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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Tested application freezes irregularly","articleBody":"Hi,\r\n\r\nwe are currently facing some problems with our tested application (DUnitX unit tests) when using the CodeCoverage.exe. I'm not sure, where this originates from, but I hope you can assist with your experience in this topic.\r\n\r\nOur observations so far:\r\n- The application freezes from time to time. It doesn't happen every time, but too frequently to ignore.\r\n- Trying to call MadTraceProcess to query an updated callstack fails as well, it just freezes the same way.\r\n- The code coverage debug logs keeps on reporting that \"Wait For Debug Event timed-out\"\r\n- We have not seen this error to occur once without using the CodeCoverage.exe\r\n- This error does occur even without having any unit included to cover (so the CodeCoverage.exe is basically just registered as debugger?)\r\n- It occurs with both 32 and 64bit builds.\r\n- The process dumps (created with ProcDump, evaluated with WinDbg) report that the application is processing an exception, error code 0x80000003 - STATUS_BREAKPOINT\r\n- The error seems to occur in different situations/tests\r\n- All the reports seem to have only one thing in common:\r\n  - One thread (main thread) is trying to create a COM object (a DOMDocument from msxml6.dll)\r\n![image](https://user-images.githubusercontent.com/22791435/166229524-4a0fd1e6-f400-43c1-a440-5d6eb6036967.png)\r\n  - One thread seems to be unloading the msxml6.dll\r\n![image](https://user-images.githubusercontent.com/22791435/166229437-30f01c99-917c-4792-a6df-b585d0e68161.png)\r\n  - One thread seems to be initializing the msxml6.dll\r\n  ![image](https://user-images.githubusercontent.com/22791435/166229643-2e233c40-d731-4270-b376-e49ba3f41e9b.png)\r\n\r\n_Update_:\r\n- New dumps do not even show these call stacks, so this seems to drop out as a common base. So it's down to STATUS_BREAKPOINT.\r\n\r\nI'm afraid I can't provide a simple testing application or share the complete code, because I didn't manage to reproduce it by now without using our whole testing application. I will try to do so though, if possible.\r\n\r\nAny ideas? I'm open and thankful for any suggestion ..","author":{"url":"https://github.com/Daniel-Tr","@type":"Person","name":"Daniel-Tr"},"datePublished":"2022-05-02T12:00:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/25/DelphiCodeCoverage/issues/25"}