Re: [PATCH] PCI: Restrict VPD read permission to root

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On Wednesday, July 02, 2008 10:11 am Benjamin Li wrote:
> Hi Ben,
>
> Currently what we are seeing on older RHEL 4 and 5 machine is that udev
> is looking through the entire '/sys/bus/pci/devices/...' directory and
> reading the vpd contents.  When this happens our devices are hung before
> any user gets a chance to log in.  Therefore, we need to prevent this
> from happening at boot time.  Changing the permissions to root didn't
> solve our problem because we are running udev with root permissions.
>
> Thanks again.

Yeah I remember dealing with something similar when we added the sysfs rom 
file.  Why HAL opens & reads every sysfs file boggles the mind, but old 
versions do...

I'll queue up the fix and send another pull request to Linus today; did you 
see Matthew's comment about the cached revision field?

Thanks,
Jesse
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