--- linux/drivers/scsi/scsi_debug.c	2010-12-03 17:17:54.000000000 -0500
+++ linux/drivers/scsi/scsi_debug.c2636resid1	2010-12-16 00:48:25.000000000 -0500
@@ -1790,6 +1790,7 @@ static int resp_read(struct scsi_cmnd *S
 			devip->sense_buff[5] = (ret >> 8) & 0xff;
 			devip->sense_buff[6] = ret & 0xff;
 		}
+	        scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
 		return check_condition_result;
 	}