Use FEC_U instead of (1<<2)

aba6e75b · Silas Boyd-Wickizer · 40aa2f94 · aba6e75b
--- a/kernel/trap.cc
+++ b/kernel/trap.cc
@@ -62,7 +62,7 @@ do_pagefault(struct trapframe *tf)
    tf->rax = -1;
    tf->rip = (u64)__fetch_end;
    return 0;
-  } else if (tf->err & (1<<2)) {
+  } else if (tf->err & FEC_U) {
      sti();
      if(pagefault(myproc()->vmap, addr, tf->err) >= 0){
 #if MTRACE