On Thu, Aug 01, 2019 at 02:05:54AM -0700, Kai-Heng Feng wrote: > at 06:33, Rafael J. Wysocki <raf...@kernel.org> wrote: > > On Thu, Aug 1, 2019 at 12:22 AM Keith Busch <kbu...@kernel.org> wrote: > > > >> In which case we do need to reintroduce the HMB handling. > > > > Right. > > The patch alone doesn’t break HMB Toshiba NVMe I tested. But I think it’s > still safer to do proper HMB handling.
Spec requires host request controller release HMB for D3cold. I suspect you're only getting to D3hot.
