Bug 329133

Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.11.0-14-generic x86_64
Distribution: Linux Mint 16 Petra

-- Information about the crash:
The first instance of Lancelot locked up so I added a second widget.  That's when Plasma crashed.

-- 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 0x7f17729997c0 (LWP 14676))]

Thread 5 (Thread 0x7f1752946700 (LWP 14680)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f176b64006b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f176b6400a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f1765cf7f6e in start_thread (arg=0x7f1752946700) at pthread_create.c:311
#4  0x00007f177228d9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f16c250a700 (LWP 14684)):
#0  0x00007f1772280f7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f17655ed6a4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f16bc0029b0, timeout=-1, context=0x7f16bc0009a0) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:4006
#2  g_main_context_iterate (context=context@entry=0x7f16bc0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3707
#3  0x00007f17655ed7ac in g_main_context_iteration (context=0x7f16bc0009a0, may_block=1) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3773
#4  0x00007f176ee59a76 in QEventDispatcherGlib::processEvents (this=0x7f16bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f176ee2b5ef in QEventLoop::processEvents (this=this@entry=0x7f16c2509d70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f176ee2b8e5 in QEventLoop::exec (this=this@entry=0x7f16c2509d70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f176ed2a88f in QThread::exec (this=this@entry=0x2142ad0) at thread/qthread.cpp:542
#8  0x00007f176ee0cd13 in QInotifyFileSystemWatcherEngine::run (this=0x2142ad0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f176ed2cf2f in QThreadPrivate::start (arg=0x2142ad0) at thread/qthread_unix.cpp:338
#10 0x00007f1765cf7f6e in start_thread (arg=0x7f16c250a700) at pthread_create.c:311
#11 0x00007f177228d9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f16bbfff700 (LWP 14694)):
#0  0x00007f17655ed667 in g_main_context_iterate (context=<optimized out>, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3719
#1  0x00007f17655edb0a in g_main_loop_run (loop=0x7f16b400dc30) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3906
#2  0x00007f16c1139b66 in gdbus_shared_thread_func (user_data=0x7f16b400dc70) at /build/buildd/glib2.0-2.38.1/./gio/gdbusprivate.c:278
#3  0x00007f17656120f5 in g_thread_proxy (data=0x27cbad0) at /build/buildd/glib2.0-2.38.1/./glib/gthread.c:798
#4  0x00007f1765cf7f6e in start_thread (arg=0x7f16bbfff700) at pthread_create.c:311
#5  0x00007f177228d9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f16b9590700 (LWP 14711)):
#0  g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f16a80029b0, timeout=-1, context=0x7f16a80009a0) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3990
#1  g_main_context_iterate (context=context@entry=0x7f16a80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3707
#2  0x00007f17655ed7ac in g_main_context_iteration (context=0x7f16a80009a0, may_block=1) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3773
#3  0x00007f176ee59a76 in QEventDispatcherGlib::processEvents (this=0x7f16a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f176ee2b5ef in QEventLoop::processEvents (this=this@entry=0x7f16b958fd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f176ee2b8e5 in QEventLoop::exec (this=this@entry=0x7f16b958fd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f176ed2a88f in QThread::exec (this=this@entry=0x31834b0) at thread/qthread.cpp:542
#7  0x00007f176ee0cd13 in QInotifyFileSystemWatcherEngine::run (this=0x31834b0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f176ed2cf2f in QThreadPrivate::start (arg=0x31834b0) at thread/qthread_unix.cpp:338
#9  0x00007f1765cf7f6e in start_thread (arg=0x7f16b9590700) at pthread_create.c:311
#10 0x00007f177228d9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f17729997c0 (LWP 14676)):
[KCrash Handler]
#6  QMutex::lock (this=this@entry=0xbbbbc7bbbbbbc803) at thread/qmutex.cpp:150
#7  0x00007f176ee30419 in QCoreApplication::postEvent (receiver=receiver@entry=0x4f73a00, event=0x3d28f90, priority=priority@entry=0) at kernel/qcoreapplication.cpp:1351
#8  0x00007f176ee30707 in QCoreApplication::postEvent (receiver=receiver@entry=0x4f73a00, event=<optimized out>) at kernel/qcoreapplication.cpp:1304
#9  0x00007f176ee3e274 in QObject::deleteLater (this=this@entry=0x4f73a00) at kernel/qobject.cpp:2083
#10 0x00007f176e2519af in QX11Data::xdndHandleFinished (this=<optimized out>, xe=0x7fff366645a0, passive=<optimized out>) at kernel/qdnd_x11.cpp:1256
#11 0x00007f176e233e23 in QApplication::x11ClientMessage (this=<optimized out>, w=0x56f6870, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3256
#12 0x00007f176e243682 in QApplication::x11ProcessEvent (this=0x1db0e80, event=event@entry=0x7fff366645a0) at kernel/qapplication_x11.cpp:3885
#13 0x00007f176e26b922 in x11EventSourceDispatch (s=s@entry=0x1dd1100, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#14 0x00007f17655ed3b6 in g_main_dispatch (context=0x1dd0e80) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3065
#15 g_main_context_dispatch (context=context@entry=0x1dd0e80) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3641
#16 0x00007f17655ed708 in g_main_context_iterate (context=context@entry=0x1dd0e80, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3712
#17 0x00007f17655ed7ac in g_main_context_iteration (context=0x1dd0e80, may_block=1) at /build/buildd/glib2.0-2.38.1/./glib/gmain.c:3773
#18 0x00007f176ee59a55 in QEventDispatcherGlib::processEvents (this=0x1d42ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#19 0x00007f176e26b9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#20 0x00007f176ee2b5ef in QEventLoop::processEvents (this=this@entry=0x7fff36664980, flags=...) at kernel/qeventloop.cpp:149
#21 0x00007f176ee2b8e5 in QEventLoop::exec (this=this@entry=0x7fff36664980, flags=...) at kernel/qeventloop.cpp:204
#22 0x00007f176ee30e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#23 0x00007f176e1c834c in QApplication::exec () at kernel/qapplication.cpp:3828
#24 0x00007f177259727c in kdemain (argc=1, argv=0x7fff36664bd8) at ../../../../plasma/desktop/shell/main.cpp:126
#25 0x00007f17721b4de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff36664bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff36664bc8) at libc-start.c:260
#26 0x000000000040070e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 314336.

Possible duplicates by query: bug 324730, bug 320592, bug 314336, bug 313616.

Reported using DrKonqi