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Why _ThreadProcessSignalsFromIrq() in new exception processing?

Sergei Organov wrote:

>  Where? In the comments? Just telling
> it's infrequent doesn't make it infrequent. From Joel's explanations I've drawn
> a conclusion that it could be rather frequent if application uses POSIX
> signals heavily. Am I mistaken?

Yes: you must use signal in an ISR routine to signal the thread you are 
currently running which is rather not frequent...


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