Bug 266383

this appears like it might be a bug in Solid, where the shared data behind a Solid::Device object (or the object itself) is being deleted behind our backs in Solid. Kevin: can you comment on this?

Hm, shouldn't be... said shared data is not destroyed by libsolid internally. It's destroyed only when there's no Solid::Device instance left (because of QExplicitlySharedDataPointer) but that's it.

*** Bug 268008 has been marked as a duplicate of this bug. ***

*** Bug 268995 has been marked as a duplicate of this bug. ***

*** Bug 268955 has been marked as a duplicate of this bug. ***

*** Bug 269449 has been marked as a duplicate of this bug. ***

*** Bug 269632 has been marked as a duplicate of this bug. ***

For me too Plasma crashed when I mounted my USB driver (1 GB). When I connected my USB to the pc, the screen went black and after few second appeared the crash windows and plasma restarted by itself!

I use Kubuntu 10.10 64 bit kernel 2.6.35-28 and Kde 4.6.2

[Comment from a bug report cleaner]
Note: bug 271566 seems to have a similar backtrace, it may be related.

*** Bug 282678 has been marked as a duplicate of this bug. ***

*** Bug 283263 has been marked as a duplicate of this bug. ***

*** Bug 283797 has been marked as a duplicate of this bug. ***

*** Bug 284045 has been marked as a duplicate of this bug. ***

*** Bug 284237 has been marked as a duplicate of this bug. ***

*** Bug 286237 has been marked as a duplicate of this bug. ***

*** Bug 286136 has been marked as a duplicate of this bug. ***

reproduced today in kde 4.7.3 when i removed the battery of my laptop.

*** Bug 272350 has been marked as a duplicate of this bug. ***

*** Bug 288398 has been marked as a duplicate of this bug. ***

*** Bug 268994 has been marked as a duplicate of this bug. ***

*** Bug 281300 has been marked as a duplicate of this bug. ***

Created attachment 67026 [details]
New crash information added by DrKonqi

plasma-desktop (0.4) on KDE Platform 4.7.3 (4.7.3) using Qt 4.7.4

____________________

-- Backtrace (Reduced):
#7  0x00007fa7fbdf9ee1 in ~QHashNode (this=0x1961800, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:216
#8  deleteNode2 (node=0x1961800) at /usr/include/qt4/QtCore/qhash.h:519
#9  deleteNode (node=0x1961800, this=0x159f138) at /usr/include/qt4/QtCore/qhash.h:507
#10 QHash<QString, Solid::Device>::remove (this=0x159f138, akey=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:795
#11 0x00007fa7fbdfa03c in remove (akey=..., this=0x159f138) at /usr/include/qt4/QtCore/qhash.h:784

Confirmed by several duplicates. Here, plasma-desktop and knotify4 crash whenever I remove the battery afteer charging it. The bug is not related to HAL (it's not installed), so reassigning.

*** Bug 290426 has been marked as a duplicate of this bug. ***

*** Bug 289643 has been marked as a duplicate of this bug. ***

*** Bug 273075 has been marked as a duplicate of this bug. ***

*** Bug 290475 has been marked as a duplicate of this bug. ***

*** Bug 291066 has been marked as a duplicate of this bug. ***

*** Bug 291844 has been marked as a duplicate of this bug. ***

*** Bug 293244 has been marked as a duplicate of this bug. ***

*** Bug 293971 has been marked as a duplicate of this bug. ***

*** Bug 294036 has been marked as a duplicate of this bug. ***

*** Bug 294317 has been marked as a duplicate of this bug. ***

*** Bug 294357 has been marked as a duplicate of this bug. ***

*** Bug 297083 has been marked as a duplicate of this bug. ***

This crash occurs systematically here every time I run a script that quickly creates and removes disk partitions.

(In reply to comment #36)
> This crash occurs systematically here every time I run a script that quickly
> creates and removes disk partitions.
Can you share that script? thanks !

*** Bug 298579 has been marked as a duplicate of this bug. ***

(In reply to comment #37)
> (In reply to comment #36)
> > This crash occurs systematically here every time I run a script that quickly
> > creates and removes disk partitions.
> Can you share that script? thanks !

Sorry, but that script only works on a client-server setup equipped with InfiniBand HCA's. The script itself can be found here: http://marc.info/?l=linux-scsi&m=133261665628155. You'll have to apply that patch on top of this kernel tree: http://github.com/bvanassche/linux/tree/srp-ha. Please let me know if you need more information.

Uh that is too much work for me to reproduce this bug :/

Can anybody else provide me a way of reproducing this bug? Thanks !
> (In reply to comment #37)
> > (In reply to comment #36)
> > > This crash occurs systematically here every time I run a script that quickly
> > > creates and removes disk partitions.
> > Can you share that script? thanks !
> 
> Sorry, but that script only works on a client-server setup equipped with
> InfiniBand HCA's. The script itself can be found here:
> http://marc.info/?l=linux-scsi&m=133261665628155. You'll have to apply that
> patch on top of this kernel tree:
> http://github.com/bvanassche/linux/tree/srp-ha. Please let me know if you
> need more information.

I can still reproduce daily, see comment #23.

You say "After charging it" what does it mean exactly? 

Tried to unplug mine and nothing crashed :/
> I can still reproduce daily, see comment #23.

I usually use my system plugged, without the battery. When I go somewhere else, I insert a full battery and remove the plug. Then when I later come back, I plug the cord, and when the battery is fully loaded again, I remove it. At that point, knotify4 and plasma-desktop crash with the solid backtrace.

Can you provide the output of "solid-hardware listen" ? stop it when the first crash appear.
> I usually use my system plugged, without the battery. When I go somewhere
> else, I insert a full battery and remove the plug. Then when I later come
> back, I plug the cord, and when the battery is fully loaded again, I remove
> it. At that point, knotify4 and plasma-desktop crash with the solid
> backtrace.

Output is as follows. Note that I really only removed the battery once, but all three messages appeared at the same time, together with the crash.

Listening to add/remove events: 
Device Removed:
udi = '/org/freedesktop/UPower/devices/battery_CMB1'
Device Added:
udi = '/org/freedesktop/UPower/devices/battery_CMB1'
Device Removed:
udi = '/org/freedesktop/UPower/devices/battery_CMB1'

Nothing relevant I'm afraid (I have the same behavior here but it doesn't crashes).
Did solid-hardware crashed?

Can you run whatever process crashes with valgrind ? 

Thanks !

pepo@duo:/local/Downloads> valgrind knotify4 --nofork
==4252== Memcheck, a memory error detector
==4252== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==4252== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==4252== Command: knotify4 --nofork
==4252== 
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
==4252== Conditional jump or move depends on uninitialised value(s)
==4252==    at 0x4A8F0D7: QFontDef::operator==(QFontDef const&) const (qfont_p.h:119)
==4252==    by 0x4A8AD52: QFont::operator==(QFont const&) const (qfont.cpp:1784)
==4252==    by 0x4A8B4D1: QFont::resolve(QFont const&) const (qfont.cpp:1890)
==4252==    by 0x4860F3D: QWidgetPrivate::resolveFont() (qwidget.cpp:4905)
==4252==    by 0x486AEF8: QWidget::event(QEvent*) (qwidget.cpp:8591)
==4252==    by 0x480A823: QApplicationPrivate::notify_helper(QObject*, QEvent*) (qapplication.cpp:4551)
==4252==    by 0x480A50C: QApplication::notify(QObject*, QEvent*) (qapplication.cpp:4516)
==4252==    by 0x423F6B5: KApplication::notify(QObject*, QEvent*) (kapplication.cpp:311)
==4252==    by 0x592D059: QCoreApplication::notifyInternal(QObject*, QEvent*) (qcoreapplication.cpp:915)
==4252==    by 0x47FC422: QCoreApplication::sendEvent(QObject*, QEvent*) (in /local/Qt4/qt-4.8/lib/libQtGui.so.4.8.2)
==4252==    by 0x480407E: QApplication::setFont(QFont const&, char const*) (qapplication.cpp:2056)
==4252==    by 0x42728DF: KGlobalSettings::Private::kdisplaySetFont() (kglobalsettings.cpp:1066)
==4252== 
==4252== Conditional jump or move depends on uninitialised value(s)
==4252==    at 0x4A8F0D7: QFontDef::operator==(QFontDef const&) const (qfont_p.h:119)
==4252==    by 0x4A8AD52: QFont::operator==(QFont const&) const (qfont.cpp:1784)
==4252==    by 0x4873D42: QWidgetPrivate::setFont_helper(QFont const&) (qwidget_p.h:434)
==4252==    by 0x4860F52: QWidgetPrivate::resolveFont() (qwidget.cpp:4906)
==4252==    by 0x486AEF8: QWidget::event(QEvent*) (qwidget.cpp:8591)
==4252==    by 0x480A823: QApplicationPrivate::notify_helper(QObject*, QEvent*) (qapplication.cpp:4551)
==4252==    by 0x480A50C: QApplication::notify(QObject*, QEvent*) (qapplication.cpp:4516)
==4252==    by 0x423F6B5: KApplication::notify(QObject*, QEvent*) (kapplication.cpp:311)
==4252==    by 0x592D059: QCoreApplication::notifyInternal(QObject*, QEvent*) (qcoreapplication.cpp:915)
==4252==    by 0x47FC422: QCoreApplication::sendEvent(QObject*, QEvent*) (in /local/Qt4/qt-4.8/lib/libQtGui.so.4.8.2)
==4252==    by 0x480407E: QApplication::setFont(QFont const&, char const*) (qapplication.cpp:2056)
==4252==    by 0x42728DF: KGlobalSettings::Private::kdisplaySetFont() (kglobalsettings.cpp:1066)
==4252== 
ASSERT: "dev->backendObject()!=0" in file /local/git/KDE/libs/kdelibs/solid/solid/devicemanager.cpp, line 201
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = knotify4 path = /local/KDE4/trunk/bin pid = 4252
KCrash: Arguments: /local/KDE4/trunk/bin/knotify4 --nocrashhandler --nofork 
KCrash: Attempting to start /local/kde4/lib/kde4/libexec/drkonqi from kdeinit
sock_file=/home/pepo/.kde/socket-duo/kdeinit4__0

[1]+  Angehalten              valgrind knotify4 --nofork
pepo@duo:/local/Downloads> QSocketNotifier: Invalid socket 10 and type 'Read', disabling...
==4252== Thread 2:
==4252== Invalid read of size 2
==4252==    at 0x5963FB9: socketNotifierSourceCheck(_GSource*) (qeventdispatcher_glib.cpp:95)
==4252==    by 0x65B051A: g_main_context_check (gmain.c:3000)
==4252==    by 0x65B0AF1: g_main_context_iterate.isra.21 (gmain.c:3120)
==4252==    by 0x65B0CC0: g_main_context_iteration (gmain.c:3184)
==4252==    by 0x592A708: QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:149)
==4252==    by 0x592A880: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:204)
==4252==    by 0x5805D5E: QThread::exec() (qthread.cpp:501)
==4252==    by 0x5907F8D: QInotifyFileSystemWatcherEngine::run() (qfilesystemwatcher_inotify.cpp:248)
==4252==    by 0x5808578: QThreadPrivate::start(void*) (qthread_unix.cpp:307)
==4252==    by 0x5B0AE05: start_thread (pthread_create.c:305)
==4252==    by 0x5D410ED: clone (clone.S:133)
==4252==  Address 0xab5ddc6 is 6 bytes inside a block of size 12 free'd
==4252==    at 0x402A123: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==4252==    by 0x5950F7B: QSocketNotifier::setEnabled(bool) (qsocketnotifier.cpp:298)
==4252==    by 0x5963FB5: socketNotifierSourceCheck(_GSource*) (qeventdispatcher_glib.cpp:92)
==4252==    by 0x65B051A: g_main_context_check (gmain.c:3000)
==4252==    by 0x65B0AF1: g_main_context_iterate.isra.21 (gmain.c:3120)
==4252==    by 0x65B0CC0: g_main_context_iteration (gmain.c:3184)
==4252==    by 0x592A708: QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:149)
==4252==    by 0x592A880: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:204)
==4252==    by 0x5805D5E: QThread::exec() (qthread.cpp:501)
==4252==    by 0x5907F8D: QInotifyFileSystemWatcherEngine::run() (qfilesystemwatcher_inotify.cpp:248)
==4252==    by 0x5808578: QThreadPrivate::start(void*) (qthread_unix.cpp:307)
==4252==    by 0x5B0AE05: start_thread (pthread_create.c:305)
==4252== 
==4252== Invalid read of size 2
==4252==    at 0x5963FC0: socketNotifierSourceCheck(_GSource*) (qeventdispatcher_glib.cpp:95)
==4252==    by 0x65B051A: g_main_context_check (gmain.c:3000)
==4252==    by 0x65B0AF1: g_main_context_iterate.isra.21 (gmain.c:3120)
==4252==    by 0x65B0CC0: g_main_context_iteration (gmain.c:3184)
==4252==    by 0x592A708: QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:149)
==4252==    by 0x592A880: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:204)
==4252==    by 0x5805D5E: QThread::exec() (qthread.cpp:501)
==4252==    by 0x5907F8D: QInotifyFileSystemWatcherEngine::run() (qfilesystemwatcher_inotify.cpp:248)
==4252==    by 0x5808578: QThreadPrivate::start(void*) (qthread_unix.cpp:307)
==4252==    by 0x5B0AE05: start_thread (pthread_create.c:305)
==4252==    by 0x5D410ED: clone (clone.S:133)
==4252==  Address 0xab5ddc4 is 4 bytes inside a block of size 12 free'd
==4252==    at 0x402A123: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==4252==    by 0x5950F7B: QSocketNotifier::setEnabled(bool) (qsocketnotifier.cpp:298)
==4252==    by 0x5963FB5: socketNotifierSourceCheck(_GSource*) (qeventdispatcher_glib.cpp:92)
==4252==    by 0x65B051A: g_main_context_check (gmain.c:3000)
==4252==    by 0x65B0AF1: g_main_context_iterate.isra.21 (gmain.c:3120)
==4252==    by 0x65B0CC0: g_main_context_iteration (gmain.c:3184)
==4252==    by 0x592A708: QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:149)
==4252==    by 0x592A880: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (qeventloop.cpp:204)
==4252==    by 0x5805D5E: QThread::exec() (qthread.cpp:501)
==4252==    by 0x5907F8D: QInotifyFileSystemWatcherEngine::run() (qfilesystemwatcher_inotify.cpp:248)
==4252==    by 0x5808578: QThreadPrivate::start(void*) (qthread_unix.cpp:307)
==4252==    by 0x5B0AE05: start_thread (pthread_create.c:305)
==4252== 
==4252== 
==4252== HEAP SUMMARY:
==4252==     in use at exit: 1,045,040 bytes in 19,500 blocks
==4252==   total heap usage: 116,521 allocs, 97,021 frees, 35,298,309 bytes allocated
==4252== 
==4252== LEAK SUMMARY:
==4252==    definitely lost: 1,408 bytes in 11 blocks
==4252==    indirectly lost: 220 bytes in 11 blocks
==4252==      possibly lost: 332,994 bytes in 10,465 blocks
==4252==    still reachable: 710,418 bytes in 9,013 blocks
==4252==         suppressed: 0 bytes in 0 blocks
==4252== Rerun with --leak-check=full to see details of leaked memory
==4252== 
==4252== For counts of detected and suppressed errors, rerun with: -v
==4252== Use --track-origins=yes to see where uninitialised values come from
==4252== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)

[1]+  Exit 253                valgrind knotify4 --nofork
pepo@duo:/local/Downloads>

Application: KNotify (knotify4), signal: Aborted
[Current thread is 1 (Thread 0xb4b5e740 (LWP 4378))]

Thread 2 (Thread 0xb1a32b40 (LWP 4379)):
#0  0xb779f424 in __kernel_vsyscall ()
#1  0xb5a970a0 in __GI___poll (fds=0x8b91830, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb51a628b in g_poll (fds=0x8b91830, nfds=1, timeout=-1) at gpoll.c:132
#3  0xb5197b60 in g_main_context_poll (n_fds=1, fds=0x8b91830, timeout=<optimized out>, context=0x8b8f8f0, priority=<optimized out>) at gmain.c:3417
#4  g_main_context_iterate (context=0x8b8f8f0, block=1, dispatch=1, self=) at gmain.c:3118
#5  0xb5197cc1 in g_main_context_iteration (context=0x8b8f8f0, may_block=1) at gmain.c:3184
#6  0xb5ea2cd2 in QEventDispatcherGlib::processEvents (this=0x8b66a78, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#7  0xb5e68709 in QEventLoop::processEvents (this=0xb1a32238, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:149
#8  0xb5e68881 in QEventLoop::exec (this=0xb1a32238, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:204
#9  0xb5d43d5f in QThread::exec (this=0x8b66500) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread.cpp:501
#10 0xb5e45f8e in QInotifyFileSystemWatcherEngine::run (this=0x8b66500) at /local/git/Qt/frameworks/qt/src/corelib/io/qfilesystemwatcher_inotify.cpp:248
#11 0xb5d46579 in QThreadPrivate::start (arg=0x8b66500) at /local/git/Qt/frameworks/qt/src/corelib/thread/qthread_unix.cpp:307
#12 0xb5c98e06 in start_thread (arg=0xb1a32b40) at pthread_create.c:305
#13 0xb5aa20ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb4b5e740 (LWP 4378)):
[KCrash Handler]
#7  0xb779f424 in __kernel_vsyscall ()
#8  0xb59e425f in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#9  0xb59e5bc5 in __GI_abort () at abort.c:91
#10 0xb5d39ab9 in qt_message_output (msgType=QtFatalMsg, buf=0x8bbc258 "ASSERT: \"dev->backendObject()!=0\" in file /local/git/KDE/libs/kdelibs/solid/solid/devicemanager.cpp, line 201") at /local/git/Qt/frameworks/qt/src/corelib/global/qglobal.cpp:2260
#11 0xb5d39c2a in qt_message (msgType=QtFatalMsg, msg=0xb5ee6584 "ASSERT: \"%s\" in file %s, line %d", ap=0xbfc678c4 "M\250\035\267\064\246\035\267\311") at /local/git/Qt/frameworks/qt/src/corelib/global/qglobal.cpp:2306
#12 0xb5d3a0c0 in qFatal (msg=0xb5ee6584 "ASSERT: \"%s\" in file %s, line %d") at /local/git/Qt/frameworks/qt/src/corelib/global/qglobal.cpp:2489
#13 0xb5d39666 in qt_assert (assertion=0xb71da84d "dev->backendObject()!=0", file=0xb71da634 "/local/git/KDE/libs/kdelibs/solid/solid/devicemanager.cpp", line=201) at /local/git/Qt/frameworks/qt/src/corelib/global/qglobal.cpp:2007
#14 0xb71601ba in Solid::DeviceManagerPrivate::_k_deviceRemoved (this=0x8b65ee0, udi=...) at /local/git/KDE/libs/kdelibs/solid/solid/devicemanager.cpp:201
#15 0xb7160977 in Solid::DeviceManagerPrivate::qt_static_metacall (_o=0x8b65ee0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfc67a18) at /local/build/KDE/libs/kdelibs/solid/solid/devicemanager_p.moc:55
#16 0xb5e86dc2 in QMetaObject::activate (sender=0x8b66c90, m=0xb7224488, local_signal_index=1, argv=0xbfc67a18) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qobject.cpp:3547
#17 0xb7178522 in Solid::Ifaces::DeviceManager::deviceRemoved (this=0x8b66c90, _t1=...) at /local/build/KDE/libs/kdelibs/solid/solid/ifaces/devicemanager.moc:108
#18 0xb71bebe2 in Solid::Backends::UPower::UPowerManager::slotDeviceRemoved (this=0x8b66c90, opath=...) at /local/git/KDE/libs/kdelibs/solid/solid/backends/upower/upowermanager.cpp:164
#19 0xb71bec88 in Solid::Backends::UPower::UPowerManager::qt_static_metacall (_o=0x8b66c90, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfc67c34) at /local/build/KDE/libs/kdelibs/solid/solid/backends/upower/upowermanager.moc:53
#20 0xb5e86dc2 in QMetaObject::activate (sender=0x8b66c9c, m=0x8ba2e40, local_signal_index=4, argv=0xbfc67c34) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qobject.cpp:3547
#21 0xb605bcb2 in QDBusInterfacePrivate::metacall (this=0x8b95088, c=QMetaObject::InvokeMetaMethod, id=4, argv=0xbfc67c34) at /local/git/Qt/frameworks/qt/src/dbus/qdbusinterface.cpp:278
#22 0xb605bc0e in QDBusInterface::qt_metacall (this=0x8b66c9c, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfc67c34) at /local/git/Qt/frameworks/qt/src/dbus/qdbusinterface.cpp:265
#23 0xb6041e56 in QDBusConnectionPrivate::deliverCall (this=0x8b67048, object=0x8b66c9c, msg=..., metaTypes=..., slotIdx=9) at /local/git/Qt/frameworks/qt/src/dbus/qdbusintegrator.cpp:947
#24 0xb604cdb4 in QDBusCallDeliveryEvent::placeMetaCall (this=0x8bbbfe0, object=0x8b66c9c) at /local/git/Qt/frameworks/qt/src/dbus/qdbusintegrator_p.h:103
#25 0xb5e82252 in QObject::event (this=0x8b66c9c, e=0x8bbbfe0) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qobject.cpp:1195
#26 0xb65c1824 in QApplicationPrivate::notify_helper (this=0x8aa13f0, receiver=0x8b66c9c, e=0x8bbbfe0) at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:4551
#27 0xb65bf0a8 in QApplication::notify (this=0xbfc68658, receiver=0x8b66c9c, e=0x8bbbfe0) at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:3933
#28 0xb74b66b6 in KApplication::notify (this=0xbfc68658, receiver=0x8b66c9c, event=0x8bbbfe0) at /local/git/KDE/libs/kdelibs/kdeui/kernel/kapplication.cpp:311
#29 0xb5e6b05a in QCoreApplication::notifyInternal (this=0xbfc68658, receiver=0x8b66c9c, event=0x8bbbfe0) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:915
#30 0xb5e6e8d3 in QCoreApplication::sendEvent (receiver=0x8b66c9c, event=0x8bbbfe0) at ../../include/QtCore/../../../../git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.h:231
#31 0xb5e6bf88 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8a76d48) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:1539
#32 0xb5e6bc41 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:1432
#33 0xb5ea3396 in QCoreApplication::sendPostedEvents () at ../../include/QtCore/../../../../git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.h:236
#34 0xb5ea251f in postEventSourceDispatch (s=0x8aa1230) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:279
#35 0xb5197761 in g_main_dispatch (context=0x8aa1300) at gmain.c:2515
#36 g_main_context_dispatch (context=0x8aa1300) at gmain.c:3052
#37 0xb5197be0 in g_main_context_iterate (context=0x8aa1300, block=1, dispatch=1, self=) at gmain.c:3123
#38 0xb5197cc1 in g_main_context_iteration (context=0x8aa1300, may_block=1) at gmain.c:3184
#39 0xb5ea2cb2 in QEventDispatcherGlib::processEvents (this=0x8a97ab8, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:424
#40 0xb668cef6 in QGuiEventDispatcherGlib::processEvents (this=0x8a97ab8, flags=...) at /local/git/Qt/frameworks/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#41 0xb5e68709 in QEventLoop::processEvents (this=0xbfc685cc, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:149
#42 0xb5e68881 in QEventLoop::exec (this=0xbfc685cc, flags=...) at /local/git/Qt/frameworks/qt/src/corelib/kernel/qeventloop.cpp:204
#43 0xb5e6b6f0 in QCoreApplication::exec () at /local/git/Qt/frameworks/qt/src/corelib/kernel/qcoreapplication.cpp:1187
#44 0xb65bed3a in QApplication::exec () at /local/git/Qt/frameworks/qt/src/gui/kernel/qapplication.cpp:3812
#45 0x08050903 in main (argc=1, argv=0xbfc687c4) at /local/git/KDE/base/kde-runtime/knotify/main.cpp:73

*** Bug 299188 has been marked as a duplicate of this bug. ***

*** Bug 301508 has been marked as a duplicate of this bug. ***

*** Bug 302694 has been marked as a duplicate of this bug. ***

*** Bug 303191 has been marked as a duplicate of this bug. ***

*** Bug 303640 has been marked as a duplicate of this bug. ***

*** Bug 303640 has been marked as a duplicate of this bug. ***

*** Bug 278274 has been marked as a duplicate of this bug. ***

*** Bug 312479 has been marked as a duplicate of this bug. ***

I reported the last bug (312479). For me it has something to do with sleep. The crash occurs each time after resuming from sleep. However if I first disable bluetooth and then go to sleep/resume, there is no crash.... I created a little script to disable bluetooth automatically before going to sleep and the crashes stop.

*** This bug has been marked as a duplicate of bug 314544 ***

(In reply to comment #58)
> *** This bug has been marked as a duplicate of bug 314544 ***

Since this bug is way older and contains all the votes, shouldn't #314544 be the duplicate?

This bug is not a duplicate of bug 314544, but bug 251356.

*** This bug has been marked as a duplicate of bug 251356 ***