
#71 0x00007fee640d1b5e in kdemain (argc=2, argv=0x7ffdffc5c4f8) at ../../../dolphin/src/main.cpp:93
#72 0x00007fee63cd4a40 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=2, argv=0x7ffdffc5c4f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdffc5c4e8) at libc-start.c:289
#73 0x0000000000400709 in _start ()

Possible duplicates by query: bug 333667.

Reported using DrKonqi
Comment 1 Frank Reininghaus 2015-10-20 21:15:31 UTC 
Thanks for the bug report! Is the crash reproducible for you?
Comment 2 Christoph Feck 2015-12-03 23:26:40 UTC 
Unfortunately, bugs caused by the local event loop in QDrag::exec() are hard to reproduce, in a way that these crashes could never be fixed.
Comment 3 Elvis Angelaccio 2016-12-26 14:51:02 UTC 
Closing for lack of feedback. Please re-open if you can reproduce the crash on newer versions of Dolphin.
Comment 4 Julian Steinmann 2018-04-02 11:16:05 UTC 
Actually closing now. Reopen if you still experience this crash.
Comment 5 Elvis Angelaccio 2018-10-27 11:00:03 UTC 
*** Bug 400329 has been marked as a duplicate of this bug. ***