Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932274AbZJJJy7 (ORCPT ); Sat, 10 Oct 2009 05:54:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756759AbZJJJy6 (ORCPT ); Sat, 10 Oct 2009 05:54:58 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:43593 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756457AbZJJJy5 (ORCPT ); Sat, 10 Oct 2009 05:54:57 -0400 From: Oliver Neukum To: Benjamin Herrenschmidt Subject: Re: USB serial regression 2.6.31.1 -> 2.6.31.2 Date: Sat, 10 Oct 2009 11:55:47 +0200 User-Agent: KMail/1.10.3 (Linux/2.6.31-rc9-0.1-default; KDE/4.1.3; x86_64; ; ) Cc: Josua Dietze , Greg KH , Alan Stern , "linux-kernel@vger.kernel.org" , "linux-usb@vger.kernel.org" , Hugh Blemings References: <1255134315.2139.8.camel@pasglop> <4AD03A03.5050702@draisberghof.de> <1255160461.3387.4.camel@pasglop> In-Reply-To: <1255160461.3387.4.camel@pasglop> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200910101155.48394.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 853 Lines: 20 Am Samstag, 10. Oktober 2009 09:41:01 schrieb Benjamin Herrenschmidt: > suspend is a good candidate yeah, autosuspend might be causing something > like that, I'll see what I can find. I didn't spot an obvious change to > the USB suspend policy between those two kernels, but it could be > trigged by one of the numerous changes that went into usb-serial. Then you can simply test this hunch by switching it off. If that helps please recompile with CONFIG_USB_DEBUG enabled? But I don't understand why the stable series is affected. Autosuspend patches didn't go into it, did they Greg? Regards Oliver -- 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/