Hi Petr On Thu, Feb 12, 2015 at 02:13:47PM +0000, Petr Spacek via RT wrote: > ==9645== Thread 6: > ==9645== Syscall param sendmsg(msg.msg_control) points to uninitialised byte(s) > ==9645== at 0x6CC571D: ??? (syscall-template.S:81) These have been fixed, along with many other Valgrind reported problems and are scheduled for release in the next point releases of BIND (not -P? patch releases, but point releases). Please wait for them. Also, thank you for reporting them. Mukund