Messages in this thread | | | Date | Tue, 27 Oct 2009 17:46:05 +0900 | From | Kenji Kaneshige <> | Subject | Re: pci-express hotplug |
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Jens Axboe wrote: > On Tue, Oct 27 2009, Kenji Kaneshige wrote: >> Jens Axboe wrote: >>> On Tue, Oct 20 2009, Alex Chiang wrote: >>>> * Jens Axboe <jens.axboe@oracle.com>: >>>>> On Tue, Oct 13 2009, Alex Chiang wrote: >>>>>>>> Can you modprobe acpiphp with debug=1? And send the output? >>>>>>> acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 >>>>>>> acpiphp_glue: found PCI-to-PCI bridge at PCI 0000:00:05.0 >>>>>>> acpiphp_glue: found ACPI PCI Hotplug slot 1 at PCI 0000:08:00 >>>>>>> acpiphp: Slot [1] registered >>>>>>> acpiphp_glue: found PCI-to-PCI bridge at PCI 0000:00:07.0 >>>>>>> acpiphp_glue: found ACPI PCI Hotplug slot 2 at PCI 0000:0b:00 >>>>>>> acpiphp: Slot [2] registered >>>>>>> acpiphp_glue: found PCI-to-PCI bridge at PCI 0000:80:07.0 >>>>>>> acpiphp_glue: found ACPI PCI Hotplug slot 6 at PCI 0000:84:00 >>>>>>> acpiphp: Slot [6] registered >>>>>>> acpiphp_glue: found PCI-to-PCI bridge at PCI 0000:80:09.0 >>>>>>> acpiphp_glue: found ACPI PCI Hotplug slot 7 at PCI 0000:87:00 >>>>>>> acpiphp: Slot [7] registered >>>>>>> acpiphp_glue: Bus 0000:87 has 1 slot >>>>>>> acpiphp_glue: Bus 0000:84 has 1 slot >>>>>>> acpiphp_glue: Bus 0000:0b has 1 slot >>>>>>> acpiphp_glue: Bus 0000:08 has 1 slot >>>>>>> acpiphp_glue: Total 4 slots >>>>>> You mentioned in another mail that you echoed 1 into the various >>>>>> slots' power files. >>>>>> >>>>>> Did you do that after modprobing acpiphp with debug=1? >>>>>> >>>>>> If so, there should be debug output when you try and turn them >>>>>> on. >>>>> It produces: >>>>> >>>>> acpiphp: enable_slot - physical_slot = 1 >>>>> acpiphp_glue: acpiphp_enable_slot: Slot status is not ACPI_STA_ALL >>>>> acpiphp: enable_slot - physical_slot = 2 >>>>> acpiphp_glue: acpiphp_enable_slot: Slot status is not ACPI_STA_ALL >>>>> acpiphp: enable_slot - physical_slot = 6 >>>>> acpiphp_glue: acpiphp_enable_slot: Slot status is not ACPI_STA_ALL >>>>> acpiphp: enable_slot - physical_slot = 7 >>>>> acpiphp_glue: acpiphp_enable_slot: Slot status is not ACPI_STA_ALL >>>> Hm, so for some reason, firmware on your machine is telling us >>>> that it doesn't think cards are present and/or enabled. >>>> >>>> Unfortunately, I don't know why your firmware would be saying >>>> that. We could add some more debug printks to see what firmware >>>> thinks about your system... Or we could just wait and see what >>>> happens after you get your hardware replaced. >>> New board, the exact same thing happens. >>> >>>>> I have a card in one of the slots only this time. >>>>> >>>>>> Also, quick dummy check, you are trying to power on populated >>>>>> slots, right? :) >>>>> Yes :-) >>>>> >>>>>> Can you send the output of lspci -vv? And I like the output of >>>>>> lspci -vt as well... Both before and after loading acpiphp >>>>>> please. >>>>> Send privately. >>>> No difference in before and after. Odd. >>>> >>>> If you want to poke us again after your hardware swap, please do >>>> so. Sorry for being not so helpful. :-/ >>> Poke :-) >>> >>> One more thing I tried was pushing the power button on the slot >>> manually. With acpiphp, I get the same messages as above. Using pciehp, >>> I get the same power fault bit interrupt storm. So no difference from >>> using the sysfs interface or doing it on the box side, doesn't work >>> either way. >>> >> I'd like to confirm power fault interrupt storm, just in case. >> Could you get /proc/interrupts information after power fault >> problem happens and send it to me? > > The box pretty much hangs when I try to power on a slot with pciehp, so > it's not easy to do... It doesn't hang with acpiphp, but doesn't work > either (see previous reply to Alex). >
Ok, I'll try to make a debug patch. Maybe I can send it tomorrow.
Thanks, Kenji Kaneshige
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