*** This bug is a duplicate of bug 922906 ***
https://bugs.launchpad.net/bugs/922906
Hope this helps?
Apr 17 04:23:00 GlukPC kernel: [ 31.063322] Bluetooth: RFCOMM TTY layer
initialized
Apr 17 04:23:00 GlukPC kernel: [ 31.063330] Bluetooth: RFCOMM socket layer
initialized
Apr 17 04:23:00 GlukPC kernel: [ 31.063332] Bluetooth: RFCOMM ver 1.11
Apr 17 04:23:03 GlukPC kernel: [ 34.021626] Bluetooth: HIDP (Human Interface
Emulation) ver 1.2
Apr 17 04:23:03 GlukPC kernel: [ 34.022368] BUG: unable to handle kernel NULL
pointer dereference at (null)
Apr 17 04:23:03 GlukPC kernel: [ 34.022415] IP: [<ffffffff8103fe69>]
__ticket_spin_lock+0x9/0x30
Apr 17 04:23:03 GlukPC kernel: [ 34.022460] PGD 0
Apr 17 04:23:03 GlukPC kernel: [ 34.022476] Oops: 0002 [#1] SMP
Apr 17 04:23:03 GlukPC kernel: [ 34.022505] CPU 0
Apr 17 04:23:03 GlukPC kernel: [ 34.022517] Modules linked in: hidp hid
rfcomm bnep parport_pc dm_crypt ppdev snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi mmc_block
snd_seq_midi_event joydev arc4 pcmcia b43 snd_seq snd_timer snd_seq_device
tifm_sd snd yenta_socket btusb pcmcia_rsrc uvcvideo videobuf2_core videodev
coretemp tifm_7xx1 tifm_core bluetooth soundcore pcmcia_core snd_page_alloc
mac_hid acer_wmi mac80211 cfg80211 psmouse bcma sparse_keymap microcode
videobuf2_vmalloc videobuf2_memops serio_raw lp parport i915 drm_kms_helper wmi
drm i2c_algo_bit video sky2 ssb
Apr 17 04:23:03 GlukPC kernel: [ 34.022882]
Apr 17 04:23:03 GlukPC kernel: [ 34.022893] Pid: 1291, comm: khidpd_04580058
Not tainted 3.4.0-030400rc3-generic #201204152235 Acer, inc. Aspire 5570
/Prespa1
Apr 17 04:23:03 GlukPC kernel: [ 34.022957] RIP: 0010:[<ffffffff8103fe69>]
[<ffffffff8103fe69>] __ticket_spin_lock+0x9/0x30
Apr 17 04:23:03 GlukPC kernel: [ 34.022999] RSP: 0018:ffff88009e7bbd80
EFLAGS: 00010086
Apr 17 04:23:03 GlukPC kernel: [ 34.023025] RAX: 0000000000010000 RBX:
0000000000000286 RCX: ffff8800b7707a50
Apr 17 04:23:03 GlukPC kernel: [ 34.023058] RDX: ffff88009e7016e0 RSI:
0000000000000286 RDI: 0000000000000000
Apr 17 04:23:03 GlukPC kernel: [ 34.023091] RBP: ffff88009e7bbd80 R08:
ffff88009e7ba000 R09: 0000000000000000
Apr 17 04:23:03 GlukPC kernel: [ 34.023124] R10: 0000000000000000 R11:
0000000000000001 R12: ffff88009e7bbe50
Apr 17 04:23:03 GlukPC kernel: [ 34.023157] R13: ffff8800b7707ae8 R14:
ffff8800b7707ad0 R15: ffff8800b5c44070
Apr 17 04:23:03 GlukPC kernel: [ 34.023190] FS: 0000000000000000(0000)
GS:ffff8800bf400000(0000) knlGS:0000000000000000
Apr 17 04:23:03 GlukPC kernel: [ 34.023228] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Apr 17 04:23:03 GlukPC kernel: [ 34.023255] CR2: 0000000000000000 CR3:
000000009e47f000 CR4: 00000000000007f0
Apr 17 04:23:03 GlukPC kernel: [ 34.023288] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Apr 17 04:23:03 GlukPC kernel: [ 34.023320] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Apr 17 04:23:03 GlukPC kernel: [ 34.023353] Process khidpd_04580058 (pid:
1291, threadinfo ffff88009e7ba000, task ffff88009e7016e0)
Apr 17 04:23:03 GlukPC kernel: [ 34.023393] Stack:
Apr 17 04:23:03 GlukPC kernel: [ 34.023405] ffff88009e7bbd90
ffffffff8103ff19 ffff88009e7bbdb0 ffffffff8166aacf
Apr 17 04:23:03 GlukPC kernel: [ 34.023447] 0000000000000000
ffff88009e7bbe50 ffff88009e7bbdd0 ffffffff81076c11
Apr 17 04:23:03 GlukPC kernel: [ 34.023489] 0000000000000000
ffff8800b7707a00 ffff88009e7bbee0 ffffffffa0442188
Apr 17 04:23:03 GlukPC kernel: [ 34.023530] Call Trace:
Apr 17 04:23:03 GlukPC kernel: [ 34.023545] [<ffffffff8103ff19>]
default_spin_lock_flags+0x9/0x10
Apr 17 04:23:03 GlukPC kernel: [ 34.023579] [<ffffffff8166aacf>]
_raw_spin_lock_irqsave+0x2f/0x40
Apr 17 04:23:03 GlukPC kernel: [ 34.023611] [<ffffffff81076c11>]
remove_wait_queue+0x21/0x70
Apr 17 04:23:03 GlukPC kernel: [ 34.023641] [<ffffffffa0442188>]
hidp_session+0x348/0x640 [hidp]
Apr 17 04:23:03 GlukPC kernel: [ 34.023670] [<ffffffff816696f1>] ?
__schedule+0x3f1/0x710
Apr 17 04:23:03 GlukPC kernel: [ 34.023699] [<ffffffff81086d90>] ?
try_to_wake_up+0x2d0/0x2d0
Apr 17 04:23:03 GlukPC kernel: [ 34.023729] [<ffffffff81086d90>] ?
try_to_wake_up+0x2d0/0x2d0
Apr 17 04:23:03 GlukPC kernel: [ 34.023759] [<ffffffffa0441e40>] ?
hidp_send_frame+0x50/0x50 [hidp]
Apr 17 04:23:03 GlukPC kernel: [ 34.023791] [<ffffffff8107639e>]
kthread+0x9e/0xb0
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] [<ffffffff81674464>]
kernel_thread_helper+0x4/0x10
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] [<ffffffff81076300>] ?
kthread_freezable_should_stop+0x70/0x70
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] [<ffffffff81674460>] ?
gs_change+0x13/0x13
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] Code: 00 00 48 c7 c2 6e fc 03 81
48 c7 c1 71 fc 03 81 e9 dd fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55
b8 00 00 01 00 48 89 e5 <f0> 0f c1 07 89 c2 c1 ea 10 66 39 c2 74 13 66 0f 1f 84
00 00 00
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] RIP [<ffffffff8103fe69>]
__ticket_spin_lock+0x9/0x30
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] RSP <ffff88009e7bbd80>
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] CR2: 0000000000000000
Apr 17 04:23:03 GlukPC kernel: [ 34.024955] ---[ end trace 16fc3b3a625076da
]---
Apr 17 04:23:18 GlukPC kernel: [ 49.361740] ------------[ cut here
]------------
Apr 17 04:23:18 GlukPC kernel: [ 49.361757] WARNING: at
/home/apw/COD/linux/fs/sysfs/dir.c:508 sysfs_add_one+0xc1/0xf0()
Apr 17 04:23:18 GlukPC kernel: [ 49.361763] Hardware name: Aspire 5570
Apr 17 04:23:18 GlukPC kernel: [ 49.361767] sysfs: cannot create duplicate
filename
'/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.0/bluetooth/hci0/hci0:11'
Apr 17 04:23:18 GlukPC kernel: [ 49.361773] Modules linked in: hidp hid
rfcomm bnep parport_pc dm_crypt ppdev snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi mmc_block
snd_seq_midi_event joydev arc4 pcmcia b43 snd_seq snd_timer snd_seq_device
tifm_sd snd yenta_socket btusb pcmcia_rsrc uvcvideo videobuf2_core videodev
coretemp tifm_7xx1 tifm_core bluetooth soundcore pcmcia_core snd_page_alloc
mac_hid acer_wmi mac80211 cfg80211 psmouse bcma sparse_keymap microcode
videobuf2_vmalloc videobuf2_memops serio_raw lp parport i915 drm_kms_helper wmi
drm i2c_algo_bit video sky2 ssb
Apr 17 04:23:18 GlukPC kernel: [ 49.361888] Pid: 45, comm: kworker/u:2
Tainted: G D 3.4.0-030400rc3-generic #201204152235
Apr 17 04:23:18 GlukPC kernel: [ 49.361893] Call Trace:
Apr 17 04:23:18 GlukPC kernel: [ 49.361907] [<ffffffff81052caf>]
warn_slowpath_common+0x7f/0xc0
Apr 17 04:23:18 GlukPC kernel: [ 49.361915] [<ffffffff81052da6>]
warn_slowpath_fmt+0x46/0x50
Apr 17 04:23:18 GlukPC kernel: [ 49.361923] [<ffffffff811f62a1>]
sysfs_add_one+0xc1/0xf0
Apr 17 04:23:18 GlukPC kernel: [ 49.361930] [<ffffffff811f6352>]
create_dir+0x82/0xe0
Apr 17 04:23:18 GlukPC kernel: [ 49.361937] [<ffffffff811f643c>]
sysfs_create_dir+0x8c/0xe0
Apr 17 04:23:18 GlukPC kernel: [ 49.361950] [<ffffffff8131e65f>]
kobject_add_internal+0xbf/0x230
Apr 17 04:23:18 GlukPC kernel: [ 49.361957] [<ffffffff8131e998>]
kobject_add_varg+0x38/0x60
Apr 17 04:23:18 GlukPC kernel: [ 49.361965] [<ffffffff8131ea74>]
kobject_add+0x44/0x70
Apr 17 04:23:18 GlukPC kernel: [ 49.361974] [<ffffffff8140c890>]
device_add+0xd0/0x520
Apr 17 04:23:18 GlukPC kernel: [ 49.362005] [<ffffffffa019a0b6>]
hci_conn_add_sysfs+0x46/0x80 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362013] [<ffffffffa01908a7>]
hci_event_packet+0x1d17/0x2a50 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362019] [<ffffffff8155788b>] ?
__alloc_skb+0x4b/0x170
Apr 17 04:23:18 GlukPC kernel: [ 49.362025] [<ffffffff81086da2>] ?
default_wake_function+0x12/0x20
Apr 17 04:23:18 GlukPC kernel: [ 49.362028] [<ffffffff81086d90>] ?
try_to_wake_up+0x2d0/0x2d0
Apr 17 04:23:18 GlukPC kernel: [ 49.362033] [<ffffffff8107f119>] ?
__wake_up_common+0x59/0x90
Apr 17 04:23:18 GlukPC kernel: [ 49.362038] [<ffffffff8108235e>] ?
__wake_up_sync_key+0x5e/0x80
Apr 17 04:23:18 GlukPC kernel: [ 49.362044] [<ffffffff8116e640>] ?
kmem_cache_free+0x20/0xf0
Apr 17 04:23:18 GlukPC kernel: [ 49.362052] [<ffffffffa0198b6f>] ?
hci_send_to_sock+0xff/0x1d0 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362056] [<ffffffff815583d7>] ?
__kfree_skb+0x47/0xa0
Apr 17 04:23:18 GlukPC kernel: [ 49.362060] [<ffffffff81557f2b>] ?
kfree_skb+0x3b/0x90
Apr 17 04:23:18 GlukPC kernel: [ 49.362068] [<ffffffffa0198b6f>] ?
hci_send_to_sock+0xff/0x1d0 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362075] [<ffffffffa01877b3>]
hci_rx_work+0x253/0x2d0 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362080] [<ffffffff81085653>] ?
finish_task_switch+0x53/0x100
Apr 17 04:23:18 GlukPC kernel: [ 49.362085] [<ffffffff816696f1>] ?
__schedule+0x3f1/0x710
Apr 17 04:23:18 GlukPC kernel: [ 49.362092] [<ffffffffa0187560>] ?
hci_req_complete+0xc0/0xc0 [bluetooth]
Apr 17 04:23:18 GlukPC kernel: [ 49.362098] [<ffffffff8106ecdb>]
process_one_work+0x12b/0x470
Apr 17 04:23:18 GlukPC kernel: [ 49.362102] [<ffffffff81071846>]
worker_thread+0x176/0x420
Apr 17 04:23:18 GlukPC kernel: [ 49.362105] [<ffffffff810716d0>] ?
manage_workers+0x120/0x120
Apr 17 04:23:18 GlukPC kernel: [ 49.362109] [<ffffffff8107639e>]
kthread+0x9e/0xb0
Apr 17 04:23:18 GlukPC kernel: [ 49.362115] [<ffffffff81674464>]
kernel_thread_helper+0x4/0x10
Apr 17 04:23:18 GlukPC kernel: [ 49.362119] [<ffffffff81076300>] ?
kthread_freezable_should_stop+0x70/0x70
Apr 17 04:23:18 GlukPC kernel: [ 49.362122] [<ffffffff81674460>] ?
gs_change+0x13/0x13
Apr 17 04:23:18 GlukPC kernel: [ 49.362125] ---[ end trace 16fc3b3a625076db
]---
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https://bugs.launchpad.net/bugs/978283
Title:
Wen I search and connect bluetooth devices
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