Return-path: Received: from sender153-mail.zoho.com ([74.201.84.153]:21760 "EHLO sender153-mail.zoho.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753952AbcDCQUM (ORCPT ); Sun, 3 Apr 2016 12:20:12 -0400 Subject: Re: GDM7240 - NULL pointer dereference To: poma References: <5700ED33.6020200@zoho.com> <57010C05.1050107@gmail.com> Cc: linux-wireless@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, Oliver Neukum From: Alex Message-ID: <570142B5.9060800@zoho.com> (sfid-20160403_182019_672747_3F131B61) Date: Sun, 3 Apr 2016 19:20:05 +0300 MIME-Version: 1.0 In-Reply-To: <57010C05.1050107@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Thanks, looks like exactly the same issue, I'll check if it works on 4.5. /--Regards, Alex/ On 03/04/16 15:26, poma wrote: > On 03.04.2016 12:15, Alex wrote: >> Hello, >> [1.] System hang when connecting USB modem (LU150) >> [2.] I'm running 4.4.5 kernel (Arch Linux). When this modem is connected >> I'm getting below trace in journal and system becomes unusable - lsusb, >> logout and some other operations lead to a complete hang, the only way >> out is hardware power off. This modem works perfectly on 4.1.20 kernel - >> attaching all outputs for both kernels. > ... > > See if it is related to > http://thread.gmane.org/gmane.linux.usb.general/135626 > > if so, kernel >= 4.5 > i.e. > https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/drivers/net/usb/cdc_ether.c?h=linux-4.5.y&id=29c6dd5 >