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Date: Tue, 21 Feb 2017 23:14:25 +0100
From: Pavel Machek <pavel@ucw.cz>
To: kernel list <linux-kernel@vger.kernel.org>, arjan@infradead.org,
        mingo@elte.hu, tglx@linutronix.de
Subject: 4.10 kernel on thinkpad x220: rodata_test: test data was not read
 only
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Hi!

I'm getting

[    3.822386] VFS: Mounted root (ext4 filesystem) readonly on device
8:4.
[    3.840420] devtmpfs: mounted
[    3.842346] Freeing unused kernel memory: 536K
[    3.844081] Write protecting the kernel text: 11764k
[    3.845753] Write protecting the kernel read-only data: 4780k
[    3.847326] rodata_test: test data was not read only
[    3.848906] NX-protecting the kernel data: 6668k
[    3.850662] x86/mm: Checked W+X mappings: passed, no W+X pages
found.

I guess that means that kernel hardening does not work as
expected... 32bit kernel on thinkpad x220.

Git blame points to

commit edeed30589f5defe63ce6aaae56f2b7c855e4520
Author: Arjan van de Ven <arjan@infradead.org>
Date:   Wed Jan 30 13:34:08 2008 +0100

    x86: add testcases for RODATA and NX protections/attributes

Any ideas?
									Pavel

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