Bug 361934

Application: konsole (15.08.0)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-35-generic x86_64
Distribution: Ubuntu 15.10

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

i just switched between windows with Alt+Tab (was multiple fast switches)

-- 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 0x7ff543961840 (LWP 6379))]

Thread 2 (Thread 0x7ff540ae7700 (LWP 6380)):
#0  0x00007ff55637688d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff54eef5bd2 in poll (__timeout=-1, __nfds=1, __fds=0x7ff540ae6c80) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x25bd970, cond=cond@entry=0x25bd9b0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x00007ff54eef774f in xcb_wait_for_event (c=0x25bd970) at ../../src/xcb_in.c:623
#4  0x00007ff54328ba39 in QXcbEventReader::run (this=0x25cb250) at qxcbconnection.cpp:1105
#5  0x00007ff552d852be in QThreadPrivate::start (arg=0x25cb250) at thread/qthread_unix.cpp:337
#6  0x00007ff54e8c96aa in start_thread (arg=0x7ff540ae7700) at pthread_create.c:333
#7  0x00007ff556381e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff543961840 (LWP 6379)):
[KCrash Handler]
#6  poll_for_reply (c=c@entry=0x25bd970, request=request@entry=11889, reply=reply@entry=0x7ffdf5514898, error=error@entry=0x7ffdf5514990) at ../../src/xcb_in.c:423
#7  0x00007ff54eef74f4 in wait_for_reply (c=c@entry=0x25bd970, request=11889, e=e@entry=0x7ffdf5514990) at ../../src/xcb_in.c:490
#8  0x00007ff54eef75f1 in xcb_wait_for_reply (c=c@entry=0x25bd970, request=11889, e=e@entry=0x7ffdf5514990) at ../../src/xcb_in.c:521
#9  0x00007ff550457a47 in _XReply (dpy=0x25bc5e0, rep=0x7ffdf5514a10, extra=0, discard=0) at ../../src/xcb_io.c:602
#10 0x00007ff542e20f32 in XIQueryDevice () from /usr/lib/x86_64-linux-gnu/libXi.so.6
#11 0x00007ff5432ac1be in QXcbConnection::handleEnterEvent (this=0x25bc220) at qxcbconnection_xi2.cpp:699
#12 0x00007ff54329cc19 in QXcbWindow::handleEnterNotifyEvent (this=0x27aecd0, event=0x7ff53c0033a0) at qxcbwindow.cpp:2102
#13 0x00007ff54328dc53 in QXcbConnection::handleXcbEvent (this=this@entry=0x25bc220, event=event@entry=0x7ff53c0033a0) at qxcbconnection.cpp:895
#14 0x00007ff54328e3b3 in QXcbConnection::processXcbEvents (this=0x25bc220) at qxcbconnection.cpp:1303
#15 0x00007ff552f96651 in QObject::event (this=0x25bc220, e=<optimized out>) at kernel/qobject.cpp:1245
#16 0x00007ff553832b8c in QApplicationPrivate::notify_helper (this=this@entry=0x259ce20, receiver=receiver@entry=0x25bc220, e=e@entry=0x7ff53c0034f0) at kernel/qapplication.cpp:3720
#17 0x00007ff553838230 in QApplication::notify (this=0x7ffdf55153d0, receiver=0x25bc220, e=0x7ff53c0034f0) at kernel/qapplication.cpp:3503
#18 0x00007ff552f64f1b in QCoreApplication::notifyInternal (this=0x7ffdf55153d0, receiver=0x25bc220, event=event@entry=0x7ff53c0034f0) at kernel/qcoreapplication.cpp:935
#19 0x00007ff552f67057 in QCoreApplication::sendEvent (event=0x7ff53c0034f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x254da10) at kernel/qcoreapplication.cpp:1552
#21 0x00007ff552f67588 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#22 0x00007ff552fbbe73 in postEventSourceDispatch (s=0x25efbf0) at kernel/qeventdispatcher_glib.cpp:271
#23 0x00007ff54e192ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff54e193250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ff54e1932fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007ff552fbc27f in QEventDispatcherGlib::processEvents (this=0x25ffa00, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#27 0x00007ff552f6275a in QEventLoop::exec (this=this@entry=0x7ffdf5515290, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#28 0x00007ff552f6a2cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#29 0x00007ff55327f00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#30 0x00007ff55382f025 in QApplication::exec () at kernel/qapplication.cpp:2956
#31 0x00007ff556666bdb in kdemain (argc=1, argv=0x7ffdf5515518) at ../../src/main.cpp:113
#32 0x00007ff55629ba40 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, argv=0x7ffdf5515518, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdf5515508) at libc-start.c:289
#33 0x0000000000400769 in _start ()

Possible duplicates by query: bug 360207, bug 360010, bug 354589, bug 353652, bug 349707.

Reported using DrKonqi