[PlanetCCRMA] Fresh Installation, IRQ, and USB
Fernando Lopez-Lezcano
nando@ccrma.Stanford.EDU
Tue Aug 2 17:34:01 2005
On Tue, 2005-08-02 at 04:42, Da Xiong wrote:
> Just installed CCRMA on my FC3 machine, but now USB will not work.
> During the udev part of boot, system sets up storage and audio, then
> disables IRQ 21. After that my USB hub does not work.
>
> Modprobe.conf looked like this before CCRMA:
>
> alias eth0 via-rhine
> alias snd-card-0 snd-maestro3
> options snd-card-0 index=0
> install snd-maestro3 /sbin/modprobe --ignore-install snd-maestro3 &&
> /usr/sbin/alsactl restore >/dev/null 2>&1 || :
> remove snd-maestro3 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ;
> }; /sbin/modprobe -r --ignore-remove snd-maestro3
> alias usb-controller ehci-hcd
> alias usb-controller1 uhci-hcd
>
> Running Linux version 2.6.12-1.1372_FC3
> (bhcompile@tweety.build.redhat.com) (gcc version 3.4.3 20050227 (Red
> Hat 3.4.3-22)) #1 Fri Jul 15 00:59:10 EDT 2005
>
> Now modprobe.conf looks like this:
>
> alias eth0 via-rhine
> alias snd-card-0 snd-maestro3
> options snd-card-0 index=0
> install snd-maestro3 /sbin/modprobe --ignore-install snd-maestro3 &&
> /usr/sbin/alsactl restore >/dev/null 2>&1 || :
> remove snd-maestro3 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ;
> }; /sbin/modprobe -r --ignore-remove snd-maestro3
> alias usb-controller ehci-hcd
> alias usb-controller1 uhci-hcd
>
> Running Linux version 2.6.10-2.1.ll.rhfc3.ccrma
> (machbuild@cmn37.Stanford.EDU) (gcc version 3.4.2 20041017 (Red Hat
> 3.4.2-6.fc3)) #1 Thu Dec 30 03:08:13 EST 2004
>
> I don't see any modprobe differences, but I am really stumped.
> Something about udev?
Have you tried the planetccrma-core-edge meta package? That includes a
newer kernel with the realtime preempt patches. Maybe it will work
better. Do you have a log of the what happens when irq21 is disabled?
-- Fernando