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Type: Bug
Resolution: Fixed
Priority: Not Evaluated
Fix Version/s: Qt Creator 18.0.0-beta1 (18.0 branch)
Affects Version/s: Qt Creator 18.0.0
Component/s: C/C++/Obj-C++ Support
Labels:
None
Environment:
Windows

Commits:
1cac517c8 (18.0)

Rename a local variable with Right Click -> Rename Symbol Under Cursor -> Qt Creator hangs (with 100% CPU) or crashes.

Crash trace (not sure if it's correct, it sometimes get corrupted):

00007FFF4E67B681: Tasking::TaskTree::cancel
00007FFECD35415F: QObject::qt_static_metacall
00007FFECD356F64: QMetaObject::activate
00007FFF4E665F0A: Tasking::TaskInterface::done
00007FFECD35415F: QObject::qt_static_metacall
00007FFECD356F64: QMetaObject::activate
00007FFEF6A35834: CppEditor::CppCodeModelSettings::hasCustomSettings
00007FFECD35415F: QObject::qt_static_metacall
00007FFECD356F64: QMetaObject::activate
00007FFECD4B5738: QFutureWatcherBase::event
00007FFED01E36A6: QApplicationPrivate::notify_helper
00007FFED01E27D6: QApplication::notify
00007FFECD314721: QCoreApplication::notifyInternal2
00007FFECD316DD7: QCoreApplicationPrivate::sendPostedEvents
00007FFED201BB8F: QWindowsGuiEventDispatcher::sendPostedEvents
00007FFECD4A2CC9: QEventDispatcherWin32::processEvents
00007FFED201BAF9: QWindowsGuiEventDispatcher::processEvents
00007FFECD31B194: QEventLoop::exec
00007FFECD312DEA: QCoreApplication::exec
00007FF7E13EB7E1: [unknown function]
00007FF7E13EFEF0: [unknown function]
00007FF7E13EF4E6: [unknown function]
00007FFF761D7374: BaseThreadInitThunk
00007FFF764BCC91: RtlUserThreadStart

Hang trace:

0x0000000000000000
Tasking.dll!Tasking::TaskTree::start+0x6d4
Tasking.dll!Tasking::TaskTree::cancel+0x214
Tasking.dll!Tasking::TaskTree::cancel+0x1e4
Tasking.dll!Tasking::TaskTree::cancel+0x2603
Qt6Core.dll!QObject::qt_static_metacall+0x146f
Qt6Core.dll!QMetaObject::activate+0x84
Tasking.dll!Tasking::TaskInterface::done+0x4a
Qt6Core.dll!QObject::qt_static_metacall+0x146f
Qt6Core.dll!QMetaObject::activate+0x84
CppEditor.dll!CppEditor::CppCodeModelSettings::hasCustomSettings+0xa4
Qt6Core.dll!QObject::qt_static_metacall+0x146f
Qt6Core.dll!QMetaObject::activate+0x84
Qt6Core.dll!QFutureWatcherBase::event+0x18
Qt6Widgets.dll!QApplicationPrivate::notify_helper+0x156
Qt6Widgets.dll!QApplication::notify+0x1656
Qt6Core.dll!QCoreApplication::notifyInternal2+0x101
Qt6Core.dll!QCoreApplicationPrivate::sendPostedEvents+0x247
Qt6Gui.dll!QWindowsGuiEventDispatcher::sendPostedEvents+0xf
Qt6Core.dll!QEventDispatcherWin32::processEvents+0x99
Qt6Gui.dll!QWindowsGuiEventDispatcher::processEvents+0x19
Qt6Core.dll!QEventLoop::exec+0x1c4
Qt6Core.dll!QCoreApplication::exec+0x16a
qtcreator.exe+0xb7e1
qtcreator.exe+0xfef0
qtcreator.exe+0xf4e6
KERNEL32.DLL!BaseThreadInitThunk+0x14
ntdll.dll!RtlUserThreadStart+0x21