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From: Andrew Morton <akpm@linux-foundation.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Deepanshu Kartikey <kartikey406@gmail.com>,
	syzbot <syzbot+079a3b213add54dd18a7@syzkaller.appspotmail.com>,
	cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, mhocko@kernel.org, roman.gushchin@linux.dev,
	shakeel.butt@linux.dev, syzkaller-bugs@googlegroups.com,
	Muchun Song <muchun.song@linux.dev>,
	Minchan Kim <minchan@kernel.org>, Kairui Song <ryncsn@gmail.com>
Subject: Re: [syzbot] [cgroups?] [mm?] WARNING in memcg1_swapout
Date: Wed, 21 Jan 2026 08:35:26 -0800	[thread overview]
Message-ID: <20260121083526.81996ffd70ff4efc8484fd4d@linux-foundation.org> (raw)
In-Reply-To: <aXDponX2AQoACOaI@cmpxchg.org>

On Wed, 21 Jan 2026 09:58:42 -0500 Johannes Weiner <hannes@cmpxchg.org> wrote:

> > > I tested with the latest linux-next in sysbot. It is working fine
> > 
> > Great, thanks.  But we still don't have review for this one.
> 
> IOW, this is not necessary anymore. Kairui's (cc'd) fix which you
> picked up fixed the syzbot reported problem.
> 
> > For some reason I don't have cc:stable on this - could people
> > make a recommendation?
> 
> So this:
> 
> > From: Deepanshu Kartikey <kartikey406@gmail.com>
> > Subject: mm/swap_cgroup: fix kernel BUG in swap_cgroup_record
> 
> can be dropped.
> 

OK, thanks, I'll drop Deepanshu's "mm/swap_cgroup: fix kernel BUG in
swap_cgroup_record".  I understand that Kairui's
mm-swap-use-swap-cache-as-the-swap-in-synchronize-layer-fix
(https://lkml.kernel.org/r/CAMgjq7CGUnzOVG7uSaYjzw9wD7w2dSKOHprJfaEp4CcGLgE3iw@mail.gmail.com)
has addressed this mm-unstable issue.


However Deepanshu's "mm/swap_cgroup: fix kernel BUG in
swap_cgroup_record" has

	Fixes: 1a4e58cce84e ("mm: introduce MADV_PAGEOUT")

Which I assume was mistaken?

  reply	other threads:[~2026-01-21 16:35 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-17  9:30 [syzbot] [cgroups?] [mm?] WARNING in memcg1_swapout syzbot
2026-01-18  0:57 ` Andrew Morton
2026-01-18  4:21   ` Deepanshu Kartikey
2026-01-18  7:01     ` Deepanshu Kartikey
2026-01-18 20:53       ` Andrew Morton
2026-01-20 21:20         ` Shakeel Butt
2026-01-21 14:58         ` Johannes Weiner
2026-01-21 16:35           ` Andrew Morton [this message]
2026-01-21 17:01             ` Johannes Weiner
2026-01-18  5:02 ` Forwarded: [PATCH] mm/vmscan: test build to verify VM_WARN_ON_ONCE fix syzbot
     [not found] <20260118050237.1262510-1-kartikey406@gmail.com>
2026-01-18  6:39 ` [syzbot] [cgroups?] [mm?] WARNING in memcg1_swapout syzbot

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