On 2024/07/03 7:35, Axel Rasmussen wrote: > But, note that stack_map_get_build_id calls mmap_read_trylock, so I > would expect in the recursive case that call will simply fail, and > then stack_map_get_build_id_offset appears to deal gracefully with > that? Unless that mmap was already held for write (or someone has started waiting to hold it for write), recursive mmap_read_trylock() will succeed. Thus, unless there is a guarantee of no infinite recursion, we should implement a safeguard based on the worst scenario.
