> sched_rr_get_interval02 fails most of the time Private: (?)
> No
> i cant seem to narrow this down, but most of the time,
> sched_rr_get_interval02 fails
>
> # ./sched_rr_get_interval02
> sched_rr_get_interval02 1 FAIL : Test Failed,
> sched_rr_get_interval()returned 0, errno = 0 : Success, tp.tv_sec = 3,
> tp.tv_nsec = 464216500
>
> unfortunately, i havent been able to get an strace of a successful run
Recently we fixed a bug in sched_rr_get_interval that sched_rr_get_interval()
may
or may not return 0 for SCHED_FIFO (that depends on the calculation of the else
brance):
commit 1868f958eb56fc41c5985c8732e564a400c5fdf5
Author: Miao Xie <[EMAIL PROTECTED]>
Date: Fri Mar 7 09:35:06 2008 +0800
sched: fix the wrong time slice value for SCHED_FIFO tasks
Function sys_sched_rr_get_interval returns wrong time slice value for
SCHED_FIFO tasks. The time slice for SCHED_FIFO tasks should be 0.
Signed-off-by: Miao Xie <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
diff --git a/kernel/sched.c b/kernel/sched.c
index 63a469f..5b13e4b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5100,7 +5100,7 @@ long sys_sched_rr_get_interval(pid_t pid, struct timespec
__user *interval)
time_slice = 0;
if (p->policy == SCHED_RR) {
time_slice = DEF_TIMESLICE;
- } else {
+ } else if (p->policy != SCHED_FIFO) {
struct sched_entity *se = &p->se;
unsigned long flags;
struct rq *rq;
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