Re: Regression: 2.6.34 boot fails on E5405 system, bisected: de08e2c26

[Ben Greear]

On 07/14/2010 11:19 AM, Pan, Jacob jun wrote:
> > -----Original Message-----
> > From: Ben Greear [mailto:greearb@xxxxxxxxxxxxxxx]
> > Sent: Wednesday, July 14, 2010 10:07 AM
> > To: Pan, Jacob jun
> > Cc: Robert Hancock; linux-kernel; jbarnes@xxxxxxxxxxxxxxxx
> > 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@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com

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