Re: [PATCH V3 1/1] nvme: Add quirk for LiteON CL1 devices running FW 220TQ,22001

[Keith Busch]

On Thu, Oct 29, 2020 at 11:33:06AM +0900, Keith Busch wrote:
> On Thu, Oct 29, 2020 at 02:20:27AM +0000, Gloria Tsai wrote:
> > Corrected the description of this bug that SSD will not do GC after receiving shutdown cmd.
> > Do GC before shutdown -> delete IO Q -> shutdown from host -> breakup GC -> D3hot -> enter PS4 -> have a chance swap block -> use wrong pointer on device SRAM -> over program
> 
> What do you mean by "wrong pointer"? At the place in the sequence you're
> referring to, the PCI BME is disabled: you can't access *any* host RAM,
> so there's no "correct" pointer either.

Re-reading your message, I do see you said "device" rather than "host",
so my response may not be relevant.