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Message-ID: <86802c440809061518w1c74c0f4u4ccc7b6b0da7b398@mail.gmail.com>
Date: Sat, 6 Sep 2008 15:18:28 -0700
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Alex Chiang" <achiang@hp.com>, "Yinghai Lu" <yhlu.kernel@gmail.com>,
       "Ingo Molnar" <mingo@elte.hu>,
       "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "jbarnes@virtuousgeek.org" <jbarnes@virtuousgeek.org>
Subject: Re: hotplug create_slot hang
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	 <20080906215041.GD27298@ldl.fc.hp.com>
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On Sat, Sep 6, 2008 at 2:50 PM, Alex Chiang <achiang@hp.com> wrote:
> * Yinghai Lu <yhlu.kernel@gmail.com>:
>> calling  pci_hotplug_init+0x0/0x1d
>> pci_hotplug: PCI Hot Plug PCI Core version: 0.5
>> initcall pci_hotplug_init+0x0/0x1d returned 0 after 11 msecs
>>
>> calling  acpiphp_init+0x0/0x5f
>> acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
>> decode_hpp: Could not get hotplug parameters. Use defaults
>> pci_create_slot: created pci_slot on 0000:07:00
>> acpiphp: Slot [1] registered
>> decode_hpp: Could not get hotplug parameters. Use defaults
>> pci_create_slot: created pci_slot on 0000:0d:00
>> acpiphp: Slot [2] registered
>> initcall acpiphp_init+0x0/0x5f returned 0 after 105 msecs
>
> Is this the hang?
>
>> calling  pcied_init+0x0/0x7b
>> pciehp: HPC vendor_id 8086 device_id 340a ss_vid 0 ss_did 0
>> pci_create_slot: inc refcount to 2 on 0000:07:00
>> pci_destroy_slot: dec refcount to 1 on 0000:07:00
>> pciehp: pci_hp_register failed with error -16
>> pciehp: pciehp: slot already registered by another hotplug driver
>
> This failure is by design -- we only allow one hotplug driver to
> claim a slot now, and it's "first one loaded wins".
>
> Unless you're talking about something else?

after

pciehp: pciehp: slot already registered by another hotplug driver

never go on...

YH