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Bug
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Resolution: Invalid
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Not Evaluated
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None
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6.10
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None
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Windows
I haven't been able to figure out a small repro for this yet, but I can reproduce it readily in our environment, caused by getting 0xdddd... from d_func() in one of the notify paths. I'll see if I can boil it down to a simple example. We have Qt Multimedia playing .opus from https and it crashes when closing the hosting process.
See attached VS screenshots
Call stack most of the time:
Qt6Cored.dll!std::_Atomic_storage<QThreadData *,8>::load(const std::memory_order _Order) Line 1042 at C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.44.35207\include\atomic(1042)Qt6Cored.dll!QAtomicOps<QThreadData *>::loadAcquire<QThreadData *>(const std::atomic<QThreadData *> & _q_value) Line 216 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\thread\qatomic_cxx11.h(216)Qt6Cored.dll!QBasicAtomicPointer<QThreadData>::loadAcquire() Line 178 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\thread\qbasicatomic.h(178)Qt6Cored.dll!QCoreApplication::notifyInternal2(QObject * receiver, QEvent * event) Line 1088 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1088)Qt6Cored.dll!QCoreApplication::sendEvent(QObject * receiver, QEvent * event) Line 1550 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1550)Qt6Cored.dll!QEventDispatcherWin32Private::sendTimerEvent(int timerId) Line 414 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventdispatcher_win.cpp(414)Qt6Cored.dll!QEventDispatcherWin32::event(QEvent * e) Line 906 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventdispatcher_win.cpp(906)Qt6Cored.dll!QCoreApplicationPrivate::notify_helper(QObject * receiver, QEvent * event) Line 1281 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1281)Qt6Cored.dll!doNotify(QObject * receiver, QEvent * event) Line 1210 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1210)Qt6Cored.dll!QCoreApplication::notify(QObject * receiver, QEvent * event) Line 1194 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1194)Qt6Cored.dll!QCoreApplication::notifyInternal2(QObject * receiver, QEvent * event) Line 1109 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1109)Qt6Cored.dll!QCoreApplication::sendEvent(QObject * receiver, QEvent * event) Line 1550 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1550)Qt6Cored.dll!QCoreApplicationPrivate::sendPostedEvents(QObject * receiver, int event_type, QThreadData * data) Line 1904 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1904)Qt6Cored.dll!QEventDispatcherWin32::sendPostedEvents() Line 925 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventdispatcher_win.cpp(925)Qt6Cored.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 483 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventdispatcher_win.cpp(483)Qt6Cored.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 105 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventloop.cpp(105)Qt6Cored.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 186 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qeventloop.cpp(186)Qt6Cored.dll!QCoreApplication::exec() Line 1452 at C:\Qt\6.10.0\git_source\qtbase\src\corelib\kernel\qcoreapplication.cpp(1452)
