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
