Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757576AbZCJUi6 (ORCPT ); Tue, 10 Mar 2009 16:38:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754259AbZCJUio (ORCPT ); Tue, 10 Mar 2009 16:38:44 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:55412 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753154AbZCJUin (ORCPT ); Tue, 10 Mar 2009 16:38:43 -0400 From: Jay Vosburgh To: Thomas Backlund cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: BUG when unloading bonding on 2.6.29-rc7-git3 In-reply-to: <49B6CA4A.2040506@mandriva.org> References: <49B6CA4A.2040506@mandriva.org> Comments: In-reply-to Thomas Backlund message dated "Tue, 10 Mar 2009 22:15:06 +0200." X-Mailer: MH-E 8.0.3; nmh 1.3-RC3; GNU Emacs 22.2.1 Date: Tue, 10 Mar 2009 13:38:47 -0700 Message-ID: <28351.1236717527@death.nxdomain.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4666 Lines: 71 Thomas Backlund wrote: >Hi, >[pleace cc me on reply] > >I get this when trying to unloading the bonding module by doing: > >service network stop >modprobe -r bonding > >Oh, and I have "options ipv6 disable=1" in /etc/modprobe.conf It looks to be a failure when trying to unload ipv6. I don't see the failure when calling rmmod bonding, but if I then do rmmod ipv6, I see an identical stack. -J --- -Jay Vosburgh, IBM Linux Technology Center, fubar@us.ibm.com > >> Mar 10 21:43:33 tmb kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 >> Mar 10 21:43:33 tmb kernel: IP: [] ipv6_sysctl_net_exit+0x1b/0x60 [ipv6] >> Mar 10 21:43:33 tmb kernel: PGD 22608d067 PUD 22a813067 PMD 0 Mar 10 >> 21:43:33 tmb kernel: Oops: 0000 [#1] SMP Mar 10 21:43:33 tmb kernel: >> last sysfs file: /sys/class/net/bond0/bonding/slaves >> Mar 10 21:43:34 tmb kernel: CPU 3 Mar 10 21:43:34 tmb kernel: Modules >> linked in: af_packet ipv6(-) binfmt_misc loop xfs exportfs dm_mod floppy >> cpufreq_ondemand cpufreq_conservative cpufreq_p >> owersave acpi_cpufreq freq_table raid0 snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_s >> eq_device snd_pcm_oss iTCO_wdt sky2 skge i2c_i801 rtc_cmos iTCO_vendor_support ohci1394 i2c_core thermal snd_pcm raid1 snd_timer snd_mixer_oss ieee1394 butt >> on processor evdev sr_mod sg snd soundcore snd_page_alloc pata_marvell ata_piix ahci libata sd_mod scsi_mod crc_t10dif raid456 async_xor async_memcpy async_tx xor raid10 ext3 jbd uhci_hcd ohci_hcd ehci_hcd usbcore [last unloaded: bonding] >> Mar 10 21:43:34 tmb kernel: Pid: 5203, comm: modprobe Not tainted 2.6.29-0.rc7.3.1mdv #1 P5Q-E >> Mar 10 21:43:34 tmb kernel: RIP: 0010:[] [] ipv6_sysctl_net_exit+0x1b/0x60 [ipv6] >> Mar 10 21:43:34 tmb kernel: RSP: 0018:ffff8802238dbe68 EFLAGS: 00010282 >> Mar 10 21:43:34 tmb kernel: RAX: ffffffffa038ad50 RBX: ffffffffa03a3d20 RCX: 000000000001ffff >> Mar 10 21:43:34 tmb kernel: RDX: ffff8800a78ed000 RSI: 0000000000000086 RDI: 0000000000000000 >> Mar 10 21:43:34 tmb kernel: RBP: ffff8802238dbe88 R08: 0000000000000000 R09: 0000000000000002 >> Mar 10 21:43:34 tmb kernel: R10: ffffffff807c18a0 R11: ffff8802238dbdc8 R12: ffffffffa03a5680 >> Mar 10 21:43:34 tmb kernel: R13: 0000000000000080 R14: 0000000000000000 R15: ffff8802238dbee8 >> Mar 10 21:43:34 tmb kernel: FS: 00007f9ea27a36f0(0000) GS:ffff88022f05b580(0000) knlGS:0000000000000000 >> Mar 10 21:43:34 tmb kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >> Mar 10 21:43:34 tmb kernel: CR2: 0000000000000028 CR3: 000000022b165000 CR4: 00000000000006e0 >> Mar 10 21:43:34 tmb kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> Mar 10 21:43:34 tmb kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 >> Mar 10 21:43:34 tmb kernel: Process modprobe (pid: 5203, threadinfo ffff8802238da000, task ffff88022242c1d0) >> Mar 10 21:43:34 tmb kernel: Stack: >> Mar 10 21:43:34 tmb kernel: ffff8802238dbe88 ffffffffa03a3d20 ffffffffa03a5680 0000000000000080 >> Mar 10 21:43:34 tmb kernel: ffff8802238dbea8 ffffffff8046b83a ffff8802238dbea8 0000000000000000 >> Mar 10 21:43:34 tmb kernel: ffff8802238dbeb8 ffffffffa038ad4c ffff8802238dbec8 ffffffffa038debd >> Mar 10 21:43:34 tmb kernel: Call Trace: >> Mar 10 21:43:34 tmb kernel: [] unregister_pernet_subsys+0x2a/0x40 >> Mar 10 21:43:34 tmb kernel: [] ipv6_sysctl_unregister+0x1c/0x20 [ipv6] >> Mar 10 21:43:34 tmb kernel: [] inet6_exit+0x1d/0xf0 [ipv6] >> Mar 10 21:43:34 tmb kernel: [] sys_delete_module+0x1e9/0x2b0 >> Mar 10 21:43:34 tmb kernel: [] ? __up_write+0x68/0x140 >> Mar 10 21:43:34 tmb kernel: [] system_call_fastpath+0x16/0x1b >> Mar 10 21:43:34 tmb kernel: Code: 48 c7 c7 20 3d 3a a0 e8 c4 0a 0e e0 c9 >> c3 66 90 55 48 89 e5 48 83 ec 20 48 89 5d e8 4c 89 65 f0 4c 89 6d f8 48 >> 8b bf e8 02 00 00 <48> 8b 5f 28 4c 8b 63 20 4c 8b 6b 70 e8 c4 8b 16 e0 >> 48 89 df e8 Mar 10 21:43:34 tmb kernel: RIP [] >> ipv6_sysctl_net_exit+0x1b/0x60 [ipv6] >> Mar 10 21:43:34 tmb kernel: RSP >> Mar 10 21:43:34 tmb kernel: CR2: 0000000000000028 >> Mar 10 21:43:34 tmb kernel: ---[ end trace 08ed5752dafe6907 ]--- -- 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/