Public bug reported:
After the upgrade to 12.10 while trying to pair a bluetooth headset the
following message appears on the syslog:
------------[ cut here ]------------
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433514] WARNING: at
/build/buildd/linux-3.5.0/lib/kobject.c:196 kobject_add_internal+0x204/0x220()
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433515] Hardware name: Dell System XPS
L502X
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433517] kobject_add_internal failed
for ep_83 with -EEXIST, don't try to register things with the same name in the
same directory.
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433518] Modules linked in:
snd_hda_codec_hdmi snd_hda_codec_realtek joydev pci_stub vboxpci(O)
vboxnetadp(O) vboxnetflt(O) vboxdrv(O) bbswitch(O) parport_pc ppdev bnep rfcomm
binfmt_misc arc4 btusb bluetooth dell_wmi sparse_keymap uvcvideo videobuf2_core
videodev videobuf2_vmalloc videobuf2_memops dell_laptop dcdbas coretemp
kvm_intel kvm ghash_clmulni_intel aesni_intel cryptd aes_x86_64 snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm microcode snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq psmouse iwlwifi snd_timer snd_seq_device mac80211
serio_raw cfg80211 lpc_ich snd i915 soundcore snd_page_alloc mei wmi
drm_kms_helper drm i2c_algo_bit video mac_hid lp parport r8169
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433559] Pid: 51, comm: kworker/3:1
Tainted: G W O 3.5.0-16-generic #25-Ubuntu
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433560] Call Trace:
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433564] [<ffffffff81051c4f>]
warn_slowpath_common+0x7f/0xc0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433568] [<ffffffff81051d46>]
warn_slowpath_fmt+0x46/0x50
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433571] [<ffffffff8132b1d4>]
kobject_add_internal+0x204/0x220
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433575] [<ffffffff8132b527>]
kobject_add+0x67/0xc0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433578] [<ffffffff8141ca86>]
device_add+0x106/0x6c0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433582] [<ffffffff8142b52d>] ?
pm_runtime_init+0xdd/0xf0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433585] [<ffffffff8141d05e>]
device_register+0x1e/0x30
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433589] [<ffffffff814be36e>]
usb_create_ep_devs+0x9e/0xf0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433592] [<ffffffff814b6529>]
create_intf_ep_devs+0x59/0x80
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433595] [<ffffffff814b83a6>]
usb_set_interface+0x216/0x2d0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433600] [<ffffffffa04ca9ed>]
btusb_work+0x22d/0x3e0 [btusb]
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433603] [<ffffffff810707fa>]
process_one_work+0x12a/0x420
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433608] [<ffffffffa04ca7c0>] ?
btusb_submit_isoc_urb+0x220/0x220 [btusb]
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433611] [<ffffffff8107139e>]
worker_thread+0x12e/0x2f0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433614] [<ffffffff81071270>] ?
manage_workers.isra.26+0x200/0x200
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433616] [<ffffffff81076293>]
kthread+0x93/0xa0
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433619] [<ffffffff8168a864>]
kernel_thread_helper+0x4/0x10
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433623] [<ffffffff81076200>] ?
flush_kthread_worker+0x80/0x80
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433626] [<ffffffff8168a860>] ?
gs_change+0x13/0x13
Sep 30 12:13:39 XPS-L502X kernel: [ 836.433628] ---[ end trace
67c75d83bd3d4dbb ]---
The bluetooth device pairs correctly but does not work and logs the
following messages:\
Sep 30 12:13:39 XPS-L502X bluetoothd[5665]: Operation not supported (95)
Sep 30 12:13:39 XPS-L502X pulseaudio[2481]: [pulseaudio] bluetooth-util.c:
Failed to acquire transport fd: Input/output error
Sep 30 12:13:39 XPS-L502X pulseaudio[2481]: [pulseaudio] module.c: Failed to
load module "module-bluetooth-device" (argument: "address="00:18:6B:A1:55:AC"
path="/org/bluez/5665/hci0/dev_00_18_6B_A1_55_AC""): initialization failed.
Please let me know if you need any more info or testing. This works as expected
on the same machine running 12.04.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-16.25-generic 3.5.4
Uname: Linux 3.5.0-16-generic x86_64
ApportVersion: 2.5.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gabriel 2481 F.... pulseaudio
Date: Sun Sep 30 12:14:33 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Title: Bluetooth sound card not detected
UpgradeStatus: Upgraded to quantal on 2012-09-24 (6 days ago)
dmi.bios.date: 05/29/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 04X7VP
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA11:bd05/29/2012:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn04X7VP:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L502X
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal running-unity
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https://bugs.launchpad.net/bugs/1059118
Title:
btusb kernel taint while trying to pair a bluetooth headset
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