On Tue, Aug 27, 2013 at 12:37:18PM +0400, Cyrill Gorcunov wrote: > On Mon, Aug 26, 2013 at 06:28:33PM -0400, Dave Jones wrote: > > > > > > I've not tried matching up bits with Dave's reports, and just going > > > into a meeting now, but this patch looks worth a try: probably Cyrill > > > can improve it meanwhile to what he actually wants there (I'm > > > surprised anything special is needed for just moving a pte). > > > > > > Hugh > > > > > > --- 3.11-rc7/mm/mremap.c 2013-07-14 17:10:16.640003652 -0700 > > > +++ linux/mm/mremap.c 2013-08-26 14:46:14.460027627 -0700 > > > @@ -126,7 +126,7 @@ static void move_ptes(struct vm_area_str > > > continue; > > > pte = ptep_get_and_clear(mm, old_addr, old_pte); > > > pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr); > > > - set_pte_at(mm, new_addr, new_pte, pte_mksoft_dirty(pte)); > > > + set_pte_at(mm, new_addr, new_pte, pte); > > > } > > > > I'll give this a shot once I'm done with the bisect. > > I managed to trigger the issue as well. The patch below fixes it. > Dave, could you please give it a shot once time permit? Seems to do the trick. Tested-by: Dave Jones <davej@xxxxxxxxxxxxxxxxx> Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>