From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753729AbXKVSkz (ORCPT ); Thu, 22 Nov 2007 13:40:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751764AbXKVSkq (ORCPT ); Thu, 22 Nov 2007 13:40:46 -0500 Received: from mail.issp.bas.bg ([195.96.236.10]:33870 "EHLO mail.issp.bas.bg" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751204AbXKVSkq (ORCPT ); Thu, 22 Nov 2007 13:40:46 -0500 From: Marin Mitov Organization: Institute of Solid State Physics To: Alan Stern Subject: Re: [linux-usb-devel] 2.6.24-rc3-mm1: usb mouse doesn't work Date: Thu, 22 Nov 2007 19:41:44 +0200 User-Agent: KMail/1.9.7 References: In-Reply-To: Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200711221941.44646.mitov@issp.bas.bg> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 22 November 2007 07:07:00 pm you wrote: > On Thu, 22 Nov 2007, Kirill A. Shutemov wrote: > > > > uhci_hcd 0000:00:1d.3: UHCI Host Controller > > > > uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4 > > > > uhci_hcd 0000:00:1d.3: irq 7, io base 0x0000bf20 > > > > usb usb4: configuration #1 chosen from 1 choice > > > > hub 4-0:1.0: USB hub found > > > > hub 4-0:1.0: 2 ports detected > > > > usb usb4: new device found, idVendor=0000, idProduct=0000 > > > > usb usb4: new device strings: Mfr=3, Product=2, SerialNumber=1 > > > > usb usb4: Product: UHCI Host Controller > > > > usb usb4: Manufacturer: Linux 2.6.24-kas-alt1 uhci_hcd > > > > usb usb4: SerialNumber: 0000:00:1d.3 > > > > uhci_hcd 0000:00:1d.3: FGR not stopped yet! > > > > > > I've had some strangenesses with USB lately. Sometimes running `lsusb' > > > makes the USB system notice a newly attached device. > > > > No. But I have new messages in dmesg: > > > > uhci_hcd 0000:00:1d.3: FGR not stopped yet! > > uhci_hcd 0000:00:1d.2: FGR not stopped yet! > > uhci_hcd 0000:00:1d.1: FGR not stopped yet! > > uhci_hcd 0000:00:1d.0: FGR not stopped yet! > > > > > Is that "FGR not stopped yet!" messgae new behaviour? > > > > It is a new message since 2.6.24-rc3. I have never try -mm tree before. > > These messages could indicate a timing problem. You can see the code > that writes the messages near the end of wakeup_rh() in > drivers/usb/host/uhci-hcd.c. > > The message gets written if the controller hardware hasn't turned off a > particular bit after a 4-us delay. If the udelay() function wasn't > working right, it could cause this problem. udelay() _is_ OK for 2.6.24-rc3, so it is not the cause of the problem Marin Mitov > > Alan Stern > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/