If stime + utime > 2^32, and lower 32 are 0 when user calls getrusage(), you've got a dead box.
Signed-off-by: Mike Galbraith <[email protected]> kernel/sched/core.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 82ad284..0ac2cac 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3151,7 +3151,7 @@ void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st) */ rtime = nsecs_to_cputime(p->se.sum_exec_runtime); - if (total) { + if (total && total == (__force u32) total) { u64 temp = (__force u64) rtime; temp *= (__force u64) utime; @@ -3184,7 +3184,7 @@ void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st) total = cputime.utime + cputime.stime; rtime = nsecs_to_cputime(cputime.sum_exec_runtime); - if (total) { + if (total && total == (__force u32) total) { u64 temp = (__force u64) rtime; temp *= (__force u64) cputime.utime; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
