Kernel backtrace error: IP: [<ffffffffa0b08cb6>] azx_create 0x36b/0x73d [snd_hda_intel] -> Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) 1106:3288 (rev 10) sound chip not recognized in kernel versions linux-image-2.6.34-02063401-generic_2.6.34-02063401 and above

!!################################
!!ALSA Information Script v 0.4.60
!!################################

!!Script ran on: Fri Mar 18 21:06:25 UTC 2011

!!Linux Distribution
!!------------------

Ubuntu 10.10 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 10.10"

!!DMI Information
!!---------------

Manufacturer: Foxconn
Product Name: OEM
Product Version:

!!Kernel Information
!!------------------

Kernel release: 2.6.35-27-generic
Operating System: GNU/Linux
Architecture: x86_64
Processor: unknown
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: 1.0.23
Library version: 1.0.23
Utilities version: 1.0.23

!!Loaded ALSA modules
!!-------------------

saa7134_alsa

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

ESound Daemon:
      Installed - Yes (/usr/bin/esd)
      Running - No

!!Soundcards recognised by ALSA
!!-----------------------------

 1 [SAA7134 ]: SAA7134 - SAA7134
                      saa7134[0] at 0xfd4ff000 irq 18

!!PCI Soundcards installed in the system
!!--------------------------------------

07:03.0 Multimedia controller: Philips Semiconductors SAA7134/SAA7135HL Video Broadcast Decoder (rev 01)
80:01.0 Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 10)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!--------------------------------------------------------

80:01.0 0403: 1106:3288 (rev 10)
 Subsystem: 105b:0cf5

!!Modprobe options (Sound related)
!!--------------------------------

snd-atiixp-modem: index=-2
snd-intel8x0m: index=-2
snd-via82xx-modem: index=-2
snd-usb-audio: index=-2
snd-usb-caiaq: index=-2
snd-usb-ua101: index=-2
snd-usb-us122l: index=-2
snd-usb-usx2y: index=-2
snd-cmipci: mpu_port=0x330 fm_port=0x388
snd-pcsp: index=-2
snd-usb-audio: index=-2
snd-hda-intel: model=generic

!!Loaded sound module options
!!--------------------------

!!Module: saa7134_alsa
 debug : 0
 enable : 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
 index : -2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1

!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116, 5 Mar 19 00:14 /dev/snd/controlC1
crw-rw---- 1 root audio 116, 4 Mar 19 00:18 /dev/snd/pcmC1D0c
crw-rw---- 1 root audio 116, 3 Mar 19 00:14 /dev/snd/seq
crw-rw---- 1 root audio 116, 2 Mar 19 00:14 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Mar 19 00:14 .
drwxr-xr-x 3 root root 140 Mar 19 00:14 ..
lrwxrwxrwx 1 root root 12 Mar 19 00:14 pci-0000:07:03.0 -> ../controlC1

!!Aplay/Arecord output
!!------------

APLAY

**** List of PLAYBACK Hardware Devices ****

ARECORD

**** List of CAPTURE Hardware Devices ****
card 1: SAA7134 [SAA7134], device 0: SAA7134 PCM [SAA7134 PCM]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card 1 [SAA7134]

Card hw:1 'SAA7134'/'saa7134[0] at 0xfd4ff000 irq 18'
  Mixer name : 'SAA7134 Mixer'
  Components : ''
  Controls : 6
  Simple ctrls : 3
Simple mixer control 'Line',1
  Capabilities: volume cswitch penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 20
  Front Left: 0 [0%] Capture [on]
  Front Right: 0 [0%] Capture [on]
Simple mixer control 'Line',2
  Capabilities: volume cswitch penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 20
  Front Left: 0 [0%] Capture [off]
  Front Right: 0 [0%] Capture [off]
Simple mixer control 'Video',0
  Capabilities: volume cswitch penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 20
  Front Left: 0 [0%] Capture [off]
  Front Right: 0 [0%] Capture [off]

!!Alsactl output
!!-------------

--startcollapse--
state.SAA7134 {
 control.1 {
  comment.access 'read write'
  comment.type INTEGER
  comment.count 2
  comment.range '0 - 20'
  iface MIXER
  name 'Video Volume'
  value.0 0
  value.1 0
 }
 control.2 {
  comment.access 'read write'
  comment.type INTEGER
  comment.count 2
  comment.range '0 - 20'
  iface MIXER
  name 'Line Volume'
  index 1
  value.0 0
  value.1 0
 }
 control.3 {
  comment.access 'read write'
  comment.type INTEGER
  comment.count 2
  comment.range '0 - 20'
  iface MIXER
  name 'Line Volume'
  index 2
  value.0 0
  value.1 0
 }
 control.4 {
  comment.access 'read write'
  comment.type BOOLEAN
  comment.count 2
  iface MIXER
  name 'Video Capture Switch'
  value.0 false
  value.1 false
 }
 control.5 {
  comment.access 'read write'
  comment.type BOOLEAN
  comment.count 2
  iface MIXER
  name 'Line Capture Switch'
  index 1
  value.0 true
  value.1 true
 }
 control.6 {
  comment.access 'read write'
  comment.type BOOLEAN
  comment.count 2
  iface MIXER
  name 'Line Capture Switch'
  index 2
  value.0 false
  value.1 false
 }
}
--endcollapse--

!!All Loaded Modules
!!------------------

Module
pppoe
pppox
cryptd
aes_x86_64
aes_generic
dm_crypt
binfmt_misc
snd_atiixp_modem
snd_via82xx_modem
snd_intel8x0m
snd_ac97_codec
ac97_bus
ipt_REJECT
ipt_LOG
xt_limit
xt_tcpudp
ipt_addrtype
xt_state
isl6421
tda826x
tda10086
ir_lirc_codec
lirc_dev
saa7134_dvb
videobuf_dvb
dvb_core
saa7134_alsa
snd_hda_intel
ir_sony_decoder
snd_hda_codec
snd_hwdep
nvidia
snd_pcm
snd_seq_midi
ip6table_filter
ip6_tables
nf_nat_irc
nf_conntrack_irc
nf_nat_ftp
nf_nat
nf_conntrack_ipv4
nf_defrag_ipv4
nf_conntrack_ftp
ir_jvc_decoder
rc_flydvb
nf_conntrack
iptable_filter
snd_rawmidi
snd_seq_midi_event
ir_rc6_decoder
snd_seq
ip_tables
saa7134
ir_rc5_decoder
x_tables
snd_timer
ppdev
snd_seq_device
v4l2_common
videobuf_dma_sg
gspca_zc3xx
ir_nec_decoder
videobuf_core
gspca_main
snd
psmouse
videodev
ir_common
ir_core
v4l1_compat
parport_pc
usblp
v4l2_compat_ioctl32
serio_raw
joydev
soundcore
edac_core
tveeprom
snd_page_alloc
k8temp
edac_mce_amd
i2c_viapro
shpchp
lp
parport
usbhid
hid
8139too
8139cp
usb_storage
mii
floppy
sata_via
pata_via

!!ALSA/HDA dmesg
!!------------------

[ 7.202866] alloc kstat_irqs on node 0
[ 7.202875] HDA Intel 0000:80:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 7.202932] HDA Intel 0000:80:01.0: setting latency timer to 64
[ 7.202941] BUG: unable to handle kernel paging request at ffffc90011948000
[ 7.202946] IP: [<ffffffffa0b08cb6>] azx_create 0x36b/0x73d [snd_hda_intel]
[ 7.202955] PGD 7f810067 PUD 7f811067 PMD 37001067 PTE 800000fd00000173
--
[ 7.202966] CPU 0
[ 7.202967] Modules linked in: saa7134_alsa( ) snd_hda_intel( ) ir_sony_decoder snd_hda_codec snd_hwdep nvidia(P ) snd_pcm snd_seq_midi ip6table_filter ip6_tables nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp ir_jvc_decoder rc_flydvb nf_conntrack iptable_filter snd_rawmidi snd_seq_midi_event ir_rc6_decoder snd_seq ip_tables saa7134 ir_rc5_decoder x_tables snd_timer ppdev snd_seq_device v4l2_common videobuf_dma_sg gspca_zc3xx( ) ir_nec_decoder videobuf_core gspca_main snd psmouse videodev ir_common ir_core v4l1_compat parport_pc usblp v4l2_compat_ioctl32 serio_raw joydev soundcore edac_core tveeprom snd_page_alloc k8temp edac_mce_amd i2c_viapro shpchp lp parport usbhid hid 8139too 8139cp usb_storage mii floppy sata_via pata_via
[ 7.203014]
[ 7.203018] Pid: 1015, comm: work_for_cpu Tainted: P 2.6.35-27-generic #48-Ubuntu K8T890-8237A/OEM
[ 7.203020] RIP: 0010:[<ffffffffa0b08cb6>] [<ffffffffa0b08cb6>] azx_create 0x36b/0x73d [snd_hda_intel]
[ 7.203027] RSP: 0018:ffff88007c16fe20 EFLAGS: 00010282
--
[ 7.203068] Call Trace:
[ 7.203075] [<ffffffffa0b09140>] azx_probe 0xb8/0x284 [snd_hda_intel]
[ 7.203082] [<ffffffff8107b1b0>] ? do_work_for_cpu 0x0/0x30
--
[ 7.203105] Code: ef 31 f6 4c 89 ef 89 4d c0 e8 d7 d4 ff ff 85 c0 0f 88 c3 03 00 00 4c 89 e7 e8 47 c9 7c e0 41 8b 7d 40 e8 4e 26 5c e0 49 8b 45 38 <66> 44 8b 30 41 8b 45 14 8b 4d c0 8d 50 fd 83 fa 01 77 3f 31 d2
[ 7.203135] RIP [<ffffffffa0b08cb6>] azx_create 0x36b/0x73d [snd_hda_intel]
[ 7.203140] RSP <ffff88007c16fe20>
--
[ 7.203145] ---[ end trace b18174bcde712c60 ]---
[ 7.211929] saa7134 ALSA driver for DMA sound loaded
[ 7.211969] saa7134[0]/alsa: saa7134[0] at 0xfd4ff000 irq 18 registered as card -2