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    SubjectRe: Regression: 2.6.34 boot fails on E5405 system, bisected: de08e2c26
    On 07/14/2010 11:19 AM, Pan, Jacob jun wrote:
    >> -----Original Message-----
    >> From: Ben Greear [mailto:greearb@candelatech.com]
    >> Sent: Wednesday, July 14, 2010 10:07 AM
    >> To: Pan, Jacob jun
    >> Cc: Robert Hancock; linux-kernel; jbarnes@virtuousgeek.org
    >> Subject: Re: Regression: 2.6.34 boot fails on E5405 system, bisected:
    >> de08e2c26
    >>
    >> On 07/14/2010 08:36 AM, Pan, Jacob jun wrote:
    >>> what is the config size of 10.1?
    >>> ls -l /sys/bus/pci/devices/0000:00:10.1/config
    >>>
    >>> if that is 256, it might be related to this patch.
    >>
    >> That patch is already in 2.6.34.y (with slight white-space
    >> change it seems: space before<).
    >>
    >> I just posted a patch to lkml that fixes the problem for me,
    >> based on a suggestion by Robert Hancock.
    >>
    >> I think this or something similar should to go 2.6.34.y stable
    >> as well.
    >>
    >
    >
    > I have not seen the patch yet, but there is no guarantee that
    > capabilities are always laid out in ascending address. So I think
    > we cannot bail out when
    > pcie_cap>> 20<= pos
    >
    > If that is some bug in the config space, can we fix it with some quirks?

    No idea, but if it's on this one motherboard/device, I imagine it's somewhere
    else as well.

    Is there at least a maximum number of capabilities that can exist so that
    you can limit the loop by that?

    Thanks,
    Ben

    >
    > Thanks,
    >
    > Jacob
    >
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    --
    Ben Greear <greearb@candelatech.com>
    Candela Technologies Inc http://www.candelatech.com



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