> Initially this question was going to be "can we log executed instructions" but I rapidly realized that not even DDR5 could keep up with such a logging system

> Initially this question was going to be "can we log executed instructions" but I rapidly realized that not even DDR5 could keep up with such a logging system - it would slow things down too much and likely mask the bug (not to mention the TBs of space that would be needed). Yes, the instruction fetching is quite a big part of all memory/cache reads :)