linux-kernel - Re: [PATCH 2/2] mm/page_alloc: Allow high-order pages to be stored on the per-cpu lists

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Message-Id: <20210610155940.7d0e1430fd15461d9dabb2d4@linux-foundation.org>
Date:   Thu, 10 Jun 2021 15:59:40 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Zi Yan <ziy@...dia.com>
Cc:     Mel Gorman <mgorman@...hsingularity.net>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...nel.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH 2/2] mm/page_alloc: Allow high-order pages to be stored
 on the per-cpu lists

On Thu, 10 Jun 2021 07:40:47 -0400 Zi Yan <ziy@...dia.com> wrote:

> >> The attached config has THP disabled. The VM cannot boot with THP enabled,
> >> either.
> >>
> >
> > There is not a lot of information to go on here. Can you confirm that a
> > revert of that specific patch from mmotm-2021-06-07-18-33 also boots? It
> > sounds like your console log is empty, does anything useful appear if
> > you add "earlyprintk=serial,ttyS0,115200" to the kernel command line?
> 
> Sure. I can confirm that reverting the patch makes the VM boot.
> The important information I forgot to mention is that after I remove
> the NUMA setting in the QEMU, the VM can boot too.

Thanks, I'll drop
mm-page_alloc-allow-high-order-pages-to-be-stored-on-the-per-cpu-lists.patch
for now.