linux-kernel - Re: [PATCH 4.14 023/159] mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM

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Date:   Sun, 07 Jan 2018 10:21:45 +0100
From:   Mike Galbraith <efault@....de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Borislav Petkov <bp@...e.de>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>, linux-mm@...ck.org,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH 4.14 023/159] mm/sparsemem: Allocate mem_section at
 runtime for CONFIG_SPARSEMEM_EXTREME=y

On Sun, 2018-01-07 at 10:11 +0100, Greg Kroah-Hartman wrote:
> On Sun, Jan 07, 2018 at 06:14:22AM +0100, Mike Galbraith wrote:
> > On Fri, 2017-12-22 at 09:45 +0100, Greg Kroah-Hartman wrote:
> > > 4.14-stable review patch.  If anyone has any objections, please let me know.
> > 
> > FYI, this broke kdump, or rather the makedumpfile part thereof.
> >  Forward looking wreckage is par for the kdump course, but...
> 
> Is it also broken in Linus's tree with this patch?  Or is there an
> add-on patch that I should apply to 4.14 to resolve this issue there?

Yeah, it's belly up.  By its very nature, it's gonna get dinged up
regularly.  I only mentioned it because it's not expected that stuff
gets dinged up retroactively.

	-Mike