On Mon, Nov 16, 2009 at 12:43 PM, Patrick Keller <patrick.keller@xxxxxx> wrote: > I'm seeing some breakage in the hotplug code that I was testing on a > system here. When removing a root port and rescanning for new devices > the port and all children are unable to allocate any mem resources. > > I've bisected the problem down to patch: > [28760489a3f1e136c5ae8581c0fa8f63511f2f4c] PCI: pcie: Ensure hotplug > ports have a minimum number of resources > > The breakage signature is below, along with an lspci -vv output > > dl580g5:~# echo 1 > /sys/bus/pci/devices/0000:0b:00.0/remove > [ 52.078685] qla2xxx 0000:13:00.0: PCI INT A disabled > [ 52.086074] qla2xxx 0000:13:00.1: PCI INT B disabled > [ 52.093194] pcieport-driver 0000:0c:00.0: PCI INT A disabled > [ 52.097160] pcieport-driver 0000:0c:01.0: PCI INT A disabled > [ 52.105835] pcieport-driver 0000:0c:09.0: PCI INT A disabled > [ 52.108942] pcieport-driver 0000:0b:00.0: PCI INT A disabled > dl580g5:~# echo 1 > /sys/bus/pci/rescan > [ 60.433761] pci 0000:0b:00.0: PME# supported from D0 D3hot D3cold > [ 60.438492] pci 0000:0b:00.0: PME# disabled > [ 60.443614] pci 0000:0c:00.0: PME# supported from D0 D3hot D3cold > [ 60.452152] pci 0000:0c:00.0: PME# disabled > [ 60.459324] pci 0000:0c:01.0: PME# supported from D0 D3hot D3cold > [ 60.466196] pci 0000:0c:01.0: PME# disabled > [ 60.469791] pci 0000:0c:09.0: PME# supported from D0 D3hot D3cold > [ 60.475467] pci 0000:0c:09.0: PME# disabled > [ 60.481211] pcieport-driver 0000:17:00.0: BAR 8: can't allocate mem > resource [0xfe000000-0xfdffffff] > [ 60.486438] pcieport-driver 0000:18:01.0: BAR 8: can't allocate mem whole bootlog? thought that you should use pci=use_crs. and if it doesn't work, we may need put sth in intel_bus.c to add support for 7300. YH -- 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
