Application: amarok (2.3.0)
KDE Platform Version: 4.4.1 (KDE 4.4.1) (Compiled from sources)
Qt Version: 4.6.2
Operating System: Linux 2.6.33-gentoo x86_64
Distribution: "Gentoo Base System release 2.0.1"

-- Information about the crash:
Amarok 2.2.2.90 was working fine.  After upgrading to 2.3.0, startup kept going through the "Updating system configuration." repeatedly, and would say that collection plugins were missing if I cancelled it.

After running "kbuildsycoca --noincremental" as recommended by that dialog, Amarok will display the splash screen, then crash.  This is reproducible.

 -- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2200.4-gdb.py", line 9, in <module>
    from gobject import register
  File "/usr/share/glib-2.0/gdb/gobject.py", line 3, in <module>
    import gdb.backtrace
ImportError: No module named backtrace
[Current thread is 1 (Thread 0x7fbf9f65f780 (LWP 29874))]

Thread 29 (Thread 0x7fbf7c760710 (LWP 29917)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
#1  0x00007fbf81b56361 in metronom_sync_loop (this=0x21243f0) at metronom.c:870
#2  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#3  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 28 (Thread 0x7fbf7bf5f710 (LWP 29918)):
#0  0x00007fbf9c568d13 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbf95583e7c in g_main_context_poll (context=0x20a9cc0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2904
#2  g_main_context_iterate (context=0x20a9cc0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2586
#3  0x00007fbf955841a8 in IA__g_main_context_iteration (context=0x20a9cc0, may_block=1) at gmain.c:2654
#4  0x00007fbf9db7706e in QEventDispatcherGlib::processEvents (this=0x20ac830, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#5  0x00007fbf9db4c572 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007fbf9db4c93d in QEventLoop::exec (this=0x7fbf7bf5eda0, flags=) at kernel/qeventloop.cpp:201
#7  0x00007fbf9da58ee9 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#8  0x00007fbf81daf8d0 in Phonon::Xine::XineThread::run (this=0x2126000) at /var/tmp/paludis/media-sound-phonon-4.4.0/work/phonon-4.4/xine/xinethread.cpp:143
#9  0x00007fbf9da5b875 in QThreadPrivate::start (arg=0x2126000) at thread/qthread_unix.cpp:248
#10 0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#11 0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 27 (Thread 0x7fbf7b559710 (LWP 29919)):
#0  0x00007fbf9c568d13 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbf9350d5b3 in poll_func (ufds=0x20a9f90, nfds=<value optimized out>, timeout=<value optimized out>, userdata=0x20ab550) at pulse/thread-mainloop.c:75
#2  0x00007fbf934fdad6 in pa_mainloop_poll (m=0x2126750) at pulse/mainloop.c:879
#3  0x00007fbf934fee8e in pa_mainloop_iterate (m=0x2126750, block=<value optimized out>, retval=0x0) at pulse/mainloop.c:961
#4  0x00007fbf934fef70 in pa_mainloop_run (m=0x2126750, retval=0x0) at pulse/mainloop.c:979
#5  0x00007fbf9350d4b3 in thread (userdata=0x20ab3b0) at pulse/thread-mainloop.c:94
#6  0x00007fbf911c1ec7 in internal_thread_func (userdata=0x2126890) at pulsecore/thread-posix.c:72
#7  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#8  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 26 (Thread 0x7fbf76d57710 (LWP 29920)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf81b64463 in fifo_peek_int (fifo=0x212d440, blocking=1) at audio_out.c:348
#2  0x00007fbf81b65e7a in fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 25 (Thread 0x7fbf7614b710 (LWP 29921)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf81b64463 in fifo_peek_int (fifo=0x2131e60, blocking=1) at audio_out.c:348
#2  0x00007fbf81b65e7a in fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 24 (Thread 0x7fbf7594a710 (LWP 29923)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf81b64463 in fifo_peek_int (fifo=0x1f7fbc0, blocking=1) at audio_out.c:348
#2  0x00007fbf81b65e7a in fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 23 (Thread 0x7fbf72089710 (LWP 30040)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47c10, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=0, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=0) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 22 (Thread 0x7fbf71083710 (LWP 30041)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47c90, reset_sig_count=3) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=1, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=1) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7fbf70882710 (LWP 30042)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47d10, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=2, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=2) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7fbf70081710 (LWP 30043)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47d90, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=3, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=3) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 19 (Thread 0x7fbf6f880710 (LWP 30044)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47e10, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=4, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=4) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 18 (Thread 0x7fbf6f07f710 (LWP 30045)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47e90, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=5, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=5) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7fbf6e87e710 (LWP 30046)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47f10, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=6, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=6) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7fbf6e07d710 (LWP 30047)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e47f90, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=7, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=7) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fbf6d87c710 (LWP 30048)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48010, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=8, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=8) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fbf6d07b710 (LWP 30049)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48090, reset_sig_count=2) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=9, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=9) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7fbf6c87a710 (LWP 30050)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48110, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=10, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=10) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7fbf6c079710 (LWP 30051)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48190, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=11, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=11) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fbf6b878710 (LWP 30052)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48210, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=12, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=12) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fbf6b077710 (LWP 30053)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48290, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=13, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=13) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fbf6a876710 (LWP 30054)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48310, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=14, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=14) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fbf6a075710 (LWP 30055)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48390, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=15, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=15) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fbf69874710 (LWP 30056)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48410, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=16, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=16) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fbf69073710 (LWP 30057)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2e48490, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf739c8942 in os_aio_simulated_handle (global_segment=17, message1=<value optimized out>, message2=<value optimized out>, type=<value optimized out>) at os/os0file.c:4217
#3  0x00007fbf7398bc73 in fil_aio_wait (segment=17) at fil/fil0fil.c:4153
#4  0x00007fbf73a08e08 in io_handler_thread (arg=<value optimized out>) at srv/srv0start.c:446
#5  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fbf67b5b710 (LWP 30069)):
#0  0x00007fbf9c56b103 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fbf739c4c9b in os_thread_sleep (tm=<value optimized out>) at os/os0thread.c:274
#2  0x00007fbf73a075f1 in srv_lock_timeout_and_monitor_thread (arg=<value optimized out>) at srv/srv0srv.c:2190
#3  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fbf6735a710 (LWP 30070)):
#0  0x00007fbf9c56b103 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fbf739c4c9b in os_thread_sleep (tm=<value optimized out>) at os/os0thread.c:274
#2  0x00007fbf73a0490f in srv_error_monitor_thread (arg=<value optimized out>) at srv/srv0srv.c:2414
#3  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fbf66b59710 (LWP 30071)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf739c47e5 in os_event_wait_low (event=0x2678420, reset_sig_count=1) at os/os0sync.c:420
#2  0x00007fbf73a052b9 in srv_master_thread (arg=<value optimized out>) at srv/srv0srv.c:3069
#3  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbf5e370710 (LWP 30834)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf97a843e6 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtWebKit.so.4
#2  0x00007fbf97a84429 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtWebKit.so.4
#3  0x00007fbf9abeea04 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#4  0x00007fbf9c57198d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbf9f65f780 (LWP 29874)):
[KCrash Handler]
#5  0x00007fbf9d519c9a in qt_closestItemFirst (item1=<value optimized out>, item2=0x4473200) at graphicsview/qgraphicsitem_p.h:681
#6  0x00007fbf9d5200ee in QAlgorithmsPrivate::qSortHelper<QList<QGraphicsItem*>::iterator, QGraphicsItem*, bool (*)(QGraphicsItem const*, QGraphicsItem const*)> (start=)
    at ../../include/QtCore/../../src/corelib/tools/qalgorithms.h:351
#7  0x00007fbf9d520288 in qSort<QList<QGraphicsItem*>::iterator, bool (*)(QGraphicsItem const*, QGraphicsItem const*)> (start=<value optimized out>, end=<value optimized out>, lessThan=0x4473200)
    at ../../include/QtCore/../../src/corelib/tools/qalgorithms.h:187
#8  0x00007fbf9d51f8ff in QGraphicsSceneBspTreeIndexPrivate::sortItems (itemList=0x7fff98a3e590, order=<value optimized out>, sortCacheEnabled=<value optimized out>, 
    onlyTopLevelItems=<value optimized out>) at graphicsview/qgraphicsscenebsptreeindex.cpp:434
#9  0x00007fbf9d51fb28 in QGraphicsSceneBspTreeIndex::items (this=<value optimized out>, order=Qt::DescendingOrder) at graphicsview/qgraphicsscenebsptreeindex.cpp:572
#10 0x00007fbf9d4fa29a in QGraphicsScene::items (this=<value optimized out>) at graphicsview/qgraphicsscene.cpp:1900
#11 0x00007fbf9d500e39 in QGraphicsScene::itemsBoundingRect (this=0x456fb90) at graphicsview/qgraphicsscene.cpp:1887
#12 0x00007fbf9d5079f9 in QGraphicsScene::sceneRect (this=0x456fb90) at graphicsview/qgraphicsscene.cpp:1636
#13 0x00007fbf9d528fea in QGraphicsView::sceneRect (this=<value optimized out>) at graphicsview/qgraphicsview.cpp:1625
#14 0x00007fbf99bec1d9 in Plasma::viewFor (item=0x4575a70) at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1/plasma/plasma.cpp:101
#15 0x00007fbf99c98a04 in Plasma::WebView::itemChange (this=0x456fb90, change=<value optimized out>, value=<value optimized out>)
    at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1/plasma/widgets/webview.cpp:492
#16 0x00007fbf9d50a819 in QGraphicsScene::addItem (this=0x4398250, item=0x4575a70) at graphicsview/qgraphicsscene.cpp:2621
#17 0x00007fbf9d50a778 in QGraphicsScene::addItem (this=0x4398250, item=0x456fb90) at graphicsview/qgraphicsscene.cpp:2608
#18 0x00007fbf9d4d9d4d in QGraphicsItemPrivate::setParentItemHelper (this=0x456ff20, newParent=0x4473200, newParentVariant=0x7fff98a3ece0, thisPointerVariant=0x7fff98a3ecc0)
    at graphicsview/qgraphicsitem.cpp:1131
#19 0x00007fbf9d4da36a in QGraphicsItem::setParentItem (this=0x456fb90, newParent=0x4473200) at graphicsview/qgraphicsitem.cpp:1601
#20 0x00007fbf99bab3a5 in Plasma::Containment::addApplet (this=0x44731f0, applet=0x456fb80, pos=..., delayInit=false)
    at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1/plasma/containment.cpp:941
#21 0x00007fbf99bab6eb in Plasma::ContainmentPrivate::addApplet (this=0x4471400, name=<value optimized out>, args=<value optimized out>, appletGeometry=..., id=0, delayInit=false)
    at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1/plasma/containment.cpp:2284
#22 0x00007fbf55536837 in Context::VerticalToolbarContainment::addApplet (this=0x44731f0, pluginName=..., loc=-1)
    at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/context/containments/verticallayout/VerticalToolbarContainment.cpp:144
#23 0x00007fbf55536d77 in Context::VerticalToolbarContainment::loadConfig (this=0x44731f0, conf=...)
    at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/context/containments/verticallayout/VerticalToolbarContainment.cpp:110
#24 0x00007fbf9e4d0002 in Context::ContextView::loadConfig (this=<value optimized out>) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/context/ContextView.cpp:224
#25 0x00007fbf9e4d08a7 in Context::ContextView::showHome (this=0x44d4ab0) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/context/ContextView.cpp:205
#26 0x00007fbf9e8d046a in MainWindow::createContextView (this=0x2404110, containment=0x44731f0) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/MainWindow.cpp:408
#27 0x00007fbf9e8da7ae in MainWindow::qt_metacall (this=0x2404110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff98a3f4f0)
    at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0_build/src/MainWindow.moc:156
#28 0x00007fbf9db609bf in QMetaObject::activate (sender=0x4398250, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x4473200) at kernel/qobject.cpp:3285
#29 0x00007fbf99bba3af in Plasma::Corona::containmentAdded (this=0x4473600, _t1=0x44731f0) at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1_build/plasma/corona.moc:146
#30 0x00007fbf99bbf0bf in Plasma::CoronaPrivate::addContainment (this=0x43989c0, name=<value optimized out>, args=<value optimized out>, id=<value optimized out>, delayedInit=false)
    at /var/tmp/paludis/kde-base-kdelibs-4.4.1-r1/work/kdelibs-4.4.1/plasma/corona.cpp:248
#31 0x00007fbf9e4ced25 in Context::ContextScene::loadDefaultSetup (this=0x4398250) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/context/ContextScene.cpp:45
#32 0x00007fbf9e8db533 in MainWindow::init (this=0x2404110) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/MainWindow.cpp:303
#33 0x00007fbf9e8dd86d in MainWindow (this=0x2404110) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/MainWindow.cpp:182
#34 0x00007fbf9e8aa5a5 in App::continueInit (this=0x7fff98a404e0) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/App.cpp:664
#35 0x00007fbf9e8ad63d in App (this=0x7fff98a404e0) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/App.cpp:211
#36 0x0000000000408797 in main (argc=<value optimized out>, argv=0x7fff98a42458) at /var/tmp/paludis/media-sound-amarok-2.3.0/work/amarok-2.3.0/src/main.cpp:235

This bug may be a duplicate of or related to bug 231489.

Possible duplicates by query: bug 231489, bug 231454, bug 231447, bug 231429, bug 231345.

Reported using DrKonqi