From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754709AbcEaL4P (ORCPT ); Tue, 31 May 2016 07:56:15 -0400 Received: from mailin.studentenwerk.mhn.de ([141.84.225.229]:49984 "EHLO email.studentenwerk.mhn.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754463AbcEaL4L convert rfc822-to-8bit (ORCPT ); Tue, 31 May 2016 07:56:11 -0400 From: Pierre Sauter To: Oliver Neukum Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Alan Stern Subject: Re: PROBLEM: Kernel Bug on USB unplugging (Elo TouchSystems CarrollTouch 4500U) Date: Tue, 31 May 2016 13:56:07 +0200 Message-ID: <1834542.Q4pgXUeqNV@stwm.de> Organization: Studentenwerk User-Agent: KMail/4.14.3 (Linux/4.4.0-14-generic; KDE/4.14.13; x86_64; ; ) In-Reply-To: <1464682390.10800.3.camel@suse.com> References: <3584657.zr8b82jmFp@stwm.de> <1464682390.10800.3.camel@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Works like a charm, problem fixed! Thanks a lot. I hope you submit the patch. Best Regards -- Pierre Sauter Studentenwerk München IT-Abteilung Leopoldstraße 15 80802 München Tel: +49 89 38196-157 ------- Am Dienstag, 31. Mai 2016, 10:13:10 schrieben Sie: > On Mon, 2016-05-30 at 18:47 +0200, Pierre Sauter wrote: > > On unplugging this USB Touchscreen, everytime I get either: > > > > [ 161.596055] BUG: unable to handle kernel NULL pointer dereference at 00000015 > > [ 161.596093] IP: [] get_next_timer_interrupt+0x80/0x270 > > or > > [ 155.892061] BUG: unable to handle kernel paging request at 30303046 > > [ 155.892101] IP: [] get_next_timer_interrupt+0x8a/0x290 > > > > and then panic and the system is unresponsive. > > Please try the attached patch. > > Regards > Oliver >