Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753038AbcKPMk3 (ORCPT ); Wed, 16 Nov 2016 07:40:29 -0500 Received: from mx2.suse.de ([195.135.220.15]:56478 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752194AbcKPMk1 (ORCPT ); Wed, 16 Nov 2016 07:40:27 -0500 Message-ID: <1479299670.2000.13.camel@suse.com> Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5 From: Oliver Neukum To: wim@djo.tudelft.nl Cc: poma , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Date: Wed, 16 Nov 2016 13:34:30 +0100 In-Reply-To: <20161115132930.GA20918@djo.tudelft.nl> References: <20160908115803.GA28274@djo.tudelft.nl> <1473337238.32073.2.camel@suse.com> <20160908125850.GC28274@djo.tudelft.nl> <1476713445.3938.1.camel@suse.com> <20161017152042.GA26559@djo.tudelft.nl> <1476793123.2637.3.camel@suse.com> <20161115001619.GA21030@djo.tudelft.nl> <20161115132930.GA20918@djo.tudelft.nl> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 367 Lines: 13 On Tue, 2016-11-15 at 14:29 +0100, Wim Osterholt wrote: > I experience a sliding scale. > With debug it crashes immediately. It may crash later on (even at shutdown > time). It's not even an oops but a warning. In the end it happens to just > work. This is very odd. We need to know where it crashes. Please try the insane debug patch I posted. Regards Oliver