On 09/06/2018 08:13 AM, Michal Hocko wrote: >> CONFIG_DEBUG_VM_SLOW_AS_HECK >> >> under which we can put this an other really slow VM debugging. Or, we >> need some kind of boot-time parameter to trigger the extra checking >> instead of a new CONFIG option. > I strongly suspect nobody will ever enable such a scary looking config > TBH. Besides I am not sure what should go under that config option.
OK, so call it CONFIG_DEBUG_VM2, or CONFIG_DEBUG_VM_MORE. :) What do we put under it? The things that folks complain about that get turned on with DEBUG_VM, like this. > Is this worth a separate config option almost nobody is going to > enable? Yes. We get basically *zero* debug checking from this option. We want it available to developers mucking with boot and hotplug, but it's honestly not worth it for normal users. Has anyone ever seen a single in-the-wild report from this mechanism?
