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=== Add support for pidfd file descriptors ===
'''Summary:''' Support C/R of pidfd descriptors
There is pidfd_open syscall which allows opening
a special PID file descriptor. A user can send a signal to
the process (pidfd_send_signal syscall), wait for the process
(poll() on pidfd).
At the moment CRIU can't dump processes that have pidfd's opened.
'''Links:'''
* https://lwn.net/Articles/801319/
* https://lwn.net/Articles/794707/
* https://github.com/torvalds/linux/blob/v5.16/kernel/fork.c#L1877
'''Details:'''
* Skill level: intermediate
* Language: C
* Expected size: 350 hours
* Mentors: Alexander Mikhalitsyn <alexander@mihalicyn.com>, Christian Brauner <christian@brauner.io>
* Suggested by: Alexander Mikhalitsyn <alexander@mihalicyn.com>
=== Add support for memfd_secret file descriptors ===
=== Add support for memfd_secret file descriptors ===