New test on kernel Linux version 5.1.0-050100-generic. Same problem, system crash after a few seconds.
Full kern.log: https://paste.ee/p/EmLsw
I can do access to my pc through SSH if useful.

starosta

Dne 3.5.2019 v 17:37 Joerg Roedel napsal(a):

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