I am wondering why I see a difference between 2 similar setups: I have 2 laptops, ubuntu 2.6.39-3-generic on both. pciehp is included, acpiphp built but not inserted by default. HP EliteBook 8530w (KS051UA#ABA) HP Pavilion dv6700 Notebook PC (KC300UA#ABA) On the EliteBook, hotplug works: lspci entries come and go, modules un/load, udev reports add/remove. good. On the Pavilion, if I load acpiphp (via /etc/modules), hotplug works. If I don't load any additional modules hotplug does not work: insert card - nothing in syslog, lspci, udev. If a card is in the slot when the kernel loads, it shows in syslog, lscpi and the drivers get loaded. If I pull it out, nothing changes: still listed in lspci, modules still loaded, dev nodes still around. Here is some logs lines from Pavilion: stock module, doesn't work: [ 0.560575] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.560605] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 onboard firewire, irrelevant but might cause confusion if I don't bring it up: [ 0.314713] pci 0000:02:05.0: proprietary Ricoh MMC controller disabled (via firewire function) [ 1.582830] ACPI: PCI Interrupt Link [LNK1] enabled at IRQ 5 [ 1.582853] firewire_ohci 0000:02:05.0: PCI INT A -> Link[LNK1] -> GSI 5 (level, low) -> IRQ 5 [ 1.630061] usb 2-2: new high speed USB device number 3 using ehci_hcd [ 1.640134] firewire_ohci: Added fw-ohci device 0000:02:05.0, OHCI v1.10, 4 IR + 4 IT contexts, quirks 0x1 [ 2.140126] firewire_core: created device fw0: GUID 00241b00964cac00, S400 juser@pc8:~$ sudo modprobe acpiphp juser@pc8:~$ sudo dmesg -c [ 1407.598144] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1407.599274] acpiphp: Slot [1] registered plug in card root@pc8:~# sudo dmesg -c [ 857.351959] pci 0000:04:00.0: [11c1:5901] type 0 class 0x000c00 [ 857.351996] pci 0000:04:00.0: reg 10: [mem 0x00000000-0x00000fff 64bit] [ 857.352082] pci 0000:04:00.0: supports D1 D2 [ 857.352089] pci 0000:04:00.0: PME# supported from D0 D1 D2 D3hot D3cold [ 857.352099] pci 0000:04:00.0: PME# disabled [ 857.352472] pci 0000:04:00.0: BAR 0: assigned [mem 0xf2000000-0xf2000fff 64bit] [ 857.352489] pci 0000:04:00.0: BAR 0: set to [mem 0xf2000000-0xf2000fff 64bit] (PCI address [0xf2000000-0xf2000fff]) [ 857.352518] pci 0000:04:00.0: no hotplug settings from platform [ 857.353261] firewire_ohci 0000:04:00.0: enabling device (0000 -> 0002) [ 857.353725] ACPI: PCI Interrupt Link [LK1E] enabled at IRQ 16 [ 857.353740] firewire_ohci 0000:04:00.0: PCI INT A -> Link[LK1E] -> GSI 16 (level, low) -> IRQ 16 [ 857.353754] firewire_ohci 0000:04:00.0: setting latency timer to 64 [ 857.410139] firewire_ohci: Added fw-ohci device 0000:04:00.0, OHCI v1.10, 8 IR + 8 IT contexts, quirks 0x10 [ 857.910326] firewire_core: created device fw1: GUID 0108000000005e01, S800 ubuntu kernel config: grep -i hotplug /boot/config-2.6.39-3-generic CONFIG_HOTPLUG=y # CONFIG_MEMORY_HOTPLUG is not set CONFIG_HOTPLUG_CPU=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_FAKE=m CONFIG_HOTPLUG_PCI_ACPI=m CONFIG_HOTPLUG_PCI_ACPI_IBM=m CONFIG_HOTPLUG_PCI_CPCI=y CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m CONFIG_HOTPLUG_PCI_SHPC=m root@pc8:/sys/module/pciehp/parameters# tail * ==> pciehp_debug <== N ==> pciehp_detect_mode <== (null) ==> pciehp_force <== N ==> pciehp_poll_mode <== N ==> pciehp_poll_time <== 0 I'll be happy to post more logs from other machines etc. -- Carl K -- 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
