diff --git a/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c b/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
--- a/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
@@ -336,8 +336,9 @@
 		 */
 		addr = 0;
 		error = vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr,
-		    FASTTRAP_SCRBLOCK_SIZE, 0, VMFS_ANY_SPACE, VM_PROT_ALL,
-		    VM_PROT_ALL, 0);
+		    FASTTRAP_SCRBLOCK_SIZE, 0, VMFS_ANY_SPACE,
+		    VM_PROT_READ | VM_PROT_EXECUTE,
+		    VM_PROT_READ | VM_PROT_EXECUTE, MAP_COPY_ON_WRITE);
 		if (error != KERN_SUCCESS)
 			goto done;
 
diff --git a/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c b/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c
--- a/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c
+++ b/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c
@@ -1666,7 +1666,7 @@
 
 		ASSERT(i <= sizeof (scratch));
 
-		if (fasttrap_copyout(scratch, (char *)addr, i)) {
+		if (uwrite(curproc, scratch, i, addr) != 0) {
 			fasttrap_sigtrap(p, curthread, pc);
 			new_pc = pc;
 			break;