linux-kernel - Re: CONFIG_BREAK_MY

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Message-ID: <20070517084759.GA3975@ucw.cz>
Date:	Thu, 17 May 2007 08:47:59 +0000
From:	Pavel Machek <pavel@....cz>
To:	Hans de Goede <j.w.r.degoede@....nl>
Cc:	Jean Delvare <khali@...ux-fr.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: CONFIG_BREAK_MY_MACHINE

Hi!

> >>If abitguru breaks random machines, we probably should 
> >>DMI whitelist,
> >>too.
> >
> >I never said it was breaking machines, just that it was 
> >accessing
> >arbitrary I/O ports.
> >
> >This was already discussed with the driver's author 
> >(Hans de Goede,
> >Cc'd) and I think we agreed on the principle, but it 
> >didn't happen yet.
> >This device only exists on Abit motherboards so it 
> >would be easy enough
> >to check the DMI vendor. A more detailed white list is 
> >also possible,
> >but I'm not insisting on it.
> >
> >The driver could also be made to depend on X86, as this 
> >is the only
> >architecture where it is useful.
> >
> >Hans, can you please submit a patch doing this?
> >
> 
> As you can see from the CC I've send you, I've just 
> mailed my private army of testers / known uguru users, 
> requesting them to send me the output of dmidecode on 
> their uguru mobo's. Once I have this info, I'll see if 
> there is some consistency in the manufacturer DMI field.
> 
> I've mailed them, since the DMI info is needed anyways 
> to put uguru detection in sensors-detect, but I'm not 
> sure I want to add this to the driver too. Many other 
> ISA drivers do io probe's too, if a users decides to 
> start loading random drivers, he is asking for problems, 
> should we really even try to protect against this?

Yes. config-all-yes kernel should boot. And it should be ok to share
kernel between different machines.

ISA drivers should be disappearing these days, if something does
dangerous port-probe, we want to fix it somehow.
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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