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Changes
→memfd
FIXME how
FIXME how
HOW: The memfd in question is created in the task with lowest PID among those having this shmem segment
mapped, then criu waits for the others to get this file by opening the creator's /proc/pid/fd/ link.
Afterwards all the files just mmap() this descriptor into their address space.
=== /proc/$PID/map_files/ ===
=== /proc/$PID/map_files/ ===