On Tue, 2018-03-13 at 16:35 +0800, Ming Lei wrote: > Then looks this issue need to fix by making possible CPU count > accurate > because there are other resources allocated according to > num_possible_cpus(), > such as percpu variables.
Short term the regression should be fixed. It is already v4.16-rc6, we have little time left. Longer term, yeah, I agree. Kernel's notion of possible CPU count should be realistic. Artem.