Bug 6489

Summary:	High Speed USB devices don't work when ehci_hcd loaded (nforce4)
Product:	Drivers	Reporter:	Jan Christoph uhde (uhdejc)
Component:	USB	Assignee:	David Brownell (dbrownell)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	akpm, bunk, greg, StormByte
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.17-rc3	Subsystem:
Regression:	---	Bisected commit-id:
Bug Depends on:
Bug Blocks:	5089
Attachments:	syslog, messages information syslog - no udev [and no hal] apply NForce workaround earlier

Description Jan Christoph uhde 2006-05-03 14:22:41 UTC

Most recent kernel where this bug did not occur: 2.6.17-rc3
Distribution: debian/unstable
Hardware Environment: amd64 && a8n-premium
Probably copy of Bug: 5835|6201

Steps to reproduce:
Boot the system with a kernel wich has ehci_hcd enabled and plug the device in
any usb port.

Comment 1 Jan Christoph uhde 2006-05-03 14:31:35 UTC

Created attachment 8019 [details]
syslog, messages information

lsusb will not work as soon the device is attached.

Comment 2 Greg Kroah-Hartman 2006-05-03 14:36:21 UTC

So this worked in 2.6.17-rc3, yet it does not work now?

When did this last work?

And what are the kernel log messages you get when you plug the device in?

Comment 3 Greg Kroah-Hartman 2006-05-03 14:37:08 UTC

Ok, usb-storage issue, that's matt's area...

Comment 4 Matthew Dharm 2006-05-03 15:45:04 UTC

Interesting.... basic communication works for a little while, then the device
totally dies.

Can you turn off HALD and UDEVD and re-test?

Comment 5 Jan Christoph uhde 2006-05-04 10:42:42 UTC

Created attachment 8024 [details]
syslog - no udev [and no hal]

Most recent kernel where this bug did not occur: --
Please excuse for skimming over this:( UMS && ehci_hcd never worked on this
system in combination with linux:( The device works fine at other computers
(eg. my old pc && pre udev kernel [< 2.6.13 afaik]) and on this pc using the
'other' OS.

hardware-abstraction-layer-question:)
I am not sure about your request concerning HALD, i think that i do not have
the hal or hal-device-manager package installed. And i was not able to find any
hald executable anywhere. In case it should still be turned on please tell me
how to deactivate it.

Comment 6 Matthew Dharm 2006-05-04 11:06:43 UTC

If usb-storage and ehci_hcd never worked on this system, then it's likely an
EHCI problem.  The fact that the unit works on other systems with relatively
recent kernels is a futher indication that something is wrong with the
lower-level driver.

Greg, please re-assign.

Comment 7 Jim Siler 2006-05-22 12:23:17 UTC

I found this when I increased my system memory from 2GB to 4GB.  It had worked
previously.  If I
   #rmmod ehci_hcd
   #modprobe -i ehci_hcd
All is well again.

Kernels include 2.6.16-1.2096_FC5 and  2.6.16.13-4-smp (Suse 10.1).

Motherboards include Asus A8N32SLI Deluxe
and Gigaabyte GA-K8NPRO-SLI.

Comment 8 David Brownell 2006-06-13 12:17:08 UTC

Created attachment 8296 [details]
apply NForce workaround earlier

This patch may well resolve the problem with nforce and
more than 2 GB memory ...

Comment 9 Gonzalo Aguilar 2006-06-21 10:38:34 UTC

I can confirm this bug... 

Has been around from earlier 2.6.1X kernels, and still is not solved.

Comment 10 Greg Kroah-Hartman 2006-08-30 00:56:32 UTC

Please test David's last patch everyone...

Comment 11 Greg Kroah-Hartman 2006-08-30 01:19:20 UTC

*** Bug 6214 has been marked as a duplicate of this bug. ***

Comment 12 Adrian Bunk 2006-11-29 19:10:15 UTC

The patch from this bug was included in kernel 2.6.18.