linux-kernel - Re: [PATCH -next] mm/kmemleak: increase the max mem pool to 1M

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Message-ID: <20190815085817.GA9352@arrakis.emea.arm.com>
Date:   Thu, 15 Aug 2019 09:58:18 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Qian Cai <cai@....pw>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] mm/kmemleak: increase the max mem pool to 1M

On Wed, Aug 14, 2019 at 02:32:52PM -0400, Qian Cai wrote:
> There are some machines with slow disk and fast CPUs. When they are
> under memory pressure, it could take a long time to swap before the OOM
> kicks in to free up some memory. As the results, it needs a large
> mem pool for kmemleak or suffering from higher chance of a kmemleak
> metadata allocation failure. 524288 proves to be the good number for all
> architectures here. Increase the upper bound to 1M to leave some room
> for the future.
> 
> Signed-off-by: Qian Cai <cai@....pw>

Acked-by: Catalin Marinas <catalin.marinas@....com>