linux-kernel - Re: Is the change to IDE probing really necessary?

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: <20081124185453.57ca7dcc@lxorguk.ukuu.org.uk>
Date:	Mon, 24 Nov 2008 18:54:53 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mel Gorman <mel@....ul.ie>
Cc:	petkovbb@...il.com, sshtylyov@...mvista.com,
	linux-kernel@...r.kernel.org
Subject: Re: Is the change to IDE probing really necessary?

O> On a machine requiring probing of the legacy ports, the suggested
> probe_mask of 0x3f results in other devices being registered as IDE
> devices. Suggest to the user they use 0x3 which is the old value of
> probe_mask prior to commit 20df429dd6671804999493baf2952f82582869fa.

NAK

This makes no sense.

0x3F means probe them all.

0x03 means only peer at primary/secondary.

If you don't want them probed, don't pass arguments asking for them to be
probed!

"how is a distro install using modules meant to be fixed up?"

If the distribution supports non PCI bus boxes then pass a mask of 0x3F
on non PCI boxes. If the distribution is for PCI systems then leave the
mask alone.

If you want it to just work automatically use pata_legacy instead as that
automatically flips between probing ISA tertiary devices and leaving
things well alone according to the presence of PCI bus.

Alan
--
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/