On Mon, Dec 13, 2021 at 01:37:10PM +0800, Chris Chiu wrote: > On Thu, Dec 9, 2021 at 5:39 PM Chris Chiu <chris.chiu@xxxxxxxxxxxxx> wrote: > > > > Hi, > > We created a ticket > > https://bugzilla.kernel.org/show_bug.cgi?id=215265 that is pretty > > similar to https://bugzilla.kernel.org/show_bug.cgi?id=214259. So I > > tried the patch on https://lkml.org/lkml/2020/6/17/751 but it doesn't > > fix the issue. I also tried to boot with the kernel parameter > > `pci=nocrs` but it changed nothing either. I attached the kernel log > > with thunderbolt dynamic debug on and lspci output on the ticket. Also > > tried to disable the intel_iommu, the DMAR failure seems to go away > > but thunderbolt still fails to work. Can anyone suggest what kind of > > information is required to help identify the cause of the problem? > > Thanks > > > > Chris > > Gentle ping. Mika, could you give some advice on this? Thanks Hm, didn't I already answered? https://lore.kernel.org/linux-usb/YbHVryQ+QTnyMmTB@lahna/
