diff options
Diffstat (limited to 'kernel/sched/walt.c')
| -rw-r--r-- | kernel/sched/walt.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/sched/walt.c b/kernel/sched/walt.c index b9ae8d5c4393..d9d09914ce30 100644 --- a/kernel/sched/walt.c +++ b/kernel/sched/walt.c @@ -185,7 +185,14 @@ update_window_start(struct rq *rq, u64 wallclock) int nr_windows; delta = wallclock - rq->window_start; - BUG_ON(delta < 0); + /* If the MPM global timer is cleared, set delta as 0 to avoid kernel BUG happening */ + if (delta < 0) { + if (arch_timer_read_counter() == 0) + delta = 0; + else + BUG_ON(1); + } + if (delta < walt_ravg_window) return; |