Sandbox failure on Debian 8.9 under OpenVZ with kernel version 2.6.32

A relay operator reports a sandbox failure on Tor 0.3.0.9 with the following log lines:

sandbox_getaddrinfo(): (Sandbox) getaddrinfo succeeded.
sandbox_getaddrinfo(): (Sandbox) getaddrinfo failed.
sandbox_getaddrinfo(): (Sandbox) getaddrinfo succeeded.
install_syscall_filter(): Bug: (Sandbox) failed to load: -22 (Invalid argument)! (on Tor 0.3.0.9 )
tor_main(): Bug: Failed to create syscall sandbox filter (on Tor 0.3.0.9 )
main process exited, code=exited, status=1/FAILURE

See https://lists.torproject.org/pipermail/tor-relays/2017-August/012694.html

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