Thanks for your response. Interesting. I can see that working with these restrictions. This basically also assumes the data within that memory area only has poi

Thanks for your response. Interesting. I can see that working with these restrictions. This basically also assumes the data within that memory area only has pointers to either somewhere else in that area or to static structures outside, correct? Also the write rate is probably quite low as I imagine constantly handling SIGBUS would quickly slow things down? Did you look into userfaultfd?