linux-kernel - 2.6.36-gitX spams logs with "hub 4-0:1.0: unable to enumerate USB device on port 5" messages

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Message-ID: <4CCE1C11.6050807@lwfinger.net>
Date:	Sun, 31 Oct 2010 20:46:57 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: 2.6.36-gitX spams logs with "hub 4-0:1.0: unable to enumerate USB
 device on port 5" messages

With the current mainline pull (get describe shows v2.6.36-9871-g3985c7c), my
logs are spammed with

[  101.308220] hub 4-0:1.0: unable to enumerate USB device on port 5
[  101.548357] hub 2-0:1.0: unable to enumerate USB device on port 5
[  101.760094] hub 4-0:1.0: unable to enumerate USB device on port 5
[  102.000128] hub 2-0:1.0: unable to enumerate USB device on port 5
[  102.212187] hub 4-0:1.0: unable to enumerate USB device on port 5
[  102.452196] hub 2-0:1.0: unable to enumerate USB device on port 5
[  102.664131] hub 4-0:1.0: unable to enumerate USB device on port 5

The USB devices on my system are

finger@...rylap:~/wireless-testing> lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 001 Device 003: ID 04f2:b016 Chicony Electronics Co., Ltd VGA 30fps UVC Webcam
Bus 001 Device 004: ID 07d1:3300 D-Link System
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

I had this problem in the past when ohci_hcd was being loaded before ehci_hcd,
but that is not the case now as is shown by lsmod:

mbcache                 7798  1 ext3
ohci_hcd               22322  0
sd_mod                 29184  4
ehci_hcd               37829  0
usbcore               158887  4 r8712u,ohci_hcd,ehci_hcd


Larry
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