3 ms·userspace can be preempted at any instruction, so you have a TOCTOU problem.by the8472 3y agouserspace can be preempted at any instruction, so you have a TOCTOU problem.pmontra 3y agoRight, thanks.janwas 3y agoSure, but one can first pin the thread to a core, or a "don't move me between core types" flag could be added to OSes.