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Advanced Question : Crash after hours of running my multithreaded application

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I have this very very annoying and hard to trace crash that happens after 20 hours of running my application. I have this multithreaded application that that controls some mechanical linear stages and image acquisition. Now for some reason, after around 20 hours of running my application it crashes. In my app logs I can see a “QMutexPrivate::QMutexPrivate: Cannot create event” error, and a windows application error pops up saying “The instruction at 0x****** referenced memory at 0x*******. The memory could not be written”. It’s a very hard crash to trace given that it takes long time to replicate. Is there a system specific memory even that happens after long hours that can cause an app to crash ? This crash is driving me crazy !

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