All, I am reading the pci_scan_bridge() and not sure what will happen in following situation. Suppose the kernel is not passed the pci=assign-busses. Below is a picture about the pci system. +-------+ | | root bridge(0,255) +---+---+ | Bus 0 -----+-----------+------------------------------+-- | | | | | | +----+----+ +-----+-----+ | | B1(1,15) | |B2(16,28) +----+----+ +-----+-----+ | Bus 1 | Bus 16 -----+----------------------- ----------+---------------- | +----+----+ | | B3 +---------+ Suppose B1 and B2 works fine with the BIOS, which get the right bus number and range. B3 does not works fine with the BIOS, which doesn't get the bus number. So in pci_scan_bridge(), B3 will be met in the second pass and get bus number 16? Would this be a conflict? -- Richard Yang Help you, Help me -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html