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Date:	Wed, 6 Jan 2016 18:55:27 -0500
From:	Dave Jones <davej@...emonkey.org.uk>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	x86@...nel.org
Subject: weird DirectMap2M accounting.

I just spotted this in /proc/meminfo on an old Core2 machine with 4G.

DirectMap2M:    18446744073709543424 kB

Looks like we subtracted 8192 from 0 somewhere.

Should split_page_count() be checking that direct_pages_count > 0 ?

	Dave

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