On Fri, Feb 12, 2021 at 12:58:27PM -0800, Sagi Grimberg wrote: > > blk_mq_tag_to_rq() will always return a request if the command_id is > > in the valid range. Check if the request has been started. If we > > blindly process the request we might double complete a request which > > can be fatal. > > How did you get to this one? did the controller send a completion for > a completed/bogus request?
If that is the case, then that must mean it's possible the driver could have started the command id just before the bogus completion check. Data iorruption, right?