linux-kernel - kmemleak: Early log buffer exceeded (525980) during boot

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Message-ID: <1541712198.12945.12.camel@gmx.us>
Date:   Thu, 08 Nov 2018 16:23:18 -0500
From:   Qian Cai <cai@....us>
To:     linux-kernel@...r.kernel.org
Cc:     Catalin Marinas <catalin.marinas@....com>
Subject: kmemleak: Early log buffer exceeded (525980) during boot

The maximum value for DEBUG_KMEMLEAK_EARLY_LOG_SIZE is only 40000, so it
disables kmemleak every time on this aarch64 server running the latest mainline
(b00d209).

# echo scan > /sys/kernel/debug/kmemleak 
-bash: echo: write error: Device or resource busy

Any idea on how to enable kmemleak there?