[CRIU] CRIU and travis (aarch64)

[Adrian Reber]

I just tried to switch CRIU to use the native aarch64 support on Travis
and it failed with:

+ [ -f  ]
+ umask 0000
+ ./criu/criu check
Error (criu/cr-check.c:512): /proc/sys/kernel/sem_next_id is inaccessible: Permission denied

As I have been told this is related to the fact that Travis uses
unprivileged LXD containers to distribute jobs to aarch64. As I
understand it this makes it probably not possible for us to use Travis's
native aarch64 support.

Let me know if anyone has an idea if this can be solved somehow.

		Adrian