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Date:   Thu, 30 Aug 2018 16:50:37 +0300
From:   "Kirill A. Shutemov" <>
To:     Baoquan He <>
Subject: Re: [PATCH 3/3] x86/kdump/64: Change the upper limit of crashkernel

On Wed, Aug 29, 2018 at 10:16:24PM +0800, Baoquan He wrote:
> Restrict kdump to only reserve crashkernel below 64TB. Since the kdump
> jumping may be from 5-level to 4-level, and the kdump kernel is put
> above 64TB in 5-level kernel, then the jumping will fail. And the
> crashkernel reservation is done during the 1st kernel bootup, there's
> no way to detect the paging mode of kdump kernel at that time.
> Hence change the upper limmit of crashkernel reservation to 64TB


 Kirill A. Shutemov

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