Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758215Ab3DXVRn (ORCPT ); Wed, 24 Apr 2013 17:17:43 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:47612 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1758073Ab3DXVRm (ORCPT ); Wed, 24 Apr 2013 17:17:42 -0400 Date: Wed, 24 Apr 2013 17:17:41 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Sedat Dilek cc: Stephen Rothwell , , , Linux PM List , "Rafael J. Wysocki" , Subject: Re: linux-next: Tree for Apr 24 [ PM: Device 1-1.2 failed to resume async: error -32 ] In-Reply-To: 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: 1556 Lines: 44 On Wed, 24 Apr 2013, Sedat Dilek wrote: > > Did this work differently under earlier kernels? > > > > Unfortunately, s/r did not work for several Linux-Next releases as > there is missing tglx's patch pendinging in tip.git/timers/core. Have you tried testing under 3.8? Or earlier releases? > > This indicates that the optical mouse didn't survive the suspend/resume > > sequence and had to be reenumerated. Without more information, there's > > no way to tell specifically what went wrong during the initial reset at > > timestamp 62.353997. > > > > If you want to pursue this farther, you could enable CONFIG_USB_DEBUG. > > You could also collect a usbmon trace for bus 1 showing what happens > > during the suspend and resume. > > > > Hmm, I can try to enable CONFIG_USB_DEBUG and build a new kernel. > > Can you give me more hints how to do a usbmon-trace? See Documentation/usb/usbmon.txt. > > On the other hand, what difference does it really make if a mouse has > > to be reenumerated? > > > > As a non-USB-expert it's hard to interprete such "bogus" lines in your logs. > I am curious enough to ask which is fair :-). > AFAICS in your eyes this is "harmless"? If the device continues to work normally after the resume and none of your programs are affected, then it is harmless. 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/