diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 557b2ab..d503027 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -207,6 +207,9 @@
 	unsigned long addr;
 	int i;
 
+	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
+		return;
+
 	pud = pud_offset(pgd, 0);
 
  	for (addr = i = 0; i < PREALLOCATED_PMDS;