Date:   Sat, 27 Nov 2021 16:07:18 -0800
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Calvin Zhang <calvinzhang.cool@gmail.com>
Cc:     Christoph Hellwig <hch@lst.de>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Rob Herring <robh+dt@kernel.org>,
        Frank Rowand <frowand.list@gmail.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, iommu@lists.linux-foundation.org
Subject: Re: [PATCH] mm: kmemleak: Ignore kmemleak scanning on CMA regions
Message-Id: <20211127160718.54e82aa93c977a367404a9e3@linux-foundation.org>
In-Reply-To: <20211126024711.54937-1-calvinzhang.cool@gmail.com>
References: <20211126024711.54937-1-calvinzhang.cool@gmail.com>
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On Fri, 26 Nov 2021 10:47:11 +0800 Calvin Zhang <calvinzhang.cool@gmail.com> wrote:

> Just like this:
> commit 620951e27457 ("mm/cma: make kmemleak ignore CMA regions").
> 
> Add kmemleak_ignore_phys() for CMA created from of reserved node.

Could we please have a full, standalone changelog for this patch?

The 620951e27457 changelog says "Without this, the kernel crashes...". 
Does your patch also fix a crash?  If so under what circumstances and
should we backport this fix into -stable kernels?

Etcetera.