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Date: Fri, 21 Jan 2005 04:26:54 +0000
From: Jason Henson <jason@ec.rr.com>
To: freebsd-questions@freebsd.org
References: <6.2.0.14.2.20050120184425.00bff740@cheyenne.wixb.com>
In-Reply-To: <6.2.0.14.2.20050120184425.00bff740@cheyenne.wixb.com> (from
	jbronson@wixb.com on Thu Jan 20 19:47:12 2005)
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Subject: Re: 5.3 interrupt storm
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On 01/20/05 19:47:12, J.D. Bronson wrote:
> I have read a few tips on this - but looking for something that =20
> works.
>=20
> I have DISABLED USB support in the bios on my IBM 305 servers.
> It seems FreeBSD still 'sees' USB.
>=20
> I copied the GENERIC kernel to TEST kernel
> I removed -all- USB support from the new kernel.
>=20
> I then rebooted and I still see this:
>=20
> ohci0: <OHCI (generic) USB controller> at device 15.2 on pci0
> ohci0: [GIANT-LOCKED]
> usb0: OHCI version 1.0, legacy support
> usb0: <OHCI (generic) USB controller> on ohci0
> usb0: USB revision 1.0
> uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> ...
> ....
> Interrupt storm detected on "irq11: ohci0"; throttling interrupt =20
> source
>=20
>=20
> What can I do to get rid of ALL USB support on this 5.3 system as I =20
> dont use it and dont want these 'storms' of interrupts!
>=20
> thanks in advance!
>=20
>

If it is not in the kernel see if the module is being loaded.  Use =20
kldstat.  Did you comment out the usbd in /etc/rc.conf?