'[amarok] [Bug 469512] New: Playback stops. Pressing the play button again often results in a SIGSEGV'

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List:       amarok-bugs-dist
Subject:    [amarok] [Bug 469512] New: Playback stops. Pressing the play button again often results in a SIGSEGV
From:       "Mark Post" <bugzilla_noreply () kde ! org>
Date:       2023-05-08 21:55:49
Message-ID: bug-469512-71684 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=469512

            Bug ID: 469512
           Summary: Playback stops. Pressing the play button again often
                    results in a SIGSEGV
    Classification: Applications
           Product: amarok
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Playlist
          Assignee: amarok-bugs-dist@kde.org
          Reporter: markkp@comcast.net
  Target Milestone: kf5

Application: amarok (2.9.71)

Actual version as reported by RPM is
amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64

Qt Version: 5.15.2
Frameworks Version: 5.90.0
Operating System: Linux 5.14.21-150400.24.60-default x86_64
Windowing System: X11
Distribution: "openSUSE Leap 15.4"
DrKonqi: 5.24.4 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
I start Amarok, and click on the play button. I have "shuffle mode" enabled.
Frequently, after playing the first track, playback will stop. If I click on
the play button again, one of three things happen:
1. Nothing, which is then followed by clicking on the play button again.
2. The next randomly selected track plays.
3. Amarok segfaults.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault

[KCrash Handler]
#4  Playlist::FavoredRandomTrackNavigator::planOne (this=0x5563d5caf8e0) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/playlist/navigators/FavoredRandomTrackNavigator.cpp:67
 #5  0x00007f07014d9b6c in
Playlist::NonlinearTrackNavigator::nextItemChooseDonorList
(this=this@entry=0x5563d5caf8e0) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/playlist/navigators/NonlinearTrackNavigator.cpp:239
 #6  0x00007f07014db247 in Playlist::NonlinearTrackNavigator::requestNextTrack
(this=0x5563d5caf8e0) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/playlist/navigators/NonlinearTrackNavigator.cpp:265
 #7  0x00007f0701499f41 in Playlist::Actions::play (this=0x5563d5c74790) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/playlist/PlaylistActions.cpp:181
 #8  0x00007f070178922d in EngineController::play
(this=this@entry=0x7f06d00057b0) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/EngineController.cpp:349
 #9  0x00007f0701789403 in EngineController::playPause (this=0x7f06d00057b0) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/EngineController.cpp:611
 #10 0x00007f06fef7b1c7 in QtPrivate::QSlotObjectBase::call (a=0x7ffca163c740,
r=0x7f06d00057b0, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#11 doActivate<false> (sender=0x5563d57f7c70, signal_index=8,
argv=0x7ffca163c740) at kernel/qobject.cpp:3886
#12 0x00007f06fef74782 in QMetaObject::activate (sender=<optimized out>,
m=m@entry=0x7f0701cbd820 <PlayPauseButton::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffca163c740)
at kernel/qobject.cpp:3946
#13 0x00007f07013b37cf in PlayPauseButton::toggled (this=<optimized out>,
_t1=<optimized out>) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/build/src/amaroklib_autogen/IMAN36LHMA/moc_PlayPauseButton.cpp:141
 #14 0x00007f06fef7b1c7 in QtPrivate::QSlotObjectBase::call (a=0x7ffca163c800,
r=0x5563d57f7c70, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#15 doActivate<false> (sender=0x5563d57f7c70, signal_index=7,
argv=0x7ffca163c800) at kernel/qobject.cpp:3886
#16 0x00007f06fef74782 in QMetaObject::activate
(sender=sender@entry=0x5563d57f7c70, m=m@entry=0x7f0701ce6fa0
<IconButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#17 0x00007f07013b27b0 in IconButton::clicked (this=this@entry=0x5563d57f7c70)
at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/build/src/amaroklib_autogen/IMAN36LHMA/moc_IconButton.cpp:139
 #18 0x00007f0701881d67 in IconButton::mouseReleaseEvent (this=0x5563d57f7c70,
me=<optimized out>) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/widgets/IconButton.cpp:69
 #19 0x00007f06fff2ab48 in QWidget::event (this=0x5563d57f7c70,
event=0x7ffca163cd20) at kernel/qwidget.cpp:9020
#20 0x00007f06ffeea3bc in QApplicationPrivate::notify_helper
(this=this@entry=0x5563d52d0250, receiver=receiver@entry=0x5563d57f7c70,
e=e@entry=0x7ffca163cd20) at kernel/qapplication.cpp:3632
#21 0x00007f06ffef1730 in QApplication::notify (this=<optimized out>,
receiver=0x5563d57f7c70, e=0x7ffca163cd20) at kernel/qapplication.cpp:3076
#22 0x00007f06fef3dc23 in QCoreApplication::notifyInternal2
(receiver=0x5563d57f7c70, event=0x7ffca163cd20) at
kernel/qcoreapplication.cpp:1064
#23 0x00007f06fef3de0e in QCoreApplication::sendSpontaneousEvent
(receiver=receiver@entry=0x5563d57f7c70, event=event@entry=0x7ffca163cd20) at
kernel/qcoreapplication.cpp:1474
#24 0x00007f06ffef071f in QApplicationPrivate::sendMouseEvent
(receiver=receiver@entry=0x5563d57f7c70, event=event@entry=0x7ffca163cd20,
alienWidget=0x5563d57f7c70, nativeWidget=0x5563d53af8b0,
buttonDown=buttonDown@entry=0x7f0700606670 <qt_button_down>,
lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at
kernel/qapplication.cpp:2614
#25 0x00007f06fff4531c in QWidgetWindow::handleMouseEvent
(this=this@entry=0x5563d6438610, event=event@entry=0x7ffca163d180) at
kernel/qwidgetwindow.cpp:683
#26 0x00007f06fff4838d in QWidgetWindow::event (this=0x5563d6438610,
event=0x7ffca163d180) at kernel/qwidgetwindow.cpp:300
#27 0x00007f06ffeea3bc in QApplicationPrivate::notify_helper
(this=this@entry=0x5563d52d0250, receiver=receiver@entry=0x5563d6438610,
e=e@entry=0x7ffca163d180) at kernel/qapplication.cpp:3632
#28 0x00007f06ffef11a0 in QApplication::notify (this=0x7ffca163d6a0,
receiver=0x5563d6438610, e=0x7ffca163d180) at kernel/qapplication.cpp:3156
#29 0x00007f06fef3dc23 in QCoreApplication::notifyInternal2
(receiver=0x5563d6438610, event=0x7ffca163d180) at
kernel/qcoreapplication.cpp:1064
#30 0x00007f06fef3de0e in QCoreApplication::sendSpontaneousEvent
(receiver=receiver@entry=0x5563d6438610, event=event@entry=0x7ffca163d180) at
kernel/qcoreapplication.cpp:1474
#31 0x00007f06ff5970cb in QGuiApplicationPrivate::processMouseEvent
(e=0x5563d83977d0) at kernel/qguiapplication.cpp:2282
#32 0x00007f06ff598675 in QGuiApplicationPrivate::processWindowSystemEvent
(e=e@entry=0x5563d83977d0) at kernel/qguiapplication.cpp:2002
#33 0x00007f06ff57044b in QWindowSystemInterface::sendWindowSystemEvents
(flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1169
#34 0x00007f06d6b40d0a in xcbSourceDispatch (source=<optimized out>) at
qxcbeventdispatcher.cpp:105
#35 0x00007f06ec15782b in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#36 0x00007f06ec157bd0 in ?? () from /usr/lib64/libglib-2.0.so.0
#37 0x00007f06ec157c5c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#38 0x00007f06fefa002c in QEventDispatcherGlib::processEvents
(this=0x5563d5399330, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#39 0x00007f06fef3c48a in QEventLoop::exec (this=this@entry=0x7ffca163d520,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
#40 0x00007f06fef45cc7 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1375
#41 0x00005563d4008075 in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/amarok-2.9.75git.20220102T131246~92aa01de32-bp154.1.19.x86_64/src/main.cpp:395
 [Inferior 1 (process 661) detached]

Possible duplicates by query: bug 332283, bug 260837, bug 249095, bug 247963.

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