Bug 489327 - dialog crashes when display resolution changed
Summary: dialog crashes when display resolution changed
Status: RESOLVED WORKSFORME
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_kscreen (show other bugs)
Version: 5.27.11
Platform: FreeBSD Ports FreeBSD
: NOR crash
Target Milestone: ---
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2024-06-27 16:50 UTC by petargreat
Modified: 2024-07-10 20:09 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

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Description petargreat 2024-06-27 16:50:09 UTC 
Application: systemsettings (5.27.11)

Qt Version: 5.15.14
Frameworks Version: 5.116.0
Operating System: FreeBSD 15.0-CURRENT amd64
Windowing System: X11
Distribution (Platform): FreeBSD Ports
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
Just tried to change resolution and it crashes after hitting apply button. I had two windows with terminal open. kde5 over freebsd 15.0 currnet

The crash can be reproduced sometimes.

-- Backtrace:
Application: System Settings (systemsettings), signal: Bus error

(lldb) process attach --pid 92675
Process 92675 stopped
* thread #1, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af998 libsys.so.7`__sys_wait4 + 8
libsys.so.7`__sys_wait4:
->  0x8547af998 <+8>:  syscall 
    0x8547af99a <+10>: jb     0x8547ac4b8
    0x8547af9a0 <+16>: retq   
    0x8547af9a1:       int3   
  thread #2, name = 'llvmpipe-0', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #3, name = 'llvmpipe-1', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #4, name = 'llvmpipe-2', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #5, name = 'llvmpipe-3', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #6, name = 'llvmpipe-4', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #7, name = 'llvmpipe-5', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #8, name = 'llvmpipe-6', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #9, name = 'llvmpipe-7', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #10, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #11, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #12, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #13, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #14, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #15, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #16, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #17, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
libsys.so.7`_umtx_op_err:
->  0x8547afa1c <+12>: retq   
    0x8547afa1d:       int3   
    0x8547afa1e:       int3   
    0x8547afa1f:       int3   
  thread #18, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af7ba libsys.so.7`__sys_read + 10
libsys.so.7`__sys_read:
->  0x8547af7ba <+10>: jb     0x8547ac4b8
    0x8547af7c0 <+16>: retq   
    0x8547af7c1:       int3   
    0x8547af7c2:       int3   
  thread #19, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af67a libsys.so.7`__sys_kevent + 10
libsys.so.7`__sys_kevent:
->  0x8547af67a <+10>: jb     0x8547ac4b8
    0x8547af680 <+16>: retq   
    0x8547af681:       int3   
    0x8547af682:       int3   
  thread #20, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af7ba libsys.so.7`__sys_read + 10
libsys.so.7`__sys_read:
->  0x8547af7ba <+10>: jb     0x8547ac4b8
    0x8547af7c0 <+16>: retq   
    0x8547af7c1:       int3   
    0x8547af7c2:       int3   
  thread #21, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af73a libsys.so.7`__sys_poll + 10
libsys.so.7`__sys_poll:
->  0x8547af73a <+10>: jb     0x8547ac4b8
    0x8547af740 <+16>: retq   
    0x8547af741:       int3   
    0x8547af742:       int3   
  thread #22, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af73a libsys.so.7`__sys_poll + 10
libsys.so.7`__sys_poll:
->  0x8547af73a <+10>: jb     0x8547ac4b8
    0x8547af740 <+16>: retq   
    0x8547af741:       int3   
    0x8547af742:       int3
Executable module set to "/usr/local/bin/systemsettings".
Architecture set to: x86_64-unknown-freebsd15.0.
(lldb) settings set term-width 200
(lldb) thread info
thread #1: tid = 101268, 0x00000008547af998 libsys.so.7`__sys_wait4 + 8, name = 'systemsettings', stop reason = signal SIGSTOP

(lldb) bt all
* thread #1, name = 'systemsettings', stop reason = signal SIGSTOP
  * frame #0: 0x00000008547af998 libsys.so.7`__sys_wait4 + 8
    frame #1: 0x0000000848a1ca8c libthr.so.3`___lldb_unnamed_symbol731 + 60
    frame #2: 0x000000082976031c libKF5Crash.so.5`___lldb_unnamed_symbol229 + 332
    frame #3: 0x000000082975fdeb libKF5Crash.so.5`KCrash::defaultCrashHandler(int) + 1147
    frame #4: 0x0000000848a1a4bc libthr.so.3`___lldb_unnamed_symbol688 + 204
    frame #5: 0x0000000848a19a7b libthr.so.3`___lldb_unnamed_symbol669 + 315
    frame #6: 0x00000008216862d3
    frame #7: 0x00000008dfbd112d kcm_kscreen.so`___lldb_unnamed_symbol846 + 493
    frame #8: 0x000000083e1b6818 libQt5QmlModels.so.5`___lldb_unnamed_symbol1688 + 120
    frame #9: 0x000000083e1b418b libQt5QmlModels.so.5`___lldb_unnamed_symbol1638 + 283
    frame #10: 0x000000083eeae612 libQt5Qml.so.5`QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) + 1170
    frame #11: 0x000000083eda7542 libQt5Qml.so.5`QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) + 3362
    frame #12: 0x000000083eda8615 libQt5Qml.so.5`QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) + 613
    frame #13: 0x000000083ed7b794 libQt5Qml.so.5`QV4::Object::virtualResolveLookupSetter(QV4::Object*, QV4::ExecutionEngine*, QV4::Lookup*, QV4::Value const&) + 340
    frame #14: 0x000000083edc4eb1 libQt5Qml.so.5`___lldb_unnamed_symbol7812 + 3313
    frame #15: 0x000000083edc40fd libQt5Qml.so.5`___lldb_unnamed_symbol7811 + 237
    frame #16: 0x000000083ed6865f libQt5Qml.so.5`QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) + 463
    frame #17: 0x000000083ef04a0f libQt5Qml.so.5`QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) + 559
    frame #18: 0x000000083eebe780 libQt5Qml.so.5`QQmlBoundSignalExpression::evaluate(void**) + 992
    frame #19: 0x000000083eebee52 libQt5Qml.so.5`___lldb_unnamed_symbol10232 + 434
    frame #20: 0x000000083eeeb479 libQt5Qml.so.5`QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) + 569
    frame #21: 0x000000083985dcd7 libQt5Core.so.5`___lldb_unnamed_symbol9755 + 135
    frame #22: 0x000000085943789c libQt5QuickTemplates2.so.5`QQuickComboBox::activated(int) + 60
    frame #23: 0x00000008593b8a1b libQt5QuickTemplates2.so.5`___lldb_unnamed_symbol5119 + 139
    frame #24: 0x000000083985e080 libQt5Core.so.5`___lldb_unnamed_symbol9755 + 1072
    frame #25: 0x00000008593a80b8 libQt5QuickTemplates2.so.5`QQuickAbstractButtonPrivate::handleRelease(QPointF const&) + 344
    frame #26: 0x00000008593c9e8a libQt5QuickTemplates2.so.5`QQuickControl::mouseReleaseEvent(QMouseEvent*) + 26
    frame #27: 0x0000000840b2c3b3 libQt5Quick.so.5`QQuickItem::event(QEvent*) + 403
    frame #28: 0x000000083489a743 libQt5Widgets.so.5`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 259
    frame #29: 0x000000083489bafe libQt5Widgets.so.5`QApplication::notify(QObject*, QEvent*) + 526
    frame #30: 0x0000000839828f41 libQt5Core.so.5`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 177
    frame #31: 0x0000000840b46693 libQt5Quick.so.5`QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) + 787
    frame #32: 0x0000000840b47fc8 libQt5Quick.so.5`QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) + 104
    frame #33: 0x0000000840b48df5 libQt5Quick.so.5`QQuickWindowPrivate::handleMouseEvent(QMouseEvent*) + 1509
    frame #34: 0x00000008353dc19e libQt5Gui.so.5`QWindow::event(QEvent*) + 478
    frame #35: 0x0000000840b43e49 libQt5Quick.so.5`QQuickWindow::event(QEvent*) + 233
    frame #36: 0x000000083489a743 libQt5Widgets.so.5`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 259
    frame #37: 0x000000083489bafe libQt5Widgets.so.5`QApplication::notify(QObject*, QEvent*) + 526
    frame #38: 0x0000000839828f41 libQt5Core.so.5`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 177
    frame #39: 0x000000083cc1e04b libQt5QuickWidgets.so.5`QQuickWidget::mouseReleaseEvent(QMouseEvent*) + 315
    frame #40: 0x00000008348d420d libQt5Widgets.so.5`QWidget::event(QEvent*) + 1677
    frame #41: 0x000000083cc1e4d8 libQt5QuickWidgets.so.5`QQuickWidget::event(QEvent*) + 792
    frame #42: 0x000000083489a743 libQt5Widgets.so.5`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 259
    frame #43: 0x000000083489d63e libQt5Widgets.so.5`QApplication::notify(QObject*, QEvent*) + 7502
    frame #44: 0x0000000839828f41 libQt5Core.so.5`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 177
    frame #45: 0x000000083489b07c libQt5Widgets.so.5`QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) + 828
    frame #46: 0x00000008348f0f9f libQt5Widgets.so.5`___lldb_unnamed_symbol14090 + 2047
    frame #47: 0x00000008348efead libQt5Widgets.so.5`___lldb_unnamed_symbol14084 + 237
    frame #48: 0x000000083489a743 libQt5Widgets.so.5`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 259
    frame #49: 0x000000083489bafe libQt5Widgets.so.5`QApplication::notify(QObject*, QEvent*) + 526
    frame #50: 0x0000000839828f41 libQt5Core.so.5`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 177
    frame #51: 0x00000008353cc301 libQt5Gui.so.5`QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) + 3297
    frame #52: 0x00000008353b00ab libQt5Gui.so.5`QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 219
    frame #53: 0x000000086450579f libQt5XcbQpa.so.5`___lldb_unnamed_symbol3552 + 31
    frame #54: 0x00000008526ba50b libglib-2.0.so.0`___lldb_unnamed_symbol2540 + 363
    frame #55: 0x00000008526ba8cd libglib-2.0.so.0`___lldb_unnamed_symbol2541 + 589
    frame #56: 0x00000008526ba966 libglib-2.0.so.0`g_main_context_iteration + 102
    frame #57: 0x000000083987e1c5 libQt5Core.so.5`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 101
    frame #58: 0x0000000839825886 libQt5Core.so.5`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
    frame #59: 0x00000008398295b1 libQt5Core.so.5`QCoreApplication::exec() + 145
    frame #60: 0x0000000000211815 systemsettings`___lldb_unnamed_symbol853 + 5045
    frame #61: 0x000000083ab557da libc.so.7`__libc_start1 + 298
    frame #62: 0x000000000020fdd0 systemsettings`___lldb_unnamed_symbol834 + 48
  thread #2, name = 'llvmpipe-0', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #3, name = 'llvmpipe-1', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #4, name = 'llvmpipe-2', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #5, name = 'llvmpipe-3', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #6, name = 'llvmpipe-4', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #7, name = 'llvmpipe-5', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #8, name = 'llvmpipe-6', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #9, name = 'llvmpipe-7', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x0000000880029165 swrast_dri.so`___lldb_unnamed_symbol19150 + 213
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #10, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #11, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #12, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #13, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #14, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #15, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #16, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #17, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547afa1c libsys.so.7`_umtx_op_err + 12
    frame #1: 0x0000000848a1dd22 libthr.so.3`___lldb_unnamed_symbol752 + 82
    frame #2: 0x0000000848a0fa47 libthr.so.3`___lldb_unnamed_symbol563 + 583
    frame #3: 0x000000087f9b7ae9 swrast_dri.so`___lldb_unnamed_symbol3548 + 9
    frame #4: 0x000000088003aaa8 swrast_dri.so`___lldb_unnamed_symbol19220 + 200
    frame #5: 0x000000087f9b7c69 swrast_dri.so`___lldb_unnamed_symbol3554 + 25
    frame #6: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #18, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af7ba libsys.so.7`__sys_read + 10
    frame #1: 0x0000000848a1c793 libthr.so.3`___lldb_unnamed_symbol724 + 51
    frame #2: 0x0000000852710dff libglib-2.0.so.0`___lldb_unnamed_symbol2791 + 111
    frame #3: 0x00000008526b9fc9 libglib-2.0.so.0`___lldb_unnamed_symbol2539 + 233
    frame #4: 0x00000008526ba8bc libglib-2.0.so.0`___lldb_unnamed_symbol2541 + 572
    frame #5: 0x00000008526ba966 libglib-2.0.so.0`g_main_context_iteration + 102
    frame #6: 0x000000083987e1ec libQt5Core.so.5`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 140
    frame #7: 0x0000000839825886 libQt5Core.so.5`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
    frame #8: 0x000000083966d513 libQt5Core.so.5`QThread::exec() + 163
    frame #9: 0x0000000836639703 libQt5DBus.so.5`___lldb_unnamed_symbol1320 + 19
    frame #10: 0x000000083966e539 libQt5Core.so.5`___lldb_unnamed_symbol7235 + 233
    frame #11: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #19, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af67a libsys.so.7`__sys_kevent + 10
    frame #1: 0x0000000848a1cbc4 libthr.so.3`___lldb_unnamed_symbol734 + 84
    frame #2: 0x000000084d8e04eb libinotify.so.0`___lldb_unnamed_symbol150 + 187
    frame #3: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #20, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af7ba libsys.so.7`__sys_read + 10
    frame #1: 0x0000000848a1c793 libthr.so.3`___lldb_unnamed_symbol724 + 51
    frame #2: 0x0000000852710dff libglib-2.0.so.0`___lldb_unnamed_symbol2791 + 111
    frame #3: 0x00000008526b9fc9 libglib-2.0.so.0`___lldb_unnamed_symbol2539 + 233
    frame #4: 0x00000008526ba8bc libglib-2.0.so.0`___lldb_unnamed_symbol2541 + 572
    frame #5: 0x00000008526ba966 libglib-2.0.so.0`g_main_context_iteration + 102
    frame #6: 0x000000083987e1ec libQt5Core.so.5`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 140
    frame #7: 0x0000000839825886 libQt5Core.so.5`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
    frame #8: 0x000000083966d513 libQt5Core.so.5`QThread::exec() + 163
    frame #9: 0x000000083ef460b9 libQt5Qml.so.5`___lldb_unnamed_symbol11228 + 57
    frame #10: 0x000000083966e539 libQt5Core.so.5`___lldb_unnamed_symbol7235 + 233
    frame #11: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #21, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af73a libsys.so.7`__sys_poll + 10
    frame #1: 0x0000000848a1c6c1 libthr.so.3`___lldb_unnamed_symbol722 + 49
    frame #2: 0x00000008526ba86d libglib-2.0.so.0`___lldb_unnamed_symbol2541 + 493
    frame #3: 0x00000008526ba966 libglib-2.0.so.0`g_main_context_iteration + 102
    frame #4: 0x000000083987e1ec libQt5Core.so.5`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 140
    frame #5: 0x0000000839825886 libQt5Core.so.5`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
    frame #6: 0x000000083966d513 libQt5Core.so.5`QThread::exec() + 163
    frame #7: 0x000000083ef460b9 libQt5Qml.so.5`___lldb_unnamed_symbol11228 + 57
    frame #8: 0x000000083966e539 libQt5Core.so.5`___lldb_unnamed_symbol7235 + 233
    frame #9: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309
  thread #22, name = 'systemsettings', stop reason = signal SIGSTOP
    frame #0: 0x00000008547af73a libsys.so.7`__sys_poll + 10
    frame #1: 0x0000000848a1c6c1 libthr.so.3`___lldb_unnamed_symbol722 + 49
    frame #2: 0x00000008526ba86d libglib-2.0.so.0`___lldb_unnamed_symbol2541 + 493
    frame #3: 0x00000008526ba966 libglib-2.0.so.0`g_main_context_iteration + 102
    frame #4: 0x000000083987e1ec libQt5Core.so.5`QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 140
    frame #5: 0x0000000839825886 libQt5Core.so.5`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 550
    frame #6: 0x000000083966d513 libQt5Core.so.5`QThread::exec() + 163
    frame #7: 0x000000083ef460b9 libQt5Qml.so.5`___lldb_unnamed_symbol11228 + 57
    frame #8: 0x000000083966e539 libQt5Core.so.5`___lldb_unnamed_symbol7235 + 233
    frame #9: 0x0000000848a10ba5 libthr.so.3`___lldb_unnamed_symbol566 + 309

Reported using DrKonqi
Comment 1 Nate Graham 2024-06-27 19:16:09 UTC 
Thank you for the bug report! Unfortunately I can't reproduce the crash myself on current git master, and the backtrace is incomplete and missing debug symbols for the following line that we need to figure out exactly what's going wrong:

>     frame #7: 0x00000008dfbd112d kcm_kscreen.so`___lldb_unnamed_symbol846 + 493

Could you please install debug symbols for kscreen and attach a new symbolicated backtrace that shows debug symbols for that stack frame?

Thanks again!
Comment 2 petargreat 2024-06-28 04:52:26 UTC 
Yes I can, please tell me how, sorry for the question.
Also I have installed latest gnome after kde and now the login process hangs in between after desktop is shown.
There is nothing in the start menu.
The machine is run under latest vmplayer, just fyi so that could have some implications.
Comment 3 Nate Graham 2024-07-10 20:09:07 UTC 
If you change the environment that the bug occurs in, then it's going to change how the system behaves, and likely make the bug impossible to investigate.

Let us know if you hit it again in Plasma and can get a symbolicated backtrace for it.