linux-kernel - Re: dpkg fails on sparc64 (was: [PATCH v4 4/7] mm/thp: Carry over dirty bit when thp splits on pmd)

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Date:   Wed, 2 Nov 2022 14:34:17 -0400
From:   Peter Xu <peterx@...hat.com>
To:     Anatoly Pugachev <matorola@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     David Miller <davem@...emloft.net>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Hugh Dickins <hughd@...gle.com>,
        "Kirill A . Shutemov" <kirill@...temov.name>,
        Alistair Popple <apopple@...dia.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Minchan Kim <minchan@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Andi Kleen <andi.kleen@...el.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Huang Ying <ying.huang@...el.com>,
        Vlastimil Babka <vbabka@...e.cz>, sparclinux@...r.kernel.org
Subject: Re: dpkg fails on sparc64 (was: [PATCH v4 4/7] mm/thp: Carry over
 dirty bit when thp splits on pmd)

On Tue, Nov 01, 2022 at 04:13:20PM +0300, Anatoly Pugachev wrote:
> On Tue, Oct 25, 2022 at 5:43 PM Peter Xu <peterx@...hat.com> wrote:
> >
> > On Tue, Oct 25, 2022 at 01:22:45PM +0300, Anatoly Pugachev wrote:
> > > On Sun, Oct 23, 2022 at 10:53 PM Peter Xu <peterx@...hat.com> wrote:
> > > > On Fri, Oct 21, 2022 at 07:06:03PM +0300, Anatoly Pugachev wrote:
> > > > >
> > > > >     Link: https://lkml.kernel.org/r/20220811161331.37055-5-peterx@redhat.com
> >
> > Maybe we need to have the minimum revert for v6.1 before we have more
> > clues.
> 
> Just a quick update on 6.1.0-rc3
> 
> Tested again with 6.1.0-rc3, segfaults dpkg... applied patch - no dpkg
> segfaults.

Andrew, shall we apply the minimum revert for this patch for now?  The
one-liner was attached in this email I replied to Anatoly:

https://lore.kernel.org/all/Y1Wbi4yyVvDtg4zN@x1n/

Thanks,

-- 
Peter Xu