[PATCH v2 1/3] arm64: mm: print out correct page table entries
Will Deacon
will.deacon at arm.com
Fri Jun 9 09:33:29 PDT 2017
On Fri, Jun 09, 2017 at 05:04:07PM +0100, Mark Rutland wrote:
> On Fri, Jun 09, 2017 at 04:35:52PM +0100, Kristina Martsenko wrote:
> > /*
> > - * Dump out the page tables associated with 'addr' in mm 'mm'.
> > + * Dump out the page tables associated with 'addr' in the currently active mm.
> > */
> > -void show_pte(struct mm_struct *mm, unsigned long addr)
> > +void show_pte(unsigned long addr)
> > {
> > + struct mm_struct *mm;
> > pgd_t *pgd;
> >
> > - if (!mm)
> > + if (addr < TASK_SIZE) {
> > + /* TTBR0 */
> > + mm = current->active_mm;
>
> Can we log something for the active_mm == &init_mm case?
>
> e.g.
>
> if (addr < TASK_SIZE) {
> if (current->active_mm == &init_mm)
> pr_alert("[%016lx] address in unknown TTBR0 range\n",
> addr);
I don't understand the case you're trying to highlight here, nor which
table you want to walk.
Will
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