Hi all, I wrote some sdio driver with enabling sdio interrupt. But sched_rt.c give the kernel_warning "sched: RT throttling activated" after one app runs for a while. I'm not clear about RT sheduling, and I don't understand what this warning means. My sdio driver and that app interactive like this: 1) driver write data to a kernel buffer; 2) app read data from the kernel buffer; More phenomenon is: if I don't run the app from user space, then kernel won't report this warning. So I'd like to know 1) could app thread modify kernel's scheduling policy and report such a warning? 2) any means I can debug? any suggestion will be appreciated
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