linux内核打印"BUG: scheduling while atomic"和"bad: scheduling from the idle thread"错误的时候,通常是在中断处理函数中调用了可以休眠的函数,如semaphore,mutex,sleep之类的可休眠的函数,而linux内核要求在中断处理的时候,不允许系统高度,不允许抢占,要等到中断处理完成才能做其他事情。因此,要充分考虑中断处理的时...
https://blog.csdn.net/tiantao2012/article/details/73275750
另外一个能产生此问题的是在idle进程里面,做了不该做的事情。现在Linux用于很多手持式设备,为了降低功耗,通常的作法是在idle进程里面降低CPU或RAM的频率、关闭一些设备等等。要保证这些动作的原子性才能确保 不发生"bad: scheduling from the idle thread"这样的错误! 禁止内核抢占是指内核不会主动的抢占你的process,...
yet it must first acquire the lock to retrieve the thread from the single queue. However, load balancing would likely not be an issue with a single run queue, whereas when each processing core has its own
This is the script from Quartz to create the tables in a MySQL database, modified to use INNODB instead of MYISAM. DROP TABLE IF EXISTS QRTZ_FIRED_TRIGGERS; DROP TABLE IF EXISTS QRTZ_PAUSED_TRIGGER_GRPS; DROP TABLE IF EXISTS QRTZ_SCHEDULER_STATE; DROP TABLE IF EXISTS QRTZ_LOCKS; DROP ...
Besides having the same error (BUG: scheduling while atomic) My syslog and kern.log also show the following error: Apr 21 21:15:55 localhost kernel: [58236.120060] bad: scheduling from the idle thread! Apr 21 21:15:55 localhost kernel: [58236.120404] CPU: 0 PID: 0 Comm: swapper/0 Tai...
Sort the display in order of CPU-use intensity, highest at the top. This will provide a means of inspecting the computer's workload, so leave the Task Manager window open, to the side of the screen. Initially, the computer should be effectively “idle”—this is a term used to ...
A giveback function is defined, for optimizing assignment of threads to incoming requests when persistent connections are used. Threads that go idle are put onto an idle queue, releasing them from a worker thread.doi:US6427161 B1Livecchi, Patrick Michael...
This timeslicer thread algorithm for rotating jobs is designed to prevent jobs from starving (remaining in the suspended state indefinitely) and to be as fair as possible in the distribution of runtime while still keeping all of the resources as busy as possible. The gang scheduler suspends jo...
Systems and methods for dynamically variable idle time thread scheduling are described. In one aspect, threads are scheduled according to a predetermined periodic rate. If there are no threads to execute, one or more hardware elements and program modules are deactivated to an idle state for a ...