On Sun, Jun 5, 2011 at 8:51 PM, Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> wrote: > (2011/06/06 8:36), Bjorn Helgaas wrote: >> >> On Sun, Jun 5, 2011 at 5:57 AM, Carl Karsten<carl@xxxxxxxxxxxxxxxxx> >> wrote: >>> >>> 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 >> >> It might be useful to see the entire dmesg log and the "lspci -vv" >> output from the Pavilion. > > Could you add "pciehp.pciehp_debug" to kernel parameter when getting > dmesg log? With "pciehp.pciehp_debug", pciehp driver will display > debug messages. > > Also, could you send "ls -l /sys/bus/pci/slots/" output? > > I guess your hotplug slot is not detected by pciehp for some reason. ah, saw this after posting.. .coming right up. -- 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
