______________________________________________________________________________
With Sound Card (Creative Sound Blaster Live! 24 bit ) on the Taihu board
______________________________________________________________________________
bash-3.00# aplay
Aborted by signal Interrupt...
bash-3.00# 

bash-3.00# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: CA0106 [CA0106], device 0: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 1: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 2: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 3: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
bash-3.00#


bash-3.00# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: CA0106 [CA0106], device 0: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 1: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 2: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CA0106 [CA0106], device 3: ca0106 [CA0106]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
bash-3.00#
___________________________________________________________________________________________________
_____while playing audio files ____________________________________________________________________

bash-3.00# aplay audio1.wav
Playing WAVE 'audio1.wav' : Unsigned 8 bit, RateData machine check in kernel mode.
PLB0: BEAR= 0x3f107000 ACR=   0x00000000 BESR=  0x00c00000
PLB0 to OPB: BEAR= 0x00000000 BESR0= 0x00000000 BESR1= 0x00000000
Oops: machine check, sig: 7 [#1]
NIP: C0003730 LR: C00035BC SP: C73D3F40 REGS: c02ccf50 TRAP: 0202    Not tainted
MSR: 00029030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c7785470[1290] 'aplay' THREAD: c73d2000
Last syscall: 3
GPR00: 00000000 C73D3F40 C7785470 00004000 00000001 00000000 C72E8978 00000000
GPR08: C778578C 00000004 00029032 C73D2000 22008028 100246D4 000002AA 00000000
GPR16: 10027BEC 00001000 00000000 00000000 00000000 00300C03 10027BF0 00080000
GPR24: 30038004 1001DB24 00000000 10036220 1001D7D0 00000000 0FFE7C58 FFFFE100
Call trace:
 8000 Hz, Mono
Data machine check in kernel mode.
PLB0: BEAR= 0x3f107000 ACR=   0x00000000 BESR=  0x00800000
PLB0 to OPB: BEAR= 0x00000000 BESR0= 0x00000000 BESR1= 0x00000000
Oops: machine check, sig: 7 [#2]
NIP: C0004958 LR: C0003510 SP: C02CCE30 REGS: c02ccf50 TRAP: 0202    Not tainted
MSR: 00021030 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c7785470[1290] 'aplay' THREAD: c73d2000
Last syscall: 3
GPR00: 08000000 C02CCE30 C7785470 C02CCE40 C02CF394 00000000 3B7F4486 3B7F4486
GPR08: C02CF398 C0003510 00021032 C0004958 07785638 100246D4 000002AA 00000000
GPR16: 10027BEC 00001000 00000000 00000000 00000000 00300C03 10027BF0 C7785554
GPR24: C7785520 C77854DC C02CCEF8 C0434B10 C77854DC 00000010 C7785470 C04462E0
Fixing recursive fault but reboot is needed!
Bus error
bash-3.00#




bash-3.00# arecord 1.wav
Recording WAVE '1.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
overrun!!! (at least 0.203 ms long)
Data machine check in kernel mode.
PLB0: BEAR= 0x3f117000 ACR=   0x00000000 BESR=  0x00c00000
PLB0 to OPB: BEAR= 0x00000000 BESR0= 0x00000000 BESR1= 0x00000000
Oops: machine check, sig: 7 [#9]
NIP: C0003730 LR: C00035BC SP: C71F3F40 REGS: c02ccf50 TRAP: 0202    Not tainted
MSR: 00029030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c7dde0b0[1296] 'arecord' THREAD: c71f2000
Last syscall: 167
GPR00: 00000000 C71F3F40 C7DDE0B0 00004000 00000001 00000000 C7226958 00000000
GPR08: C7DDE3CC 00000004 00029032 C71F2000 22048028 100246D4 3001E000 0FF6FA74
GPR16: 7FBDF4E0 0FF6F868 00000002 7FBDF500 00001008 7FBDF4B0 00000000 00000000
GPR24: 00000000 00000000 30028000 00000004 00000000 7FBDF4B0 0FFE79A8 7FBDF510
Call trace:
Bus error
bash-3.00#

__________________________________________________________________________________________________
___________________________________________________________________________________________________

____________________________________________________
Without Sound Card on the Taihu board
____________________________________________________


bash-3.00# aplay
ALSA lib confmisc.c:560:(snd_determine_driver) could not open control for card 0
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_concat returned error: No such device
ALSA lib confmisc.c:955:(snd_func_refer) error evaluating name
ALSA lib conf.c:3479:(_snd_config_evaluate) function snd_func_refer returned error: No such device
ALSA lib conf.c:3948:(snd_config_expand) Evaluate error: No such device
ALSA lib pcm.c:2090:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:533: audio open error: No such device
bash-3.00#


bash-3.00# aplay -l
aplay: device_list:218: no soundcards found...
bash-3.00#
bash-3.00# arecord -l
arecord: device_list:218: no soundcards found...
bash-3.00#