On Fri, 2008-04-25 at 07:27 -0700, Ben Tartsa wrote: > Hi guys, perhaps I'm missing the point here but the kernels linked in > a later post here: > http://packages.ubuntu.com/gutsy/linux-image-2.6.22-14-rt > http://packages.ubuntu.com/hardy/linux-image-2.6.24-16-rt > > are both patched w/ the rt patchset allowing full preemption. I am > aware you can get realltime as root though its a _bad_ idea. patches > are not available for the 25 series yet. Can someone sort this out? it is time to once again make clear some fundamentals. * the ability to obtain SCHED_FIFO scheduling and use mlock(2) are *COMPLETELY* separate from whether or not a kernel has been built with Ingo's RT patches and the corollary: * a kernel built with Ingo's RT patches is not required to and does not by itself ensure that a non-root user can use SCHED_FIFO and mlock(2) Ingo's RT patches simply make the performance of a system using SCHED_FIFO-scheduled threads *better*. They have *absolutely nothing* to do with whether or not a normal user can successfully execute a program that wants to use SCHED_FIFO. that is determined by other non-kernel elements of your system (which parts varies by distro, but primarily PAM on most current distros). --p _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
