Application: amarok (2.6.0)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-19-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
amarok crash when i listening music and updating a library of songs

The crash can be reproduced some of the time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3c595da780 (LWP 16100))]

Thread 10 (Thread 0x7f3c2a20f700 (LWP 16105)):
#0  __pthread_mutex_lock (mutex=0x7f3c24000aa0) at pthread_mutex_lock.c:54
#1  0x00007f3c509c6c31 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c50989d3d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c50989ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3c568c5c16 in QEventDispatcherGlib::processEvents (this=0x7f3c24000900, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f3c568962bf in QEventLoop::processEvents (this=this@entry=0x7f3c2a20edd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f3c56896548 in QEventLoop::exec (this=0x7f3c2a20edd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f3c56797b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f3c568769af in QInotifyFileSystemWatcherEngine::run (this=0x193a9b0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f3c5679aaec in QThreadPrivate::start (arg=0x193a9b0) at thread/qthread_unix.cpp:338
#10 0x00007f3c5247fe9a in start_thread (arg=0x7f3c2a20f700) at pthread_create.c:308
#11 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f3c23b2b700 (LWP 16106)):
#0  QHash<QString, KSharedPtr<Meta::Track> >::findNode (this=this@entry=0x18b3b68, akey=..., ahp=ahp@entry=0x7f3c23b2aaac) at /usr/include/qt4/QtCore/qhash.h:888
#1  0x00007f3c34b21ef6 in QHash<QString, KSharedPtr<Meta::Track> >::insert (this=this@entry=0x18b3b68, akey=..., avalue=...) at /usr/include/qt4/QtCore/qhash.h:759
#2  0x00007f3c34b199d4 in SqlRegistry::getTrack (this=0x18b3b50, path=...) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:173
#3  0x00007f3c34b0167b in Collections::SqlCollection::trackForUrl (this=0x18e5940, url=...) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:423
#4  0x00007f3c584ad7a1 in CollectionManager::trackForUrl (this=<optimized out>, url=...) at ../../src/core-impl/collections/support/CollectionManager.cpp:457
#5  0x00007f3c584537fc in MetaProxy::Worker::run (this=0x219b330) at ../../src/core-impl/meta/proxy/MetaProxyWorker.cpp:32
#6  0x00007f3c539f4f9a in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f3c23b2adb0, th=th@entry=0x1c56940, job=job@entry=0x219b330) at ../../../threadweaver/Weaver/Job.cpp:106
#7  0x00007f3c539f5111 in ThreadWeaver::Job::execute (this=0x219b330, th=0x1c56940) at ../../../threadweaver/Weaver/Job.cpp:135
#8  0x00007f3c539f476f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f3c23b2ae00, parent=0x1c55910, th=th@entry=0x1c56940) at ../../../threadweaver/Weaver/Thread.cpp:95
#9  0x00007f3c539f482b in ThreadWeaver::Thread::run (this=0x1c56940) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1c56940) at thread/qthread_unix.cpp:338
#11 0x00007f3c5247fe9a in start_thread (arg=0x7f3c23b2b700) at pthread_create.c:308
#12 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f3c22d07700 (LWP 16107)):
#0  0x00007f3c567b6af6 in QHashData::rehash (this=0x7f3c1c00f410, hint=<optimized out>) at tools/qhash.cpp:384
#1  0x00007f3c34af2e70 in QHashData::willGrow (this=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:163
#2  0x00007f3c34b21f80 in QHash<QString, KSharedPtr<Meta::Track> >::insert (this=this@entry=0x18b3b68, akey=..., avalue=...) at /usr/include/qt4/QtCore/qhash.h:761
#3  0x00007f3c34b199d4 in SqlRegistry::getTrack (this=0x18b3b50, path=...) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:173
#4  0x00007f3c34b0167b in Collections::SqlCollection::trackForUrl (this=0x18e5940, url=...) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:423
#5  0x00007f3c584ad7a1 in CollectionManager::trackForUrl (this=<optimized out>, url=...) at ../../src/core-impl/collections/support/CollectionManager.cpp:457
#6  0x00007f3c584537fc in MetaProxy::Worker::run (this=0x2198cb0) at ../../src/core-impl/meta/proxy/MetaProxyWorker.cpp:32
#7  0x00007f3c539f4f9a in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f3c22d06db0, th=th@entry=0x1df2b90, job=job@entry=0x2198cb0) at ../../../threadweaver/Weaver/Job.cpp:106
#8  0x00007f3c539f5111 in ThreadWeaver::Job::execute (this=0x2198cb0, th=0x1df2b90) at ../../../threadweaver/Weaver/Job.cpp:135
#9  0x00007f3c539f476f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f3c22d06e00, parent=0x1c55910, th=th@entry=0x1df2b90) at ../../../threadweaver/Weaver/Thread.cpp:95
#10 0x00007f3c539f482b in ThreadWeaver::Thread::run (this=0x1df2b90) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1df2b90) at thread/qthread_unix.cpp:338
#12 0x00007f3c5247fe9a in start_thread (arg=0x7f3c22d07700) at pthread_create.c:308
#13 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f3c21eed700 (LWP 16108)):
#0  same_key (key0=..., h0=204541013, this=0x7f3c0c03b270) at /usr/include/qt4/QtCore/qhash.h:225
#1  QHash<QString, KSharedPtr<Meta::Track> >::findNode (this=this@entry=0x18b3b68, akey=..., ahp=ahp@entry=0x7f3c21eecaac) at /usr/include/qt4/QtCore/qhash.h:887
#2  0x00007f3c34b21ef6 in QHash<QString, KSharedPtr<Meta::Track> >::insert (this=this@entry=0x18b3b68, akey=..., avalue=...) at /usr/include/qt4/QtCore/qhash.h:759
#3  0x00007f3c34b199d4 in SqlRegistry::getTrack (this=0x18b3b50, path=...) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:173
#4  0x00007f3c34b0167b in Collections::SqlCollection::trackForUrl (this=0x18e5940, url=...) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:423
#5  0x00007f3c584ad7a1 in CollectionManager::trackForUrl (this=<optimized out>, url=...) at ../../src/core-impl/collections/support/CollectionManager.cpp:457
#6  0x00007f3c584537fc in MetaProxy::Worker::run (this=0x219e820) at ../../src/core-impl/meta/proxy/MetaProxyWorker.cpp:32
#7  0x00007f3c539f4f9a in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f3c21eecdb0, th=th@entry=0x1e91950, job=job@entry=0x219e820) at ../../../threadweaver/Weaver/Job.cpp:106
#8  0x00007f3c539f5111 in ThreadWeaver::Job::execute (this=0x219e820, th=0x1e91950) at ../../../threadweaver/Weaver/Job.cpp:135
#9  0x00007f3c539f476f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f3c21eece00, parent=0x1c55910, th=th@entry=0x1e91950) at ../../../threadweaver/Weaver/Thread.cpp:95
#10 0x00007f3c539f482b in ThreadWeaver::Thread::run (this=0x1e91950) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1e91950) at thread/qthread_unix.cpp:338
#12 0x00007f3c5247fe9a in start_thread (arg=0x7f3c21eed700) at pthread_create.c:308
#13 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f3c216ec700 (LWP 16109)):
#0  0x00007f3c567b6af0 in QHashData::rehash (this=0x7f3c1c00f410, hint=<optimized out>) at tools/qhash.cpp:384
#1  0x00007f3c34af2e70 in QHashData::willGrow (this=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:163
#2  0x00007f3c34b21f80 in QHash<QString, KSharedPtr<Meta::Track> >::insert (this=this@entry=0x18b3b68, akey=..., avalue=...) at /usr/include/qt4/QtCore/qhash.h:761
#3  0x00007f3c34b199d4 in SqlRegistry::getTrack (this=0x18b3b50, path=...) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:173
#4  0x00007f3c34b0167b in Collections::SqlCollection::trackForUrl (this=0x18e5940, url=...) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:423
#5  0x00007f3c584ad7a1 in CollectionManager::trackForUrl (this=<optimized out>, url=...) at ../../src/core-impl/collections/support/CollectionManager.cpp:457
#6  0x00007f3c584537fc in MetaProxy::Worker::run (this=0x2199230) at ../../src/core-impl/meta/proxy/MetaProxyWorker.cpp:32
#7  0x00007f3c539f4f9a in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f3c216ebdb0, th=th@entry=0x1e3f1b0, job=job@entry=0x2199230) at ../../../threadweaver/Weaver/Job.cpp:106
#8  0x00007f3c539f5111 in ThreadWeaver::Job::execute (this=0x2199230, th=0x1e3f1b0) at ../../../threadweaver/Weaver/Job.cpp:135
#9  0x00007f3c539f476f in ThreadWeaver::ThreadRunHelper::run (this=this@entry=0x7f3c216ebe00, parent=0x1c55910, th=th@entry=0x1e3f1b0) at ../../../threadweaver/Weaver/Thread.cpp:95
#10 0x00007f3c539f482b in ThreadWeaver::Thread::run (this=0x1e3f1b0) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1e3f1b0) at thread/qthread_unix.cpp:338
#12 0x00007f3c5247fe9a in start_thread (arg=0x7f3c216ec700) at pthread_create.c:308
#13 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f3c13fff700 (LWP 16110)):
#0  0x00007f3c55f2f303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f3c50989d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c50989ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c568c5c16 in QEventDispatcherGlib::processEvents (this=0x7f3c080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3c568962bf in QEventLoop::processEvents (this=this@entry=0x7f3c13ffedd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3c56896548 in QEventLoop::exec (this=0x7f3c13ffedd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3c56797b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3c568769af in QInotifyFileSystemWatcherEngine::run (this=0x1f74c90) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1f74c90) at thread/qthread_unix.cpp:338
#9  0x00007f3c5247fe9a in start_thread (arg=0x7f3c13fff700) at pthread_create.c:308
#10 0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f3c131be700 (LWP 16111)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3c4d5dbb2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f3c4d5dbc39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f3c5247fe9a in start_thread (arg=0x7f3c131be700) at pthread_create.c:308
#4  0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f3c128bd700 (LWP 16112)):
#0  0x00007f3c55f2f303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f3c50989d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3c50989ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3c568c5c16 in QEventDispatcherGlib::processEvents (this=0x7f3c000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3c568962bf in QEventLoop::processEvents (this=this@entry=0x7f3c128bce00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3c56896548 in QEventLoop::exec (this=0x7f3c128bce00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3c56797b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3c5679aaec in QThreadPrivate::start (arg=0x1f43d90) at thread/qthread_unix.cpp:338
#8  0x00007f3c5247fe9a in start_thread (arg=0x7f3c128bd700) at pthread_create.c:308
#9  0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f3c1102c700 (LWP 16115)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3c52a58cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3c52a58d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3c5247fe9a in start_thread (arg=0x7f3c1102c700) at pthread_create.c:308
#4  0x00007f3c55f3acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3c595da780 (LWP 16100)):
[KCrash Handler]
#6  deref (this=0xd5c57a3) at /usr/include/qt4/QtCore/qatomic_x86_64.h:133
#7  ~KSharedPtr (this=0x7f3c14037c48, __in_chrg=<optimized out>) at /usr/include/KDE/../ksharedptr.h:90
#8  ~QHashNode (this=0x7f3c14037c30, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:216
#9  QHash<QString, KSharedPtr<Meta::Track> >::deleteNode2 (node=0x7f3c14037c30) at /usr/include/qt4/QtCore/qhash.h:521
#10 0x00007f3c567b66cb in QHashData::free_helper (this=0x7f3c1c00f410, node_delete=0x7f3c34b1f8e0 <QHash<QString, KSharedPtr<Meta::Track> >::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:275
#11 0x00007f3c34b17c27 in freeData (x=<optimized out>, this=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:570
#12 ~QHash (this=0x18b3b68, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:283
#13 SqlRegistry::~SqlRegistry (this=0x18b3b50, __in_chrg=<optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:60
#14 0x00007f3c34b17c59 in SqlRegistry::~SqlRegistry (this=0x18b3b50, __in_chrg=<optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlRegistry.cpp:63
#15 0x00007f3c34b01388 in Collections::SqlCollection::~SqlCollection (this=0x18e5940, __in_chrg=<optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:229
#16 0x00007f3c34b01419 in Collections::SqlCollection::~SqlCollection (this=0x18e5940, __in_chrg=<optimized out>) at ../../../../../../src/core-impl/collections/db/sql/SqlCollection.cpp:231
#17 0x00007f3c584aed1c in CollectionManager::~CollectionManager (this=0x184ffa0, __in_chrg=<optimized out>) at ../../src/core-impl/collections/support/CollectionManager.cpp:139
#18 0x00007f3c584aef89 in CollectionManager::~CollectionManager (this=0x184ffa0, __in_chrg=<optimized out>) at ../../src/core-impl/collections/support/CollectionManager.cpp:144
#19 0x00007f3c584acdf6 in CollectionManager::destroy () at ../../src/core-impl/collections/support/CollectionManager.cpp:106
#20 0x00007f3c585db6f5 in App::~App (this=0x7fffd6f3d900, __in_chrg=<optimized out>) at ../../src/App.cpp:247
#21 0x0000000000408df9 in main (argc=1, argv=0x7fffd6f3da68) at ../../src/main.cpp:306

This bug may be a duplicate of or related to bug 233726.

Reported using DrKonqi