Bug 337408

Application: plasma-desktop (4.11.10)
KDE Platform Version: 4.12.5
Qt Version: 4.8.6
Operating System: Linux 3.15.3-200.fc20.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

Adding a desktop pager to the default panel. I think I actually added several (borderline spammed it), because I could not see any visual indication that it had been added. I kept trying to drop one on the same spot. after the app resumed I noticed the mouse-over behavior and deleted the extra ones. I repeat, no visual or audio cue of a successful operation. On success, a blank invisible square?

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f04d5f238c0 (LWP 4485))]

Thread 13 (Thread 0x7f04be134700 (LWP 4491)):
#0  g_source_iter_clear (iter=iter@entry=0x7f04be133b00) at gmain.c:930
#1  0x000000341c248fa0 in g_main_context_check (context=context@entry=0x7f04b80009a0, max_priority=2147483647, fds=fds@entry=0x7f04b8002bb0, n_fds=n_fds@entry=1) at gmain.c:3622
#2  0x000000341c249533 in g_main_context_iterate (context=context@entry=0x7f04b80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3710
#3  0x000000341c2496dc in g_main_context_iteration (context=0x7f04b80009a0, may_block=1) at gmain.c:3774
#4  0x00000034243b5a7e in QEventDispatcherGlib::processEvents (this=0x7f04b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x000000342438595f in QEventLoop::processEvents (this=this@entry=0x7f04be133cc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003424385cad in QEventLoop::exec (this=this@entry=0x7f04be133cc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003424279e8f in QThread::exec (this=this@entry=0x15b2b20) at thread/qthread.cpp:538
#8  0x00000034243662e3 in QInotifyFileSystemWatcherEngine::run (this=0x15b2b20) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x000000342427c6bf in QThreadPrivate::start (arg=0x15b2b20) at thread/qthread_unix.cpp:349
#10 0x000000341a607f33 in start_thread (arg=0x7f04be134700) at pthread_create.c:309
#11 0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7f04ab558700 (LWP 4582)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000003433b8ef2b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3433e8df00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x0000003433b8ef69 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x000000341a607f33 in start_thread (arg=0x7f04ab558700) at pthread_create.c:309
#4  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7f041f8e3700 (LWP 6154)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x43bbb30) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x43bbb30, previous=0x7d7aae0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x43bbb30) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#6  0x000000342427c6bf in QThreadPrivate::start (arg=0x43bbb30) at thread/qthread_unix.cpp:349
#7  0x000000341a607f33 in start_thread (arg=0x7f041f8e3700) at pthread_create.c:309
#8  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7f04211e9700 (LWP 6155)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x44c1e20) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x44c1e20, previous=0x1916030) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x44c1e20) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#6  0x000000342427c6bf in QThreadPrivate::start (arg=0x44c1e20) at thread/qthread_unix.cpp:349
#7  0x000000341a607f33 in start_thread (arg=0x7f04211e9700) at pthread_create.c:309
#8  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7f04209e8700 (LWP 6156)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x42e1650) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x42e1650, previous=0x7d6a840) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x42e1650) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#6  0x000000342427c6bf in QThreadPrivate::start (arg=0x42e1650) at thread/qthread_unix.cpp:349
#7  0x000000341a607f33 in start_thread (arg=0x7f04209e8700) at pthread_create.c:309
#8  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7f041e69b700 (LWP 6157)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x44fbf10) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x44fbf10, previous=0x0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0d81c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x44fbf10, previous=0x54a1360) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x44fbf10) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#7  0x000000342427c6bf in QThreadPrivate::start (arg=0x44fbf10) at thread/qthread_unix.cpp:349
#8  0x000000341a607f33 in start_thread (arg=0x7f041e69b700) at pthread_create.c:309
#9  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7f041d8bf700 (LWP 6158)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x3827190) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x3827190, previous=0x0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0d81c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x3827190, previous=0x2e9fc90) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x3827190) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#7  0x000000342427c6bf in QThreadPrivate::start (arg=0x3827190) at thread/qthread_unix.cpp:349
#8  0x000000341a607f33 in start_thread (arg=0x7f041d8bf700) at pthread_create.c:309
#9  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f041d0be700 (LWP 6159)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x47fd030) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x47fd030, previous=0x3c73a70) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x47fd030) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#6  0x000000342427c6bf in QThreadPrivate::start (arg=0x47fd030) at thread/qthread_unix.cpp:349
#7  0x000000341a607f33 in start_thread (arg=0x7f041d0be700) at pthread_create.c:309
#8  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f041c8bd700 (LWP 6160)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x3cf7c10) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x3cf7c10, previous=0x0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0d81c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x3cf7c10, previous=0x0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x0000003d2de0d81c in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x3cf7c10, previous=0x355c9b0) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x3cf7c10) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#8  0x000000342427c6bf in QThreadPrivate::start (arg=0x3cf7c10) at thread/qthread_unix.cpp:349
#9  0x000000341a607f33 in start_thread (arg=0x7f041c8bd700) at pthread_create.c:309
#10 0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f03fffff700 (LWP 6161)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000342427cbf6 in wait (time=18446744073709551615, this=0x161ee60) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1706c68, mutex=0x1552680, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000003d2de0a9dc in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1706c40, th=0x4730b40) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x0000003d2de0d803 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1328c60, th=0x4730b40, previous=0x6cc4070) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x0000003d2de0c36f in ThreadWeaver::Thread::run (this=0x4730b40) at /usr/src/debug/kdelibs-4.12.5/threadweaver/Weaver/Thread.cpp:98
#6  0x000000342427c6bf in QThreadPrivate::start (arg=0x4730b40) at thread/qthread_unix.cpp:349
#7  0x000000341a607f33 in start_thread (arg=0x7f03fffff700) at pthread_create.c:309
#8  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f03ff6fe700 (LWP 6337)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000033276bc1bd in JSC::BlockAllocator::blockFreeingThreadMain (this=0x76b3968) at /usr/src/debug/webkit-qtwebkit-23/Source/JavaScriptCore/heap/BlockAllocator.cpp:128
#2  0x00000033279aea86 in WTF::wtfThreadEntryPoint (param=0x7ee7520) at /usr/src/debug/webkit-qtwebkit-23/Source/WTF/wtf/ThreadingPthreads.cpp:196
#3  0x000000341a607f33 in start_thread (arg=0x7f03ff6fe700) at pthread_create.c:309
#4  0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f03fe9ed700 (LWP 6338)):
#0  0x0000003419aea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000341c2495b4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f03f00026e0, timeout=5399, context=0x7f03f00008c0) at gmain.c:4007
#2  g_main_context_iterate (context=context@entry=0x7f03f00008c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3708
#3  0x000000341c2496dc in g_main_context_iteration (context=0x7f03f00008c0, may_block=1) at gmain.c:3774
#4  0x00000034243b5a7e in QEventDispatcherGlib::processEvents (this=0x7f03f0002600, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x000000342438595f in QEventLoop::processEvents (this=this@entry=0x7f03fe9ecd10, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003424385cad in QEventLoop::exec (this=this@entry=0x7f03fe9ecd10, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003424279e8f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#8  0x000000342427c6bf in QThreadPrivate::start (arg=0x5151cf0) at thread/qthread_unix.cpp:349
#9  0x000000341a607f33 in start_thread (arg=0x7f03fe9ed700) at pthread_create.c:309
#10 0x0000003419af4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f04d5f238c0 (LWP 4485)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=receiver@entry=0x342da90, event=0x61c2c70, priority=priority@entry=0) at kernel/qcoreapplication.cpp:1350
#7  0x000000342438a9f7 in QCoreApplication::postEvent (receiver=receiver@entry=0x342da90, event=<optimized out>) at kernel/qcoreapplication.cpp:1311
#8  0x0000003424399084 in QObject::deleteLater (this=this@entry=0x342da90) at kernel/qobject.cpp:2115
#9  0x0000003cce253baf in QX11Data::xdndHandleFinished (this=<optimized out>, xe=0x7fff1cdb6f50, passive=<optimized out>) at kernel/qdnd_x11.cpp:1252
#10 0x0000003cce2389a3 in QApplication::x11ClientMessage (this=<optimized out>, w=0x7b6c610, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3232
#11 0x0000003cce24561f in QApplication::x11ProcessEvent (this=0x10a5200, event=event@entry=0x7fff1cdb6f50) at kernel/qapplication_x11.cpp:3802
#12 0x0000003cce26cc04 in x11EventSourceDispatch (s=s@entry=0x10b74d0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#13 0x000000341c2492a6 in g_main_dispatch (context=0x10b6f30) at gmain.c:3066
#14 g_main_context_dispatch (context=context@entry=0x10b6f30) at gmain.c:3642
#15 0x000000341c249628 in g_main_context_iterate (context=context@entry=0x10b6f30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#16 0x000000341c2496dc in g_main_context_iteration (context=0x10b6f30, may_block=1) at gmain.c:3774
#17 0x00000034243b5a5e in QEventDispatcherGlib::processEvents (this=0x103c220, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#18 0x0000003cce26cd86 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#19 0x000000342438595f in QEventLoop::processEvents (this=this@entry=0x7fff1cdb7340, flags=...) at kernel/qeventloop.cpp:149
#20 0x0000003424385cad in QEventLoop::exec (this=this@entry=0x7fff1cdb7340, flags=...) at kernel/qeventloop.cpp:204
#21 0x000000342438b399 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#22 0x0000003320a3d9cc in kdemain () from /lib64/libkdeinit4_plasma-desktop.so
#23 0x0000003419a21d65 in __libc_start_main (main=0x400940 <main>, argc=1, argv=0x7fff1cdb75b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1cdb75a8) at libc-start.c:285
#24 0x0000000000400971 in _start ()

Possible duplicates by query: bug 336160, bug 335594, bug 332874, bug 329133, bug 329087.

Reported using DrKonqi