diff --git a/sys/dev/ahci/ahci.c b/sys/dev/ahci/ahci.c
index 2a064923cf3..5db3a04a36e 100644
--- a/sys/dev/ahci/ahci.c
+++ b/sys/dev/ahci/ahci.c
@@ -1835,9 +1835,11 @@ ahci_execute_transaction(struct ahci_slot *slot)
 			if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot)))
 				break;
 			if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) {
+#if 0
 				device_printf(ch->dev,
 				    "Poll error on slot %d, TFD: %04x\n",
 				    slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD));
+#endif
 				et = AHCI_ERR_TFE;
 				break;
 			}
@@ -1877,14 +1879,12 @@ ahci_execute_transaction(struct ahci_slot *slot)
 				}
 			} 
 		}
-		ahci_end_transaction(slot, et);
 		/* Kick controller into sane state and enable FBS. */
 		if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
 		    (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
-		    (ccb->ataio.cmd.control & ATA_A_RESET) == 0) {
-			ahci_stop(ch->dev);
-			ahci_start(ch->dev, 1);
-		}
+		    (ccb->ataio.cmd.control & ATA_A_RESET) == 0)
+			ch->eslots |= (1 << slot->slot);
+		ahci_end_transaction(slot, et);
 		return;
 	}
 	/* Start command execution timeout */
@@ -2169,13 +2169,6 @@ ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et)
 		ch->numhslots++;
 	} else
 		xpt_done(ccb);
-	/* Unfreeze frozen command. */
-	if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) {
-		union ccb *fccb = ch->frozen;
-		ch->frozen = NULL;
-		ahci_begin_transaction(dev, fccb);
-		xpt_release_simq(ch->sim, TRUE);
-	}
 	/* If we have no other active commands, ... */
 	if (ch->rslots == 0) {
 		/* if there was fatal error - reset port. */
@@ -2185,6 +2178,7 @@ ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et)
 			/* if we have slots in error, we can reinit port. */
 			if (ch->eslots != 0) {
 				ahci_stop(dev);
+				ahci_clo(dev);
 				ahci_start(dev, 1);
 			}
 			/* if there commands on hold, we can do READ LOG. */
@@ -2195,6 +2189,13 @@ ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et)
 	} else if ((ch->rslots & ~ch->toslots) == 0 &&
 	    et != AHCI_ERR_TIMEOUT)
 		ahci_rearm_timeout(dev);
+	/* Unfreeze frozen command. */
+	if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) {
+		union ccb *fccb = ch->frozen;
+		ch->frozen = NULL;
+		ahci_begin_transaction(dev, fccb);
+		xpt_release_simq(ch->sim, TRUE);
+	}
 	/* Start PM timer. */
 	if (ch->numrslots == 0 && ch->pm_level > 3 &&
 	    (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) {
diff --git a/sys/dev/mvs/mvs.c b/sys/dev/mvs/mvs.c
index 5dbe30cd1a7..54808c51b58 100644
--- a/sys/dev/mvs/mvs.c
+++ b/sys/dev/mvs/mvs.c
@@ -1738,13 +1738,6 @@ mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et)
 		ch->numhslots++;
 	} else
 		xpt_done(ccb);
-	/* Unfreeze frozen command. */
-	if (ch->frozen && !mvs_check_collision(dev, ch->frozen)) {
-		union ccb *fccb = ch->frozen;
-		ch->frozen = NULL;
-		mvs_begin_transaction(dev, fccb);
-		xpt_release_simq(ch->sim, TRUE);
-	}
 	/* If we have no other active commands, ... */
 	if (ch->rslots == 0) {
 		/* if there was fatal error - reset port. */
@@ -1764,6 +1757,13 @@ mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et)
 	} else if ((ch->rslots & ~ch->toslots) == 0 &&
 	    et != MVS_ERR_TIMEOUT)
 		mvs_rearm_timeout(dev);
+	/* Unfreeze frozen command. */
+	if (ch->frozen && !mvs_check_collision(dev, ch->frozen)) {
+		union ccb *fccb = ch->frozen;
+		ch->frozen = NULL;
+		mvs_begin_transaction(dev, fccb);
+		xpt_release_simq(ch->sim, TRUE);
+	}
 	/* Start PM timer. */
 	if (ch->numrslots == 0 && ch->pm_level > 3 &&
 	    (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) {
@@ -2080,7 +2080,8 @@ mvs_softreset(device_t dev, union ccb *ccb)
 {
 	struct mvs_channel *ch = device_get_softc(dev);
 	int port = ccb->ccb_h.target_id & 0x0f;
-	int i;
+	int i, stuck;
+	uint8_t status;
 
 	mvs_set_edma_mode(dev, MVS_EDMA_OFF);
 	ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT);
@@ -2089,12 +2090,35 @@ mvs_softreset(device_t dev, union ccb *ccb)
 	ATA_OUTB(ch->r_mem, ATA_CONTROL, 0);
 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 	/* Wait for clearing busy status. */
-	if ((i = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, ccb->ccb_h.timeout)) < 0) {
+	if ((i = mvs_wait(dev, 0, ATA_S_BUSY, ccb->ccb_h.timeout)) < 0) {
 		ccb->ccb_h.status |= CAM_CMD_TIMEOUT;
+		stuck = 1;
 	} else {
-		ccb->ccb_h.status |= CAM_REQ_CMP;
+		status = mvs_getstatus(dev, 0);
+		if (status & ATA_S_ERROR)
+			ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
+		else
+			ccb->ccb_h.status |= CAM_REQ_CMP;
+		if (status & ATA_S_DRQ)
+			stuck = 1;
+		else
+			stuck = 0;
 	}
 	mvs_tfd_read(dev, ccb);
+
+	/*
+	 * XXX: If some device on PMP failed to soft-reset,
+	 * try to recover by sending dummy soft-reset to PMP.
+	 */
+	if (stuck && ch->pm_present && port != 15) {
+		ATA_OUTB(ch->r_mem, SATA_SATAICTL,
+		    15 << SATA_SATAICTL_PMPTX_SHIFT);
+		ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET);
+		DELAY(10000);
+		ATA_OUTB(ch->r_mem, ATA_CONTROL, 0);
+		mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, ccb->ccb_h.timeout);
+	}
+
 	xpt_done(ccb);
 }
 
diff --git a/sys/dev/siis/siis.c b/sys/dev/siis/siis.c
index 01edae368a5..a7b018a4321 100644
--- a/sys/dev/siis/siis.c
+++ b/sys/dev/siis/siis.c
@@ -1178,11 +1178,22 @@ siis_timeout(struct siis_slot *slot)
 {
 	device_t dev = slot->dev;
 	struct siis_channel *ch = device_get_softc(dev);
+	union ccb *ccb = slot->ccb;
 
 	mtx_assert(&ch->mtx, MA_OWNED);
 	/* Check for stale timeout. */
 	if (slot->state < SIIS_SLOT_RUNNING)
 		return;
+
+	/* Handle soft-reset timeouts without doing hard-reset. */
+	if ((ccb->ccb_h.func_code == XPT_ATA_IO) &&
+	    (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
+	    (ccb->ataio.cmd.control & ATA_A_RESET)) {
+		xpt_freeze_simq(ch->sim, ch->numrslots);
+		siis_end_transaction(slot, SIIS_ERR_TFE);
+		return;
+	}
+
 	device_printf(dev, "Timeout on slot %d\n", slot->slot);
 	device_printf(dev, "%s is %08x ss %08x rs %08x es %08x sts %08x serr %08x\n",
 	    __func__, ATA_INL(ch->r_mem, SIIS_P_IS),
@@ -1331,13 +1342,6 @@ siis_end_transaction(struct siis_slot *slot, enum siis_err_type et)
 		ch->numhslots++;
 	} else
 		xpt_done(ccb);
-	/* Unfreeze frozen command. */
-	if (ch->frozen && !siis_check_collision(dev, ch->frozen)) {
-		union ccb *fccb = ch->frozen;
-		ch->frozen = NULL;
-		siis_begin_transaction(dev, fccb);
-		xpt_release_simq(ch->sim, TRUE);
-	}
 	/* If we have no other active commands, ... */
 	if (ch->rslots == 0) {
 		/* if there were timeouts or fatal error - reset port. */
@@ -1355,6 +1359,13 @@ siis_end_transaction(struct siis_slot *slot, enum siis_err_type et)
 	} else if ((ch->rslots & ~ch->toslots) == 0 &&
 	    et != SIIS_ERR_TIMEOUT)
 		siis_rearm_timeout(dev);
+	/* Unfreeze frozen command. */
+	if (ch->frozen && !siis_check_collision(dev, ch->frozen)) {
+		union ccb *fccb = ch->frozen;
+		ch->frozen = NULL;
+		siis_begin_transaction(dev, fccb);
+		xpt_release_simq(ch->sim, TRUE);
+	}
 }
 
 static void