Re: BUG at drivers/iommu/amd_iommu.c:1436!

From: Joerg Roedel
Date: Thu Nov 17 2016 - 16:41:47 EST


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