Bug 306716

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.00
Qt Version: 4.8.2
Operating System: Linux 3.2.0-29-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Rebooting the machine via KDE's menu, under the "leave" group. Everything seems OK but then Plasma crashes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f41350ee780 (LWP 1810))]

Thread 13 (Thread 0x7f41102d6700 (LWP 1811)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:53
#1  __pthread_mutex_unlock (mutex=0x7f4108000a60) at pthread_mutex_unlock.c:290
#2  0x00007f4128b965d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4128b5aefc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4128b5b164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4131b819e6 in QEventDispatcherGlib::processEvents (this=0x7f41080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f4131b50f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f4131b51177 in QEventLoop::exec (this=0x7f41102d5dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f4131a50057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f4131b30c2f in QInotifyFileSystemWatcherEngine::run (this=0x2410660) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f4131a5307b in QThreadPrivate::start (arg=0x2410660) at thread/qthread_unix.cpp:307
#11 0x00007f412945fe9a in start_thread (arg=0x7f41102d6700) at pthread_create.c:308
#12 0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f410ecfc700 (LWP 1812)):
#0  0x00007f41349b20bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f4128b958cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4128b5aba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4128b5afd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4128b5b164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4131b819e6 in QEventDispatcherGlib::processEvents (this=0x7f41000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f4131b50f22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f4131b51177 in QEventLoop::exec (this=0x7f410ecfbdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f4131a50057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f4131b30c2f in QInotifyFileSystemWatcherEngine::run (this=0x24780d0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f4131a5307b in QThreadPrivate::start (arg=0x24780d0) at thread/qthread_unix.cpp:307
#11 0x00007f412945fe9a in start_thread (arg=0x7f410ecfc700) at pthread_create.c:308
#12 0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f410e216700 (LWP 1813)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f412e934022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f412e934059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f412945fe9a in start_thread (arg=0x7f410e216700) at pthread_create.c:308
#4  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f41077fe700 (LWP 1815)):
#0  0x00007f4128b96590 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4128b5a851 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4128b5af5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4128b5b49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f410c39d406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f4128b7c9e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f412945fe9a in start_thread (arg=0x7f41077fe700) at pthread_create.c:308
#7  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f4107fff700 (LWP 2807)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x42290d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x42290d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f4107ffee20, parent=0x2457c50, th=0x42290d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x42290d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4131a5307b in QThreadPrivate::start (arg=0x42290d0) at thread/qthread_unix.cpp:307
#8  0x00007f412945fe9a in start_thread (arg=0x7f4107fff700) at pthread_create.c:308
#9  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f4073313700 (LWP 2808)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x402bf20) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x402bf20) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f4073312e20, parent=0x2457c50, th=0x402bf20) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x402bf20) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4131a5307b in QThreadPrivate::start (arg=0x402bf20) at thread/qthread_unix.cpp:307
#8  0x00007f412945fe9a in start_thread (arg=0x7f4073313700) at pthread_create.c:308
#9  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f4070de9700 (LWP 2809)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x2e0a700) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x2e0a700) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fc9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x2e0a700) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f4070de8e20, parent=0x2457c50, th=0x2e0a700) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x2e0a700) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f4131a5307b in QThreadPrivate::start (arg=0x2e0a700) at thread/qthread_unix.cpp:307
#9  0x00007f412945fe9a in start_thread (arg=0x7f4070de9700) at pthread_create.c:308
#10 0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f406bfff700 (LWP 2810)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x3f50a40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x3f50a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fc9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x3f50a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f406bffee20, parent=0x2457c50, th=0x3f50a40) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x3f50a40) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f4131a5307b in QThreadPrivate::start (arg=0x3f50a40) at thread/qthread_unix.cpp:307
#9  0x00007f412945fe9a in start_thread (arg=0x7f406bfff700) at pthread_create.c:308
#10 0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f4063fff700 (LWP 2811)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x2e02d90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x2e02d90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f4063ffee20, parent=0x2457c50, th=0x2e02d90) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x2e02d90) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4131a5307b in QThreadPrivate::start (arg=0x2e02d90) at thread/qthread_unix.cpp:307
#8  0x00007f412945fe9a in start_thread (arg=0x7f4063fff700) at pthread_create.c:308
#9  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f406b1e1700 (LWP 3449)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x3f4a3c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x3f4a3c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f406b1e0e20, parent=0x2457c50, th=0x3f4a3c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x3f4a3c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4131a5307b in QThreadPrivate::start (arg=0x3f4a3c0) at thread/qthread_unix.cpp:307
#8  0x00007f412945fe9a in start_thread (arg=0x7f406b1e1700) at pthread_create.c:308
#9  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f406a9e0700 (LWP 3450)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x4570c90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x4570c90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f406a9dfe20, parent=0x2457c50, th=0x4570c90) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x4570c90) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f4131a5307b in QThreadPrivate::start (arg=0x4570c90) at thread/qthread_unix.cpp:307
#8  0x00007f412945fe9a in start_thread (arg=0x7f406a9e0700) at pthread_create.c:308
#9  0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f406a1df700 (LWP 3451)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4131a5358b in wait (time=18446744073709551615, this=0x245fa10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2441860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f412d5fa0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2457c50, th=0x4195700) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f412d5fc9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x4195700) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f412d5fc9f4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2442570, th=0x4195700) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f412d5fb84f in ThreadWeaver::ThreadRunHelper::run (this=0x7f406a1dee20, parent=0x2457c50, th=0x4195700) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f412d5fb8db in ThreadWeaver::Thread::run (this=0x4195700) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f4131a5307b in QThreadPrivate::start (arg=0x4195700) at thread/qthread_unix.cpp:307
#9  0x00007f412945fe9a in start_thread (arg=0x7f406a1df700) at pthread_create.c:308
#10 0x00007f41349bf4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f41350ee780 (LWP 1810)):
[KCrash Handler]
#6  0x00007f41310d3369 in QRasterWindowSurface::~QRasterWindowSurface (this=0x49f8740, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:117
#7  0x00007f41310d33e9 in QRasterWindowSurface::~QRasterWindowSurface (this=0x49f8740, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:121
#8  0x00007f41310ebaae in QWidgetBackingStore::~QWidgetBackingStore (this=0x437b350, __in_chrg=<optimized out>) at painting/qbackingstore.cpp:909
#9  0x00007f4130f1c249 in QWidgetBackingStoreTracker::destroy (this=0x4e3f890) at kernel/qwidget.cpp:217
#10 0x00007f4130f1c39e in QWidgetPrivate::deleteExtra (this=0x2174fe0) at kernel/qwidget.cpp:1831
#11 0x00007f4130f1c5cc in QWidgetPrivate::~QWidgetPrivate (this=0x2174fe0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:357
#12 0x00007f4130f1c8d9 in QWidgetPrivate::~QWidgetPrivate (this=0x2174fe0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:362
#13 0x00007f4131b6b190 in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#14 ~QScopedPointer (this=0x1fd9158, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#15 QObject::~QObject (this=0x1fd9150, __in_chrg=<optimized out>) at kernel/qobject.cpp:817
#16 0x00007f4130f1e64d in QWidget::~QWidget (this=0x1fd9150, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1552
#17 0x00007f4130f1e889 in QWidget::~QWidget (this=0x1fd9150, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1701
#18 0x00007f41314a8d55 in QGlobalStaticDeleter<QWidget>::~QGlobalStaticDeleter (this=0x7f41319d6038, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1929
#19 0x00007f4134908921 in __run_exit_handlers (status=0, listp=0x7f4134c83688, run_list_atexit=true) at exit.c:78
#20 0x00007f41349089a5 in __GI_exit (status=<optimized out>) at exit.c:100
#21 0x00007f41348ee774 in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff40113958, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff40113948) at libc-start.c:258
#22 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 292252, bug 287750, bug 294270, bug 261539.

Possible duplicates by query: bug 305852, bug 305687, bug 305475, bug 297684, bug 295018.

Reported using DrKonqi