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From: Catalin Marinas <>
To: "Isaac J. Manjarres" <>
Cc: Andrew Morton <>,
	Rob Herring <>,
	Frank Rowand <>,, Saravana Kannan <>,, Calvin Zhang <>,,,
Subject: Re: [PATCH v1] Revert "mm: kmemleak: alloc gray object for reserved region with direct map"
Date: Wed, 25 Jan 2023 13:29:32 +0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, Jan 24, 2023 at 03:02:54PM -0800, Isaac J. Manjarres wrote:
> This reverts commit 972fa3a7c17c9d60212e32ecc0205dc585b1e769.
> Kmemleak operates by periodically scanning memory regions for pointers
> to allocated memory blocks to determine if they are leaked or not.
> However, reserved memory regions can be used for DMA transactions
> between a device and a CPU, and thus, wouldn't contain pointers to
> allocated memory blocks, making them inappropriate for kmemleak to
> scan. Thus, revert this commit.
> Cc: # 5.17+
> Cc: Calvin Zhang <>
> Signed-off-by: Isaac J. Manjarres <>

Acked-by: Catalin Marinas <>

  reply	other threads:[~2023-01-25 13:29 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-24 23:02 [PATCH v1] Revert "mm: kmemleak: alloc gray object for reserved region with direct map" Isaac J. Manjarres
2023-01-25 13:29 ` Catalin Marinas [this message]
2023-01-27 21:38 ` Rob Herring
2023-01-27 21:40   ` Rob Herring

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