"Naveen N. Rao" <naveen.n....@linux.vnet.ibm.com> writes:
> diff --git a/arch/powerpc/kernel/exceptions-64s.S
> b/arch/powerpc/kernel/exceptions-64s.S
> index ae418b85c17c..17ee701b8336 100644
> --- a/arch/powerpc/kernel/exceptions-64s.S
> +++ b/arch/powerpc/kernel/exceptions-64s.S
> @@ -1442,7 +1440,9 @@ do_hash_page:
>
> /* Here we have a page fault that hash_page can't handle. */
> handle_page_fault:
> -11: ld r4,_DAR(r1)
> + andis. r0,r4,DSISR_DABRMATCH@h
> + bne- handle_dabr_fault
This broke hash. Please test hash! :)
I added:
@@ -1438,11 +1436,16 @@ do_hash_page:
/* Error */
blt- 13f
+
+ /* Reload DSISR into r4 for the DABR check below */
+ ld r4,_DSISR(r1)
#endif /* CONFIG_PPC_STD_MMU_64 */
/* Here we have a page fault that hash_page can't handle. */
handle_page_fault:
cheers
