on 02/09/2012 20:39 Andrey Zonov said the following: > CTLFLAG_RDTUN | CTLFLAG_RW This combination looks like nonsense to me (because of "RD"). CTLFLAG_RDTUN Advisory flag that a system tunable also exists for this variable; however, the run-time variable is read-only. Probably you meant CTLFLAG_RW | CTLFLAG_TUN -- Andriy Gapon