linux-kernel - Re: BUG at drivers/iommu/amd

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Date:   Thu, 17 Nov 2016 22:41:41 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Mark Hounschell <markh@...pro.net>
Cc:     iommu@...ts.linux-foundation.org,
        Linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: BUG at drivers/iommu/amd_iommu.c:1436!

Hi Mark,

On Thu, Nov 17, 2016 at 02:13:59PM -0500, Mark Hounschell wrote:
> Kernel version is 4.8.0. No failure when the IOMMU is disabled. This
> is an out of tree GPL driver using
> pci_alloc_consistent/pci_free_consistent. The free causes this.

Can you please run the driver with dma-api debugging enabled? Does it
trigger any warnings?



	Joerg