From: Corentin Labbe <clabbe.montj...@gmail.com> Date: Sun, 23 Dec 2018 20:38:21 +0100
> During a boot on a qemu machine, I hit the following problem: ... > After some pr_info, I found that the function triggering this is the > pci_unmap_page() in gem_tx(). > So clearly this WARNING() is strange since it says "unmapped as single". I also went through the code paths and this makes no sense to me either.
