Hi Christoph, Thank you for looking into this. I applied your patch to v5.11 but unfortunately I am encountering the same errors when ejecting USB drives. e.g. [ 45.188575] sd 8:0:0:0: [sdc] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=0s [ 45.188584] sd 8:0:0:0: [sdc] tag#0 Sense Key : Not Ready [current] [ 45.188588] sd 8:0:0:0: [sdc] tag#0 Add. Sense: Medium not present [ 45.188592] sd 8:0:0:0: [sdc] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 [ 45.188594] blk_update_request: I/O error, dev sdc, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 45.188601] Buffer I/O error on dev sdc, logical block 0, async page read I am happy to test any patches you send my way. Tom On Tue, Feb 16, 2021 at 6:37 AM Christoph Hellwig <hch@xxxxxx> wrote: > > ... but you were using sd, not sr. > > Can you give this patch a spin? > > diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c > index a3d2d4bc4a3dcd..6671b4e1909777 100644 > --- a/drivers/scsi/sd.c > +++ b/drivers/scsi/sd.c > @@ -2116,6 +2116,14 @@ static int sd_done(struct scsi_cmnd *SCpnt) > } > } > break; > + case NOT_READY: > + /* Medium not present */ > + if (SCpnt->device->removable && sshdr.asc == 0x3a00) { > + req->rq_flags |= RQF_QUIET; > + set_media_not_present(sdkp); > + sdkp->capacity = 0; > + } > + break; > default: > break; > }