Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755869Ab0G3DbW (ORCPT ); Thu, 29 Jul 2010 23:31:22 -0400 Received: from smtp1.Stanford.EDU ([171.67.219.81]:38751 "EHLO smtp.stanford.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755286Ab0G3DbV (ORCPT ); Thu, 29 Jul 2010 23:31:21 -0400 Subject: 2.6.33.6-rt26: oops From: Fernando Lopez-Lezcano To: john stultz Cc: Thomas Gleixner , LKML , rt-users , Steven Rostedt , Nick Piggin , nando@ccrma.Stanford.EDU Content-Type: text/plain; charset="UTF-8" Date: Thu, 29 Jul 2010 20:30:42 -0700 Message-ID: <1280460642.2173.3.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 (2.28.3-1.fc12) Content-Transfer-Encoding: 7bit X-Spam: Probability=8%, Report=' BODY_SIZE_3000_3999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, DATE_TZ_NA 0, __CP_MEDIA_BODY 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __TO_MALFORMED_2 0, __URI_NO_MAILTO 0, __URI_NO_PATH 0, __URI_NO_WWW 0' Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3944 Lines: 81 Hi all... This may not be rt related but here it goes anyway. It happened when I tried to restart my iptables service (/sbin/service iptables start). I think a day or two ago I had another network related hang, but it was a complete hang (no clues left behind - power button to reset). -- Fernando Jul 29 18:27:57 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Jul 29 18:27:57 localhost kernel: IP: [] exit_creds+0xc/0x54 Jul 29 18:27:57 localhost kernel: *pdpt = 0000000000a68001 *pde = 0000000000000000 Jul 29 18:27:57 localhost kernel: Oops: 0000 [#1] PREEMPT SMP Jul 29 18:27:57 localhost kernel: last sysfs file: /sys/devices/virtual/net/pan0/statistics/collisions Jul 29 18:27:57 localhost kernel: Modules linked in: snd_seq_midi snd_seq_midi_event snd_seq_dummy snd_usb_audio snd_usb_lib snd_rawmidi fuse rfcomm sco bridge stp llc bnep l2cap sunrpc cpufreq_ondemand acpi_cpufreq ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 snd_hda_codec_analog ecb iwl3945 snd_hda_intel snd_hda_codec iwlcore thinkpad_acpi btusb sdhci_pci sdhci mmc_core snd_hwdep e1000e snd_seq ohci1394 ricoh_mmc snd_seq_device snd_pcm snd_timer snd mac80211 i2c_i801 iTCO_wdt iTCO_vendor_support joydev cfg80211 bluetooth snd_page_alloc rfkill soundcore yenta_socket rsrc_nonstatic i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: microcode] Jul 29 18:27:57 localhost kernel: Jul 29 18:27:57 localhost kernel: Pid: 6956, comm: sirq-rcu/1 Not tainted 2.6.33.6-147.2.4.rt26.1.fc12.ccrma.i686.rtPAE #1 6463CTO/6463CTO Jul 29 18:27:57 localhost kernel: EIP: 0060:[] EFLAGS: 00010287 CPU: 1 Jul 29 18:27:57 localhost kernel: EIP is at exit_creds+0xc/0x54 Jul 29 18:27:57 localhost kernel: EAX: 00000000 EBX: f0e1a430 ECX: f0e1a960 EDX: 00000000 Jul 29 18:27:57 localhost kernel: ESI: c410434c EDI: f0e1a960 EBP: f3321f38 ESP: f3321f34 Jul 29 18:27:57 localhost kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 preempt:00000000 Jul 29 18:27:57 localhost kernel: Process sirq-rcu/1 (pid: 6956, ti=f3320000 task=f2b92d30 task.ti=f3320000) Jul 29 18:27:57 localhost kernel: Stack: Jul 29 18:27:57 localhost kernel: f0e1a430 f3321f44 c043e974 c4104334 f3321f4c c043e9b4 f3321f70 c048507b Jul 29 18:27:57 localhost kernel: <0> 00000000 00000000 c099bbc0 00000283 c4103fdc c0a5cfec 00000200 f3321f78 Jul 29 18:27:57 localhost kernel: <0> c0485192 f3321fa4 c044445e c0a5cfec f2b92d30 fffffdff 00000001 00000000 Jul 29 18:27:57 localhost kernel: Call Trace: Jul 29 18:27:57 localhost kernel: [] ? __put_task_struct +0x54/0x87 Jul 29 18:27:57 localhost kernel: [] ? __put_task_struct_cb +0xd/0xf Jul 29 18:27:57 localhost kernel: [] ? __rcu_process_callbacks +0x153/0x21a Jul 29 18:27:57 localhost kernel: [] ? rcu_process_callbacks +0x50/0x57 Jul 29 18:27:57 localhost kernel: [] ? run_ksoftirqd +0x138/0x236 Jul 29 18:27:57 localhost kernel: [] ? run_ksoftirqd+0x0/0x236 Jul 29 18:27:57 localhost kernel: [] ? kthread+0x5f/0x64 Jul 29 18:27:57 localhost kernel: [] ? kthread+0x0/0x64 Jul 29 18:27:57 localhost kernel: [] ? kernel_thread_helper +0x6/0x10 Jul 29 18:27:57 localhost kernel: Code: 00 00 00 89 f8 e8 cb d7 1d 00 89 f0 e8 bc fd ff ff 89 f0 e8 b5 fd ff ff 31 c0 5b 5e 5f 5d c3 55 89 e5 53 89 c3 8b 80 0c 03 00 00 <8b> 00 8b 83 08 03 00 00 c7 83 08 03 00 00 00 00 00 00 e8 8b fd Jul 29 18:27:57 localhost kernel: EIP: [] exit_creds+0xc/0x54 SS:ESP 0068:f3321f34 Jul 29 18:27:57 localhost kernel: CR2: 0000000000000000 Jul 29 18:27:57 localhost kernel: ---[ end trace ebf66505b4c2cac5 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/