On Sat, Mar 13, 2021 at 01:19:39PM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=212261 > > Bug ID: 212261 > Summary: pci 0000:00:00.2: can't derive routing for PCI INT A > Product: Drivers > Version: 2.5 > Kernel Version: 5.10.22 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: PCI > Assignee: drivers_pci@xxxxxxxxxxxxxxxxxxxx > Reporter: kernelbugs@xxxxxxxxxxxxxxxxxxxxxxx > Regression: No > > I'm on a Lenovo T14 AMD, with a Ryzen 4750U. In the logs, I find > > pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported > pci 0000:00:00.2: can't derive routing for PCI INT A > pci 0000:00:00.2: PCI INT A: not connected > > where the last two lines are warnings. Various bugreports related to this can > be found elsewhere. > > I guess there is either something wrong with the hardware/firmware or with the > kernel. I'd hope this warning can be fixed. Feel free to ask for more > information. Thanks for the report! What device is 00:00.2? Does it work? If not, did it ever work, i.e., is this a regression? If it's a regression, what's the newest kernel you know of where it did work? Can you please attach a complete dmesg log and output of "sudo lspci -vvv" to the bugzilla? Can you also add links to any related bug reports you're aware of? Bjorn
