Details
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Bug
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Resolution: Done
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P2: Important
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6.2.2
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Windows
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5d228beb52 (qt/qtbase/dev) 84ab463aa3 (qt/qtbase/6.3) 5d228beb52 (qt/tqtc-qtbase/dev) 84ab463aa3 (qt/tqtc-qtbase/6.3) 16e970aa81 (qt/tqtc-qtbase/5.15) 4db05007d7 (qt/qtbase/6.2.3) 4db05007d7 (qt/tqtc-qtbase/6.2.3) 44006dedde (qt/qtbase/6.2)
Description
When using QDateTime with QTimeZone specified, there is an assertion in debug build:
ASSERT: "d->ref.loadRelaxed() == 1" in file \Users\qt\work\qt\qtbase\src\corelib\time\qdatetime.cpp, line 3158
This started happening somewhere between Qt 5.15 and 6.0. Does not reproduce with 5.15.8 but reproduces with Qt 6.0.4 (and 6.2.2).
Can be reproduced with running the attached sample.
QDateTime first(QDate(2014, 3, 30), QTime(0, 0, 0), QTimeZone("Europe/Helsinki"));
QDateTime second = first.addDays(1);
Release mode works ok.
Stack trace:
1 qt_message_fatal qlogging.cpp 1869 0x7ff8f6e0e732
2 QMessageLogger::fatal qlogging.cpp 891 0x7ff8f6e0cb26
3 qt_assert qglobal.cpp 3291 0x7ff8f6df8d8d
4 QDateTime::Data::operator-> qdatetime.cpp 3251 0x7ff8f7242dc7
5 massageAdjustedDateTime qdatetime.cpp 4241 0x7ff8f723cf85
6 QDateTime::addDays qdatetime.cpp 4273 0x7ff8f72334d0
7 main main.cpp 8 0x7ff7249e16b1
8 WinMain qtentrypoint_win.cpp 97 0x7ff7249e3e50
9 invoke_main exe_common.inl 107 0x7ff7249e1b22
10 __scrt_common_main_seh exe_common.inl 288 0x7ff7249e19ce
11 __scrt_common_main exe_common.inl 331 0x7ff7249e188e
12 WinMainCRTStartup exe_winmain.cpp 17 0x7ff7249e1bbe
13 BaseThreadInitThunk KERNEL32 0x7ff974567034
14 RtlUserThreadStart ntdll 0x7ff9762c2651