diff -ru source900/vmmon-only/linux/hostif.c source/vmmon-only/linux/hostif.c
--- source900/vmmon-only/linux/hostif.c		2012-07-23 18:18:55.000000000 +0900
+++ source/vmmon-only/linux/hostif.c	    2012-08-03 16:20:23.200420885 +0900
@@ -47,6 +47,7 @@
 
 #include <linux/smp.h>
 
+#include <asm/asm.h>
 #include <asm/io.h>
 #include <linux/mc146818rtc.h>
 #include <linux/capability.h>
@@ -4118,7 +4119,6 @@
                  uint64 *val)        // OUT: MSR value
 {
    int ret;
-#if defined(VM_X86_64)
    unsigned low, high;
 
    asm volatile("2: rdmsr ; xor %0,%0\n"
@@ -4126,27 +4126,10 @@
                 ".section .fixup,\"ax\"\n\t"
                 "3: mov %4,%0 ; jmp 1b\n\t"
                 ".previous\n\t"
-                ".section __ex_table,\"a\"\n\t"
-                ".balign 8\n"
-                ".quad 2b,3b\n"
-                ".previous\n"
+                _ASM_EXTABLE(2b,3b)
                 : "=r"(ret), "=a"(low), "=d"(high)
                 : "c"(msr), "i"(-EFAULT), "1"(0), "2"(0)); // init eax/edx to 0
    *val = (low | ((u64)(high) << 32));
-#else
-   asm volatile("2: rdmsr ; xor %0,%0\n"
-                "1:\n\t"
-                ".section .fixup,\"ax\"\n\t"
-                "3: mov %3,%0 ; jmp 1b\n\t"
-                ".previous\n\t"
-                ".section __ex_table,\"a\"\n"
-                ".balign 4\n"
-                ".long 2b,3b\n"
-                ".previous\n"
-                : "=r"(ret), "=A"(*val)
-                : "c"(msr), "i"(-EFAULT), "1"(0)); // init rax to 0
-
-#endif // VM_X86_64
 
    return ret;
 }