Index: sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c =================================================================== --- sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c +++ sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c @@ -2277,7 +2277,11 @@ } ccb->csio.scsi_status = (vm_srb->scsi_status & 0xFF); - ccb->csio.resid = ccb->csio.dxfer_len - vm_srb->transfer_len; + if (srb_status == SRB_STATUS_SUCCESS || + srb_status == SRB_STATUS_DATA_OVERRUN) + ccb->csio.resid = ccb->csio.dxfer_len - vm_srb->transfer_len; + else + ccb->csio.resid = ccb->csio.dxfer_len; if (reqp->sense_info_len != 0) { csio->sense_resid = csio->sense_len - reqp->sense_info_len;