On Tue, Aug 29, 2017 at 11:40:53AM +0200, Paul Menzel wrote: > It looks like I was using blk-mq, as it was the default up to commit > cbe7dfa26eee (Revert "scsi: default to scsi-mq"). So with Linux 4.13-rc7 and > disabling blk-mq for SCSI, the system is functional again after resume. Thanks for the confirmation Paul - I'll keep you on Cc when implementing blќ runtime pm to make sure this issue doesn't reappear.