linux-kernel - Re: [PATCH] mm/memcontrol: fix warning in mem_cgroup_page

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Date:   Thu, 7 Jan 2021 10:53:28 +0800
From:   Baoquan He <bhe@...hat.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Hugh Dickins <hughd@...gle.com>, Hui Su <sh_def@....com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Lorenzo Stoakes <lstoakes@...il.com>,
        Michal Hocko <mhocko@...e.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Roman Gushchin <guro@...org>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH] mm/memcontrol: fix warning in mem_cgroup_page_lruvec()

On 01/06/21 at 11:35am, Andrew Morton wrote:
> On Wed, 6 Jan 2021 14:49:35 +0800 Baoquan He <bhe@...hat.com> wrote:
> 
> > > Fixes: 9a1ac2288cf1 ("mm/memcontrol:rewrite mem_cgroup_page_lruvec()")
> > 
> > ...
> >
> > Thanks for fixing this. We also encountered this issue in kdump kernel
> > with the mainline 5.10 kernel since 'cgroup_disable=memory' is added.
> 
> Wait.  9a1ac2288cf1 isn't present in 5.10?
> 

Yes, just checked, commit 9a1ac2288cf1 was merged in 5.11-rc1, not in
5.10.0. Seems Redhat CKI doesn't treat the kernel release correctly, it
calls all kernel 5.11-rcx as 5.10.0. Sorry for the confusion, I will
send mail to them to change this.

I got the failure report from redhat's CKI test, the kernel repo is as
below, but the subject of failure report and 'uname -r' told it's
5.10.0.

       Kernel repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
            Commit: 58cf05f597b0 - Merge tag 'sound-fix-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound