On Mon, Nov 23, 2015 at 09:42:06AM -0800, Lianwei Wang wrote: > Issue was found on ARM/Qcom platform, but I think it is applicable to > other platforms as well. I add a BUG_ON after rcu_enter_idle to catch > it. The Qcom's cpuidle driver is not in mainline kernel yet. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? And I suspect that your qualcom thing doesn't have TIF_POLLING_NRFLAG either, which would introduce another need_resched() test after the rcu_enter_idle() call.
