Hi,
Erhard Furtner <erhar...@mailbox.org> writes:
> Greetings!
>
> Kernel 6.5.5 boots fine on my PowerMac G5 11,2 but kernel 6.6-rc3 fails to
> boot with following dmesg shown on the OpenFirmware console (transcribed
> screenshot):
> I bisected the issue and got 9fee28baa601f4dbf869b1373183b312d2d5ef3d as 1st
> bad commit:
>
Can you check this change?
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 3ba9fe411604..6d144fedd557 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -187,8 +187,8 @@ static pte_t set_access_flags_filter(pte_t pte, struct
vm_area_struct *vma,
/*
* set_pte stores a linux PTE into the linux page table.
*/
-void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
- pte_t pte, unsigned int nr)
+static void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
+ pte_t pte)
{
/*
* Make sure hardware valid bit is not set. We don't do
@@ -203,16 +203,23 @@ void set_ptes(struct mm_struct *mm, unsigned long addr,
pte_t *ptep,
pte = set_pte_filter(pte);
/* Perform the setting of the PTE */
- arch_enter_lazy_mmu_mode();
+ __set_pte_at(mm, addr, ptep, pte, 0);
+}
+
+/*
+ * set_pte stores a linux PTE into the linux page table.
+ */
+void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
+ pte_t pte, unsigned int nr)
+{
+ /* Perform the setting of the PTE */
for (;;) {
- __set_pte_at(mm, addr, ptep, pte, 0);
+ set_pte_at(mm, addr, ptep, pte);
if (--nr == 0)
break;
ptep++;
- pte = __pte(pte_val(pte) + (1UL << PTE_RPN_SHIFT));
addr += PAGE_SIZE;
}
- arch_leave_lazy_mmu_mode();
}
void unmap_kernel_page(unsigned long va)
