From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756022AbYGGS6i (ORCPT ); Mon, 7 Jul 2008 14:58:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756328AbYGGS6O (ORCPT ); Mon, 7 Jul 2008 14:58:14 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:33852 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755884AbYGGS6M (ORCPT ); Mon, 7 Jul 2008 14:58:12 -0400 Date: Mon, 7 Jul 2008 20:53:39 +0200 From: Pavel Machek To: kernel list , "Rafael J. Wysocki" Subject: unregister_netdevice: waiting for ppp0 to become free. Usage count = 1 Message-ID: <20080707185339.GA1589@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! Is `subject` message normal? It made tasks unfreezeable and s2ram failed :-(. Jul 7 19:46:10 amd pppd[2843]: Terminating on signal 2 Jul 7 19:46:10 amd pppd[2843]: Connect time 22.4 minutes. Jul 7 19:46:10 amd pppd[2843]: Sent 710742 bytes, received 582690 bytes. Jul 7 19:46:11 amd pppd[2843]: Connection terminated. Jul 7 19:46:21 amd kernel: unregister_netdevice: waiting for ppp0 to become free. Usage count = 1 Jul 7 19:46:52 amd last message repeated 3 times Jul 7 19:47:43 amd last message repeated 5 times Jul 7 19:47:48 amd su[3438]: unknown configuration item `FAIL_DELAY' ... Jul 7 19:47:50 amd su[3441]: pam_unix(su:session): session opened for user root by (uid=0) Jul 7 19:47:53 amd kernel: Syncing filesystems ... done. Jul 7 19:48:13 amd kernel: Freezing user space processes ... <0>unregister_netdevice: waiting for ppp0 to become free. Usage count = 1 Jul 7 19:48:13 amd kernel: unregister_netdevice: waiting for ppp0 to become free. Usage count = 1 Jul 7 19:48:13 amd kernel: Jul 7 19:48:13 amd kernel: Freezing of tasks failed after 20.00 seconds (2 tasks refusing to freeze):Jul 7 19:48:13 amd kernel: task PC stack pid father Jul 7 19:48:13 amd kernel: init D bfdd9e28 0 1 0 Jul 7 19:48:13 amd kernel: f7c6deac 00000082 f7c6de6c bfdd9e28 c0285970 f7c6de54 00000000 d95ee258 Jul 7 19:48:13 amd kernel: 00000c85 f7c6bb1c f7c6b8f0 f7c6bb1c c2000c80 f7c6c000 f7600e08 00000000 Jul 7 19:48:13 amd kernel: c098c080 c098c080 00000001 c098c080 c0274387 f7303000 0006ebdd 00000000 Jul 7 19:48:13 amd kernel: Call Trace: Jul 7 19:48:13 amd kernel: [] core_sys_select+0x1c0/0x2d0 Jul 7 19:48:13 amd kernel: [] poison_obj+0x27/0x50 Jul 7 19:48:13 amd kernel: [] __user_walk_fd+0x49/0x60 Jul 7 19:48:13 amd kernel: [] cache_free_debugcheck+0xe2/0x250 Jul 7 19:48:13 amd kernel: [] refrigerator+0xba/0xe0 Jul 7 19:48:13 amd kernel: [] get_signal_to_deliver+0x3e5/0x470 Jul 7 19:48:13 amd kernel: [] do_notify_resume+0x93/0x6f0 Jul 7 19:48:13 amd kernel: [] sys_select+0x182/0x1b0 Jul 7 19:48:13 amd kernel: [] work_notifysig+0x13/0x19 Jul 7 19:48:13 amd kernel: [] do_sync_write+0x13/0x120 Jul 7 19:48:13 amd kernel: ======================= .... How do I locate the processes that failed to freeze? Something like 2000 lines of dump follows. sendmail looks like one of them: Jul 7 19:48:13 amd kernel: sendmail D f6c3bcf8 0 3419 3418 Jul 7 19:48:13 amd kernel: f6c3bd0c 00000086 00000002 f6c3bcf8 f6c3bcf0 00000000 00000001 00000000 Jul 7 19:48:13 amd kernel: 00000000 f75762dc f75760b0 f75762dc c2009c80 f6c3a000 d74e03b8 f71586c8 Jul 7 19:48:13 amd kernel: c098c080 c098c080 00000002 c098c080 001b5b60 00000000 f71586c8 c092094c Jul 7 19:48:13 amd kernel: Call Trace: Jul 7 19:48:13 amd kernel: [] __mutex_lock_slowpath+0x97/0x240 Jul 7 19:48:13 amd kernel: [] rtnetlink_rcv+0x0/0x20 Jul 7 19:48:13 amd kernel: [] netdev_run_todo+0x11/0x250 Jul 7 19:48:13 amd kernel: [] rtnetlink_rcv_msg+0x0/0x210 Jul 7 19:48:13 amd kernel: [] rtnetlink_rcv+0x0/0x20 Jul 7 19:48:13 amd kernel: [] netlink_rcv_skb+0x70/0xa0 Jul 7 19:48:13 amd kernel: [] rtnetlink_rcv+0x0/0x20 Jul 7 19:48:13 amd kernel: [] netlink_unicast+0x1e5/0x210 Jul 7 19:48:13 amd kernel: [] netlink_sendmsg+0x1e8/0x2d0 Jul 7 19:48:13 amd kernel: [] sock_sendmsg+0xce/0x100 Jul 7 19:48:13 amd kernel: [] autoremove_wake_function+0x0/0x50 Jul 7 19:48:13 amd kernel: [] __wake_up+0x38/0x50 Jul 7 19:48:13 amd kernel: [] netlink_insert+0xc5/0x140 Jul 7 19:48:13 amd kernel: [] sys_sendto+0x133/0x180 Jul 7 19:48:13 amd kernel: [] move_addr_to_user+0x5f/0x70 Jul 7 19:48:13 amd kernel: [] sys_getsockname+0xbf/0xd0 Jul 7 19:48:13 amd kernel: [] d_alloc+0x1b/0x190 Jul 7 19:48:13 amd kernel: [] kmem_cache_alloc+0x5b/0xc0 Jul 7 19:48:13 amd kernel: [] d_alloc+0x1b/0x190 Jul 7 19:48:13 amd kernel: [] inotify_d_instantiate+0x18/0x80 Jul 7 19:48:13 amd kernel: [] d_alloc+0x102/0x190 Jul 7 19:48:13 amd kernel: [] d_instantiate+0x3b/0x50 Jul 7 19:48:13 amd kernel: [] sock_attach_fd+0x80/0xc0 Jul 7 19:48:13 amd kernel: [] sys_socketcall+0x198/0x280 Jul 7 19:48:13 amd kernel: [] syscall_call+0x7/0xb Jul 7 19:48:13 amd kernel: [] ieee80211softmac_auth_resp+0x250/0x440 Jul 7 19:48:13 amd kernel: ======================= Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html