Aaron Denney wrote:
> > perhaps you can explain how an audio application with a GUI that needs
> > to take advantage of SCHED_FIFO in some subset of its threads, and/or
> > mlock(2), can be run without suid (or sudo, though it seems that the
> > problems there are pretty similar) ?
>
> SCHED_FIFO can be done with a 18-line suid helper wrapper. I don't
> see why it couldn't fork() and exec() a helper app to mlock() a shared
> memory segment for audio data buffering.
SCHED_FIFO can also lock up the machine. You can protect against that
with a watchdog process but it's more than 18 lines.
-- Jamie
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