Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-40-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
Plasma crashed on adding net monitor widget to bottom panel.
Before this I installed and removed "plasma-panels-collection_2.0.2" and after modifying the panel causes the crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f70d7f35780 (LWP 9207))]

Thread 4 (Thread 0x7f70ae93f700 (LWP 9341)):
#0  0x00007f70d7924303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f70cbad3036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f70cbad3164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f70d4af5426 in QEventDispatcherGlib::processEvents (this=0x7f70a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f70d4ac4c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f70d4ac4ed7 in QEventLoop::exec (this=0x7f70ae93edd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f70d49c3fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f70d4aa49ff in QInotifyFileSystemWatcherEngine::run (this=0x25c4d00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f70d49c6fcb in QThreadPrivate::start (arg=0x25c4d00) at thread/qthread_unix.cpp:298
#9  0x00007f70cc3d7e9a in start_thread (arg=0x7f70ae93f700) at pthread_create.c:308
#10 0x00007f70d792fcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f70a4eb0700 (LWP 9347)):
#0  0x00007f70d7924303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f70cbad3036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f70cbad3164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f70d4af5426 in QEventDispatcherGlib::processEvents (this=0x7f709c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f70d4ac4c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f70d4ac4ed7 in QEventLoop::exec (this=0x7f70a4eafdd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f70d49c3fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f70d4aa49ff in QInotifyFileSystemWatcherEngine::run (this=0x2dbb7c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f70d49c6fcb in QThreadPrivate::start (arg=0x2dbb7c0) at thread/qthread_unix.cpp:298
#9  0x00007f70cc3d7e9a in start_thread (arg=0x7f70a4eb0700) at pthread_create.c:308
#10 0x00007f70d792fcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f709689d700 (LWP 9349)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f70d18a9222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f70d18a9259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f70cc3d7e9a in start_thread (arg=0x7f709689d700) at pthread_create.c:308
#4  0x00007f70d792fcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f70d7f35780 (LWP 9207)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=0x4601130, event=0x5a868a0, priority=0) at kernel/qcoreapplication.cpp:1273
#7  0x00007f70d3ed782a in QX11Data::xdndHandleFinished (this=<optimized out>, xe=0x7fffc74825b0, passive=false) at kernel/qdnd_x11.cpp:1256
#8  0x00007f70d3ec9693 in QApplication::x11ClientMessage (this=<optimized out>, w=0x33b1f50, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3242
#9  0x00007f70d3ec7beb in QApplication::x11ProcessEvent (this=0xc4b0a0, event=0x7fffc74825b0) at kernel/qapplication_x11.cpp:3871
#10 0x00007f70d3ef10d2 in x11EventSourceDispatch (s=0xc99430, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#11 0x00007f70cbad2d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f70cbad30a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f70cbad3164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f70d4af53bf in QEventDispatcherGlib::processEvents (this=0xc10ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#15 0x00007f70d3ef0d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#16 0x00007f70d4ac4c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#17 0x00007f70d4ac4ed7 in QEventLoop::exec (this=0x7fffc7482950, flags=...) at kernel/qeventloop.cpp:204
#18 0x00007f70d4ac9f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#19 0x00007f70d7c3ca13 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#20 0x00007f70d785d76d in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fffc7482d38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc7482d28) at libc-start.c:226
#21 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 314336.

Possible duplicates by query: bug 316266, bug 314336, bug 313703, bug 311749, bug 310989.

Reported using DrKonqi