关于imx6q 4 核 1G 环境运行linux3.05 uboot2009 死机问题
问题描述
运行程序 Ui程序 qt4.8.6
执行一段时间的 project –qws （我们的UI程序）
1，发现kinteractiveup 进程状态 由SW 变成 RW 图一
2，当打开播放声音的flag 时候 发现aplay 堵塞在后台，最终导致死机内核崩溃 图二
3，当 kinteractiveup 由 RW 变成 DW 直至内核崩溃。 图三
情况截图如下：
内核崩溃
内核定时报错信息:
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3666501 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3666502 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3684533 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3684534 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3702565 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3702566 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3720597 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3720598 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3738629 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3738630 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3756661 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3756662 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3774693 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3774694 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3792725 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3792726 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3810757 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3810758 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3828789 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3828790 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3846821 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3846822 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3864853 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3864854 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3882885 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3882886 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3900917 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3900918 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3918949 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3918950 jiffies)
INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3936981 jiffies)
INFO: rcu_bh_state detected stalls on CPUs/tasks: { 1} (detected by 3, t=3936982 jiffies)
