On Thu, 21 Dec 2023 12:32:04 +0100 David Hildenbrand <david@xxxxxxxxxx> wrote:
> On 21.12.23 12:23, Oliver Sang wrote:
> > hi, Andrew Morton,
> >
> > On Wed, Dec 20, 2023 at 02:11:35PM -0800, Andrew Morton wrote:
> >> On Tue, 19 Dec 2023 23:46:50 +0800 kernel test robot <oliver.sang@xxxxxxxxx> wrote:
> >>
> >>>
> >>>
> >>> Hello,
> >>>
> >>> kernel test robot noticed "kernel_BUG_at_mm/memory.c" on:
> >>>
> >>> commit: bbcbf2a3f05f74f9d268eab57abbdce6a65a94ad ("mm: convert ksm_might_need_to_copy() to work on folios")
> >>
> >> I assume this is a bisection result, so it's quite repeatable?
> >
> > yes, we bisect to this commit, it's quite repeatable:
> >
> > ddd06bb63d9793ce bbcbf2a3f05f74f9d268eab57ab
> > ---------------- ---------------------------
> > fail:runs %reproduction fail:runs
> > | | |
> > :6 100% 6:6 dmesg.Kernel_panic-not_syncing:Fatal_exception
> > :6 100% 6:6 dmesg.RIP:do_swap_page
> > :6 100% 6:6 dmesg.invalid_opcode:#[##]
> > :6 100% 6:6 dmesg.kernel_BUG_at_mm/memory.c
> >
> >
>
> Can you try with the snipped I sent? Please let me know if you need a
> full patch for testing purposes.
I think a full patch would be better, please.
