On 09/05/2018 10:47 PM, Michal Hocko wrote: > why do you have to keep DEBUG_VM enabled for workloads where the boot > time matters so much that few seconds matter? There are a number of distributions that run with it enabled in the default build. Fedora, for one. We've basically assumed for a while that we have to live with it in production environments. So, where does leave us? I think we either need a _generic_ debug option like: 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.
