site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Hi, Let me ask u a simple questions. 1. workloop is to handle interrupts, timer interrupts and the commands. some important work , asked by the primary interupts and other asked by commands. Right? Assuming this is right. So when work is important workloop thread should have higher priority than any other kernel thead. Workloop thread is created with IOCreateThread API. IOCreateThread creates the kernel thread with priority of 81. thread_call_enter() has high priority as 94. so if I have a thread created with thread_call_enter() than it will get high priority than my secondary interrupt handler. is it true? We can see this from remote-gdb. I read the IOKit funda.pdf , one thing is not clear to me is: TimerInterruptSource are handled using thread_call_enter. so if my timeout handler function is executing, is it possible that secondary interrupt handler can be served on other processor? or CloseGate() is executed after timeout hanlder is finished? and seconadary interrupt will be executed. Regards, Parav Pandit ________________________________________________________________________ Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com