Re: [syzbot] [cgroups?] [mm?] WARNING in memcg1_swapout

[Andrew Morton]

On Wed, 21 Jan 2026 09:58:42 -0500 Johannes Weiner <hannes@xxxxxxxxxxx> 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@xxxxxxxxx>
> > 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@xxxxxxxxxxxxxx)
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?