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List:       kde-bugs-dist
Subject:    [plasma] [Bug 192666] RTM plasmoid crashes when draging tasks (TaskModel::dataUpdated)
From:       Martin Gräßlin <mgraesslin () kde ! org>
Date:       2013-01-14 14:19:25
Message-ID: bug-192666-17878-EZYFRbiB0u () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=192666

Martin Gräßlin <mgraesslin@kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDSINFO                   |UNCONFIRMED
            Version|4.8.0                       |4.9.5
         Resolution|WAITINGFORINFO              |---
     Ever confirmed|1                           |0

--- Comment #20 from Martin Gräßlin <mgraesslin@kde.org> ---
new backtrace from #313214 - reopening as this backtrace has debug symbols

-- Information about the crash:
- What I was doing when the application crashed:
I dragged a task into the list selection area.
- Unusual behaviour I noticed:
The task disappears and after 10 -20 seconds the plasmoid crashes.
- Custom settings of the application:
none i am aware of

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb49977c0 (LWP 1092))]

Thread 4 (Thread 0xaac2eb40 (LWP 1095)):
#0  0xb77fb424 in __kernel_vsyscall ()
#1  0x4de5812c in pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:172
#2  0xb76188bd in QTWTF::TCMalloc_PageHeap::scavengerThread
(this=this@entry=0xb7727560) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#3  0xb76188f0 in QTWTF::TCMalloc_PageHeap::runScavengerThread
(context=0xb7727560) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#4  0x4de54adf in start_thread (arg=0xaac2eb40) at pthread_create.c:309
#5  0x4dd8742e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 3 (Thread 0xa9e2bb40 (LWP 1096)):
#0  ___tls_get_addr (ti=0xb5e76cb8) at dl-tls.c:750
#1  0xb5bf3b62 in get_thread_data () at thread/qthread_unix.cpp:182
#2  QThreadData::current () at thread/qthread_unix.cpp:208
#3  0xb5d3cda0 in postEventSourcePrepare (s=0xa9500da8, timeout=0xa9e2b01c) at
kernel/qeventdispatcher_glib.cpp:256
#4  0x4e1c4b72 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#5  0x4e1c52df in ?? () from /lib/libglib-2.0.so.0
#6  0x4e1c5542 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#7  0xb5d3d4ff in QEventDispatcherGlib::processEvents (this=0xa9500468,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#8  0xb5d0954d in QEventLoop::processEvents (this=this@entry=0xa9e2b1a8,
flags=...) at kernel/qeventloop.cpp:149
#9  0xb5d09849 in QEventLoop::exec (this=0xa9e2b1a8, flags=...) at
kernel/qeventloop.cpp:204
#10 0xb5bf1b3c in QThread::exec (this=0xad90278) at thread/qthread.cpp:542
#11 0xb5ce74ee in QInotifyFileSystemWatcherEngine::run (this=0xad90278) at
io/qfilesystemwatcher_inotify.cpp:256
#12 0xb5bf4fca in QThreadPrivate::start (arg=0xad90278) at
thread/qthread_unix.cpp:338
#13 0x4de54adf in start_thread (arg=0xa9e2bb40) at pthread_create.c:309
#14 0x4dd8742e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 2 (Thread 0xa512cb40 (LWP 1125)):
#0  0xb77fb424 in __kernel_vsyscall ()
#1  0x4de5b18b in read () at ../sysdeps/unix/syscall-template.S:82
#2  0x4e205766 in ?? () from /lib/libglib-2.0.so.0
#3  0x4e1c4ef2 in g_main_context_check () from /lib/libglib-2.0.so.0
#4  0x4e1c5372 in ?? () from /lib/libglib-2.0.so.0
#5  0x4e1c5542 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#6  0xb5d3d4ff in QEventDispatcherGlib::processEvents (this=0xa8c00468,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb5d0954d in QEventLoop::processEvents (this=this@entry=0xa512c1d8,
flags=...) at kernel/qeventloop.cpp:149
#8  0xb5d09849 in QEventLoop::exec (this=0xa512c1d8, flags=...) at
kernel/qeventloop.cpp:204
#9  0xb5bf1b3c in QThread::exec (this=0xac51018) at thread/qthread.cpp:542
#10 0xb719a6ac in Plasma::StorageThread::run (this=0xac51018) at
/usr/src/debug/kdelibs-4.9.5/plasma/private/storagethread.cpp:326
#11 0xb5bf4fca in QThreadPrivate::start (arg=0xac51018) at
thread/qthread_unix.cpp:338
#12 0x4de54adf in start_thread (arg=0xa512cb40) at pthread_create.c:309
#13 0x4dd8742e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb49977c0 (LWP 1092)):
[KCrash Handler]
#7  0x00000001 in ?? ()
#8  0xb1990411 in TaskModel::dataUpdated (this=0xaafbb78, name=..., data=...)
at
/usr/src/debug/kdeplasma-addons-4.9.5/applets/rememberthemilk/taskmodel.cpp:294
#9  0xb5d21c6e in QMetaObject::activate (sender=0xb3361b0, m=0xb733d918,
local_signal_index=0, argv=0xbfbefc24) at kernel/qobject.cpp:3539
#10 0xb71347be in Plasma::DataContainer::dataUpdated
(this=this@entry=0xb3361b0, _t1=..., _t2=...) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/plasma/datacontainer.moc:125
#11 0xb71359cf in Plasma::DataContainer::checkForUpdate (this=0xb3361b0) at
/usr/src/debug/kdelibs-4.9.5/plasma/datacontainer.cpp:295
#12 0xab7b059c in TaskSource::update (this=0xb3361b0) at
/usr/src/debug/kdeplasma-addons-4.9.5/dataengines/rememberthemilk/tasksource.cpp:67
#13 0xab7ad2ba in RtmEngine::updateSourceEvent (this=this@entry=0xaaf6f48,
source=...) at
/usr/src/debug/kdeplasma-addons-4.9.5/dataengines/rememberthemilk/rtmengine.cpp:142
#14 0xab7ae0a7 in RtmEngine::updateTaskSource (this=0xaaf6f48, taskid=...) at
/usr/src/debug/kdeplasma-addons-4.9.5/dataengines/rememberthemilk/rtmengine.cpp:81
#15 0xab7af0fe in TasksSource::taskChanged (this=0xc36ea38, task=0xb3e73e0) at
/usr/src/debug/kdeplasma-addons-4.9.5/dataengines/rememberthemilk/taskssource.cpp:73
#16 0xb5d21c6e in QMetaObject::activate (sender=0xa670f50, m=0xaaf62278,
local_signal_index=4, argv=0xbfbefee8) at kernel/qobject.cpp:3539
#17 0xaaf4ad26 in RTM::Session::taskChanged (this=0xa670f50, _t1=0xb3e73e0) at
/usr/src/debug/kdeplasma-addons-4.9.5/i686-redhat-linux-gnu/libs/rtm/session.moc:189
#18 0xaaf4dda2 in applyTaskChanges (this=0xaa5e698) at
/usr/src/debug/kdeplasma-addons-4.9.5/libs/rtm/session_p.h:158
#19 applyChanges (this=0xaa5e698) at
/usr/src/debug/kdeplasma-addons-4.9.5/libs/rtm/session_p.h:197
#20 RTM::SessionPrivate::smartListReply (this=0xaa5e698, reply=0xb6678f0) at
/usr/src/debug/kdeplasma-addons-4.9.5/libs/rtm/session_p.h:221
#21 0xaaf4c2e2 in qt_static_metacall (_a=0xbfbf01c8, _id=19, _o=0xa670f50,
_c=<optimized out>) at
/usr/src/debug/kdeplasma-addons-4.9.5/i686-redhat-linux-gnu/libs/rtm/session.moc:109
#22 RTM::Session::qt_static_metacall (_o=0xa670f50,
_c=QMetaObject::InvokeMetaMethod, _id=19, _a=0xbfbf01c8) at
/usr/src/debug/kdeplasma-addons-4.9.5/i686-redhat-linux-gnu/libs/rtm/session.moc:84
#23 0xb5d21c6e in QMetaObject::activate (sender=0xb6678f0, m=0xaaf621fc,
local_signal_index=0, argv=0xbfbf01c8) at kernel/qobject.cpp:3539
#24 0xaaf49586 in RTM::Request::replyReceived (this=0xb6678f0, _t1=0xb6678f0)
at
/usr/src/debug/kdeplasma-addons-4.9.5/i686-redhat-linux-gnu/libs/rtm/moc_request.cpp:111
#25 0xaaf546bc in RTM::Request::finished (this=0xb6678f0, job=0xbefa800) at
/usr/src/debug/kdeplasma-addons-4.9.5/libs/rtm/request.cpp:109
#26 0xaaf496c1 in RTM::Request::qt_static_metacall (_o=0xb6678f0,
_c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfbf0348) at
/usr/src/debug/kdeplasma-addons-4.9.5/i686-redhat-linux-gnu/libs/rtm/moc_request.cpp:62
#27 0xb5d21c6e in QMetaObject::activate (sender=0xbefa800, m=0xb61c7eec,
local_signal_index=3, argv=0xbfbf0348) at kernel/qobject.cpp:3539
#28 0xb600fb46 in KJob::result (this=this@entry=0xbefa800,
_t1=_t1@entry=0xbefa800) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kdecore/kjob.moc:207
#29 0xb600fb99 in KJob::emitResult (this=0xbefa800) at
/usr/src/debug/kdelibs-4.9.5/kdecore/jobs/kjob.cpp:318
#30 0xb69d8aeb in KIO::SimpleJob::slotFinished (this=this@entry=0xbefa800) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/job.cpp:494
#31 0xb69e1a5e in KIO::TransferJob::slotFinished (this=0xbefa800) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/job.cpp:1081
#32 0xb69dfc98 in qt_static_metacall (_a=0xbfbf056c, _id=7, _o=0xbefa800,
_c=<optimized out>) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kio/jobclasses.moc:387
#33 KIO::TransferJob::qt_static_metacall (_o=0xbefa800,
_c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfbf056c) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kio/jobclasses.moc:374
#34 0xb5d21c6e in QMetaObject::activate (sender=0xc4cbe20, m=0xb6bb6ec0,
local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3539
#35 0xb6a8e386 in KIO::SlaveInterface::finished (this=this@entry=0xc4cbe20) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kio/slaveinterface.moc:184
#36 0xb6a912b3 in KIO::SlaveInterface::dispatch (this=0xc4cbe20, _cmd=104,
rawdata=...) at /usr/src/debug/kdelibs-4.9.5/kio/kio/slaveinterface.cpp:172
#37 0xb6a8da1b in KIO::SlaveInterface::dispatch (this=0xc4cbe20) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/slaveinterface.cpp:88
#38 0xb6a80238 in KIO::Slave::gotInput (this=this@entry=0xc4cbe20) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/slave.cpp:344
#39 0xb6a80894 in KIO::Slave::qt_static_metacall (_o=0xc4cbe20,
_c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfbf081c) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kio/slave.moc:56
#40 0xb5d21c6e in QMetaObject::activate (sender=0xb26c5a0, m=0xb6bb3b50,
local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3539
#41 0xb69a68c6 in KIO::Connection::readyRead (this=0xb26c5a0) at
/usr/src/debug/kdelibs-4.9.5/i686-redhat-linux-gnu/kio/connection.moc:105
#42 0xb69a6f28 in dequeue (this=<optimized out>) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/connection.cpp:82
#43 KIO::ConnectionPrivate::dequeue (this=0xc4c4aa0) at
/usr/src/debug/kdelibs-4.9.5/kio/kio/connection.cpp:71
#44 0xb5d1cb0b in QMetaCallEvent::placeMetaCall (this=0xb5d1be0,
object=0xb26c5a0) at kernel/qobject.cpp:524
#45 0xb5d21163 in QObject::event (this=0xb26c5a0, e=0xb5d1be0) at
kernel/qobject.cpp:1194
#46 0xb51eea9c in QApplicationPrivate::notify_helper (this=0x9e51580,
receiver=0xb26c5a0, e=0xb5d1be0) at kernel/qapplication.cpp:4562
#47 0xb51f355f in QApplication::notify (this=0xb5d1be0, receiver=0xb26c5a0,
e=0xb5d1be0) at kernel/qapplication.cpp:3944
#48 0xb641b012 in KApplication::notify (this=0x9e41c60, receiver=0xb26c5a0,
event=0xb5d1be0) at
/usr/src/debug/kdelibs-4.9.5/kdeui/kernel/kapplication.cpp:311
#49 0xb5d0aaae in QCoreApplication::notifyInternal (this=0x9e41c60,
receiver=0xb26c5a0, event=0xb5d1be0) at kernel/qcoreapplication.cpp:946
#50 0xb5d0ea55 in sendEvent (event=<optimized out>, receiver=<optimized out>)
at kernel/qcoreapplication.h:231
#51 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0,
data=0x9e01290) at kernel/qcoreapplication.cpp:1570
#52 0xb5d0ecdd in QCoreApplication::sendPostedEvents (receiver=0x0,
event_type=0) at kernel/qcoreapplication.cpp:1463
#53 0xb5d3d355 in sendPostedEvents () at kernel/qcoreapplication.h:236
#54 postEventSourceDispatch (s=0x9e544d0) at
kernel/qeventdispatcher_glib.cpp:279
#55 0x4e1c50bb in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#56 0x4e1c5460 in ?? () from /lib/libglib-2.0.so.0
#57 0x4e1c5542 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#58 0xb5d3d4e2 in QEventDispatcherGlib::processEvents (this=0x9e02000,
flags=...) at kernel/qeventdispatcher_glib.cpp:424
#59 0xb52a10db in QGuiEventDispatcherGlib::processEvents (this=0x9e02000,
flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#60 0xb5d0954d in QEventLoop::processEvents (this=this@entry=0xbfbf1008,
flags=...) at kernel/qeventloop.cpp:149
#61 0xb5d09849 in QEventLoop::exec (this=0xbfbf1008, flags=...) at
kernel/qeventloop.cpp:204
#62 0xb5d0ed8b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#63 0xb51ec915 in QApplication::exec () at kernel/qapplication.cpp:3823
#64 0xb7799656 in kdemain (argc=1, argv=0xbfbf11c4) at
/usr/src/debug/kde-workspace-4.9.5/plasma/desktop/shell/main.cpp:120
#65 0x0804879c in main (argc=1, argv=0xbfbf11c4) at
/usr/src/debug/kde-workspace-4.9.5/i686-redhat-linux-gnu/plasma/desktop/shell/plasma-desktop_dummy.cpp:3

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