[gentoo-amd64] Re: ohci-hcd slows down boot

[Duncan]

Karol Krizka posted <200510211844.12551.kkrizka@×××××.com>, excerpted
below,  on Fri, 21 Oct 2005 18:44:06 -0700:

> For some time I have been having this problem: when bottom the system hangs
> for several minutes before continuing duing the "Checking for ohci-hcd..." (I
> think, might be "Loading") stage. I am not sure what the problem is and it
> has persisted through several kernel versions. Do you know if there is a way
> to fix this? If not can it be removed?

You could compile the kernel without the affected module.

Note that with USB there are three bus standards to choose from, OHCI and
UHCI are USB 1.x standards (UHCI is the Intel/Via solution, OHCI the
community standard, doing more in hardware, lspci -v will usually list the
controller with the interface you need) EHCI is USB 2.x).

You'll normally need only one of the above, UHCI, OHCI, or EHCI, possibly
EHCI for USB 2.0 and one of the others, if your board offers some USB 1.x
only, and some USB 2.x ports.  The only time you'd need both of the USB
1.x interface standards would be if you had one onboard and the second as
a plugin board.  See the associated kernel config help items for each of
the above options, for more details.

Figure out which of the above you have, and disable the others, and it
could fix your problem.  That's assuming, of course, that you don't have
OHCI, thus the reason for the long pause trying to detect it.  If you have
it and use it so can't disable it, and it's simply pausing a while to
detect it, this obviously won't be a lot of help, but chances are, you
don't have OHCI, so it takes a while trying to find it before giving up.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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