Re: Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after

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Toralf Förster wrote:
> Hello WIth  2.6.28-rc6-00007-ged31348 I get that warning message
> within dmesg udner a stable Gentoo system with udev-124. With the
> current kernel I'm using (2.6.26.8) however there isn't such a
> warning.

I don't see a question, but I'm assuming it's "what do I need to do to
prevent this warning?", right?  :-)

The answer is "modprobe ehci_hcd before [ou]hci_hcd".  This warning is
due to kernel commit c78487b1d935d938014ddbec7b3d5816c1580fce (in
2.6.27.3; it's commit 9beeee6584b9aa4f9192055512411484a2a624df in
mainline) if that helps.

The comment on that commit says "maybe this will convince anyone still
doing it wrong", though I can't imagine how on earth you're supposed to
do it right.  It's not like you can control which order udev runs
modprobes in.  Any solution that depends on an install command in
modprobe.conf for ehci-hcd (and blacklisting both [uo]hci-hcd) will fail
on some hardware, or load unnecessary drivers.

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