BUG: list_add corruption while doing migrate_swap -> balance_push

[Mel Gorman]

On Tue, Sep 06, 2022 at 08:54:58PM +0800, Kuyo Chang wrote:
> Hi,
> 
> [Syndrome]
> A list_add corruption error at kernel-5.15, the log shows.
> list_add corruption. prev->next should be next (ffffff81a6f08ba0), but
> was 0000000000000000. (prev=ffffff81a6f05930).
> 

Is this a vanilla 5.15 kernel or modified? Does it happen on 5.19 or
6.0-rc4? Given that this appears to be a bug triggered by NUMA balancing
racing against memory hotplug, is there a reproducer for this?

-- 
Mel Gorman
SUSE Labs