[no subject]

9506         if ((preempt_count_equals(preempt_offset) && !irqs_disabled() &&
9507              !is_idle_task(current) && !current->non_block_count) ||
9508             system_state == SYSTEM_BOOTING || system_state >
SYSTEM_RUNNING ||
9509             oops_in_progress)
9510                 return;

I guess it is irq_disable which cause the bug.

Thanks
Zhouyi