movl $512,%ecx # 512 = 4096/8

I have a sucky assembler apparently

movl $512,%ecx # 512 = 4096/8
41530e6b · Frans Kaashoek · Silas Boyd-Wickizer · 3559f5dd · 41530e6b
--- a/kernel/uaccess.S
+++ b/kernel/uaccess.S
@@ -68,7 +68,7 @@ __uaccess_end:
 .globl zpage
 .align 8
 zpage:
-        movl $4096/8,%ecx
+        movl $512,%ecx   # 512 = 4096/8
 	xorl %eax,%eax
 	rep stosq
 	ret