linux-kernel - Re: [RFC PATCH v2] iommu/amd: gray the 'irq_remap

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Message-ID: <565EEFB4.4080108@profitbricks.com>
Date:	Wed, 2 Dec 2015 14:18:44 +0100
From:	Michael Wang <yun.wang@...fitbricks.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Joerg Roedel <joro@...tes.org>,
	Catalin Marinas <catalin.marinas@...il.com>,
	iommu@...ts.linux-foundation.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v2] iommu/amd: gray the 'irq_remap_table' object for
 kmemleak

Hi, Borislav

On 12/02/2015 02:13 PM, Borislav Petkov wrote:
> On Wed, Dec 02, 2015 at 02:01:55PM +0100, Michael Wang wrote:
>> Yeah.. it's a little complicated since we have our own kernel tree and this
>> won't be a problem for us, but we really prefer to help fix it in mainline
>> too, as long as this is really a defect, so others could save time on research
>> in future.
> 
> Well, to keep it realistic and if it were me, I wouldn't even take such
> a fix as it is apparently kmemleak's problem.

Do you mean this could be a real kmemleak? Could you please provide more details?

> 
> So you could fix your testing instead to ignore that error message now
> that you know it is a false-positive. That should be easiest.
> 

Yeah, but it would be better to solve it, otherwise whoever saw this report
will need to go into the amd-iommu, make sure it's not a real leak, then
change their testing script...

Regards,
Michael Wang
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