On Wed, Aug 21, 2013 at 04:04:54PM -0700, Linus Torvalds wrote: > On Wed, Aug 21, 2013 at 12:03 PM, Cyrill Gorcunov <gorcu...@gmail.com> wrote: > > > > I personally don't see bug here because > > > > - this swapped page soft dirty bit is set for non-present entries only, > > never for present ones, just at moment we form swap pte entry > > > > - i don't find any code which would test for this bit directly without > > is_swap_pte call > > Ok, having gone through the places that use swp_*soft_dirty(), I have > to agree. Afaik, it's only ever used on a swap-entry that has (by > definition) the P bit clear. So with or without Xen, I don't see how > it can make any difference. > > David/Konrad - did you actually see any issues, or was this just from > (mis)reading the code?
Could this explain what I'm seeing in another thread ? https://lkml.org/lkml/2013/8/7/27 Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
