Version:           2.3.0 (using KDE 4.4.2)
Compiler:          gcc-4.4.3 
OS:                Linux
Installed from:    Gentoo Packages

Hi.  I am experiencing random crashes which seem to be happening only when using a dynamic playlist.  Specifically, I have set 100% of tracks to match echo nest, based on the current track, and 50% to match last.fm track recommendations.  I see there are many other dynamic playlist related bugs, but I am not sure if this is the same thing, so here goes...

Application: Amarok (amarok), signal: Segmentation fault
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2200.5-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 0x7fedc3f8f7a0 (LWP 7098))]

Thread 41 (Thread 0x7fedacbc0710 (LWP 7099)):
#0  0x00007fedbf7e95a9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f1f17e in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#3  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 40 (Thread 0x7fedac3bf710 (LWP 7100)):
#0  0xffffffffff600132 in ?? ()
#1  0x00007fff73dff771 in ?? ()
#2  0x00007fedba672328 in clock_gettime () from /lib/librt.so.1
#3  0x00007fedc271ce4f in ?? () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007fedc2721b8d in ?? () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007fedc271fb53 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007fedba3c93d9 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#7  0x00007fedba3c9bc0 in ?? () from /usr/lib/libglib-2.0.so.0
#8  0x00007fedba3c9ff0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#9  0x00007fedc271fa36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#10 0x00007fedc26f4f82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#11 0x00007fedc26f5354 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007fedc2600899 in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#13 0x00007fedb2178040 in ?? () from /usr/lib64/kde4/plugins/phonon_backend/phonon_xine.so
#14 0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#15 0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#16 0x00007fedc116cf9d in clone () from /lib/libc.so.6
#17 0x0000000000000000 in ?? ()

Thread 39 (Thread 0x7fedab9b4710 (LWP 7103)):
#0  0x00007fedc1164273 in poll () from /lib/libc.so.6
#1  0x00007fedab9bb08e in ?? () from /usr/lib64/xine/plugins/1.28/xineplug_ao_out_alsa.so
#2  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#3  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 38 (Thread 0x7fedab1b3710 (LWP 7104)):
#0  0x00007fedb25ba4fb in ?? () from /usr/lib64/libasound.so.2
#1  0x00007fedb25c648b in ?? () from /usr/lib64/libasound.so.2
#2  0x00007fedab9b9e50 in ?? () from /usr/lib64/xine/plugins/1.28/xineplug_ao_out_alsa.so
#3  0x00007fedb1f2f47f in ?? () from /usr/lib64/libxine.so.1
#4  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#5  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 37 (Thread 0x7fedaa5a7710 (LWP 7105)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f2d133 in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f2eb3a in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 36 (Thread 0x7feda9da6710 (LWP 7106)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f2d133 in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f2eb3a in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 35 (Thread 0x7feda95a5710 (LWP 7107)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f2d133 in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f2eb3a in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 34 (Thread 0x7feda2b75710 (LWP 7109)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 33 (Thread 0x7feda188c710 (LWP 7110)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 32 (Thread 0x7feda108b710 (LWP 7111)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 31 (Thread 0x7feda088a710 (LWP 7112)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 30 (Thread 0x7feda0089710 (LWP 7113)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 29 (Thread 0x7fed9f888710 (LWP 7114)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 28 (Thread 0x7fed9f087710 (LWP 7115)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 27 (Thread 0x7fed9e886710 (LWP 7116)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 26 (Thread 0x7fed9e085710 (LWP 7117)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 25 (Thread 0x7fed9d884710 (LWP 7118)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 24 (Thread 0x7fed9d083710 (LWP 7119)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 23 (Thread 0x7fed9c882710 (LWP 7120)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 22 (Thread 0x7fed9c081710 (LWP 7121)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7fed9b880710 (LWP 7122)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7fed9b07f710 (LWP 7123)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 19 (Thread 0x7fed9a87e710 (LWP 7124)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 18 (Thread 0x7fed9a07d710 (LWP 7125)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7fed9987c710 (LWP 7126)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda817fa7d in os_aio_simulated_handle () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007feda8142da3 in fil_aio_wait () from /usr/lib64/mysql/ib/libinnobase.so.0
#4  0x00007feda81c00f8 in ?? () from /usr/lib64/mysql/ib/libinnobase.so.0
#5  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#6  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7fed98364710 (LWP 7128)):
#0  0x00007fedc1166693 in select () from /lib/libc.so.6
#1  0x00007feda817be4b in os_thread_sleep () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda81be920 in srv_lock_timeout_and_monitor_thread () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fed97b63710 (LWP 7129)):
#0  0x00007fedc1166693 in select () from /lib/libc.so.6
#1  0x00007feda817be4b in os_thread_sleep () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda81bbe2f in srv_error_monitor_thread () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fed97362710 (LWP 7130)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007feda817b9f5 in os_event_wait_low () from /usr/lib64/mysql/ib/libinnobase.so.0
#2  0x00007feda81bc7c0 in srv_master_thread () from /usr/lib64/mysql/ib/libinnobase.so.0
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7fed8fccf710 (LWP 7131)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedbc698786 in ?? () from /usr/lib64/qt4/libQtWebKit.so.4
#2  0x00007fedbc6987c9 in ?? () from /usr/lib64/qt4/libQtWebKit.so.4
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7fed8da99710 (LWP 7132)):
#0  0x00007fedc1166693 in select () from /lib/libc.so.6
#1  0x00007fedb1f44e95 in xine_usec_sleep () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f2ba31 in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fed8d083710 (LWP 7134)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedc260426b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007fedbe1cf181 in ?? () from /usr/lib64/libthreadweaver.so.4
#3  0x00007fedbe1d2fd0 in ?? () from /usr/lib64/libthreadweaver.so.4
#4  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#5  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#6  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#7  0x00007fedbe1d1664 in ?? () from /usr/lib64/libthreadweaver.so.4
#8  0x00007fedbe1d1764 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#9  0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#10 0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#11 0x00007fedc116cf9d in clone () from /lib/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fed8c882710 (LWP 7135)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedc260426b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007fedbe1cf181 in ?? () from /usr/lib64/libthreadweaver.so.4
#3  0x00007fedbe1d2fd0 in ?? () from /usr/lib64/libthreadweaver.so.4
#4  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#5  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#6  0x00007fedbe1d1664 in ?? () from /usr/lib64/libthreadweaver.so.4
#7  0x00007fedbe1d1764 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#8  0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#10 0x00007fedc116cf9d in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fed884aa710 (LWP 7136)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f2253b in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f27fcf in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fed87ca9710 (LWP 7137)):
#0  0x00007fedbf7e95a9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f2d17f in ?? () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f2d1b6 in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedb1f2e63e in ?? () from /usr/lib64/libxine.so.1
#4  0x00007fedb1f3a9f0 in ?? () from /usr/lib64/libxine.so.1
#5  0x00007fedb1f3a9f0 in ?? () from /usr/lib64/libxine.so.1
#6  0x00007fed6d486576 in ?? () from /usr/lib64/xine/plugins/1.28/xineplug_decode_faad.so
#7  0x00007fedb1f296d0 in ?? () from /usr/lib64/libxine.so.1
#8  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#9  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fed86e8c710 (LWP 7138)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedb1f3163b in xine_event_wait () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f316ae in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fed84fdc710 (LWP 7140)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedc260426b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007fedbe1cf181 in ?? () from /usr/lib64/libthreadweaver.so.4
#3  0x00007fedbe1d2fd0 in ?? () from /usr/lib64/libthreadweaver.so.4
#4  0x00007fedbe1d1664 in ?? () from /usr/lib64/libthreadweaver.so.4
#5  0x00007fedbe1d1764 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#6  0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#8  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fed83fda710 (LWP 7143)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedc260426b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007fedbe1cf181 in ?? () from /usr/lib64/libthreadweaver.so.4
#3  0x00007fedbe1d2fd0 in ?? () from /usr/lib64/libthreadweaver.so.4
#4  0x00007fedbe1d2fe9 in ?? () from /usr/lib64/libthreadweaver.so.4
#5  0x00007fedbe1d1664 in ?? () from /usr/lib64/libthreadweaver.so.4
#6  0x00007fedbe1d1764 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#7  0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#9  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fed837d9710 (LWP 7144)):
#0  0x00007fedbf7e923c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedbda2eec6 in ?? () from /usr/lib64/qt4/libQtScript.so.4
#2  0x00007fedbda2ef09 in ?? () from /usr/lib64/qt4/libQtScript.so.4
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fed6f650710 (LWP 7353)):
#0  0x00007fedbf7e95a9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fedc26041e1 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007fedc25f9698 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007fedc26032a5 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#5  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fed857dd710 (LWP 7377)):
#0  0x00007fedc1166693 in select () from /lib/libc.so.6
#1  0x00007fedb1f44e95 in xine_usec_sleep () from /usr/lib64/libxine.so.1
#2  0x00007fedb1f365cb in ?? () from /usr/lib64/libxine.so.1
#3  0x00007fedbf7e4894 in start_thread () from /lib/libpthread.so.0
#4  0x00007fedc116cf9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fedc3f8f7a0 (LWP 7098)):
[KCrash Handler]
#5  0x00007fedc268dab4 in QIODevice::readAll() () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007fed939faad2 in Dynamic::LastFmBias::trackQueryDone (this=0x49fa220) at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0/src/services/lastfm/biases/LastFmBias.cpp:298
#7  0x00007fed939fc060 in Dynamic::LastFmBias::qt_metacall (this=0x49fa220, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff73dbe840)
    at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0_build/src/services/lastfm/LastFmBias.moc:93
#8  0x00007fedc270931f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007fed93a04da8 in KNetworkReply::jobDone (this=0x451e380, kJob=<value optimized out>)
    at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0/src/services/lastfm/kdenetwork/knetworkreply.cpp:153
#10 0x00007fed93a05443 in KNetworkReply::qt_metacall (this=0x451e380, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff73dbeaa0)
    at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0_build/src/services/lastfm/knetworkreply.moc:79
#11 0x00007fedc270931f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007fedc2b03122 in KJob::result(KJob*) () from /usr/lib64/libkdecore.so.5
#13 0x00007fedc2b03481 in KJob::emitResult() () from /usr/lib64/libkdecore.so.5
#14 0x00007fedbb2c290e in KIO::SimpleJob::slotFinished() () from /usr/lib64/libkio.so.5
#15 0x00007fedbb2c2d1b in KIO::TransferJob::slotFinished() () from /usr/lib64/libkio.so.5
#16 0x00007fedbb2c8f3d in KIO::TransferJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#17 0x00007fedc270931f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#18 0x00007fedbb3655c2 in KIO::SlaveInterface::dispatch(int, QByteArray const&) () from /usr/lib64/libkio.so.5
#19 0x00007fedbb365966 in KIO::SlaveInterface::dispatch() () from /usr/lib64/libkio.so.5
#20 0x00007fedbb35a691 in KIO::Slave::gotInput() () from /usr/lib64/libkio.so.5
#21 0x00007fedbb35b86c in KIO::Slave::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#22 0x00007fedc270931f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007fedbb299511 in ?? () from /usr/lib64/libkio.so.5
#24 0x00007fedbb29a2ad in KIO::Connection::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#25 0x00007fedc2706279 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#26 0x00007fedc1ad692c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#27 0x00007fedc1adcf7b in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#28 0x00007fedc331ac23 in App::notify (this=0x7fff73dbe6c0, receiver=0x45fa010, event=0x0) at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0/src/App.cpp:917
#29 0x00007fedc26f662b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#30 0x00007fedc26f8d76 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#31 0x00007fedc271fea3 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#32 0x00007fedba3c650d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0x00007fedba3c9ec8 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0x00007fedba3c9ff0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0x00007fedc271f9e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#36 0x00007fedc1b84b6e in ?? () from /usr/lib64/qt4/libQtGui.so.4
#37 0x00007fedc26f4f82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#38 0x00007fedc26f5354 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#39 0x00007fedc26f903b in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#40 0x0000000000405ef4 in main (argc=1, argv=0x7fff73dc1c38) at /var/tmp/portage/media-sound/amarok-2.3.0-r1/work/amarok-2.3.0/src/main.cpp:237

Dr. Konqi claims this report "may be useful" so if there are any other packages that need debugging info installed for this report to be useful, just ask :)