[CRIU] External network namespaces

[Adrian Reber]

Hello Andrei,

when we initially talked about external network namespace and how RPC
can get those FDs you mentioned FD clashes.

I am now hitting such a FD clash:

(00.197735)      1: Inherit fd extRootNetNS -> 4 has been reused
(00.197738)      1: Error (criu/util.c:251): fd 4 already in use (called at criu/files.c:1102)
(00.197743)      1: Error (criu/files.c:1205): Unable to open fd=4 id=0x7d

I understand it in such a way that CRIU gets the network namespace via
FD 4, but the restored process also uses FD 4 and cannot use the
information from inherit FD. Any idea how to solve this? Thanks.

		Adrian