Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760620AbYF0UgR (ORCPT ); Fri, 27 Jun 2008 16:36:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752626AbYF0UgC (ORCPT ); Fri, 27 Jun 2008 16:36:02 -0400 Received: from netrider.rowland.org ([192.131.102.5]:3359 "HELO netrider.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751402AbYF0UgA (ORCPT ); Fri, 27 Jun 2008 16:36:00 -0400 Date: Fri, 27 Jun 2008 16:35:59 -0400 (EDT) From: Alan Stern X-X-Sender: stern@netrider.rowland.org To: Lukas Hejtmanek cc: Greg KH , Kernel development list , USB list Subject: Re: 2.6.26-rc1 regression since 2.6.25 - problem in 2.6.26-rc8 again In-Reply-To: <20080627091717.GA4998@ics.muni.cz> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 50 On Fri, 27 Jun 2008, Lukas Hejtmanek wrote: > > What does usbmon reveal when you dock the laptop again and then plug in > > the disk (see Documentation/usb/usbmon.txt)? > > attached as 1-26.mon.out (2.6.26-rc8) > > > Can you provide a comparable usbmon log for 2.6.25? > > attached as 1-25.mon.out This is very confusing. It appears that the two usbmon logs don't show the same actions on your part. Let's try to keep this as simple as possible. We'll consider a single fixed course of action: Make sure the disk isn't mounted and isn't in use. Start collecting the usbmon log. Remove the disk. Wait at least 10 seconds. Undock the laptop. Wait at least 10 seconds. Dock the laptop again. Wait at least 10 seconds. Plug in the disk. Stop the usbmon log. (The reason for those 10-second delays is because the USB stack will automatically suspend an idle hub after a few seconds of inactivity.) Do exactly the same thing under both operating system versions, and then we should have suitably comparable logs. 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/