3 ms·
No preemption is needed, the call to free might unmap the page the pointer points to. I was considering adding a paragraph about that but didn't bother. A page
by mort96 4y ago
No preemption is needed, the call to free might unmap the page the pointer points to. I was considering adding a paragraph about that but didn't bother. A page fault isn't a privilege escalation issue though, it's a pretty normal thing.