On Thu, Jan 22, 2004 at 09:45:29 +0100, Christophe Vescovi wrote: > Since there has been a lot of post concerning jack usage and > optimisation recently it has remind me a problem I got that I never been > able to understand. > I have never been able to run jackstart with -R option when compiling > jack with Sys V shm support. jackd -R as root work with SysV shm but if > I want to use jackstart I have to use POSIX shm. > The error message I am getting with SysV shm is the classical "cannot > lock down memory for RT thread (Cannot allocate memory)". > I am running a Mandrake 9.2 multimedia kernel (2.4.22, low latency, > preemption and capability patches). > Since most of jack users seem to use SysV shm I don't understand why I > cannot (I am the only exception ....) Have you strace'd it to find out what its trying to do? might give some clues. - Steve