上面的的补丁将sdei_cpuhp_up/sdei_cpuhp_down的调用时机从CPUHP_AP_ARM_SDEI_STARTING后移到了CPUHP_AP_ONLINE_DYN,导致sdei watchdog事件的register在enable之后,enable时事件还未register,所以sdei watchdog enable会失败 系统启动时的事件注册是在lockup_detector_init->watchdog_nmi_probe里面注册,所以系统启动...
5.1 watchdog_nmi_enable /* T functions can be overridden if an architecture implements its own hardlockup detector.*/ int __weak watchdog_nmi_enable(unsigned int cpu) { hardlockup_detector_perf_enable(); return 0; } void hardlockup_detector_perf_enable(void) { if (hardlockup_detector_...
1、注册watchdog线程 staticstruct smp_hotplug_thread watchdog_threads = {.store = &softlockup_watchdog,.thread_should_run = watchdog_should_run,.thread_fn = watchdog,/* watchdog线程函数 */.thread_comm ="watchdog/%u",.setup = watchdog_enable,.cleanup= watchdog_cleanup,.park = watchdog...
4. 而watchdog_enable函数的处理,与watchdog_disable_count的值有关,只有当该值为0时,才对各个cpu的时钟作重新的赋值。 因此,在kdb中,watchdog的作用相当于告诉系统,是否还有cpu处在暂停状态或者是kdb状态,只要有,则必须等它们都处理完并释放watchdog以后,系统才能真正的恢复执行。
网络启用看门狗 网络释义 1. 启用看门狗 Chrome... ... enable-p13n 引擎之类的 启用 不会翻译 没见过enable-watchdog启用看门狗(估计是安全类) first-run 首先启动*… bbs.chromi.org|基于 1 个网页
_WDOG_CS1.Bits.INT = 1; // Enable WDOG interrupt. When I debug the application, I can see that UPDATE bit is set and the watchdog timer is disabled, also, it behaves as desired when I reset using the debugger. However, in case of a reset by the reset button or power down, ...
4、绑定hrtimer中断处理函数,watchdog_timer_fn是hrtimer的中断处理函数,以下是中断函数的注册过程:为每个CPU创建watchdog线程时会调用watchdog_enable函数。 staticvoidwatchdog_enable(unsignedintcpu){structhrtimer*hrtimer=&__raw_get_cpu_var(watchdog_hrtimer);/* 启动定时器 */hrtimer_init(hrtimer,CLOCK_MONOTO...
Timeout valueforopening watchdog device--watchdog框架负责的喂狗时间,0表示无穷。等同于模块参数watchdog.open_timeout。Read different watchdog information through sysfs*** Watchdog Pretimeout Governors ***--watchdog子系统governor配置。Enable watchdog pretimeout governors...
err=watchdog_nmi_enable(cpu); /*Regardless oferrabove,fall throughandstart softlockup*/ /*create the watchdog thread*/ if(!p){ //创建watchdog内核线程 p=kthread_create(watchdog,(void*)(unsigned long)cpu,"watchdog/%d",cpu); if(IS_ERR(p)){ ...
systemctl enable watchdog.service 4.5.3. 配置 watchdog 的功能 确认watchdog 卡被连到虚拟机上, watchdog 服务已启动。 警告 以下操作只被用来测试 watchdog 的功能,请不要在实际的生产环境中运行。 过程 4.11. 配置 watchdog 的功能 登录到 watchdog 卡所连的虚拟机上。 确认...