linux-kernel - Re: agpgart: when telling user you'll corrupt his data, at least do it at KERN

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Date:	Fri, 28 Mar 2008 15:13:48 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Pavel Machek <pavel@....cz>
Cc:	Andi Kleen <andi@...stfloor.org>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: agpgart: when telling user you'll corrupt his data, at least
	do it at KERN_CRIT


* Pavel Machek <pavel@....cz> wrote:

> On Fri 2008-03-28 12:35:28, Ingo Molnar wrote:
> > 
> > * Pavel Machek <pavel@....cz> wrote:
> > 
> > > IOMMU off means very bad stuff may happen, like data corruption on 
> > > your hard drives. At least tells users this is serious...
> > 
> > ouch. Please at minimum lets turn this into a panic(), but best would be 
> > to trim memory in this case, hm?
> 
> Andi tells me we already fallback to swiotlb, so messages are not on 
> wrong loglevel; they contain confusing/obsolete text.

yes that is the theory - but how did your disk get corrupted in 
practice? ;-)

	Ingo
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