Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263364AbTEMR7X (ORCPT ); Tue, 13 May 2003 13:59:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263322AbTEMR5n (ORCPT ); Tue, 13 May 2003 13:57:43 -0400 Received: from e6.ny.us.ibm.com ([32.97.182.106]:26018 "EHLO e6.ny.us.ibm.com") by vger.kernel.org with ESMTP id S262386AbTEMR5F (ORCPT ); Tue, 13 May 2003 13:57:05 -0400 Date: Tue, 13 May 2003 11:11:20 -0700 From: Greg KH To: Paul Fulghum Cc: Alan Stern , Andrew Morton , "linux-kernel@vger.kernel.org" , Arnd Bergmann , johannes@erdfelt.com Subject: Re: 2.5.69 Interrupt Latency Message-ID: <20030513181120.GA10790@kroah.com> References: <1052840106.2255.24.camel@diemos> <20030513173044.GB10284@kroah.com> <1052830860.1992.2.camel@diemos> <20030513180913.GA10752@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030513180913.GA10752@kroah.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1383 Lines: 36 On Tue, May 13, 2003 at 11:09:13AM -0700, Greg KH wrote: > On Tue, May 13, 2003 at 08:01:01AM -0500, Paul Fulghum wrote: > > On Tue, 2003-05-13 at 12:30, Greg KH wrote: > > > On Tue, May 13, 2003 at 10:35:07AM -0500, Paul Fulghum wrote: > > > > On Tue, 2003-05-13 at 10:26, Alan Stern wrote: > > > > > > > > > Putting in a sanity check for the global suspend state will be very easy. > > > > > But I would like to point out that this "global suspend" does not refer to > > > > > the entire system, only the USB bus. > > > > > > > > That is a problem then, because the delay can still > > > > occur during normal system operation. > > > > > > Ok, can you try the attached patch and see if it causes your latency > > > problem to go away? > > > > I applied the patch plus a couple of printk statements, > > and the wakeup_hc() is being continuously called > > as well as actually executing the delay. > > Is the suspend_hc() function ever getting called by anyone in that > driver? Ok, nevermind, I see where it would be getting called under normal operation... Hm, I don't really know. Johannes, any thoughts? thanks, greg k-h - 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/