Re: [PATCH RESEND] mm: fix tick_sched timer blocked by pgdat_resize_lock

[Andrew Morton]

On Tue, 4 Feb 2020 15:24:38 +0800 Shile Zhang <shile.zhang@xxxxxxxxxxxxxxxxx> wrote:

> Hi, Andrew,
> 
> Sorry for ping, could you please also help to check this issue?
> Any comments from you is welcome!
> 

Kirill's suggestion isn't pretty but it appears that it will work OK -
redo deferred_init_memmap() so it releases 1024(?) pages at a time,
releasing and retaking pgdat_resize_lock/unlock each time around?