On Thu, Mar 01, 2018 at 11:03:30PM +0800, Ming Lei wrote: > If all CPUs for the 1st IRQ vector of admin queue are offline, then I > guess NVMe can't work any more.
Yikes, with respect to admin commands, it appears you're right if your system allows offlining CPU0. > So looks it is a good idea to make admin queue's IRQ vector assigned as > non-managed IRQs. It'd still be considered managed even if it's a 'pre_vector', though it would get the default mask with all possible CPUs.
