On 2016/6/28 3:50, Cong Wang wrote: > On Fri, Jun 24, 2016 at 7:46 PM, Ding Tianhong <dingtianh...@huawei.com> > wrote: >> diff --git a/kernel/notifier.c b/kernel/notifier.c >> index fd2c9ac..9c30411 100644 >> --- a/kernel/notifier.c >> +++ b/kernel/notifier.c >> @@ -92,6 +92,8 @@ static int notifier_call_chain(struct notifier_block **nl, >> #endif >> ret = nb->notifier_call(nb, val, v); >> >> + cond_resched(); >> + >> if (nr_calls) >> (*nr_calls)++; > > NAK. > > You can't do a resched in atomic context in __atomic_notifier_call_chain(). > > Sorry, I miss this, so I think add touch_nmi_watchdog looks like the best solution for this problem.
Thanks Ding
