'[amarok] [Bug 364354] New: Amarok stutters and hangs system before crashing'

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List:       amarok-bugs-dist
Subject:    [amarok] [Bug 364354] New: Amarok stutters and hangs system before crashing
From:       Be via KDE Bugzilla <bugzilla_noreply () kde ! org>
Date:       2016-06-15 17:20:35
Message-ID: bug-364354-71684 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=364354

            Bug ID: 364354
           Summary: Amarok stutters and hangs system before crashing
           Product: amarok
           Version: 2.8.0
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: amarok-bugs-dist@kde.org
          Reporter: be.0@gmx.com

Application: amarok (2.8.0)
KDE Platform Version: 4.14.18
Qt Version: 4.8.7
Operating System: Linux 4.4.12-300.rt19.1.fc23.ccrma.x86_64+rt x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
Occasionally, when Amarok is playing and I am away from my computer, it will
stutter playback and the system freezes. Usually I disconnect the power to
forcibly restart my computer, but on this occasion, I disconnected my speaker
and let my computer be for a while. When I came back to my computer, I saw that
Amarok had crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f39a81fc940 (LWP 14530))]

Thread 14 (Thread 0x7f395e0a5700 (LWP 14537)):
#0  0x00007f39a395eeb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f396a1276c2 in my_service_thread_sleep () at
/usr/lib64/mysql/libmysqld.so.18
#2  0x00007f396a1226a8 in ma_checkpoint_background () at
/usr/lib64/mysql/libmysqld.so.18
#3  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f395d8a4700 (LWP 14538)):
#0  0x00007f39a395eeb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18d4 in QWaitCondition::wait(QMutex*, unsigned long)
(time=60000, this=0x55bf8a2fae50) at thread/qwaitcondition_unix.cpp:84
#2  0x00007f39a54c18d4 in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x55bf8a309dd8, time=60000) at
thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a7ba9bff in AbstractDirectoryWatcher::run() () at
/lib64/libamaroklib.so.1
#4  0x00007f39a298e712 in
ThreadWeaver::JobRunHelper::runTheJob(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=this@entry=0x7f395d8a3c50,
th=th@entry=0x55bf8a1ba050, job=job@entry=0x55bf8a309db0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Job.cpp:106
#5  0x00007f39a298e91e in ThreadWeaver::Job::execute(ThreadWeaver::Thread*)
(this=0x55bf8a309db0, th=0x55bf8a1ba050) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Job.cpp:135
#6  0x00007f39a298dfeb in ThreadWeaver::Thread::run() (this=0x55bf8a1ba050) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:108
#7  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8a1ba050) at
thread/qthread_unix.cpp:352
#8  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f395d0a3700 (LWP 14539)):
#0  0x00007f399ea3a719 in g_mutex_lock (mutex=mutex@entry=0x7f39540009a0) at
gthread-posix.c:1338
#1  0x00007f399e9f5110 in g_main_context_acquire (context=0x7f39540009a0) at
gmain.c:3214
#2  0x00007f399e9f6025 in g_main_context_iterate
(context=context@entry=0x7f39540009a0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3790
#3  0x00007f399e9f627c in g_main_context_iteration (context=0x7f39540009a0,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f39a5600e7e in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f39540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f39a55cf131 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f395d0a2c40, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f39a55cf4a5 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f395d0a2c40, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f39a54bea99 in QThread::exec() (this=this@entry=0x55bf8a313f90) at
thread/qthread.cpp:538
#8  0x00007f39a55af203 in QInotifyFileSystemWatcherEngine::run()
(this=0x55bf8a313f90) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8a313f90) at
thread/qthread_unix.cpp:352
#10 0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f394ffff700 (LWP 14540)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8a653450) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8a653450,
previous=0x55bf8c3c0bf0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#10 0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8a653450) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#11 0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8a653450) at
thread/qthread_unix.cpp:352
#12 0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#13 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f394f0c0700 (LWP 14542)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8ac38bf0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#10 0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#11 0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#12 0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#13 0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac38bf0,
previous=0x55bf8c25aaa0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#14 0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8ac38bf0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#15 0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8ac38bf0) at
thread/qthread_unix.cpp:352
#16 0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#17 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f394e8bf700 (LWP 14543)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8ac39830) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac39830, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac39830, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac39830, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac39830, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac39830,
previous=0x55bf8c37c610) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8ac39830) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#10 0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8ac39830) at
thread/qthread_unix.cpp:352
#11 0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#12 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f394e0be700 (LWP 14544)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8ac396d0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8ac396d0,
previous=0x55bf8c302560) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8ac396d0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#6  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8ac396d0) at
thread/qthread_unix.cpp:352
#7  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#8  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f393c95a700 (LWP 14545)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8b0264a0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b0264a0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b0264a0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b0264a0,
previous=0x55bf8c6a3c60) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8b0264a0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#8  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8b0264a0) at
thread/qthread_unix.cpp:352
#9  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#10 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f392ffff700 (LWP 14546)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8b027e40) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b027e40, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b027e40,
previous=0x55bf8c6cd000) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8b027e40) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#7  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8b027e40) at
thread/qthread_unix.cpp:352
#8  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f392f7fe700 (LWP 14547)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x55bf8a311290) at
thread/qwaitcondition_unix.cpp:86
#2  0x00007f39a54c18f6 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x55bf8a311168, mutex=0x55bf8a1b94e0,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f39a298c6ec in
ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*)
(this=0x55bf8a311140, th=0x55bf8b087cc0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f39a298f3f3 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b087cc0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b087cc0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b087cc0, previous=0x0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#7  0x00007f39a298f40c in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*,
ThreadWeaver::Job*) (this=0x55bf8a1b9720, th=0x55bf8b087cc0,
previous=0x55bf8c6bdc90) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x00007f39a298df4f in ThreadWeaver::Thread::run() (this=0x55bf8b087cc0) at
/usr/src/debug/kdelibs-4.14.18/threadweaver/Weaver/Thread.cpp:98
#9  0x00007f39a54c138c in QThreadPrivate::start(void*) (arg=0x55bf8b087cc0) at
thread/qthread_unix.cpp:352
#10 0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f392e77c700 (LWP 14550)):
#0  0x00007f39a395eb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f39a3f5173a in QTWTF::TCMalloc_PageHeap::scavengerThread()
(this=0x7f39a42553a0 <QTWTF::pageheap_memory>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f39a3f51769 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
(context=<optimized out>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f396fedf700 (LWP 14879)):
#0  0x00007f39a4dee999 in syscall () at /lib64/libc.so.6
#1  0x00007f399ea3a87f in g_cond_wait (cond=0x7f387c086bf0,
mutex=0x7f387c086ba8) at gthread-posix.c:1397
#2  0x00007f399321aeed in gst_task_func () at /lib64/libgstreamer-1.0.so.0
#3  0x00007f399ea1d1ce in g_thread_pool_thread_proxy (data=<optimized out>) at
gthreadpool.c:307
#4  0x00007f399ea1c835 in g_thread_proxy (data=0x7f386c1296d0) at gthread.c:778
#5  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f396dedb700 (LWP 14880)):
#0  0x00007f39a4dee999 in syscall () at /lib64/libc.so.6
#1  0x00007f399ea3a87f in g_cond_wait (cond=0x7f3870081890,
mutex=0x7f3870081848) at gthread-posix.c:1397
#2  0x00007f399321aeed in gst_task_func () at /lib64/libgstreamer-1.0.so.0
#3  0x00007f399ea1d1ce in g_thread_pool_thread_proxy (data=<optimized out>) at
gthreadpool.c:307
#4  0x00007f399ea1c835 in g_thread_proxy (data=0x7f38880a0b70) at gthread.c:778
#5  0x00007f39a395960a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f39a4df478d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f39a81fc940 (LWP 14530)):
[KCrash Handler]
#6  0x00007f39a55e3290 in QObject::thread() const (this=0x0) at
kernel/qobject.cpp:1398
#7  0x00007f39a5a94c0e in KDBusConnectionPool::threadConnection() () at
/usr/src/debug/kdelibs-4.14.18/kdecore/kernel/kdbusconnectionpool.cpp:64
#8  0x00007f39a239d022 in emitSignal(QString const&, QVariantList const&)
(signalName=..., args=...) at
/usr/src/debug/kdelibs-4.14.18/kio/kio/kdirnotify.cpp:34
#9  0x00007f39a239d9b5 in OrgKdeKDirNotifyInterface::emitLeftDirectory(QString
const&) (url=...) at /usr/src/debug/kdelibs-4.14.18/kio/kio/kdirnotify.cpp:69
#10 0x00007f39a2383d20 in KDirListerCache::~KDirListerCache() (url=...,
entering=false, this=0x55bf8b2894a0) at
/usr/src/debug/kdelibs-4.14.18/kio/kio/kdirlister_p.h:343
#11 0x00007f39a2383d20 in KDirListerCache::~KDirListerCache()
(this=0x55bf8b2894a0, __in_chrg=<optimized out>) at
/usr/src/debug/kdelibs-4.14.18/kio/kio/kdirlister_p.h:331
#12 0x00007f39a2383d20 in KDirListerCache::~KDirListerCache() (end=...,
begin=...) at /usr/include/QtCore/qalgorithms.h:322
#13 0x00007f39a2383d20 in KDirListerCache::~KDirListerCache() (c=...) at
/usr/include/QtCore/qalgorithms.h:330
#14 0x00007f39a2383d20 in KDirListerCache::~KDirListerCache()
(this=0x55bf8b267ea0, __in_chrg=<optimized out>) at
/usr/src/debug/kdelibs-4.14.18/kio/kio/kdirlister.cpp:79
#15 0x00007f39a2383ec9 in KDirListerCache::~KDirListerCache()
(this=0x55bf8b267ea0, __in_chrg=<optimized out>) at
/usr/src/debug/kdelibs-4.14.18/kio/kio/kdirlister.cpp:87
#16 0x00007f39a4d2b5e8 in __run_exit_handlers () at /lib64/libc.so.6
#17 0x00007f39a4d2b635 in  () at /lib64/libc.so.6
#18 0x00007f39a60a5a48 in qt_xio_errhandler(Display*) () at
kernel/qapplication_x11.cpp:773
#19 0x00007f39a6dc0f50 in KApplication::xioErrhandler(_XDisplay*)
(this=0x7ffc5b876780, dpy=0x55bf89dc4d20) at
/usr/src/debug/kdelibs-4.14.18/kdeui/kernel/kapplication.cpp:419
#20 0x00007f39a74ef43e in _XIOError (dpy=dpy@entry=0x55bf89dc4d20) at
XlibInt.c:1464
#21 0x00007f39a74ecccd in _XEventsQueued (dpy=0x55bf89dc4d20, mode=<optimized
out>) at xcb_io.c:366
#22 0x00007f39a74ce5aa in XFlush (dpy=0x55bf89dc4d20) at Flush.c:39
#23 0x00007f39a60ce382 in QWidgetPrivate::hide_sys()
(this=this@entry=0x55bf8a16eb60) at kernel/qwidget_x11.cpp:2251
#24 0x00007f39a6089594 in QWidgetPrivate::hide_helper() (this=0x55bf8a16eb60)
at kernel/qwidget.cpp:7645
#25 0x00007f39a608c640 in QWidget::setVisible(bool) (this=0x55bf8a16f280,
visible=<optimized out>) at kernel/qwidget.cpp:7828
#26 0x00007f39a608991c in
QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) (this=0x55bf8a16f280)
at ../../src/gui/kernel/qwidget.h:501
#27 0x00007f39a608991c in
QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) (this=0x55bf8a16eb60,
mode=QWidgetPrivate::CloseNoEvent) at kernel/qwidget.cpp:7963
#28 0x00007f39a608cc00 in QWidget::~QWidget() (this=0x55bf8a16f280,
__in_chrg=<optimized out>) at kernel/qwidget.cpp:1619
#29 0x00007f39a7c947fc in MainWindow::~MainWindow() () at
/lib64/libamaroklib.so.1
#30 0x00007f39a7c94979 in MainWindow::~MainWindow() () at
/lib64/libamaroklib.so.1
#31 0x00007f39a7c7969e in App::~App() () at /lib64/libamaroklib.so.1
#32 0x000055bf88a8b003 in main ()

Possible duplicates by query: bug 348323, bug 347402.

Reported using DrKonqi

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