Minor - reset data segments in post32 entry point.
diff --git a/src/romlayout.S b/src/romlayout.S
index 75769c2..73b7774 100644
--- a/src/romlayout.S
+++ b/src/romlayout.S
@@ -431,6 +431,12 @@
         cld
         lidtl (BUILD_BIOS_ADDR + pmode_IDT_info)
         lgdtl (BUILD_BIOS_ADDR + rombios32_gdt_48)
+        movl $SEG32_MODE32_DS, %eax
+        movw %ax, %ds
+        movw %ax, %es
+        movw %ax, %fs
+        movw %ax, %gs
+        movw %ax, %ss
         movl $BUILD_STACK_ADDR, %esp
         ljmpl $SEG32_MODE32_CS, $_code32__start