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From:   Qian Cai <cai@lca.pw>
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Subject: Re: [PATCH] hugetlb: Add nohugepages parameter to prevent hugepages creation
Date:   Fri, 11 Oct 2019 19:52:48 -0400
Message-Id: <4641B95A-6DD8-4E8A-AD53-06E7B72D956C@lca.pw>
References: <CAHD1Q_ynd6f2Jc54k1D9JjmtD6tGhkDcAHRzd5nZt5LUdQTvaw@mail.gmail.com>
Cc:     linux-mm@kvack.org, mike.kravetz@oracle.com,
        linux-kernel@vger.kernel.org,
        Jay Vosburgh <jay.vosburgh@canonical.com>,
        "Guilherme G. Piccoli" <kernel@gpiccoli.net>
In-Reply-To: <CAHD1Q_ynd6f2Jc54k1D9JjmtD6tGhkDcAHRzd5nZt5LUdQTvaw@mail.gmail.com>
To:     Guilherme Piccoli <gpiccoli@canonical.com>
Sender: linux-kernel-owner@vger.kernel.org
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> On Oct 11, 2019, at 7:42 PM, Guilherme Piccoli <gpiccoli@canonical.com> wr=
ote:
>=20
> Thanks for the quick response. Kdump in Ubuntu, for example, rely in
> mounting the root filesystem.
> Even in initrd-only approaches, we could have sysctl.conf being copied
> to initramfs, and hugepages end-up getting set.

It simply error-prone to reuse the sysctl.conf from the first kernel, as it c=
ould contains lots of things that will kill kdump kernel.=