Application: konsole (15.04.0)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-21-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
moving the mouse over konsole, reaching the left border of the screen (konsole was touching up, down and left border of the screen)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fedc7d08800 (LWP 54279))]

Thread 2 (Thread 0x7fedb21c5700 (LWP 54280)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007fedbfcbccfd in __GI___pthread_mutex_lock (mutex=0x1f348e8) at ../nptl/pthread_mutex_lock.c:80
#2  0x00007fedc1ac0d94 in _xcb_conn_wait (c=c@entry=0x1f348d0, cond=cond@entry=0x1f34910, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:464
#3  0x00007fedc1ac264f in xcb_wait_for_event (c=0x1f348d0) at ../../src/xcb_in.c:622
#4  0x00007fedb4967099 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#5  0x00007fedc4110b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fedbfcba6aa in start_thread (arg=0x7fedb21c5700) at pthread_create.c:333
#7  0x00007fedc77e6eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fedc7d08800 (LWP 54279)):
[KCrash Handler]
#6  poll_for_reply (c=c@entry=0x1f348d0, request=request@entry=7045, reply=reply@entry=0x7ffe4ffff458, error=error@entry=0x7ffe4ffff558) at ../../src/xcb_in.c:422
#7  0x00007fedc1ac2414 in wait_for_reply (c=c@entry=0x1f348d0, request=7045, e=e@entry=0x7ffe4ffff558) at ../../src/xcb_in.c:489
#8  0x00007fedc1ac2512 in xcb_wait_for_reply (c=c@entry=0x1f348d0, request=7045, e=e@entry=0x7ffe4ffff558) at ../../src/xcb_in.c:520
#9  0x00007fedc1f1869f in _XReply (dpy=dpy@entry=0x1f33540, rep=rep@entry=0x7ffe4ffff5d0, extra=extra@entry=0, discard=discard@entry=0) at ../../src/xcb_io.c:602
#10 0x00007fedb44f5f32 in XIQueryDevice (dpy=0x1f33540, deviceid=10, ndevices_return=0x7ffe4ffff654) at ../../src/XIQueryDevice.c:60
#11 0x00007fedb4985209 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#12 0x00007fedb49761f9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#13 0x00007fedb4966938 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#14 0x00007fedb49674bb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#15 0x00007fedc438073a in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fedc4c58b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fedc4c5e000 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fedc434ec2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fedc4350c9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fedc43a7843 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fedbf585c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fedbf585f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fedbf585fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fedc43a7c57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fedc434c3e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fedc435402c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fedc7acb86f in kdemain (argc=1, argv=0x7ffe500000b8) at ../../src/main.cpp:90
#28 0x00007fedc7700a40 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, argv=0x7ffe500000b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe500000a8) at libc-start.c:289
#29 0x0000000000400769 in _start ()

Possible duplicates by query: bug 346265, bug 345691.

Reported using DrKonqi