fiasco r52 on beagleboard xm

[Sin-ta Hsiea]

Hi,

I've tried running r47 fiasco kernel on beagleboard xm platform, it
was fine, but after upgrading sources to r52, it broke.

Output message hang after this line.
  Hello from Startup::stage2

After debugged using JTAG, I found that after page table modified, MMU
still can't translate that address.
So I add this line to source:

--- src/kern/arm/paging-arm.cpp (revision 52)
+++ src/kern/arm/paging-arm.cpp (working copy)
@@ -348,6 +348,7 @@
 void
 Pte_ptr::write_back_if(bool, Mword asid = Mem_unit::Asid_invalid)
 {
+  Mem_unit::clean_dcache(pte);
   if (asid != Mem_unit::Asid_invalid)
     Mem_unit::tlb_flush(asid);
 }

Then output message hang after this line:
  Calibrating timer loop... done.

It seems that MMU doesn't notice page table was switched to sigma0's pagetable.

I also tried pandaboard, it just works fine.

Does anybody have idea how to fix this?

Best regard,
SIn-ta Hsiea