From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753837AbaCJRDG (ORCPT ); Mon, 10 Mar 2014 13:03:06 -0400 Received: from mail-out1.informatik.tu-muenchen.de ([131.159.0.8]:41640 "EHLO smtp1.informatik.tu-muenchen.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753399AbaCJRDD (ORCPT ); Mon, 10 Mar 2014 13:03:03 -0400 Message-ID: <531DEEA6.4090808@totakura.in> Date: Mon, 10 Mar 2014 17:56:06 +0100 From: Sree Harsha Totakura User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: pppd service crash in linux-3.13.6 References: <531A37FF.4000509@totakura.in> In-Reply-To: <531A37FF.4000509@totakura.in> X-Enigmail-Version: 1.6 X-Forwarded-Message-Id: <531A37FF.4000509@totakura.in> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Using linux-3.13.6, I am observing the following output from the pppd kernel thread. This happens when I try to suspend my computer and it *stops* the computer from suspending. I am using ppp via a bluetooth modem. Trace: [22735.115313] PM: Syncing filesystems ... done. [22735.665613] PM: Preparing system for mem sleep [22735.665829] Freezing user space processes ... [22755.659538] Freezing of tasks failed after 20.004 seconds (1 tasks refusing to freeze, wq_ busy=0): [22755.659555] pppd D ffff8800376c9a58 0 16801 1 0x00000006 [22755.659557] ffff8800376c9750 0000000000000046 0000000000012e80 0000000000012e80 [22755.659560] ffff8802a1c1dfd8 ffff8800376c9750 0000000000000009 ffff8802a1c1dd78 [22755.659562] 0000000000000046 ffff8800376c9750 0000000000000028 ffff8800376c9750 [22755.659564] Call Trace: [22755.659569] [] ? do_exit+0x937/0xa50 [22755.659573] [] ? oops_end+0x91/0xd0 [22755.659575] [] ? no_context+0x1f3/0x1ff [22755.659577] [] ? __do_page_fault+0x89/0x500 [22755.659581] [] ? free_pcppages_bulk+0x17c/0x3b0 [22755.659584] [] ? free_hot_cold_page_list+0x3e/0x90 [22755.659586] [] ? page_fault+0x28/0x30 [22755.659591] [] ? ppp_register_channel+0x13/0x20 [ppp_generic] [22755.659594] [] ? ppp_asynctty_open+0x12b/0x170 [ppp_async] [22755.659596] [] ? tty_ldisc_open.isra.2+0x27/0x60 [22755.659598] [] ? tty_ldisc_hangup+0x1e3/0x220 [22755.659601] [] ? __tty_hangup+0x2c4/0x440 [22755.659603] [] ? disassociate_ctty+0x61/0x270 [22755.659605] [] ? do_exit+0x7f2/0xa50 [22755.659607] [] ? recalc_sigpending+0x12/0x50 [22755.659609] [] ? __set_task_blocked+0x28/0x70 [22755.659611] [] ? do_group_exit+0x34/0xa0 [22755.659613] [] ? SyS_exit_group+0xb/0x10 [22755.659615] [] ? system_call_fastpath+0x16/0x1b [22755.659618] [22755.659619] Restarting tasks ... done. If you need any more info, I am happy to provide. Regards, Sree