FYI, we noticed the below changes on git://internal_merge_and_test_tree revert-4b59da521f7e0aedff75c2aa90b6a653727cdf7f-4b59da521f7e0aedff75c2aa90b6a653727cdf7f commit 4b59da521f7e0aedff75c2aa90b6a653727cdf7f ("The PCI subsystem always assumes that I/O is supported on PCIe bridges and") [ 23.379964] i801_smbus 0000:04:00.3: SMBus base address uninitialized, upgrade BIOS Thanks, Ying Huang