Application: amarok (2.9.0)
KDE Platform Version: 4.14.38 (Compiled from sources)
Qt Version: 4.8.7
Operating System: Linux 4.15.0-55-generic x86_64
Distribution: Ubuntu 18.04.2 LTS

-- Information about the crash:
Amarok crashed by system starting.

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
[Current thread is 1 (Thread 0x7fd4f2febb80 (LWP 2295))]

Thread 31 (Thread 0x7fd4c9409700 (LWP 2709)):
#0  0x00007fd4efbebbf9 in __GI___poll (fds=0x7fd4c4004360, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd4e77a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4e77a96dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4f040c20e in QEventDispatcherGlib::processEvents (this=0x7fd4c4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#4  0x00007fd4f03da12f in QEventLoop::processEvents (this=this@entry=0x7fd4c94089e0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd4f03da495 in QEventLoop::exec (this=this@entry=0x7fd4c94089e0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fd4f02c9549 in QThread::exec (this=this@entry=0x7fd468003a90) at thread/qthread.cpp:538
#7  0x00007fd4f03ba1c3 in QInotifyFileSystemWatcherEngine::run (this=0x7fd468003a90) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fd4f02cbe3c in QThreadPrivate::start (arg=0x7fd468003a90) at thread/qthread_unix.cpp:352
#9  0x00007fd4ee2786db in start_thread (arg=0x7fd4c9409700) at pthread_create.c:463
#10 0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7fd475ffb700 (LWP 2475)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fd4f02ca672 in _q_futex (val2=0, addr2=0x0, timeout=0x0, val=2, op=0, addr=0x558bedd3a0b0) at thread/qmutex_unix.cpp:99
#2  QMutexPrivate::wait (this=this@entry=0x558bedd3a0b0, timeout=timeout@entry=-1) at thread/qmutex_unix.cpp:113
#3  0x00007fd4f02c6a5d in QMutex::lock (this=this@entry=0x558bed861350) at thread/qmutex.cpp:164
#4  0x00007fd4a6addf58 in QMutex::lockInline (this=0x558bed861350) at /usr/include/qt4/QtCore/qmutex.h:188
#5  QMutexLocker::QMutexLocker (m=0x558bed861350, this=<synthetic pointer>) at /usr/include/qt4/QtCore/qmutex.h:109
#6  MySqlStorage::query (this=0x558bed861340, statement=...) at ./src/core-impl/storage/sql/mysql-shared/MySqlStorage.cpp:106
#7  0x00007fd4f2821f08 in Collections::ServiceSqlCollection::query (this=<optimized out>, statement=...) at ./src/services/ServiceSqlCollection.cpp:62
#8  0x00007fd4f2828cbd in Collections::ServiceSqlQueryMaker::runQuery (query=..., this=<optimized out>) at ./src/services/ServiceSqlQueryMaker.cpp:558
#9  ServiceSqlWorkerThread::run (this=0x558bee8ae630) at ./src/services/ServiceSqlQueryMaker.cpp:55
#10 0x00007fd4eb2a7c8c in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7fd475ffa9f0, th=th@entry=0x558bee8aeb30, job=job@entry=0x558bee8ae630) at ./threadweaver/Weaver/Job.cpp:106
#11 0x00007fd4eb2a7ea5 in ThreadWeaver::Job::execute (this=0x558bee8ae630, th=0x558bee8aeb30) at ./threadweaver/Weaver/Job.cpp:135
#12 0x00007fd4eb2a7533 in ThreadWeaver::Thread::run (this=0x558bee8aeb30) at ./threadweaver/Weaver/Thread.cpp:108
#13 0x00007fd4f02cbe3c in QThreadPrivate::start (arg=0x558bee8aeb30) at thread/qthread_unix.cpp:352
#14 0x00007fd4ee2786db in start_thread (arg=0x7fd475ffb700) at pthread_create.c:463
#15 0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7fd4767fc700 (LWP 2474)):
[KCrash Handler]
#6  __strnlen_sse2 () at ../sysdeps/x86_64/multiarch/../strlen.S:117
#7  0x00007fd4a6b04a78 in process_str_arg () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#8  0x00007fd4a6b055bb in my_vsnprintf_ex () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#9  0x00007fd4a6b0d199 in my_printf_error () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#10 0x00007fd4a6d0487a in Group_check::check_query(THD*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#11 0x00007fd4a6bd6760 in st_select_lex::check_only_full_group_by(THD*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#12 0x00007fd4a6bd78c5 in st_select_lex::apply_local_transforms(THD*, bool) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#13 0x00007fd4a6bd8979 in st_select_lex::prepare(THD*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#14 0x00007fd4a6bdd4d2 in handle_query(THD*, LEX*, Query_result*, unsigned long long, unsigned long long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#15 0x00007fd4a6abb6dd in execute_sqlcom_select(THD*, TABLE_LIST*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#16 0x00007fd4a6baf0b6 in mysql_execute_command(THD*, bool) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#17 0x00007fd4a6bb0c1d in mysql_parse(THD*, Parser_state*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#18 0x00007fd4a6bb1b40 in dispatch_command(THD*, COM_DATA const*, enum_server_command) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#19 0x00007fd4a6b45c80 in emb_advanced_command () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#20 0x00007fd4a6ae48e7 in mysql_send_query () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#21 0x00007fd4a6ae4951 in mysql_real_query () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#22 0x00007fd4a6addd96 in MySqlStorage::query (this=0x558bed861340, statement=...) at ./src/core-impl/storage/sql/mysql-shared/MySqlStorage.cpp:115
#23 0x00007fd4f2821f08 in Collections::ServiceSqlCollection::query (this=<optimized out>, statement=...) at ./src/services/ServiceSqlCollection.cpp:62
#24 0x00007fd4f2828cbd in Collections::ServiceSqlQueryMaker::runQuery (query=..., this=<optimized out>) at ./src/services/ServiceSqlQueryMaker.cpp:558
#25 ServiceSqlWorkerThread::run (this=0x558bee7922d0) at ./src/services/ServiceSqlQueryMaker.cpp:55
#26 0x00007fd4eb2a7c8c in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7fd4767fb9f0, th=th@entry=0x558bee709d60, job=job@entry=0x558bee7922d0) at ./threadweaver/Weaver/Job.cpp:106
#27 0x00007fd4eb2a7ea5 in ThreadWeaver::Job::execute (this=0x558bee7922d0, th=0x558bee709d60) at ./threadweaver/Weaver/Job.cpp:135
#28 0x00007fd4eb2a7533 in ThreadWeaver::Thread::run (this=0x558bee709d60) at ./threadweaver/Weaver/Thread.cpp:108
#29 0x00007fd4f02cbe3c in QThreadPrivate::start (arg=0x558bee709d60) at thread/qthread_unix.cpp:352
#30 0x00007fd4ee2786db in start_thread (arg=0x7fd4767fc700) at pthread_create.c:463
#31 0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fd476ffd700 (LWP 2470)):
#0  0x00007fd4efbebbf9 in __GI___poll (fds=0x7fd45c003f00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd4e77a95c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4e77a96dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4f040c22e in QEventDispatcherGlib::processEvents (this=0x7fd45c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007fd4f03da12f in QEventLoop::processEvents (this=this@entry=0x7fd476ffc9e0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd4f03da495 in QEventLoop::exec (this=this@entry=0x7fd476ffc9e0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fd4f02c9549 in QThread::exec (this=this@entry=0x558bee652db0) at thread/qthread.cpp:538
#7  0x00007fd4f03ba1c3 in QInotifyFileSystemWatcherEngine::run (this=0x558bee652db0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fd4f02cbe3c in QThreadPrivate::start (arg=0x558bee652db0) at thread/qthread_unix.cpp:352
#9  0x00007fd4ee2786db in start_thread (arg=0x7fd476ffd700) at pthread_create.c:463
#10 0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fd4777fe700 (LWP 2469)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd4777fd840, expected=0, futex_word=0x558bee64c4b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd4777fd840, mutex=0x558bee64c460, cond=0x558bee64c488) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bee64c488, mutex=0x558bee64c460, abstime=0x7fd4777fd840) at pthread_cond_wait.c:667
#3  0x00007fd4f02cc384 in QWaitConditionPrivate::wait (time=60000, this=0x558bee64c460) at thread/qwaitcondition_unix.cpp:84
#4  QWaitCondition::wait (this=this@entry=0x558bee6071c0, mutex=mutex@entry=0x558bee6071b8, time=time@entry=60000) at thread/qwaitcondition_unix.cpp:158
#5  0x00007fd4f28e057f in AbstractDirectoryWatcher::run (this=0x558bee607190) at ./src/scanner/AbstractDirectoryWatcher.cpp:65
#6  0x00007fd4eb2a7c8c in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7fd4777fd9f0, th=th@entry=0x558bee63ac20, job=job@entry=0x558bee607190) at ./threadweaver/Weaver/Job.cpp:106
#7  0x00007fd4eb2a7ea5 in ThreadWeaver::Job::execute (this=0x558bee607190, th=0x558bee63ac20) at ./threadweaver/Weaver/Job.cpp:135
#8  0x00007fd4eb2a7533 in ThreadWeaver::Thread::run (this=0x558bee63ac20) at ./threadweaver/Weaver/Thread.cpp:108
#9  0x00007fd4f02cbe3c in QThreadPrivate::start (arg=0x558bee63ac20) at thread/qthread_unix.cpp:352
#10 0x00007fd4ee2786db in start_thread (arg=0x7fd4777fe700) at pthread_create.c:463
#11 0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fd477fff700 (LWP 2467)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede28958) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede28908, cond=0x558bede28930) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede28930, mutex=0x558bede28908) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a7441a9b in buf_resize_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd477fff700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fd488ff9700 (LWP 2466)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd488ff87a0, expected=0, futex_word=0x558bee5d8fe8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd488ff87a0, mutex=0x558bee5d8f98, cond=0x558bee5d8fc0) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bee5d8fc0, mutex=0x558bee5d8f98, abstime=0x7fd488ff87a0) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a73db808 in ib_wqueue_timedwait(ib_wqueue_t*, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4a74f0ee3 in fts_optimize_thread(void*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#7  0x00007fd4ee2786db in start_thread (arg=0x7fd488ff9700) at pthread_create.c:463
#8  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fd492606700 (LWP 2465)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd492605920, expected=0, futex_word=0x558bee59f358) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd492605920, mutex=0x558bee59f308, cond=0x558bee59f330) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bee59f330, mutex=0x558bee59f308, abstime=0x7fd492605920) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a74a6456 in dict_stats_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd492606700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fd491e05700 (LWP 2464)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede28838) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede287e8, cond=0x558bede28810) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede28810, mutex=0x558bede287e8) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a744da0a in buf_dump_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd491e05700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fd4897fa700 (LWP 2463)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede28568) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede28518, cond=0x558bede28540) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede28540, mutex=0x558bede28518) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a7374216 in srv_worker_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd4897fa700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fd489ffb700 (LWP 2462)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede285f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede285a8, cond=0x558bede285d0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede285d0, mutex=0x558bede285a8) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a7374216 in srv_worker_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd489ffb700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fd48a7fc700 (LWP 2460)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede28688) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede28638, cond=0x558bede28660) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede28660, mutex=0x558bede28638) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a7374216 in srv_worker_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd48a7fc700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fd48affd700 (LWP 2459)):
#0  0x00007fd4ee27e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558bede284d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558bede28488, cond=0x558bede284b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558bede284b0, mutex=0x558bede28488) at pthread_cond_wait.c:655
#3  0x00007fd4a72b9510 in os_event::wait_low(long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a7376510 in srv_purge_coordinator_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4ee2786db in start_thread (arg=0x7fd48affd700) at pthread_create.c:463
#6  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fd48b7fe700 (LWP 2458)):
#0  0x00007fd4efbbb9d0 in __GI___nanosleep (requested_time=0x7fd48b7fd9c0, remaining=0x0) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007fd4a72c9d8f in os_thread_sleep(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a7378afb in srv_master_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4ee2786db in start_thread (arg=0x7fd48b7fe700) at pthread_create.c:463
#4  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fd48bfff700 (LWP 2457)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd48bffe9b0, expected=0, futex_word=0x558bede287a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd48bffe9b0, mutex=0x558bede28758, cond=0x558bede28780) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bede28780, mutex=0x558bede28758, abstime=0x7fd48bffe9b0) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a7373275 in srv_monitor_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd48bfff700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fd490e03700 (LWP 2456)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd490e02800, expected=0, futex_word=0x558bede28718) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd490e02800, mutex=0x558bede286c8, cond=0x558bede286f0) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bede286f0, mutex=0x558bede286c8, abstime=0x7fd490e02800) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a73773b2 in srv_error_monitor_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd490e03700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fd491604700 (LWP 2455)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd491603910, expected=0, futex_word=0x558bee57b2f8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd491603910, mutex=0x558bee57b2a8, cond=0x558bee57b2d0) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bee57b2d0, mutex=0x558bee57b2a8, abstime=0x7fd491603910) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a729733a in lock_wait_timeout_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd491604700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fd49300c700 (LWP 2447)):
#0  0x00007fd4ee27ef85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fd49300b760, expected=0, futex_word=0x558bede288cc) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0x7fd49300b760, mutex=0x558bede28878, cond=0x558bede288a0) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0x558bede288a0, mutex=0x558bede28878, abstime=0x7fd49300b760) at pthread_cond_wait.c:667
#3  0x00007fd4a72b93e2 in os_event::timed_wait(timespec const*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a72b9601 in os_event::wait_time_low(unsigned long, long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a74577a9 in buf_flush_page_cleaner_coordinator () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd49300c700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fd49380d700 (LWP 2446)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd49380d700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fd49400e700 (LWP 2445)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd49400e700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fd49480f700 (LWP 2444)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd49480f700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fd495010700 (LWP 2443)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd495010700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fd495811700 (LWP 2442)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd495811700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fd496012700 (LWP 2441)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd496012700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fd496813700 (LWP 2440)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd496813700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fd497014700 (LWP 2439)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd497014700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd497815700 (LWP 2438)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd497815700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd498016700 (LWP 2437)):
#0  0x00007fd4bd2a463a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00007fd4a72c04c1 in LinuxAIOHandler::collect() () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4a72c0ed2 in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#3  0x00007fd4a72c83fd in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#4  0x00007fd4a74af8ef in fil_aio_wait(unsigned long) () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#5  0x00007fd4a737a2f8 in io_handler_thread () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#6  0x00007fd4ee2786db in start_thread (arg=0x7fd498016700) at pthread_create.c:463
#7  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd4a450a700 (LWP 2436)):
#0  0x00007fd4efb1726c in __GI___sigtimedwait (set=<optimized out>, info=0x7fd4a4509a00, timeout=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:42
#1  0x00007fd4a6cac0bb in timer_notify_thread_func () from /usr/lib/kde4/amarok_storage-mysqlestorage.so
#2  0x00007fd4ee2786db in start_thread (arg=0x7fd4a450a700) at pthread_create.c:463
#3  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd4bffff700 (LWP 2432)):
#0  0x00007fd4efbe70b4 in __GI___libc_read (fd=16, buf=0x7fd4bfffe85e, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fd4da3b7021 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007fd4e67cca2e in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fd4e67cd4a0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fd4e67cd560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fd4e67db3c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fd4da3e6318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fd4ee2786db in start_thread (arg=0x7fd4bffff700) at pthread_create.c:463
#8  0x00007fd4efbf888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd4f2febb80 (LWP 2295)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fd4f02ca672 in _q_futex (val2=0, addr2=0x0, timeout=0x0, val=2, op=0, addr=0x558bedd3a0b0) at thread/qmutex_unix.cpp:99
#2  QMutexPrivate::wait (this=this@entry=0x558bedd3a0b0, timeout=timeout@entry=-1) at thread/qmutex_unix.cpp:113
#3  0x00007fd4f02c6a5d in QMutex::lock (this=this@entry=0x558bed861350) at thread/qmutex.cpp:164
#4  0x00007fd4a6adc8ac in QMutex::lockInline (this=0x558bed861350) at /usr/include/qt4/QtCore/qmutex.h:188
#5  QMutexLocker::QMutexLocker (m=0x558bed861350, this=<synthetic pointer>) at /usr/include/qt4/QtCore/qmutex.h:109
#6  MySqlStorage::escape (this=0x558bed861340, text=...) at ./src/core-impl/storage/sql/mysql-shared/MySqlStorage.cpp:203
#7  0x00007fd4f2973325 in BookmarkModel::checkTables (this=this@entry=0x558bee8ed9a0) at ./src/amarokurls/BookmarkModel.cpp:471
#8  0x00007fd4f29739c4 in BookmarkModel::BookmarkModel (this=0x558bee8ed9a0) at ./src/amarokurls/BookmarkModel.cpp:52
#9  0x00007fd4f2973adb in BookmarkModel::instance () at ./src/amarokurls/BookmarkModel.cpp:43
#10 0x00007fd4f29624d4 in AmarokUrlHandler::AmarokUrlHandler (this=0x558bee8ed8c0) at ./src/amarokurls/AmarokUrlHandler.cpp:58
#11 0x00007fd4f296269b in The::amarokUrlHandler () at ./src/amarokurls/AmarokUrlHandler.cpp:43
#12 0x00007fd4a519f166 in MagnatuneStore::polish (this=0x558bee92a6c0) at ./src/services/magnatune/MagnatuneStore.cpp:509
#13 0x00007fd4f270efa6 in BrowserCategoryList::addCategory (this=0x558bee64e660, category=0x558bee92a6c0) at ./src/browsers/BrowserCategoryList.cpp:153
#14 0x00007fd4f2820f98 in ServicePluginManager::slotNewService (this=<optimized out>, newService=0x558bee92a6c0) at ./src/services/ServicePluginManager.cpp:107
#15 0x00007fd4f282152c in ServicePluginManager::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0x7fff927ab990, _c=<optimized out>) at ./obj-x86_64-linux-gnu/src/ServicePluginManager.moc:70
#16 0x00007fd4f03eff70 in QMetaObject::activate (sender=sender@entry=0x558bedd6daf0, m=m@entry=0x7fd4f2e1a6a0 <ServiceFactory::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff927ab990) at kernel/qobject.cpp:3567
#17 0x00007fd4f2814cff in ServiceFactory::newService (this=this@entry=0x558bedd6daf0, _t1=<optimized out>, _t1@entry=0x558bee92a6c0) at ./obj-x86_64-linux-gnu/src/ServiceBase.moc:115
#18 0x00007fd4a519d77b in MagnatuneServiceFactory::init (this=0x558bedd6daf0) at ./src/services/magnatune/MagnatuneStore.cpp:74
#19 0x00007fd4f29edc30 in Plugins::PluginManager::checkPluginEnabledStates (this=this@entry=0x558bed78b290) at ./src/PluginManager.cpp:179
#20 0x00007fd4f29ee695 in Plugins::PluginManager::init (this=this@entry=0x558bed78b290) at ./src/PluginManager.cpp:91
#21 0x00007fd4f29ee7c6 in Plugins::PluginManager::PluginManager (this=0x558bed78b290, parent=<optimized out>) at ./src/PluginManager.cpp:71
#22 0x00007fd4f29ee8d5 in Plugins::PluginManager::instance () at ./src/PluginManager.cpp:50
#23 0x00007fd4f29de2d7 in The::pluginManager () at ./src/PluginManager.h:123
#24 MainWindow::MainWindow (this=0x558bedc7d250) at ./src/MainWindow.cpp:148
#25 0x00007fd4f29c4f87 in App::continueInit (this=this@entry=0x7fff927abe60) at ./src/App.cpp:445
#26 0x00007fd4f29c63ac in App::App (this=0x7fff927abe60) at ./src/App.cpp:173
#27 0x0000558bed38ada3 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:327

Reported using DrKonqi