diff -r f348cf78072c src/arch/mips/tlb.cc
--- a/src/arch/mips/tlb.cc	Thu Jan 12 10:15:00 2012 -0500
+++ b/src/arch/mips/tlb.cc	Fri Jan 13 03:22:43 2012 +0800
@@ -330,7 +330,8 @@
       } else {
         VPN = ((vaddr >> 11) & 0xFFFFFFFC);
       }
-      uint8_t Asid = req->getAsid();
+      // TODO: check the function of req->getAsid and req->setAsid
+      uint8_t Asid = tc->readMiscReg(MISCREG_ENTRYHI);
       if (misaligned) {
           // Unaligned address!
           return new AddressErrorFault(vaddr, false);
@@ -423,7 +424,8 @@
         if (smallPages == 1) {
             VPN = vaddr >> 11;
         }
-        uint8_t Asid = req->getAsid();
+        // TODO: check the function of req->getAsid and req->setAsid
+        uint8_t Asid = tc->readMiscReg(MISCREG_ENTRYHI);
         PTE *pte = lookup(VPN, Asid);
         if (misaligned) {
             return new AddressErrorFault(vaddr, true);