Every so often (particularly when dealing with roaming between access points it seems) NetworkManager activity seems to induce a fairly regular general protection fault in the current (as of 10/23) set of packages in Intrepid.
$ uname -r
2.6.27-7-generic
Excerpt from dmesg (don't have a complete one at this second):
[ 2131.272599] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 2131.340151] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 2131.351058] general protection fault: 0000 [1] SMP
[ 2131.351062] CPU 1
[ 2131.351063] Modules linked in: aes_x86_64 aes_generic af_packet binfmt_misc rfcomm bnep sco l2cap ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp bridge stp kvm_intel kvm ppdev tun ipv6 acpi_cpufreq cpufreq_ondemand cpufreq_conservative cpufreq_powersave cpufreq_stats freq_table cpufreq_userspace container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport joydev pcmcia thinkpad_acpi snd_hda_intel arc4 evdev nvram ecb snd_pcm_oss dm_multipath psmouse snd_mixer_oss crypto_blkcipher yenta_socket scsi_dh serio_raw snd_pcm pcspkr rsrc_nonstatic sdhci_pci sdhci ricoh_mmc pcmcia_core snd_seq_dummy mmc_core iTCO_wdt iTCO_vendor_support snd_seq_oss iwlagn iwlcore snd_seq_midi rfkill snd_rawmidi snd_seq_midi_event snd_seq led_class snd_timer snd_seq_device mac80211 snd btusb cfg80211 soundcore snd_page_alloc battery bluetooth ac nvidia(P) i2c_core video output wmi button shpchp pci_hotplug intel_agp ext3 jbd mbcache sr_mod cdrom sd_mod crc_t10dif sg ata_piix pata_acpi ahci ata_generic libata ohci1394 scsi_mod ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse
[ 2131.351138] Pid: 5813, comm: NetworkManager Tainted: P 2.6.27-7-generic #1
[ 2131.351139] RIP: 0010:[<ffffffffa0a90360>] [<ffffffffa0a90360>] iwl_eeprom_query16+0x10/0x20 [iwlcore]
[ 2131.351152] RSP: 0018:ffff8800740b7738 EFLAGS: 00010046
[ 2131.351153] RAX: 7fff8800375a0400 RBX: ffff88007b401a00 RCX: 00000000800300f0
[ 2131.351155] RDX: ffffc2000035803c RSI: 0000000000000090 RDI: ffff88007b401a00
[ 2131.351157] RBP: ffff8800740b7738 R08: 0000000000000001 R09: ffff8800740b770c
[ 2131.351158] R10: 0000000000000000 R11: ffff8800740b76f8 R12: ffff88007b402448
[ 2131.351160] R13: 0000000000000246 R14: ffff88007b402b50 R15: ffff88007b400060
[ 2131.351162] FS: 00007fefa9f72730(0000) GS:ffff88007e802880(0000) knlGS:0000000000000000
[ 2131.351164] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.351166] CR2: 00007fcf815a5d70 CR3: 0000000074086000 CR4: 00000000000026a0
[ 2131.351167] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.351169] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 2131.351171] Process NetworkManager (pid: 5813, threadinfo ffff8800740b6000, task ffff88007c5b0000)
[ 2131.351173] Stack: ffff8800740b7778 ffffffffa0ab40ab ffffffff805025e8 0000000000000246
[ 2131.351177] 43ff88007b401a00 0000000000000246 ffff88007b401a00 ffff88007b402448
[ 2131.351180] ffff8800740b77a8 ffffffffa0a8edbb 0000000000000000 ffff88007b401a00
[ 2131.351183] Call Trace:
[ 2131.351192] [<ffffffffa0ab40ab>] iwl4965_nic_config+0x7b/0x150 [iwlagn]
[ 2131.351200] [<ffffffff805025e8>] ? _spin_unlock_irqrestore+0x18/0x30
[ 2131.351207] [<ffffffffa0a8edbb>] iwl_hw_nic_init+0x9b/0x160 [iwlcore]
[ 2131.351213] [<ffffffffa0aade3a>] __iwl4965_up+0xba/0x2d0 [iwlagn]
[ 2131.351218] [<ffffffffa0aae544>] iwl4965_mac_start+0xe4/0x350 [iwlagn]
[ 2131.351222] [<ffffffff80485c78>] ? __nla_reserve+0x58/0x70
[ 2131.351233] [<ffffffffa0a0e6a2>] ieee80211_open+0x152/0x690 [mac80211]
[ 2131.351237] [<ffffffff8045c2bd>] ? skb_put+0xd/0xa0
[ 2131.351240] [<ffffffff80466b42>] dev_open+0xb2/0xf0
[ 2131.351242] [<ffffffff8046620b>] dev_change_flags+0x9b/0x1e0
[ 2131.351245] [<ffffffff80470574>] do_setlink+0x214/0x3b0
[ 2131.351247] [<ffffffff8046fd96>] ? rtnl_fill_ifinfo+0x2f6/0x420
[ 2131.351249] [<ffffffff8048609b>] ? nla_parse+0x3b/0x110
[ 2131.351251] [<ffffffff80470825>] rtnl_setlink+0x115/0x160
[ 2131.351255] [<ffffffff80234059>] ? __phys_addr+0x9/0x50
[ 2131.351257] [<ffffffff8046f7ee>] rtnetlink_rcv_msg+0x18e/0x240
[ 2131.351259] [<ffffffff8046f660>] ? rtnetlink_rcv_msg+0x0/0x240
[ 2131.351261] [<ffffffff804845c9>] netlink_rcv_skb+0x89/0xb0
[ 2131.351263] [<ffffffff8046f64c>] rtnetlink_rcv+0x2c/0x40
[ 2131.351265] [<ffffffff804842d5>] netlink_unicast+0x2c5/0x2e0
[ 2131.351268] [<ffffffff80485594>] netlink_sendmsg+0x204/0x2f0
[ 2131.351271] [<ffffffff80383700>] ? aa_revalidate_sk+0x20/0xd0
[ 2131.351274] [<ffffffff80456cbc>] sock_sendmsg+0x10c/0x140
[ 2131.351277] [<ffffffff80267050>] ? autoremove_wake_function+0x0/0x40
[ 2131.351280] [<ffffffff804565ac>] ? move_addr_to_kernel+0x5c/0x60
[ 2131.351282] [<ffffffff8045f444>] ? verify_iovec+0x44/0xd0
[ 2131.351284] [<ffffffff80456e7e>] sys_sendmsg+0x18e/0x320
[ 2131.351287] [<ffffffff8021425e>] ? math_state_restore+0xe/0xb0
[ 2131.351290] [<ffffffff805005b4>] ? thread_return+0x37/0x3c3
[ 2131.351294] [<ffffffff8021285a>] system_call_fastpath+0x16/0x1b
[ 2131.351295]
[ 2131.351296]
[ 2131.351297] Code: 47 23 78 df 48 8b 47 18 48 8b 40 18 48 8b 00 ff 90 00 01 00 00 c9 c3 0f 1f 40 00 55 48 89 e5 e8 27 23 78 df 48 8b 87 30 23 01 00 <0f> b6 54 30 01 0f b6 04 30 c9 c1 e2 08 09 d0 c3 55 48 89 e5 41
[ 2131.351324] RIP [<ffffffffa0a90360>] iwl_eeprom_query16+0x10/0x20 [iwlcore]
[ 2131.351331] RSP <ffff8800740b7738>
[ 2131.351334] ---[ end trace cee6c435733078f4 ]---
I've also seen:
8568.851449] wlan0: deauthenticated
[ 8568.981059] mac80211-phy0: failed to remove key (0, 00:17:0f:e8:5c:e0) from hardware (-22)
[ 8568.981646] mac80211-phy0: failed to remove key (0, 00:17:0f:e4:5d:00) from hardware (-16)
[ 8568.982044] mac80211-phy0: failed to remove key (0, 00:17:0f:3a:e1:40) from hardware (-22)
[ 8568.982436] mac80211-phy0: failed to remove key (0, 00:12:7f:6f:69:f0) from hardware (-22)
[ 8568.982864] mac80211-phy0: failed to remove key (0, 00:17:0f:36:e1:60) from hardware (-22)
[ 8571.115531] iwlagn 0000:03:00.0: PCI INT A disabled
[ 8571.460561] general protection fault: 0000 [1] SMP
[ 8571.460566] CPU 0
[ 8571.460567] Modules linked in: aes_x86_64 aes_generic af_packet binfmt_misc rfcomm bnep sco l2cap ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp bridge stp kvm_intel kvm ppdev tun ipv6 acpi_cpufreq cpufreq_ondemand cpufreq_conservative cpufreq_powersave cpufreq_stats freq_table cpufreq_userspace container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport joydev snd_hda_intel arc4 ecb snd_pcm_oss crypto_blkcipher pcmcia snd_mixer_oss thinkpad_acpi iwlagn(-) iwlcore snd_pcm sdhci_pci rfkill iTCO_wdt yenta_socket rsrc_nonstatic led_class psmouse dm_multipath btusb snd_seq_dummy sdhci iTCO_vendor_support evdev mac80211 serio_raw pcmcia_core nvram mmc_core scsi_dh pcspkr bluetooth ricoh_mmc nvidia(P) snd_seq_oss cfg80211 snd_seq_midi snd_rawmidi i2c_core video battery ac output snd_seq_midi_event snd_seq wmi snd_timer snd_seq_device snd button intel_agp soundcore shpchp pci_hotplug snd_page_alloc ext3 jbd mbcache sr_mod cdrom sd_mod crc_t10dif sg ata_piix pata_acpi ohci1394 ahci ieee1394 ata_generic libata scsi_mod ehci_hcd uhci_hcd usbcore e1000e dock dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse
[ 8571.460640] Pid: 12911, comm: rmmod Tainted: P 2.6.27-7-generic #1
[ 8571.460642] RIP: 0010:[<ffffffff802e21b9>] [<ffffffff802e21b9>] kfree+0x49/0x100
[ 8571.460649] RSP: 0018:ffff88000f023d48 EFLAGS: 00010216
[ 8571.460650] RAX: 0200000001f11700 RBX: 01ffe20001f11700 RCX: 0000000000000000
[ 8571.460652] RDX: ffffe20000000000 RSI: 0000000000000246 RDI: 7fff88007c45c400
[ 8571.460654] RBP: ffff88000f023d78 R08: 0000000000000000 R09: ffff88007cc306b0
[ 8571.460656] R10: 0000000000000002 R11: ffff8800fc823fff R12: ffff88007cc21a00
[ 8571.460657] R13: 7fff88007c45c400 R14: ffff88007cc30160 R15: ffffffffa0b6ba18
[ 8571.460660] FS: 00007f72da98b6e0(0000) GS:ffffffff806e1a80(0000) knlGS:0000000000000000
[ 8571.460661] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8571.460663] CR2: 0000000001ab3e88 CR3: 000000000ed1a000 CR4: 00000000000026e0
[ 8571.460665] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8571.460667] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 8571.460669] Process rmmod (pid: 12911, threadinfo ffff88000f022000, task ffff88001c0f59c0)
[ 8571.460670] Stack: ffff88000f023d68 ffff88007cc21a00 ffff88007cc21a00 ffff88007e1e9000
[ 8571.460675] ffff88007cc30160 ffffffffa0b6ba18 ffff88000f023d98 ffffffffa0b395ed
[ 8571.460679] ffff88007cc21a00 ffff88007cc22448 ffff88000f023dc8 ffffffffa0b6226a
[ 8571.460682] Call Trace:
[ 8571.460695] [<ffffffffa0b395ed>] iwl_eeprom_free+0x1d/0x30 [iwlcore]
[ 8571.460703] [<ffffffffa0b6226a>] iwl4965_pci_remove+0x12a/0x1b4 [iwlagn]
[ 8571.460709] [<ffffffff803bbfc4>] pci_device_remove+0x34/0x70
[ 8571.460713] [<ffffffff80430222>] __device_release_driver+0xa2/0xe0
[ 8571.460716] [<ffffffff80430338>] driver_detach+0xd8/0xe0
[ 8571.460721] [<ffffffff8042f2d6>] bus_remove_driver+0x96/0xd0
[ 8571.460725] [<ffffffff804308c7>] driver_unregister+0x47/0x50
[ 8571.460730] [<ffffffff803bc32c>] pci_unregister_driver+0x3c/0xb0
[ 8571.460736] [<ffffffffa0b62139>] iwl4965_exit+0x15/0x1c [iwlagn]
[ 8571.460739] [<ffffffff8027b9a7>] sys_delete_module+0x1c7/0x2a0
[ 8571.460743] [<ffffffff803a7c88>] ? __up_write+0x68/0x140
[ 8571.460748] [<ffffffff8021285a>] system_call_fastpath+0x16/0x1b
[ 8571.460750]
[ 8571.460750]
[ 8571.460751] Code: 04 f3 ff 48 83 ff 10 49 89 fd 0f 86 85 00 00 00 e8 ad 1e f5 ff 48 c1 e8 0c 48 ba 00 00 00 00 00 e2 ff ff 48 c1 e0 06 48 8d 1c 10 <48> 8b 03 f6 c4 40 74 07 48 8b 5b 10 48 8b 03 84 c0 0f 89 87 00
[ 8571.460778] RIP [<ffffffff802e21b9>] kfree+0x49/0x100
[ 8571.460781] RSP <ffff88000f023d48>
[ 8571.460786] ---[ end trace 292fd72d1829818d ]---
$ lspci -n
00:00.0 0600: 8086:2a00 (rev 0c)
00:01.0 0604: 8086:2a01 (rev 0c)
00:19.0 0200: 8086:1049 (rev 03)
00:1a.0 0c03: 8086:2834 (rev 03)
00:1a.1 0c03: 8086:2835 (rev 03)
00:1a.7 0c03: 8086:283a (rev 03)
00:1b.0 0403: 8086:284b (rev 03)
00:1c.0 0604: 8086:283f (rev 03)
00:1c.1 0604: 8086:2841 (rev 03)
00:1c.2 0604: 8086:2843 (rev 03)
00:1c.3 0604: 8086:2845 (rev 03)
00:1c.4 0604: 8086:2847 (rev 03)
00:1d.0 0c03: 8086:2830 (rev 03)
00:1d.1 0c03: 8086:2831 (rev 03)
00:1d.2 0c03: 8086:2832 (rev 03)
00:1d.7 0c03: 8086:2836 (rev 03)
00:1e.0 0604: 8086:2448 (rev f3)
00:1f.0 0601: 8086:2811 (rev 03)
00:1f.1 0101: 8086:2850 (rev 03)
00:1f.2 0106: 8086:2829 (rev 03)
00:1f.3 0c05: 8086:283e (rev 03)
01:00.0 0300: 10de:040c (rev a1)
03:00.0 0280: 8086:4230 (rev 61)
15:00.0 0607: 1180:0476 (rev ba)
15:00.1 0c00: 1180:0832 (rev 04)
15:00.2 0805: 1180:0822 (rev 21)
15:00.3 0880: 1180:0843 (rev ff)
15:00.4 0880: 1180:0592 (rev 11)
15:00.5 0880: 1180:0852 (rev 11)
$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)
00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HBM (ICH8M-E) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation Quadro FX 570M (rev a1)
03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
15:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
15:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
15:00.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
15:00.3 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev ff)
15:00.4 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
15:00.5 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)
This is a Thinkpad T61p.
Hi jbj,
This seems like it might be a duplicate of bug 286370 which was resolved by installing linux-backports