Re: Linux crash when using FTDI FT232R USB to serial converter on AMD boards.

Joerg Roedel
2019-05-03T15:38:00Z

On Mon, Apr 29, 2019 at 11:48:47AM +0200, Johan Hovold wrote:
> So this is a debian 4.18 kernel seemingly crashing due to a xhci or
> iommu issue.
>
> Can you reproduce this on a mainline kernel?
>
> If so, please post the corresponding logs to the lists and CC the xhci
> and iommu maintainers (added to CC).

Your kernel is probably missing this upstream fix:

4e50ce03976f iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE

Regards,

Joerg