diff -Naur host/arch/i386/kernel/sys_i386.c host-ptrace/arch/i386/kernel/sys_i386.c
--- host/arch/i386/kernel/sys_i386.c	Mon Mar 19 15:35:09 2001
+++ host-ptrace/arch/i386/kernel/sys_i386.c	Mon Nov 11 17:23:25 2002
@@ -55,9 +55,9 @@
 			goto out;
 	}
 
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap_pgoff(current->mm, file, addr, len, prot, flags, pgoff);
+	up_write(&current->mm->mmap_sem);
 
 	if (file)
 		fput(file);