Application: amarok (2.4.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic x86_64
Distribution: Ubuntu 11.04

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

In the Collections setup dialog, I deselected ~/Music. Then I clicked "Apply".  Then I selected ~/Music.  "Apply" wasn't enabled.  I deselected ~/Music and clicked "Apply" again.  When I clicked "OK", Amarok crashed.

I did this in a futile attempt to get Bug 17953 (https://bugs.kde.org/show_bug.cgi?id=172953) to go away.  Although the bug is marked RESOLVED/FIXED, it manifested today in my copy of Amarok.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7c087a1840 (LWP 15225))]

Thread 13 (Thread 0x7f7c08741700 (LWP 15230)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7becfeda30 in ?? () from /usr/lib/libvlccore.so.4
#2  0x00007f7c00c7dd8c in start_thread (arg=0x7f7c08741700) at pthread_create.c:304
#3  0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f7bb5537700 (LWP 15233)):
#0  0x00007f7c051b2f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7bff87f104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bff87f639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7c05b10446 in QEventDispatcherGlib::processEvents (this=0x28f26d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7c05ae4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7c05ae4abc in QEventLoop::exec (this=0x7f7bb5536d10, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7c059fb924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f7c05ac6c2f in QInotifyFileSystemWatcherEngine::run (this=0x2c50190) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x2c50190) at thread/qthread_unix.cpp:320
#9  0x00007f7c00c7dd8c in start_thread (arg=0x7f7bb5537700) at pthread_create.c:304
#10 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f7ba74d6700 (LWP 15236)):
#0  0x00007f7c051b2f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7bff87f104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bff87f9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7bf71bfc44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7bff8a63e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba74d6700) at pthread_create.c:304
#6  0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f7ba6cd5700 (LWP 15237)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7c059fe82b in wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7c02c2f0b4 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x34c36c0, th=0x3571050) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7c02c31723 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x3571050) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7c02c3173c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x3571050) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7c02c3173c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x3571050) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f7c02c3053f in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ba6cd4d60, parent=0x34c36c0, th=0x3571050) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f7c02c305cb in ThreadWeaver::Thread::run (this=0x3571050) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x3571050) at thread/qthread_unix.cpp:320
#10 0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba6cd5700) at pthread_create.c:304
#11 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f7ba64d4700 (LWP 15238)):
[KCrash Handler]
#6  0x00007f7bb5c80964 in mysql_real_escape_string () from /usr/lib/kde4/amarok_collection-mysqlecollection.so
#7  0x00007f7bb5c7347c in MySqlStorage::escape (this=0x291c120, text=<value optimized out>) at ../../../../../../../src/core-impl/collections/db/sql/mysql-shared/MySqlStorage.cpp:214
#8  0x00007f7bb57d9f36 in AbstractTrackTableCommitter::escape (this=<value optimized out>, str=<value optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry_p.cpp:189
#9  0x00007f7bb57dadae in TrackTracksTableCommitter::getValues (this=0x7f7ba64d31a0, track=0x7f7b8cd60900) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry_p.cpp:284
#10 0x00007f7bb57dbc46 in AbstractTrackTableCommitter::commit (this=0x7f7ba64d31a0, tracks=<value optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry_p.cpp:67
#11 0x00007f7bb57d4a31 in SqlRegistry::commitDirtyTracks (this=0x2c37c70) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:762
#12 0x00007f7bb57ee6f5 in SqlScanResultProcessor::unblockUpdates (this=0x7f7b9c210c10) at ../../../../../../src/core-impl/collections/db/sql/SqlScanResultProcessor.cpp:89
#13 0x00007f7bb57acd90 in ScanResultProcessor::commit (this=0x7f7b9c210c10) at ../../../../../../src/core-impl/collections/db/ScanResultProcessor.cpp:192
#14 0x00007f7bb57f00ec in SqlScanResultProcessor::commit (this=0x7f7b9c210c10) at ../../../../../../src/core-impl/collections/db/sql/SqlScanResultProcessor.cpp:76
#15 0x00007f7bb57a67c6 in ScannerJob::run (this=0x2f19880) at ../../../../../../src/core-impl/collections/db/ScanManager.cpp:461
#16 0x00007f7c02c30c21 in ThreadWeaver::JobRunHelper::runTheJob (this=0x7f7ba64d3ce0, th=0x7f7bb002e060, job=0x2f19880) at ../../../threadweaver/Weaver/Job.cpp:106
#17 0x00007f7c02c30d4c in ThreadWeaver::Job::execute (this=0x2f19880, th=0x7f7bb002e060) at ../../../threadweaver/Weaver/Job.cpp:135
#18 0x00007f7c02c3050f in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ba64d3d60, parent=0x34c36c0, th=0x7f7bb002e060) at ../../../threadweaver/Weaver/Thread.cpp:95
#19 0x00007f7c02c305cb in ThreadWeaver::Thread::run (this=0x7f7bb002e060) at ../../../threadweaver/Weaver/Thread.cpp:142
#20 0x00007f7c059fe175 in QThreadPrivate::start (arg=0x7f7bb002e060) at thread/qthread_unix.cpp:320
#21 0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba64d4700) at pthread_create.c:304
#22 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#23 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f7ba40b1700 (LWP 15239)):
#0  0x00007f7bff853bac in g_ptr_array_set_size () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7bff87dfb0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bff87ef9d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7bff87f639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7c05b10446 in QEventDispatcherGlib::processEvents (this=0x343dc50, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f7c05ae4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f7c05ae4abc in QEventLoop::exec (this=0x7f7ba40b0d10, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f7c059fb924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007f7c05ac6c2f in QInotifyFileSystemWatcherEngine::run (this=0x35865d0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x35865d0) at thread/qthread_unix.cpp:320
#10 0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba40b1700) at pthread_create.c:304
#11 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f7ba3693700 (LWP 15240)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7c059fe82b in wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7c02c2f0b4 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x34c36c0, th=0x366fa70) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7c02c31723 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x366fa70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7c02c3173c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x366fa70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7c02c3173c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x366fa70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f7c02c3053f in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ba3692d60, parent=0x34c36c0, th=0x366fa70) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f7c02c305cb in ThreadWeaver::Thread::run (this=0x366fa70) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x366fa70) at thread/qthread_unix.cpp:320
#10 0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba3693700) at pthread_create.c:304
#11 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f7ba2c87700 (LWP 15241)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7c059fe82b in wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x356ddd0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7c02c2f0b4 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x34c36c0, th=0x35dbb50) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f7c02c31723 in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x35dbb50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f7c02c3173c in ThreadWeaver::WorkingHardState::applyForWork (this=0x3498c00, th=0x35dbb50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7c02c3053f in ThreadWeaver::ThreadRunHelper::run (this=0x7f7ba2c86d60, parent=0x34c36c0, th=0x35dbb50) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f7c02c305cb in ThreadWeaver::Thread::run (this=0x35dbb50) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x35dbb50) at thread/qthread_unix.cpp:320
#9  0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba2c87700) at pthread_create.c:304
#10 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f7ba1e4d700 (LWP 15242)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7bfc013832 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007f7c00c7dd8c in start_thread (arg=0x7f7ba1e4d700) at pthread_create.c:304
#3  0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f7b96576700 (LWP 15245)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7c015792a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f7c01892180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f7c015792d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f7c018a0254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f7c00c7dd8c in start_thread (arg=0x7f7b96576700) at pthread_create.c:304
#4  0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f7b9186e700 (LWP 15273)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f7c059fe82b in wait (this=<value optimized out>, mutex=0x4945718, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x4945718, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f7c0699e7d4 in QFileInfoGatherer::run (this=0x4945708) at dialogs/qfileinfogatherer.cpp:214
#4  0x00007f7c059fe175 in QThreadPrivate::start (arg=0x4945708) at thread/qthread_unix.cpp:320
#5  0x00007f7c00c7dd8c in start_thread (arg=0x7f7b9186e700) at pthread_create.c:304
#6  0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7b9106d700 (LWP 15276)):
#0  0x00007fffa7dff83e in clock_gettime ()
#1  0x00007f7bfe0b2146 in clock_gettime (clock_id=1, tp=0x7f7b9106ca70) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f7c05a4f304 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f7c05b10e3d in QTimerInfoList::updateCurrentTime (this=0x7f7bb008e1b0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f7c05b111a5 in QTimerInfoList::timerWait (this=0x7f7bb008e1b0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f7c05b0fc2c in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7f7b9106cb8c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f7c05b0fcd5 in timerSourcePrepare (source=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f7bff87e0a2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f7bff87ef9d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f7bff87f639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7c05b10446 in QEventDispatcherGlib::processEvents (this=0x7f7b9c0423f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007f7c05ae4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f7c05ae4abc in QEventLoop::exec (this=0x7f7b9106cd10, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007f7c059fb924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#15 0x00007f7c05ac6c2f in QInotifyFileSystemWatcherEngine::run (this=0x4941a10) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f7c059fe175 in QThreadPrivate::start (arg=0x4941a10) at thread/qthread_unix.cpp:320
#17 0x00007f7c00c7dd8c in start_thread (arg=0x7f7b9106d700) at pthread_create.c:304
#18 0x00007f7c051c004d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7c087a1840 (LWP 15225)):
#0  0x00007f7c051b2f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7bfdc95512 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f7bfdc95a5f in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7bfdc95ae4 in xcb_writev () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f7c049bd2a7 in _XSend () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007f7c049bd7fb in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#6  0x00007f7c049a24f3 in XGetSelectionOwner () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007f7c0652c190 in QClipboard::event (this=0x2380560, e=<value optimized out>) at kernel/qclipboard_x11.cpp:922
#8  0x00007f7c064a49f4 in QApplicationPrivate::notify_helper (this=0x2385c30, receiver=0x2380560, e=0x7fffa7dedd50) at kernel/qapplication.cpp:4462
#9  0x00007f7c064a93ba in QApplication::notify (this=<value optimized out>, receiver=0x2380560, e=0x7fffa7dedd50) at kernel/qapplication.cpp:4341
#10 0x00007f7c05ae549c in QCoreApplication::notifyInternal (this=0x7fffa7dedee0, receiver=0x2380560, event=0x7fffa7dedd50) at kernel/qcoreapplication.cpp:731
#11 0x00007f7c064adbeb in sendEvent (this=0x7fffa7dedee0, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#12 QApplication::~QApplication (this=0x7fffa7dedee0, __in_chrg=<value optimized out>) at kernel/qapplication.cpp:1088
#13 0x00007f7c0770ca06 in App::~App (this=0x7fffa7dedee0, __in_chrg=<value optimized out>) at ../../src/App.cpp:228
#14 0x0000000000409c5f in main (argc=<value optimized out>, argv=<value optimized out>) at ../../src/main.cpp:266

Reported using DrKonqi