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How is the signalling(interrupts) mechanism handled in kernel? The cause why I ask is: somehow a SIGABRT signal is received by my application and I want to find where does that come from..
You should be looking in your application for the cause, not in the kernel.
Usually a process receives
SIGABRTwhen it directly callsabortor when anassertfails. Finding exactly the piece of the kernel that delivers the signal will gain you nothing.In conclusion, your code or a library your code is using is causing this. See
abort(3)andassert.