diff --git a/sys/dev/arcmsr/arcmsr.c b/sys/dev/arcmsr/arcmsr.c
index 09bce1b9455f..0e6acbf190b2 100644
--- a/sys/dev/arcmsr/arcmsr.c
+++ b/sys/dev/arcmsr/arcmsr.c
@@ -55,6 +55,8 @@
 **     1.20.00.14   02/05/2007         Erich Chen        bug fix for incorrect ccb_h.status report
 **                                                       and cause g_vfs_done() read write error
 **     1.20.00.15   10/10/2007         Erich Chen        support new RAID adapter type ARC120x
+**     1.20.00.16   10/10/2009         Erich Chen        Bug fix for RAID adapter type ARC120x
+**                                                       bus_dmamem_alloc() with BUS_DMA_ZERO
 ******************************************************************************************
 * $FreeBSD$
 */
@@ -2903,7 +2905,7 @@ static u_int32_t arcmsr_initialize(device_t dev)
 	}
 	/* Allocation for our srbs */
 	if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr
-		, BUS_DMA_WAITOK | BUS_DMA_COHERENT, &acb->srb_dmamap) != 0) {
+		, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
 		bus_dma_tag_destroy(acb->srb_dmat);
 		bus_dma_tag_destroy(acb->dm_segs_dmat);
 		bus_dma_tag_destroy(acb->parent_dmat);
diff --git a/sys/dev/arcmsr/arcmsr.h b/sys/dev/arcmsr/arcmsr.h
index 0b573816a184..7d8e24bcbdd7 100644
--- a/sys/dev/arcmsr/arcmsr.h
+++ b/sys/dev/arcmsr/arcmsr.h
@@ -37,7 +37,7 @@
 **************************************************************************
 * $FreeBSD$
 */
-#define ARCMSR_DRIVER_VERSION                        "Driver Version 1.20.00.15 2007-10-07"
+#define ARCMSR_DRIVER_VERSION                        "Driver Version 1.20.00.16 2009-10-10"
 #define ARCMSR_SCSI_INITIATOR_ID                                              255
 #define ARCMSR_DEV_SECTOR_SIZE                                                512
 #define ARCMSR_MAX_XFER_SECTORS                                              4096