Comment 49 for bug 283759

Today I also had an oops thrown in for good measure after having used the system just fine for a number of hours.

Mar 26 20:42:13 dolores kernel: [16405.704602] ------------[ cut here ]------------
Mar 26 20:42:13 dolores kernel: [16405.704605] WARNING: at /build/buildd/linux-2.6.28/fs/sysfs/group.c:138 sysfs_remove_group+0xd9/0xe0()
Mar 26 20:42:13 dolores kernel: [16405.704608] sysfs group ffffffff80904c80 not found for kobject 'wlan0'
Mar 26 20:42:13 dolores kernel: [16405.704610] Modules linked in: binfmt_misc ppdev bnep vboxnetflt vboxdrv bridge stp kvm_intel kvm video output xfs dm_crypt vhba coretemp it87 hwmon_vid sbp2 lp parport arc4 ecb snd_hda_intel tda18271 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi tda8290 snd_seq_midi_event snd_seq tda10048 snd_timer rt73usb crc_itu_t snd_seq_device rt2x00usb rt2x00lib led_class input_polldev cx23885 snd lbm_cw_mac80211 cx2341x videobuf_dma_sg soundcore snd_page_alloc nvidia(P) serio_raw lirc_mceusb2 lbm_cw_cfg80211 lirc_dev videobuf_dvb dvb_core videobuf_core v4l2_common videodev v4l1_compat v4l2_compat_ioctl32 btcx_risc tveeprom usbhid usb_storage forcedeth ohci1394 ieee1394 fbcon tileblit font bitblit softcursor
Mar 26 20:42:13 dolores kernel: [16405.704677] Pid: 41, comm: khubd Tainted: P 2.6.28-11-generic #37-Ubuntu
Mar 26 20:42:13 dolores kernel: [16405.704679] Call Trace:
Mar 26 20:42:13 dolores kernel: [16405.704685] [<ffffffff80250927>] warn_slowpath+0xb7/0xf0
Mar 26 20:42:13 dolores kernel: [16405.704689] [<ffffffff802e26fc>] ? __slab_free+0xac/0x110
Mar 26 20:42:13 dolores kernel: [16405.704694] [<ffffffff802fdc6c>] ? ifind_fast+0x9c/0xa0
Mar 26 20:42:13 dolores kernel: [16405.704697] [<ffffffff802fdca6>] ? ilookup+0x36/0x50
Mar 26 20:42:13 dolores kernel: [16405.704701] [<ffffffff80348ca1>] ? release_sysfs_dirent+0x61/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704704] [<ffffffff803483dd>] ? sysfs_find_dirent+0x2d/0x40
Mar 26 20:42:13 dolores kernel: [16405.704707] [<ffffffff80349fe9>] sysfs_remove_group+0xd9/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704713] [<ffffffff804b7578>] device_remove_attrs+0x48/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704717] [<ffffffff804b7710>] device_del+0x100/0x1d0
Mar 26 20:42:13 dolores kernel: [16405.704722] [<ffffffff805c4957>] netdev_unregister_kobject+0x27/0x30
Mar 26 20:42:13 dolores kernel: [16405.704726] [<ffffffff805b51d6>] rollback_registered+0xa6/0x130
Mar 26 20:42:13 dolores kernel: [16405.704729] [<ffffffff805b527d>] unregister_netdevice+0x1d/0x70
Mar 26 20:42:13 dolores kernel: [16405.704747] [<ffffffffa0923dfc>] ieee80211_remove_interfaces+0x7c/0xb0 [lbm_cw_mac80211]
Mar 26 20:42:13 dolores kernel: [16405.704762] [<ffffffffa09170d1>] lbm_cw_ieee80211_unregister_hw+0x31/0xf0 [lbm_cw_mac80211]
Mar 26 20:42:13 dolores kernel: [16405.704770] [<ffffffffa09995a9>] rt2x00lib_remove_hw+0x89/0xa0 [rt2x00lib]
Mar 26 20:42:13 dolores kernel: [16405.704776] [<ffffffffa0999600>] rt2x00lib_remove_dev+0x40/0x60 [rt2x00lib]
Mar 26 20:42:13 dolores kernel: [16405.704783] [<ffffffffa09a60ea>] rt2x00usb_disconnect+0x2a/0x70 [rt2x00usb]
Mar 26 20:42:13 dolores kernel: [16405.704788] [<ffffffff80532f72>] usb_unbind_interface+0x62/0x150
Mar 26 20:42:13 dolores kernel: [16405.704793] [<ffffffff804b9ecd>] __device_release_driver+0x9d/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704796] [<ffffffff804ba01b>] device_release_driver+0x2b/0x40
Mar 26 20:42:13 dolores kernel: [16405.704799] [<ffffffff804b9365>] bus_remove_device+0xa5/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704803] [<ffffffff804b7718>] device_del+0x108/0x1d0
Mar 26 20:42:13 dolores kernel: [16405.704807] [<ffffffff8052fd79>] usb_disable_device+0xb9/0x140
Mar 26 20:42:13 dolores kernel: [16405.704811] [<ffffffff8052b03c>] usb_disconnect+0xbc/0x180
Mar 26 20:42:13 dolores kernel: [16405.704815] [<ffffffff8052b6de>] hub_port_connect_change+0x1be/0xab0
Mar 26 20:42:13 dolores kernel: [16405.704819] [<ffffffff8052f5a5>] ? usb_free_urb+0x15/0x20
Mar 26 20:42:13 dolores kernel: [16405.704822] [<ffffffff805307b1>] ? usb_start_wait_urb+0x91/0xe0
Mar 26 20:42:13 dolores kernel: [16405.704825] [<ffffffff80530a4f>] ? usb_control_msg+0xef/0x110
Mar 26 20:42:13 dolores kernel: [16405.704828] [<ffffffff8052c3d3>] hub_events+0x2e3/0x660
Mar 26 20:42:13 dolores kernel: [16405.704832] [<ffffffff8052c78d>] hub_thread+0x3d/0x180
Mar 26 20:42:13 dolores kernel: [16405.704837] [<ffffffff80268960>] ? autoremove_wake_function+0x0/0x40
Mar 26 20:42:13 dolores kernel: [16405.704840] [<ffffffff8052c750>] ? hub_thread+0x0/0x180
Mar 26 20:42:13 dolores kernel: [16405.704844] [<ffffffff802684f9>] kthread+0x49/0x90
Mar 26 20:42:13 dolores kernel: [16405.704848] [<ffffffff80213979>] child_rip+0xa/0x11
Mar 26 20:42:13 dolores kernel: [16405.704852] [<ffffffff802684b0>] ? kthread+0x0/0x90
Mar 26 20:42:13 dolores kernel: [16405.704855] [<ffffffff8021396f>] ? child_rip+0x0/0x11
Mar 26 20:42:13 dolores kernel: [16405.704857] ---[ end trace 5fbf3f25165a0d94 ]---

Attached is the full kern.log