diff --git a/lib/nvmf/vfio_user.c b/lib/nvmf/vfio_user.c
index eaa6cfbd0..aa20e03f9 100644
--- a/lib/nvmf/vfio_user.c
+++ b/lib/nvmf/vfio_user.c
@@ -1080,9 +1080,9 @@ memory_region_add_cb(vfu_ctx_t *vfu_ctx, vfu_dma_info_t *info)
 
 	if (!info->vaddr || ((uintptr_t)info->mapping.iov_base & MASK_2MB) ||
 	    (info->mapping.iov_len & MASK_2MB)) {
-		SPDK_ERRLOG("Invalid memory region vaddr %p, IOVA %#lx-%#lx\n", info->vaddr,
-			    (uintptr_t)info->mapping.iov_base,
-			    (uintptr_t)info->mapping.iov_base + info->mapping.iov_len);
+		SPDK_DEBUGLOG(nvmf_vfio, "Invalid memory region vaddr %p, IOVA %#lx-%#lx\n", info->vaddr,
+			      (uintptr_t)info->mapping.iov_base,
+			      (uintptr_t)info->mapping.iov_base + info->mapping.iov_len);
 		return;
 	}
 
@@ -1156,9 +1156,9 @@ memory_region_remove_cb(vfu_ctx_t *vfu_ctx, vfu_dma_info_t *info)
 
 	if (!info->vaddr || ((uintptr_t)info->mapping.iov_base & MASK_2MB) ||
 	    (info->mapping.iov_len & MASK_2MB)) {
-		SPDK_ERRLOG("Invalid memory region vaddr %p, IOVA %#lx-%#lx\n", info->vaddr,
-			    (uintptr_t)info->mapping.iov_base,
-			    (uintptr_t)info->mapping.iov_base + info->mapping.iov_len);
+		SPDK_DEBUGLOG(nvmf_vfio, "Invalid memory region vaddr %p, IOVA %#lx-%#lx\n", info->vaddr,
+			      (uintptr_t)info->mapping.iov_base,
+			      (uintptr_t)info->mapping.iov_base + info->mapping.iov_len);
 		return 0;
 	}
 
diff --git a/libvfio-user b/libvfio-user
index ba6abc4ce..3acb97477 160000
--- a/libvfio-user
+++ b/libvfio-user
@@ -1 +1 @@
-Subproject commit ba6abc4ce1d01d7253d044f2ec59c4b484d098b9
+Subproject commit 3acb97477f261bf11c866b5764deabe693607bc3