kernel BUG at include/linux/swapops.h:204! · Igor Raits <hidden> · 2021-07-10
Re: kernel BUG at include/linux/swapops.h:204! · Hillf Danton <hidden> · 2021-07-10
Re: kernel BUG at include/linux/swapops.h:204! · Hugh Dickins <hughd@google.com> · 2021-07-11
Re: kernel BUG at include/linux/swapops.h:204! · Igor Raits <hidden> · 2021-07-11
Re: kernel BUG at include/linux/swapops.h:204! · Igor Raits <hidden> · 2021-07-15
Re: kernel BUG at include/linux/swapops.h:204! · Hugh Dickins <hughd@google.com> · 2021-07-16
Re: kernel BUG at include/linux/swapops.h:204! · Hugh Dickins <hughd@google.com> · 2021-07-19
Re: kernel BUG at include/linux/swapops.h:204! · Peter Xu <peterx@redhat.com> · 2021-07-19
Re: kernel BUG at include/linux/swapops.h:204! · Hugh Dickins <hughd@google.com> · 2021-07-19
Re: kernel BUG at include/linux/swapops.h:204! · Peter Xu <peterx@redhat.com> · 2021-07-20
Re: kernel BUG at include/linux/swapops.h:204! · Hugh Dickins <hughd@google.com> · 2021-07-20
Re: kernel BUG at include/linux/swapops.h:204! · Igor Raits <hidden> · 2021-07-20
Re: kernel BUG at include/linux/swapops.h:204! · Peter Xu <peterx@redhat.com> · 2021-07-20
Re: kernel BUG at include/linux/swapops.h:204! · Igor Raits <hidden> · 2021-07-20
[PATCH stable 5.13.y/5.12.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Peter Xu <peterx@redhat.com> · 2021-07-20
[PATCH stable 5.13.y/5.12.y 2/2] mm/userfaultfd: fix uffd-wp special cases for fork() · Peter Xu <peterx@redhat.com> · 2021-07-20
[PATCH stable 5.13.y/5.12.y 1/2] mm/thp: simplify copying of huge zero page pmd when fork · Peter Xu <peterx@redhat.com> · 2021-07-20
Re: [PATCH stable 5.13.y/5.12.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Hugh Dickins <hughd@google.com> · 2021-07-20
Re: [PATCH stable 5.13.y/5.12.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Greg KH <hidden> · 2021-07-22
[PATCH stable 5.10.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Peter Xu <peterx@redhat.com> · 2021-07-20
[PATCH stable 5.10.y 2/2] mm/userfaultfd: fix uffd-wp special cases for fork() · Peter Xu <peterx@redhat.com> · 2021-07-20
[PATCH stable 5.10.y 1/2] mm/thp: simplify copying of huge zero page pmd when fork · Peter Xu <peterx@redhat.com> · 2021-07-20
Re: [PATCH stable 5.10.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Hugh Dickins <hughd@google.com> · 2021-07-20
Re: [PATCH stable 5.10.y 0/2] mm/thp: Fix uffd-wp with fork(); crash on pmd migration entry on fork · Greg KH <gregkh@linuxfoundation.org> · 2021-07-22

Re: kernel BUG at include/linux/swapops.h:204!

From: Peter Xu <peterx@redhat.com>
Date: 2021-07-20 16:02:09

Hi, Igor,

On Tue, Jul 20, 2021 at 09:47:02AM +0200, Igor Raits wrote:

FTR, even though 8f34f1eac382 applies cleanly it does not compile.
The 1st patch of that series is also required (5fc7a5f6fd04) - it removes
use of
*vma, which is later removed by the patch that fixes the actual problem.

Please feel free to give it a shot with the two backport series to see whether
you spot any issue with it so far.

5.13/5.12: https://lore.kernel.org/linux-mm/20210720155150.497148-1-peterx@redhat.com (local)
5.10:      https://lore.kernel.org/linux-mm/20210720155657.499127-1-peterx@redhat.com (local)

Sorry for the trouble.

-- 
Peter Xu

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