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    SubjectRe: Regression: 2.6.34 boot fails on E5405 system, bisected: de08e2c26
    On 07/14/2010 07:14 AM, Ben Greear wrote:
    > On 07/13/2010 08:29 PM, Robert Hancock wrote:
    >> On Tue, Jul 13, 2010 at 8:22 PM, Ben Greear<greearb@candelatech.com> wrote:
    >>>> Can you print out bus->number and devfn and look that up in lspci to
    >>>> find out which device it's hitting? It looks like there's a device with
    >>>> a PCI Express extended capability header that has a extended capability
    >>>> ID of 0000h and a next capability offset of 100h, which points to
    >>>> itself, causing the infinite loop. I'm guessing that if pcie_cap>> 20
    >>>> <= pos then it should give up and break out of the loop, since it means
    >>>> that the next capability pointer is invalidly pointing to the same or a
    >>>> previous entry..
    >>>
    >>> Bailing out like that does let it boot.
    >>>
    >>> As for the bus and devfn: bus: 0 devfn: 129 (decimal)
    >>>
    >>> I'm not sure what to look for in lspci, but here is the output with -n:
    >>
    >> That will be device 0x10 function 1, this one:
    >>
    >> 00:10.1 0600: 8086:25f0 (rev b1)
    >>
    >> Intel 5000 Series Chipset FSB Registers, apparently.. What does lspci
    >> -vv show for that device?
    >
    > 00:10.1 Host bridge: Intel Corporation 5000 Series Chipset FSB Registers (rev b1)
    > Subsystem: Super Micro Computer Inc Unknown device 9780
    > Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    > Kernel modules: i5000_edac, i5k_amb
    >

    Could you get the output of lspci -vv -xxxx for this device? I'm
    confused why this device would identify as having extended config space...

    -hpa


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