linux-kernel - Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

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: <20071211191816.GC3437@elf.ucw.cz>
Date:	Tue, 11 Dec 2007 20:18:16 +0100
From:	Pavel Machek <pavel@....cz>
To:	Rene Herman <rene.herman@...access.nl>
Cc:	"David P. Reed" <dpreed@...d.com>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-os (Dick Johnson)" <linux-os@...logic.com>,
	David Newall <david@...idnewall.com>,
	Paul Rolland <rol@...917.net>,
	"H. Peter Anvin" <hpa@...or.com>, Krzysztof Halasa <khc@...waw.pl>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, rol@...be.net
Subject: Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64
	with MCP51 laptops

On Tue 2007-12-11 18:04:32, Rene Herman wrote:
> On 11-12-07 18:00, David P. Reed wrote:
>
>> Which port do you want me to test?
>
> Oh, thought your previous reply was already responding to this. The "other 
> diagnostic port", 0xed. The point is not so much that it's going to be a 
> good alternate solution but to exclude it being a possible solution.

Try replacing port 0x80 in include/asm-x86/io_*.h with 0xed... and see
if it makes your machine stable.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
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/