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Message-ID: <b170af450808290930x29f57941k57d2a08d89977ca2@mail.gmail.com>
Date: Fri, 29 Aug 2008 18:30:51 +0200
From: "=?UTF-8?Q?Rafa=C5=82_Mi=C5=82ecki?=" <zajec5@gmail.com>
To: "Hugh Dickins" <hugh@veritas.com>
Subject: Re: [PATCH RFC] x86: check for and defend against BIOS memory corruption
Cc: "Alan Jenkins" <alan-jenkins@tuffmail.co.uk>,
       "Alan Cox" <alan@lxorguk.ukuu.org.uk>,
       "Jeremy Fitzhardinge" <jeremy@goop.org>,
       "Yinghai Lu" <yhlu.kernel@gmail.com>, "Ingo Molnar" <mingo@elte.hu>,
       "H. Peter Anvin" <hpa@zytor.com>,
       "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
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2008/8/29 Hugh Dickins <hugh@veritas.com>:> On Fri, 29 Aug 2008, Alan Jenkins wrote:>> Rafał Miłecki wrote:>> >>> > I tried your patch anyway (after applying Jeremy's patch of course)>> > and it doesn't seem to work. The only output is:>> > scanning 2 areas for BIOS corruption>> > after using s2ram. I do not get any>> > Corrupted low memory at*>> >>> It seemed to work for me.  Did you remember to plug HDMI to trigger the>> corruption before you used s2ram?>> I hope that's what got missed.
Ah, stupid mistake, sorry! Indeed, using HDMI and s2ram later works fine:
Corrupted low memory at ffff88000000be98 (be98 phys) = b02a000400000000 [<ffffffff8020fc9c>] check_for_bios_corruption+0x94/0xa0
-- Rafał Miłecki????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m????????????I?