Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758105AbZJNIrz (ORCPT ); Wed, 14 Oct 2009 04:47:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755926AbZJNIry (ORCPT ); Wed, 14 Oct 2009 04:47:54 -0400 Received: from brick.kernel.dk ([93.163.65.50]:38138 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755033AbZJNIrv (ORCPT ); Wed, 14 Oct 2009 04:47:51 -0400 Date: Wed, 14 Oct 2009 10:47:14 +0200 From: Jens Axboe To: Kenji Kaneshige Cc: Linux Kernel , jbarnes@virtuousgeek.org, linux-pci@vger.kernel.org Subject: Re: pci-express hotplug Message-ID: <20091014084713.GO9228@kernel.dk> References: <20091012120620.GG9228@kernel.dk> <4AD3F1D4.1000006@jp.fujitsu.com> <20091013083152.GR9228@kernel.dk> <4AD45B1B.8000609@jp.fujitsu.com> <20091013112525.GX9228@kernel.dk> <4AD5611F.6010907@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="ep0oHQY+/Gbo/zt0" Content-Disposition: inline In-Reply-To: <4AD5611F.6010907@jp.fujitsu.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 19104 Lines: 382 --ep0oHQY+/Gbo/zt0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Oct 14 2009, Kenji Kaneshige wrote: > Jens Axboe wrote: >> On Tue, Oct 13 2009, Kenji Kaneshige wrote: >>> Jens Axboe wrote: >>>> On Tue, Oct 13 2009, Kenji Kaneshige wrote: >>>>> Jens Axboe wrote: >>>>>> Hi, >>>>>> >>>>>> I'm trying to get pci-express hotplug working in a box here. I don't >>>>>> really care about the hotplug aspect, I just want the darn pci-e slots >>>>>> that are designated hotplug slots to actually WORK. When I load pciehp, >>>>>> I get: >>>>>> >>>>>> Firmware did not grant requested _OSC control >>>>>> Firmware did not grant requested _OSC control >>>>>> Firmware did not grant requested _OSC control >>>>>> Firmware did not grant requested _OSC control >>>>>> pciehp 0000:00:05.0:pcie04: HPC vendor_id 8086 device_id 340c ss_vid 0 ss_did 0 >>>>>> pciehp 0000:00:05.0:pcie04: service driver pciehp loaded >>>>>> Firmware did not grant requested _OSC control >>>>>> pciehp 0000:00:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0 >>>>>> pciehp 0000:00:07.0:pcie04: service driver pciehp loaded >>>>>> Firmware did not grant requested _OSC control >>>>>> pciehp 0000:80:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0 >>>>>> pciehp 0000:80:07.0:pcie04: service driver pciehp loaded >>>>>> pciehp 0000:80:09.0:pcie04: HPC vendor_id 8086 device_id 3410 ss_vid 0 ss_did 0 >>>>>> pciehp 0000:80:09.0:pcie04: service driver pciehp loaded >>>>>> pciehp: PCI Express Hot Plug Controller Driver version: 0.4 >>>>>> >>>>>> and the devices in the hotplug slots stay off. Is this an ACPI/bios >>>>>> issue? How can I debug this? >>>>>> >>>>> Could you give me the result of "ls -lR /sys/bus/pci/slots/" >>>>> after loading pciehp? >>>> I have attached the result of that ls prior to loading pciehp/acpiphp >>>> (pre-load), after loading pciehp (pciehp-load), and with acpiphp loaded >>>> only as well (acpiphp-load). >>>> >>> Thank you for the info. From the information, I confirmed that hotplug >>> slots are detected by pciehp even though _OSC evaluation failed. There >>> are two ways to take control from the firmware through ACPI control >>> method. One is _OSC control method, and the other is OSHP control method. >>> I guess your ACPI fimware has both _OSC and OSHP on DSDT (ACPI Namespace), >>> and pciehp assumes that it took control through OSHP after the _OSC >>> evaluation failure. I think this pciehp's behavior is wrong because of >>> the following reasons and I think pciehp driver mis-detected the hotplug >>> slots on your environment because of this. >>> >>> - According to the PCI firmware specification, pciehp driver must use the >>> result of _OSC, if the platform implements both _OSC and OSHP. >>> - OSHP control method seems only for SHPC, not for PCI Express native hot- >>> plug. So pciehp must not evaluate OSHP to take control from firmware. >>> >>> To confirm this, could you send me the dmesg output after loading pciehp >>> with 'debug_acpi' of pci_hotplug (PCI hotplug core driver) enabled? >>> For example, >>> >>> $ su >>> # echo Y > /sys/module/pci_hotplug/parameters/debug_acpi >>> # modprobe pciehp >>> # dmesg >> >> See below. >> >>> And if it is possible, could you send me DSDT of your platform? >> >> Not sure I can do that, I'll check. >> >>> Anyway, my recommendation is using acpiphp on your environment because >>> your firmware didn't grant control over hotplug control through _OSC. >>> From the information, acpiphp also detects the hotplug slots successfully. >>> Please try "echo 1 > /sys/bus/pci/slots//power". It would turn on >>> the slot and initialize adapter card on the slot. >> >> It does find the 4 slots correctly. But if I try to turn on the power, >> nothing happens and 'power' stays at 0. If I do the same with pciehp, I >> get the same hang as described when using pciehp with pciehp_force=1. >> But apparently this machine is getting a board replacement very soon, so >> it may solve itself. Unless you think it should work and there's >> something I can try to check, then lets just leave this issue until I >> get it upgraded and return from kernel summit / JLS. >> > > Could you try pciehp with "pciehp_debug" option enabled(*), and give me > the following information? I've attached the output of loading pciehp with the debug option enabled. > - "cat /sys/bus/pci/slots/*/*" output Attached as slots > - dmesg output after "echo 1 > /sys/bus/pci/slots//power" # echo 1 > /sys/bus/pci/slots/1/power pciehp 0000:00:05.0:pcie04: Power fault on Slot(1) pciehp 0000:00:05.0:pcie04: Power fault bit 0 set pciehp 0000:00:05.0:pcie04: pcie_isr: intr_loc 2 [...] That last line repeats infinitely. > (*) you can enable "pciehp_debug" option as follows > > # modprobe pciehp pciehp_debug > > I'm not sure, but I think one of the possibility is that your hot-plug > controller doesn't support power controller. On such slot, the slot is > usually turned on automatically at adapter card insertion. So card > re-insertion might make some difference. The dmesg seems to suggest it has a power controller. I also tried removing and replugging the card, which is detected: pciehp 0000:00:05.0:pcie04: pcie_isr: intr_loc 8 pciehp 0000:00:05.0:pcie04: Presence/Notify input change pciehp 0000:00:05.0:pcie04: Card not present on Slot(1) pciehp 0000:00:05.0:pcie04: pcie_isr: intr_loc 8 pciehp 0000:00:05.0:pcie04: Presence/Notify input change pciehp 0000:00:05.0:pcie04: Card present on Slot(1) but the slot isn't powered on still. > By the way, I would like to know if your system has SHPC based hotplug > slots. Could you load shpchp driver and send me the > "ls -lR /sys/bus/pci/slots/" output? And I would like to see the dmesg > output with "debug_acpi" of pci_hotplug enabled. For example, > > $ su > # echo Y > /sys/module/pci_hotplug/parameters/debug_acpi > # modprobe shpchp This doesn't dump anything but: shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 > # ls -lR /sys/bus/pci/slots > # dmesg Attached. -- Jens Axboe --ep0oHQY+/Gbo/zt0 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=ls-lr-slots Content-Transfer-Encoding: quoted-printable =1B[0m/sys/bus/pci/slots/: total 0 drwxr-xr-x 2 root root 0 2009-10-14 10:44 =1B[01;34m1=1B[0m/ drwxr-xr-x 2 root root 0 2009-10-14 10:44 =1B[01;34m2=1B[0m/ drwxr-xr-x 2 root root 0 2009-10-14 10:44 =1B[01;34m6=1B[0m/ drwxr-xr-x 2 root root 0 2009-10-14 10:44 =1B[01;34m7=1B[0m/ /sys/bus/pci/slots/1: total 0 -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0madapter=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0maddress=1B[0m -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mattention=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mcur_bus_speed=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mlatch=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mmax_bus_speed=1B[0m lrwxrwxrwx 1 root root 0 2009-10-14 10:44 =1B[01;36mmodule=1B[0m -> =1B[= 01;34m../../../../module/pciehp=1B[0m/ -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mpower=1B[0m /sys/bus/pci/slots/2: total 0 -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0madapter=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0maddress=1B[0m -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mattention=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mcur_bus_speed=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mlatch=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mmax_bus_speed=1B[0m lrwxrwxrwx 1 root root 0 2009-10-14 10:44 =1B[01;36mmodule=1B[0m -> =1B[= 01;34m../../../../module/pciehp=1B[0m/ -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mpower=1B[0m /sys/bus/pci/slots/6: total 0 -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0madapter=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0maddress=1B[0m -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mattention=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mcur_bus_speed=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mlatch=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mmax_bus_speed=1B[0m lrwxrwxrwx 1 root root 0 2009-10-14 10:44 =1B[01;36mmodule=1B[0m -> =1B[= 01;34m../../../../module/pciehp=1B[0m/ -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mpower=1B[0m /sys/bus/pci/slots/7: total 0 -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0madapter=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0maddress=1B[0m -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mattention=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mcur_bus_speed=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mlatch=1B[0m -r--r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mmax_bus_speed=1B[0m lrwxrwxrwx 1 root root 0 2009-10-14 10:44 =1B[01;36mmodule=1B[0m -> =1B[= 01;34m../../../../module/pciehp=1B[0m/ -rw-r--r-- 1 root root 4096 2009-10-14 10:44 =1B[0mpower=1B[0m =1B[m --ep0oHQY+/Gbo/zt0 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=slots Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control pciehp 0000: --ep0oHQY+/Gbo/zt0 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=pciehp-load-debug Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control Firmware did not grant requested _OSC control pciehp 0000:00:05.0:pcie04: Hotplug Controller: pciehp 0000:00:05.0:pcie04: Seg/Bus/Dev/Func/IRQ : 0000:00:05.0 IRQ 75 pciehp 0000:00:05.0:pcie04: Vendor ID : 0x8086 pciehp 0000:00:05.0:pcie04: Device ID : 0x340c pciehp 0000:00:05.0:pcie04: Subsystem ID : 0x0000 pciehp 0000:00:05.0:pcie04: Subsystem Vendor ID : 0x0000 pciehp 0000:00:05.0:pcie04: PCIe Cap offset : 0x90 pciehp 0000:00:05.0:pcie04: PCI resource [7] : 0x1000@0x2000 pciehp 0000:00:05.0:pcie04: PCI resource [8] : 0x1000000@0x92900000 pciehp 0000:00:05.0:pcie04: PCI resource [9] : 0x4000000@0xc7f00000 pciehp 0000:00:05.0:pcie04: Slot Capabilities : 0x0008005b pciehp 0000:00:05.0:pcie04: Physical Slot Number : 1 pciehp 0000:00:05.0:pcie04: Attention Button : yes pciehp 0000:00:05.0:pcie04: Power Controller : yes pciehp 0000:00:05.0:pcie04: MRL Sensor : no pciehp 0000:00:05.0:pcie04: Attention Indicator : yes pciehp 0000:00:05.0:pcie04: Power Indicator : yes pciehp 0000:00:05.0:pcie04: Hot-Plug Surprise : no pciehp 0000:00:05.0:pcie04: EMI Present : no pciehp 0000:00:05.0:pcie04: Command Completed : yes pciehp 0000:00:05.0:pcie04: Slot Status : 0x0040 pciehp 0000:00:05.0:pcie04: Slot Control : 0x07cf pciehp 0000:00:05.0:pcie04: Link Active Reporting supported pciehp 0000:00:05.0:pcie04: Command not completed in 1000 msec pciehp 0000:00:05.0:pcie04: HPC vendor_id 8086 device_id 340c ss_vid 0 ss_did 0 pciehp 0000:00:05.0:pcie04: Registering domain:bus:dev=0000:08:00 sun=1 pciehp 0000:00:05.0:pcie04: get_power_status: physical_slot = 1 pciehp 0000:00:05.0:pcie04: pciehp_get_power_status: SLOTCTRL a8 value read 7c0 pciehp 0000:00:05.0:pcie04: get_attention_status: physical_slot = 1 pciehp 0000:00:05.0:pcie04: pciehp_get_attention_status: SLOTCTRL a8, value read 7c0 pciehp 0000:00:05.0:pcie04: get_latch_status: physical_slot = 1 pciehp 0000:00:05.0:pcie04: get_adapter_status: physical_slot = 1 pciehp 0000:00:05.0:pcie04: Command not completed in 1000 msec pciehp 0000:00:05.0:pcie04: service driver pciehp loaded Firmware did not grant requested _OSC control pciehp 0000:00:07.0:pcie04: Hotplug Controller: pciehp 0000:00:07.0:pcie04: Seg/Bus/Dev/Func/IRQ : 0000:00:07.0 IRQ 76 pciehp 0000:00:07.0:pcie04: Vendor ID : 0x8086 pciehp 0000:00:07.0:pcie04: Device ID : 0x340e pciehp 0000:00:07.0:pcie04: Subsystem ID : 0x0000 pciehp 0000:00:07.0:pcie04: Subsystem Vendor ID : 0x0000 pciehp 0000:00:07.0:pcie04: PCIe Cap offset : 0x90 pciehp 0000:00:07.0:pcie04: PCI resource [7] : 0x1000@0x1000 pciehp 0000:00:07.0:pcie04: PCI resource [8] : 0x1000000@0x91900000 pciehp 0000:00:07.0:pcie04: PCI resource [9] : 0x4000000@0xcbf00000 pciehp 0000:00:07.0:pcie04: Slot Capabilities : 0x0010005b pciehp 0000:00:07.0:pcie04: Physical Slot Number : 2 pciehp 0000:00:07.0:pcie04: Attention Button : yes pciehp 0000:00:07.0:pcie04: Power Controller : yes pciehp 0000:00:07.0:pcie04: MRL Sensor : no pciehp 0000:00:07.0:pcie04: Attention Indicator : yes pciehp 0000:00:07.0:pcie04: Power Indicator : yes pciehp 0000:00:07.0:pcie04: Hot-Plug Surprise : no pciehp 0000:00:07.0:pcie04: EMI Present : no pciehp 0000:00:07.0:pcie04: Command Completed : yes pciehp 0000:00:07.0:pcie04: Slot Status : 0x0000 pciehp 0000:00:07.0:pcie04: Slot Control : 0x07cf pciehp 0000:00:07.0:pcie04: Link Active Reporting supported pciehp 0000:00:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:00:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0 pciehp 0000:00:07.0:pcie04: Registering domain:bus:dev=0000:0b:00 sun=2 pciehp 0000:00:07.0:pcie04: get_power_status: physical_slot = 2 pciehp 0000:00:07.0:pcie04: pciehp_get_power_status: SLOTCTRL a8 value read 7c0 pciehp 0000:00:07.0:pcie04: get_attention_status: physical_slot = 2 pciehp 0000:00:07.0:pcie04: pciehp_get_attention_status: SLOTCTRL a8, value read 7c0 pciehp 0000:00:07.0:pcie04: get_latch_status: physical_slot = 2 pciehp 0000:00:07.0:pcie04: get_adapter_status: physical_slot = 2 pciehp 0000:00:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:00:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:00:07.0:pcie04: pciehp_power_off_slot: SLOTCTRL a8 write cmd 400 pciehp 0000:00:07.0:pcie04: service driver pciehp loaded Firmware did not grant requested _OSC control pciehp 0000:80:07.0:pcie04: Hotplug Controller: pciehp 0000:80:07.0:pcie04: Seg/Bus/Dev/Func/IRQ : 0000:80:07.0 IRQ 84 pciehp 0000:80:07.0:pcie04: Vendor ID : 0x8086 pciehp 0000:80:07.0:pcie04: Device ID : 0x340e pciehp 0000:80:07.0:pcie04: Subsystem ID : 0x0000 pciehp 0000:80:07.0:pcie04: Subsystem Vendor ID : 0x0000 pciehp 0000:80:07.0:pcie04: PCIe Cap offset : 0x90 pciehp 0000:80:07.0:pcie04: PCI resource [7] : 0x1000@0x9000 pciehp 0000:80:07.0:pcie04: PCI resource [8] : 0x1000000@0xd1000000 pciehp 0000:80:07.0:pcie04: PCI resource [9] : 0x4000000@0xf3f00000 pciehp 0000:80:07.0:pcie04: Slot Capabilities : 0x0030005b pciehp 0000:80:07.0:pcie04: Physical Slot Number : 6 pciehp 0000:80:07.0:pcie04: Attention Button : yes pciehp 0000:80:07.0:pcie04: Power Controller : yes pciehp 0000:80:07.0:pcie04: MRL Sensor : no pciehp 0000:80:07.0:pcie04: Attention Indicator : yes pciehp 0000:80:07.0:pcie04: Power Indicator : yes pciehp 0000:80:07.0:pcie04: Hot-Plug Surprise : no pciehp 0000:80:07.0:pcie04: EMI Present : no pciehp 0000:80:07.0:pcie04: Command Completed : yes pciehp 0000:80:07.0:pcie04: Slot Status : 0x0000 pciehp 0000:80:07.0:pcie04: Slot Control : 0x07cf pciehp 0000:80:07.0:pcie04: Link Active Reporting supported pciehp 0000:80:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:07.0:pcie04: HPC vendor_id 8086 device_id 340e ss_vid 0 ss_did 0 pciehp 0000:80:07.0:pcie04: Registering domain:bus:dev=0000:84:00 sun=6 pciehp 0000:80:07.0:pcie04: get_power_status: physical_slot = 6 pciehp 0000:80:07.0:pcie04: pciehp_get_power_status: SLOTCTRL a8 value read 7c0 pciehp 0000:80:07.0:pcie04: get_attention_status: physical_slot = 6 pciehp 0000:80:07.0:pcie04: pciehp_get_attention_status: SLOTCTRL a8, value read 7c0 pciehp 0000:80:07.0:pcie04: get_latch_status: physical_slot = 6 pciehp 0000:80:07.0:pcie04: get_adapter_status: physical_slot = 6 pciehp 0000:80:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:07.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:07.0:pcie04: pciehp_power_off_slot: SLOTCTRL a8 write cmd 400 pciehp 0000:80:07.0:pcie04: service driver pciehp loaded pciehp 0000:80:09.0:pcie04: Hotplug Controller: pciehp 0000:80:09.0:pcie04: Seg/Bus/Dev/Func/IRQ : 0000:80:09.0 IRQ 85 pciehp 0000:80:09.0:pcie04: Vendor ID : 0x8086 pciehp 0000:80:09.0:pcie04: Device ID : 0x3410 pciehp 0000:80:09.0:pcie04: Subsystem ID : 0x0000 pciehp 0000:80:09.0:pcie04: Subsystem Vendor ID : 0x0000 pciehp 0000:80:09.0:pcie04: PCIe Cap offset : 0x90 pciehp 0000:80:09.0:pcie04: PCI resource [7] : 0x1000@0x8000 pciehp 0000:80:09.0:pcie04: PCI resource [8] : 0x1000000@0xd0000000 pciehp 0000:80:09.0:pcie04: PCI resource [9] : 0x4000000@0xf7f00000 pciehp 0000:80:09.0:pcie04: Slot Capabilities : 0x0038005b pciehp 0000:80:09.0:pcie04: Physical Slot Number : 7 pciehp 0000:80:09.0:pcie04: Attention Button : yes pciehp 0000:80:09.0:pcie04: Power Controller : yes pciehp 0000:80:09.0:pcie04: MRL Sensor : no pciehp 0000:80:09.0:pcie04: Attention Indicator : yes pciehp 0000:80:09.0:pcie04: Power Indicator : yes pciehp 0000:80:09.0:pcie04: Hot-Plug Surprise : no pciehp 0000:80:09.0:pcie04: EMI Present : no pciehp 0000:80:09.0:pcie04: Command Completed : yes pciehp 0000:80:09.0:pcie04: Slot Status : 0x0000 pciehp 0000:80:09.0:pcie04: Slot Control : 0x07cf pciehp 0000:80:09.0:pcie04: Link Active Reporting supported pciehp 0000:80:09.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:09.0:pcie04: HPC vendor_id 8086 device_id 3410 ss_vid 0 ss_did 0 pciehp 0000:80:09.0:pcie04: Registering domain:bus:dev=0000:87:00 sun=7 pciehp 0000:80:09.0:pcie04: get_power_status: physical_slot = 7 pciehp 0000:80:09.0:pcie04: pciehp_get_power_status: SLOTCTRL a8 value read 7c0 pciehp 0000:80:09.0:pcie04: get_attention_status: physical_slot = 7 pciehp 0000:80:09.0:pcie04: pciehp_get_attention_status: SLOTCTRL a8, value read 7c0 pciehp 0000:80:09.0:pcie04: get_latch_status: physical_slot = 7 pciehp 0000:80:09.0:pcie04: get_adapter_status: physical_slot = 7 pciehp 0000:80:09.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:09.0:pcie04: Command not completed in 1000 msec pciehp 0000:80:09.0:pcie04: pciehp_power_off_slot: SLOTCTRL a8 write cmd 400 pciehp 0000:80:09.0:pcie04: service driver pciehp loaded pciehp: pcie_port_service_register = 0 pciehp: PCI Express Hot Plug Controller Driver version: 0.4 --ep0oHQY+/Gbo/zt0-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/