watchdog: BUG: soft lockup - CPU#3 stuck for 23s! [swapper/0:1]
测试代码如下:#include#include#includestaticDEFINE_SPINLOCK(hack_spinA);staticDEFINE_SPINLOCK(hack_spinB);voidhack_spinAB(void){printk("hack_lockdep:A->B\n");spin_lock(&hack_spinA);spin_lock(&hack_spinB);}vo