linux-kernel - Re: [PATCH v3] mm: fix panic in __alloc

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Message-ID: <FD8165E2-E17E-458E-B4EE-8C4DB21BA3B6@vmware.com>
Date:   Tue, 21 Dec 2021 05:46:16 +0000
From:   Alexey Makhalov <amakhalov@...are.com>
To:     Michal Hocko <mhocko@...e.com>
CC:     Dennis Zhou <dennis@...nel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>, Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH v3] mm: fix panic in __alloc_pages

Hi Michal,

The patchset looks good to me. I didn’t find any issues during the testing.
I have one concern regarding dmesg output. Do you think this messaging is
valid if possible node is not yet present?
Or is it only the issue for virtual machines?

  Node XX uninitialized by the platform. Please report with boot dmesg.
  Initmem setup node XX [mem 0x0000000000000000-0x0000000000000000]

Thanks,
—Alexey