linux-kernel - Re: [RFT] x86 acpi: normalize segment descriptor register on resume

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <cb0375e10807160713r5aa2bb82md1e0b3b349ca8115@mail.gmail.com>
Date:	Wed, 16 Jul 2008 10:13:54 -0400
From:	"Andrew Lutomirski" <luto@...ealbox.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Andi Kleen" <andi@...stfloor.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Matthew Garrett" <mjg59@...f.ucam.org>,
	"Ingo Molnar" <mingo@...e.hu>,
	public-kernel-testers-u79uwXL29TY76Z2rM5mHXA@...gmane.org,
	"ACPI Devel Maling List" <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"pm list" <linux-pm@...ts.linux-foundation.org>,
	"Pavel Machek" <pavel@....cz>
Subject: Re: [RFT] x86 acpi: normalize segment descriptor register on resume

Sorry for the delay in testing.  This appears to work and fix the problem.

--Andy

On Mon, Jul 14, 2008 at 12:18 AM, H. Peter Anvin <hpa@...or.com> wrote:
> H. Peter Anvin wrote:
>>
>> The most likely explanation for this is that the VESA BIOS expects to be
>> entered in Big Real Mode (*.limit = 0xffffffff) instead of ordinary Real
>> Mode.  Here is a completely untested patch which changes the segment
>> descriptors to Big Real Mode instead.  It would be worth testing out.
>>
>
> ... and here is one that actually has a prayer of actually working.
>
>        -hpa
>
>
> --- AV & Spam Filtering by M+Guardian - Risk Free Email (TM) ---
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/