On Wed, Feb 27, 2013 at 6:09 PM, Clark Williams <williams@xxxxxxxxxx> wrote:
> What happens if you compile and run this program on your kernel?
> #include <stdio.h>
> #include <stdlib.h>
> #include <sched.h>
> #include <errno.h>
> #include <memory.h>
>
> int main(int argc, char **argv)
> {
> int ret;
> struct sched_param s;
>
> memset(&s, 0, sizeof(s));
> s.sched_priority = 1;
> if ((sched_setscheduler(0, SCHED_FIFO, &s))) {
> fprintf(stderr, "error changing policy: %s\n", strerror(errno));
> exit(errno);
> }
> printf("successfully changed policy to SCHED_FIFO priority 1\n");
> exit(0);
> }
When I run it as root I get "error changing policy: Operation not permitted".
Does this mean that some hard limits are not correctly set for root?
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