Details
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Bug
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Resolution: Invalid
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P1: Critical
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None
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6.8.1
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None
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Windows
Description
Hi,
QtOpcUa version 6.8.1
When running my application in Release the connection to the Plc works fine.
When running my application in Debug and actually debugging it crashes after leaving the function in which I retrieve the available backends from the QOpcUaProvider.
UaClient::init()
... QStringList available = provider.availableBackends(); if (!available.isEmpty()) { m_client = provider.createClient(available[0]); if (m_client) qDebug() << "Client successfully created"; } ...
1 RtlRegisterSecureMemoryCacheCallback ntdll 0x7fffb17d72ce 2 EtwLogTraceEvent ntdll 0x7fffb17a2157 3 RtlValidateHeap ntdll 0x7fffb17573d1 4 HeapValidate KERNELBASE 0x7fffaebf131b 5 CrtIsValidHeapPointer ucrtbased 0x7fff1fdfe912 6 calloc_base ucrtbased 0x7fff1fdfcb51 7 free_dbg ucrtbased 0x7fff1fe00335 8 free ucrtbased 0x7fff1fe00a48 9 QArrayDataPointer<QString>::~QArrayDataPointer<QString> qarraydatapointer.h 110 0x7ff60b44ddcb 10 QList<QString>::~QList<QString> Client 0x7ff60b44df67 11 UaClient::init UaClient.cpp 66 0x7ff60b6b10ca 12 PlcList::init PlcList.cpp 51 0x7ff60b69a748 13 main main.cpp 113 0x7ff60b446b94 14 invoke_main exe_common.inl 79 0x7ff60b997b09 15 __scrt_common_main_seh exe_common.inl 288 0x7ff60b9979ee 16 __scrt_common_main exe_common.inl 331 0x7ff60b9978ae 17 mainCRTStartup exe_main.cpp 17 0x7ff60b997b9e 18 BaseThreadInitThunk KERNEL32 0x7fffaf5b259d 19 RtlUserThreadStart ntdll 0x7fffb172af38
qarraydatapointer.h:110 is the last debuggable line before the crash occurs.
HEAP[Client.exe]: Invalid address specified to RtlValidateHeap( 000002A8BD720000, 000002A8C1B4CF40 ) Debug Assertion Failed!Program: C:\...\Client.exe File: minkernel\crts\ucrt\src\appcrt\heap\debug_heap.cpp Line: 904
EDIT:
This issue can be closed.
It had to to with this issue and the debug version not being built correctly
QTBUG-132338 QtOpcUa Required QtVersion Wrong - Qt Bug Tracker
QtOpcUa release was on 6.8.1 but debug was on 6.7.2. Strangely enough, the 6.7.2 version was present in the Qt6.8 path...
With the fix from Alexandru I was able to fix the problem.