Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-17-generic x86_64
Distribution: Ubuntu 11.10

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

just opened firefox with facebook, nothing else, i noticed that KDE plasma closes unexpectetly times to time and disabling 3d rendering effencts

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Aborted
[Current thread is 1 (Thread 0x7fb6b4bdc7a0 (LWP 1522))]

Thread 4 (Thread 0x7fb696b57700 (LWP 1524)):
#0  0x00007fb6a930d034 in __pthread_mutex_lock (mutex=0x165e1d8) at pthread_mutex_lock.c:61
#1  0x00007fb6a87fd023 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb6a87fddfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb6a87fe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb6b16a5f3e in QEventDispatcherGlib::processEvents (this=0x165d5e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb6b1679cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb6b1679ef7 in QEventLoop::exec (this=0x7fb696b56db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fb6b159127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007fb6b165ccbf in QInotifyFileSystemWatcherEngine::run (this=0x165be80) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fb6b1593d05 in QThreadPrivate::start (arg=0x165be80) at thread/qthread_unix.cpp:331
#10 0x00007fb6a930aefc in start_thread (arg=0x7fb696b57700) at pthread_create.c:304
#11 0x00007fb6b44c759d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fb68b515700 (LWP 1525)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fb6b446462f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fb6b44629c1 in __GI___libc_free (mem=0x7fb6b47801c0) at malloc.c:3736
#3  0x00007fb6a87f94e1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb6b16a5c37 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x20b1090, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:373
#5  0x00007fb6b16a5e49 in QEventDispatcherGlib::~QEventDispatcherGlib (this=0x20b1090, __in_chrg=<optimized out>) at kernel/qeventdispatcher_glib.cpp:401
#6  0x00007fb6b1592e34 in QThreadPrivate::finish (arg=0x7fb6b19ae580) at thread/qthread_unix.cpp:367
#7  0x00007fb6b1593d0d in ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at /usr/include/pthread.h:545
#8  ~__pthread_cleanup_class (this=<synthetic pointer>, __in_chrg=<optimized out>) at thread/qthread_unix.cpp:824
#9  QThreadPrivate::start (arg=0x7fb6b19ae580) at thread/qthread_unix.cpp:290
#10 0x00007fb6a930aefc in start_thread (arg=0x7fb68b515700) at pthread_create.c:304
#11 0x00007fb6b44c759d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb686832700 (LWP 1545)):
#0  0x00007fb6b44bb473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb6a87fdf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb6a87fe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb6b16a5f3e in QEventDispatcherGlib::processEvents (this=0x2900bc0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb6b1679cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb6b1679ef7 in QEventLoop::exec (this=0x7fb686831db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fb6b159127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fb6b165ccbf in QInotifyFileSystemWatcherEngine::run (this=0x28fffa0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb6b1593d05 in QThreadPrivate::start (arg=0x28fffa0) at thread/qthread_unix.cpp:331
#9  0x00007fb6a930aefc in start_thread (arg=0x7fb686832700) at pthread_create.c:304
#10 0x00007fb6b44c759d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb6b4bdc7a0 (LWP 1522)):
[KCrash Handler]
#6  0x00007fb6b441a3a5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007fb6b441db0b in __GI_abort () at abort.c:92
#8  0x00007fb6b4453d63 in __libc_message (do_abort=2, fmt=0x7fb6b4544e58 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#9  0x00007fb6b445e6e6 in malloc_printerr (action=3, str=0x7fb6b4544f68 "free(): invalid next size (fast)", ptr=<optimized out>) at malloc.c:6283
#10 0x00007fb6b44629cc in __GI___libc_free (mem=<optimized out>) at malloc.c:3738
#11 0x00007fb6b407a60c in ~ServicePrivate (this=0x1fd0b50, __in_chrg=<optimized out>) at ../../plasma/private/service_p.h:89
#12 Plasma::Service::~Service (this=0x39bc180, __in_chrg=<optimized out>) at ../../plasma/service.cpp:65
#13 0x00007fb689677703 in ?? () from /usr/lib/kde4/plasma_engine_notifications.so
#14 0x00007fb6b1691a88 in QObject::event (this=0x39bc180, e=<optimized out>) at kernel/qobject.cpp:1200
#15 0x00007fb6b0a2a474 in notify_helper (e=0x293b220, receiver=0x39bc180, this=0x1052980) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x1052980, receiver=0x39bc180, e=0x293b220) at kernel/qapplication.cpp:4458
#17 0x00007fb6b0a2f2e1 in QApplication::notify (this=0x1040ef0, receiver=0x39bc180, e=0x293b220) at kernel/qapplication.cpp:4365
#18 0x00007fb6b2329466 in KApplication::notify (this=0x1040ef0, receiver=0x39bc180, event=0x293b220) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x00007fb6b167aafc in QCoreApplication::notifyInternal (this=0x1040ef0, receiver=0x39bc180, event=0x293b220) at kernel/qcoreapplication.cpp:787
#20 0x00007fb6b167e51f in sendEvent (event=0x293b220, receiver=0x39bc180) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xfe0430) at kernel/qcoreapplication.cpp:1428
#22 0x00007fb6b16a5a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#23 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#24 0x00007fb6a87fda5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fb6a87fe258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fb6a87fe429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fb6b16a5ed6 in QEventDispatcherGlib::processEvents (this=0xfe1f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#28 0x00007fb6b0ad210e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007fb6b1679cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007fb6b1679ef7 in QEventLoop::exec (this=0x7fff52cf30e0, flags=...) at kernel/qeventloop.cpp:201
#31 0x00007fb6b167e789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x00007fb6b47c61a3 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#33 0x00007fb6b440530d in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff52cf34c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff52cf34b8) at libc-start.c:226
#34 0x0000000000400671 in _start ()

Possible duplicates by query: bug 296435, bug 296304, bug 294766, bug 294115, bug 293966.

Reported using DrKonqi