[kde] [Bug 341769] New: Crash when unmounting USB stick

Martin Holec martin.holec at martix.cz
Thu Dec 11 11:52:37 GMT 2014 

https://bugs.kde.org/show_bug.cgi?id=341769

            Bug ID: 341769
           Summary: Crash when unmounting USB stick
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: martin.holec at martix.cz

Application: kdeinit5 ()

Qt Version: 5.3.2
Operating System: Linux 3.17.2-1-desktop x86_64
Distribution: "openSUSE 20141208 (Tumbleweed) (x86_64)"

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


1. I clicked on the systray
2. I clicked on the removeable devices systray symbol (to access a USB stick)
3. I clicked on eject/unmount USB stick
the plasma shell crashed

The crash can be reproduced sometimes.

-- Backtrace:
Application: kdeinit5 (kdeinit5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc435e7f780 (LWP 1766))]

Thread 3 (Thread 0x7fc421153700 (LWP 1768)):
#0  0x00007fc4342434ad in poll () from /lib64/libc.so.6
#1  0x00007fc4323cd322 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fc4323cedef in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fc4236a5399 in QXcbEventReader::run (this=0x14f8180) at
qxcbconnection.cpp:1046
#4  0x00007fc4345a6b3f in QThreadPrivate::start (arg=0x14f8180) at
thread/qthread_unix.cpp:345
#5  0x00007fc431b2b3a4 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fc43424ba4d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc3fa8de700 (LWP 2063)):
#0  0x00007fc4342434ad in poll () from /lib64/libc.so.6
#1  0x00007fc426feaa41 in ?? () from /usr/lib64/libpulse.so.0
#2  0x00007fc426fdc2ec in pa_mainloop_poll () from /usr/lib64/libpulse.so.0
#3  0x00007fc426fdc95e in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#4  0x00007fc426fdca10 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#5  0x00007fc426fea9f3 in ?? () from /usr/lib64/libpulse.so.0
#6  0x00007fc426983808 in ?? () from
/usr/lib64/pulseaudio/libpulsecommon-5.0.so
#7  0x00007fc431b2b3a4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fc43424ba4d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc435e7f780 (LWP 1766)):
[KCrash Handler]
#5  size (this=this at entry=0x702f3574712f35d6) at
../../src/corelib/tools/qlist.h:96
#6  indexOf (from=0, t=@0x7fffcfae0f28: 0x19542a0,
this=this at entry=0x702f3574712f35d6) at ../../src/corelib/tools/qlist.h:891
#7  QList<QAction*>::removeAll (this=this at entry=0x702f3574712f35d6,
_t=@0x7fffcfae0f28: 0x19542a0) at ../../src/corelib/tools/qlist.h:799
#8  0x00007fc432b6dc08 in QWidget::removeAction (this=0x1a79640,
action=0x19542a0) at kernel/qwidget.cpp:3032
#9  0x00007fc42053a0be in ?? () from
/usr/lib64/qt5/plugins/platformthemes/KDEPlatformTheme.so
#10 0x00007fc432ca9687 in QMenu::actionEvent (this=0x16cdea0, e=<optimized
out>) at widgets/qmenu.cpp:3051
#11 0x00007fc432b73a0b in QWidget::event (this=this at entry=0x16cdea0,
event=event at entry=0x7fffcfae1350) at kernel/qwidget.cpp:8316
#12 0x00007fc432cae93b in QMenu::event (this=0x16cdea0, e=0x7fffcfae1350) at
widgets/qmenu.cpp:2523
#13 0x00007fc432b38cfc in QApplicationPrivate::notify_helper
(this=this at entry=0x14e2690, receiver=receiver at entry=0x16cdea0,
e=e at entry=0x7fffcfae1350) at kernel/qapplication.cpp:3499
#14 0x00007fc432b3dc36 in QApplication::notify (this=0x7fffcfae1e80,
receiver=0x16cdea0, e=0x7fffcfae1350) at kernel/qapplication.cpp:3282
#15 0x00007fc434784b65 in QCoreApplication::notifyInternal
(this=0x7fffcfae1e80, receiver=receiver at entry=0x16cdea0,
event=event at entry=0x7fffcfae1350) at kernel/qcoreapplication.cpp:935
#16 0x00007fc432b6dc4b in sendEvent (event=0x7fffcfae1350, receiver=0x16cdea0)
at ../../src/corelib/kernel/qcoreapplication.h:237
#17 QWidget::removeAction (this=this at entry=0x16cdea0, action=0x1673760) at
kernel/qwidget.cpp:3034
#18 0x00007fc432ca5b31 in QMenu::clear (this=0x16cdea0) at
widgets/qmenu.cpp:1803
#19 0x00007fc4170999ad in ?? () from /usr/lib64/qt5/plugins/kded_keyboard.so
#20 0x00007fc4170a8d75 in ?? () from /usr/lib64/qt5/plugins/kded_keyboard.so
#21 0x00007fc4347b3aae in QMetaObject::activate (sender=0x1856b80,
signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at
kernel/qobject.cpp:3681
#22 0x00007fc41708ea95 in ?? () from /usr/lib64/qt5/plugins/kded_keyboard.so
#23 0x00007fc41708eb03 in ?? () from /usr/lib64/qt5/plugins/kded_keyboard.so
#24 0x00007fc434781f20 in QAbstractEventDispatcher::filterNativeEvent
(this=<optimized out>, eventType=..., message=message at entry=0x7fc41c003810,
result=result at entry=0x7fffcfae1668) at kernel/qabstracteventdispatcher.cpp:468
#25 0x00007fc4236a4478 in QXcbConnection::handleXcbEvent
(this=this at entry=0x14ecaa0, event=event at entry=0x7fc41c003810) at
qxcbconnection.cpp:826
#26 0x00007fc4236a57cb in QXcbConnection::processXcbEvents (this=0x14ecaa0) at
qxcbconnection.cpp:1244
#27 0x00007fc4347b4746 in QObject::event (this=0x14ecaa0, e=<optimized out>) at
kernel/qobject.cpp:1241
#28 0x00007fc432b38cfc in QApplicationPrivate::notify_helper
(this=this at entry=0x14e2690, receiver=receiver at entry=0x14ecaa0,
e=e at entry=0x7fc41c0038c0) at kernel/qapplication.cpp:3499
#29 0x00007fc432b3dc36 in QApplication::notify (this=0x7fffcfae1e80,
receiver=0x14ecaa0, e=0x7fc41c0038c0) at kernel/qapplication.cpp:3282
#30 0x00007fc434784b65 in QCoreApplication::notifyInternal
(this=0x7fffcfae1e80, receiver=0x14ecaa0, event=event at entry=0x7fc41c0038c0) at
kernel/qcoreapplication.cpp:935
#31 0x00007fc4347869b7 in sendEvent (event=0x7fc41c0038c0, receiver=<optimized
out>) at kernel/qcoreapplication.h:237
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x14abfc0) at
kernel/qcoreapplication.cpp:1539
#33 0x00007fc434786fe8 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1397
#34 0x00007fc4347dc3f3 in postEventSourceDispatch (s=0x15258f0) at
kernel/qeventdispatcher_glib.cpp:279
#35 0x00007fc430e10a04 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#36 0x00007fc430e10c48 in ?? () from /usr/lib64/libglib-2.0.so.0
#37 0x00007fc430e10cec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#38 0x00007fc4347db86c in QEventDispatcherGlib::processEvents (this=0x1515f30,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#39 0x00007fc434782a7b in QEventLoop::exec (this=this at entry=0x7fffcfae1db0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#40 0x00007fc43478a0d6 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1188
#41 0x00007fc423934baa in kdemain () from /usr/lib64/libkdeinit5_kded5.so
#42 0x0000000000408db1 in ?? ()
#43 0x0000000000405c3e in main ()

Reported using DrKonqi

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