On Fri, Jul 15, 2016 at 1:33 PM, Kallol Biswas <kallol@xxxxxxxxxxxxxx> wrote: > Hi, > I have been trying to hot-add a PCIe bridge and getting the > following message in dmesg: > > No bus number available for hot-added bridge 0000:06:00. > > The kernel is 4.4. Do we have any patch for this? I tried Yinghai's > for-pci-busn-alloc patch. Did not work. Not sure I picked up the right > changes. > > Any input... > > [ 794.085909] pci 0000:06:00.0: [10b5:9797] type 01 class 0x060400 > [ 794.086232] pci 0000:06:00.0: Max Payload Size set to 256 (was 128, max 512) > [ 794.086563] pci 0000:06:00.0: PME# supported from D0 D3hot D3cold > [ 794.086884] iommu: Adding device 0000:06:00.0 to group 47 > [ 794.093797] No bus number available for hot-added bridge 0000:06:00.0 Can you please send out the whole boot log with CONFIG_PCI_DEBUG=y ? also output for lspci -tv and lspci -vvxxx. Thanks Yinghai -- 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