linux-kernel - Re: 2.6.18-rc7-git1: AHCI not seeing devices on ICH8 mobo (DG965RY)

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]

Date:	Mon, 18 Sep 2006 21:49:13 -0700
From:	"Robin H. Johnson" <robbat2@...too.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Tejun Heo <htejun@...il.com>,
	"Robin H. Johnson" <robbat2@...too.org>,
	linux-kernel@...r.kernel.org,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: 2.6.18-rc7-git1: AHCI not seeing devices on ICH8 mobo (DG965RY)

On Mon, Sep 18, 2006 at 11:53:39PM -0400, Jeff Garzik wrote:
> We can't really know which controllers have a non-linear port mapping, 
> because that is dependent on both the silicon and whether or not the 
> chip is connected to port X[0-31].  The BIOS knows this, of course :)
I noticed that in my case, when the wrong ioports were probed (base +
port_idx*offset) for port_idx being 2/3 - all of the return values were
zero, instead of the expected values.

You could probably use this to detect cases where PI claims a port is
not present, but it really is.

-- 
Robin Hugh Johnson
E-Mail     : robbat2@...too.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

Content of type "application/pgp-signature" skipped