Bug 272787 - Amarok crashed while browsing files
Summary: Amarok crashed while browsing files
Status: RESOLVED NOT A BUG
Alias: None
Product: amarok
Classification: Applications
Component: general (show other bugs)
Version: 2.4.0
Platform: Ubuntu Linux
: NOR crash
Target Milestone: 2.4.1
Assignee: Amarok Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-05-08 17:44 UTC by Imanol
Modified: 2011-06-16 13:53 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Imanol 2011-05-08 17:44:22 UTC
Application: amarok (2.4.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic x86_64
Distribution: Linux Mint 10 KDE

-- Information about the crash:
- What I was doing when the application crashed:
I was browsing the file system:
I added some music to the local collection, I refreshed the collection, and while I was trying to find the new music in the file system explorer of amarok it crashed.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc45c2af840 (LWP 3083))]

Thread 10 (Thread 0x7fc43b548700 (LWP 3087)):
#0  0x00007fc4534a0a99 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#1  0x00007fc4534a0e78 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fc4534a145c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fc45975f1e6 in QEventDispatcherGlib::processEvents (this=0x1d1fcc0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fc459731a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fc459731dec in QEventLoop::exec (this=0x7fc43b547c10, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fc45963c2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fc4597115f8 in QInotifyFileSystemWatcherEngine::run (this=0x1d1fce0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc45963f27e in QThreadPrivate::start (arg=0x1d1fce0) at thread/qthread_unix.cpp:266
#9  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fc42df40700 (LWP 3090)):
#0  0x00007fc458e05203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc4534a1009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fc4534a17b5 in g_main_loop_run () from /lib/libglib-2.0.so.0
#3  0x00007fc44a8623c4 in ?? () from /usr/lib/libgio-2.0.so.0
#4  0x00007fc4534c67e4 in ?? () from /lib/libglib-2.0.so.0
#5  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#7  0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fc42c334700 (LWP 3093)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc45519c334 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fc4554a7160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fc45519c369 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fc4554b5234) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#5  0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fc42205d700 (LWP 3103)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc45963fe3b in wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc456872d64 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x23d3490, th=0x1dc55c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc456875f6b in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1dc55c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc4568744df in ThreadWeaver::ThreadRunHelper::run (this=0x7fc42205cc60, parent=0x23d3490, th=0x1dc55c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fc456874a38 in ThreadWeaver::Thread::run (this=0x1dc55c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fc45963f27e in QThreadPrivate::start (arg=0x1dc55c0) at thread/qthread_unix.cpp:266
#8  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fc42305f700 (LWP 3105)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc45963fe3b in wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc456872d64 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x23d3490, th=0x1df8a40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc456875f6b in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1df8a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc456875f84 in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1df8a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fc4568744df in ThreadWeaver::ThreadRunHelper::run (this=0x7fc42305ec60, parent=0x23d3490, th=0x1df8a40) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fc456874a38 in ThreadWeaver::Thread::run (this=0x1df8a40) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fc45963f27e in QThreadPrivate::start (arg=0x1df8a40) at thread/qthread_unix.cpp:266
#9  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fc42185c700 (LWP 3108)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc45963fe3b in wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc456872d64 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x23d3490, th=0x1f0aa80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc456875f6b in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1f0aa80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc456875f84 in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1f0aa80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fc456875f84 in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x1f0aa80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007fc4568744df in ThreadWeaver::ThreadRunHelper::run (this=0x7fc42185bc60, parent=0x23d3490, th=0x1f0aa80) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007fc456874a38 in ThreadWeaver::Thread::run (this=0x1f0aa80) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007fc45963f27e in QThreadPrivate::start (arg=0x1f0aa80) at thread/qthread_unix.cpp:266
#10 0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#12 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fc42105b700 (LWP 3109)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc45963fe3b in wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1da7700, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fc456872d64 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x23d3490, th=0x18d6ad0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc456875f6b in ThreadWeaver::WorkingHardState::applyForWork (this=0x251cf40, th=0x18d6ad0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc4568744df in ThreadWeaver::ThreadRunHelper::run (this=0x7fc42105ac60, parent=0x23d3490, th=0x18d6ad0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fc456874a38 in ThreadWeaver::Thread::run (this=0x18d6ad0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fc45963f27e in QThreadPrivate::start (arg=0x18d6ad0) at thread/qthread_unix.cpp:266
#8  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc41a552700 (LWP 3110)):
#0  0x00007fc458e05203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc4534a1009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fc4534a145c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fc45975f1e6 in QEventDispatcherGlib::processEvents (this=0x2595bb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007fc459731a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fc459731dec in QEventLoop::exec (this=0x7fc41a551c10, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fc45963c2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fc4597115f8 in QInotifyFileSystemWatcherEngine::run (this=0x7fc41c15fc00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc45963f27e in QThreadPrivate::start (arg=0x7fc41c15fc00) at thread/qthread_unix.cpp:266
#9  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc41950e700 (LWP 3111)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc44ff0220e in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007fc44ff02329 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007fc44ab60953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fc454898971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#5  0x00007fc458e1192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc45c2af840 (LWP 3083)):
[KCrash Handler]
#6  QMetaObject::changeGuard (ptr=0x331dff8, o=0x0) at kernel/qobject.cpp:470
#7  0x00007fc45a57c7a6 in operator= (this=0x331dd30, action=0x2e066c0, action_e=QAction::Trigger, self=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QMenuPrivate::activateAction (this=0x331dd30, action=0x2e066c0, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1098
#9  0x00007fc45a16c04e in QWidget::event (this=0x2f374e0, event=0x7fffbabcf840) at kernel/qwidget.cpp:8187
#10 0x00007fc45a57e90b in QMenu::event (this=0x2f374e0, e=0x7fffbabcf840) at widgets/qmenu.cpp:2410
#11 0x00007fc45a115fdc in QApplicationPrivate::notify_helper (this=0x18d27c0, receiver=0x2f374e0, e=0x7fffbabcf840) at kernel/qapplication.cpp:4396
#12 0x00007fc45a11c30e in QApplication::notify (this=0x7fffbabd1c30, receiver=0x2f374e0, e=0x7fffbabcf840) at kernel/qapplication.cpp:3959
#13 0x00007fc45bcab2f6 in KApplication::notify (this=0x7fffbabd1c30, receiver=0x2f374e0, event=0x7fffbabcf840) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007fc459732cdc in QCoreApplication::notifyInternal (this=0x7fffbabd1c30, receiver=0x2f374e0, event=0x7fffbabcf840) at kernel/qcoreapplication.cpp:732
#15 0x00007fc45a11adbe in sendEvent (receiver=0x2f374e0, event=0x7fffbabcf840, alienWidget=0x0, nativeWidget=0x2f374e0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#16 QApplicationPrivate::sendMouseEvent (receiver=0x2f374e0, event=0x7fffbabcf840, alienWidget=0x0, nativeWidget=0x2f374e0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#17 0x00007fc45a19e7bd in QETWidget::translateMouseEvent (this=0x2f374e0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4337
#18 0x00007fc45a19cc5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffbabd0160) at kernel/qapplication_x11.cpp:3536
#19 0x00007fc45a1c90e2 in x11EventSourceDispatch (s=0x18d85f0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#20 0x00007fc45349d342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#21 0x00007fc4534a12a8 in ?? () from /lib/libglib-2.0.so.0
#22 0x00007fc4534a145c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#23 0x00007fc45975f193 in QEventDispatcherGlib::processEvents (this=0x175a6e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#24 0x00007fc45a1c8a4e in QGuiEventDispatcherGlib::processEvents (this=0x805, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007fc459731a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#26 0x00007fc459731dec in QEventLoop::exec (this=0x7fffbabd0490, flags=) at kernel/qeventloop.cpp:201
#27 0x00007fc45a579ec5 in QMenu::exec (this=0x2f374e0, p=<value optimized out>, action=0x0) at widgets/qmenu.cpp:2054
#28 0x00007fc45a589b82 in QPushButtonPrivate::_q_popupPressed (this=0x32001c0) at widgets/qpushbutton.cpp:592
#29 0x00007fc45a58b0aa in QPushButton::qt_metacall (this=0x32e5a60, _c=QMetaObject::InvokeMetaMethod, _id=26579536, _a=0x7fffbabd0620) at .moc/release-shared/moc_qpushbutton.cpp:80
#30 0x00007fc45b32a858 in ?? () from /usr/lib/libamaroklib.so.1
#31 0x00007fc45974ab27 in QMetaObject::activate (sender=0x32e5a60, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffff00000001) at kernel/qobject.cpp:3280
#32 0x00007fc45a4edade in QAbstractButtonPrivate::emitPressed (this=0x32001c0) at widgets/qabstractbutton.cpp:560
#33 0x00007fc45a4edcbc in QAbstractButton::mousePressEvent (this=0x32e5a60, e=0x7fffbabd0f70) at widgets/qabstractbutton.cpp:1096
#34 0x00007fc45a16c035 in QWidget::event (this=0x32e5a60, event=0x7fffbabd0f70) at kernel/qwidget.cpp:8183
#35 0x00007fc45a115fdc in QApplicationPrivate::notify_helper (this=0x18d27c0, receiver=0x32e5a60, e=0x7fffbabd0f70) at kernel/qapplication.cpp:4396
#36 0x00007fc45a11c30e in QApplication::notify (this=0x7fffbabd1c30, receiver=0x32e5a60, e=0x7fffbabd0f70) at kernel/qapplication.cpp:3959
#37 0x00007fc45bcab2f6 in KApplication::notify (this=0x7fffbabd1c30, receiver=0x32e5a60, event=0x7fffbabd0f70) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007fc459732cdc in QCoreApplication::notifyInternal (this=0x7fffbabd1c30, receiver=0x32e5a60, event=0x7fffbabd0f70) at kernel/qcoreapplication.cpp:732
#39 0x00007fc45a11adbe in sendEvent (receiver=0x32e5a60, event=0x7fffbabd0f70, alienWidget=0x32e5a60, nativeWidget=0x1f49310, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#40 QApplicationPrivate::sendMouseEvent (receiver=0x32e5a60, event=0x7fffbabd0f70, alienWidget=0x32e5a60, nativeWidget=0x1f49310, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#41 0x00007fc45a19e345 in QETWidget::translateMouseEvent (this=0x1f49310, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#42 0x00007fc45a19cc5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffbabd1890) at kernel/qapplication_x11.cpp:3536
#43 0x00007fc45a1c90e2 in x11EventSourceDispatch (s=0x18d85f0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#44 0x00007fc45349d342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#45 0x00007fc4534a12a8 in ?? () from /lib/libglib-2.0.so.0
#46 0x00007fc4534a145c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#47 0x00007fc45975f193 in QEventDispatcherGlib::processEvents (this=0x175a6e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#48 0x00007fc45a1c8a4e in QGuiEventDispatcherGlib::processEvents (this=0x805, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#49 0x00007fc459731a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#50 0x00007fc459731dec in QEventLoop::exec (this=0x7fffbabd1bc0, flags=) at kernel/qeventloop.cpp:201
#51 0x00007fc459735ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#52 0x0000000000409598 in _start ()

This bug may be a duplicate of or related to bug 265626.

Possible duplicates by query: bug 271372, bug 269873, bug 265626, bug 245004, bug 242085.

Reported using DrKonqi
Comment 1 Myriam Schweingruber 2011-05-10 02:52:31 UTC
Sorry, but your backtrace is not useful, as you are lacking debugging symbols. If you can reproduce this bug, please check here on how to get a valid backtrace:

http://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports

Since you are using Kubuntu, you will need amarok-dbg and the phonon-dbg packages at least, ideally you should also have kdelibs5-dbg, libqt4-dbg and  libglib2.0-0-dbg. That should cover most of the crashes.
Comment 2 Myriam Schweingruber 2011-06-16 13:53:55 UTC
Closing for lack of feedback. Feel free to reopen if you can reproduce this and provide a valid backtrace with Amarok 2.4.1 or later.