[pulseaudio-discuss] Failed to drain stream: Timeout

D K dspgro at gmail.com
Tue Jun 4 15:24:43 PDT 2013

I am getting following error when i try to to paplay

# paplay /usr/share/sounds/alsa/Front_Center.wav
Failed to drain stream: Timeout

Here PA is connected to alsa-driver for playback of sound.
I am not sure about the problem here any pointers would be helpful.


The detailed log is below.

I: [pulseaudio] protocol-native.c: Got crede[  421.525807] audio  ]
1154_dai_hw_params is completed.
ntials: uid=0 gid=0 success=1
D: [pulseaudio] p[  421.534996] audio  ] 1154_pcm_hw_params is completed.
rotocol-native.c: SHM possible: yes
D: [pulseau[  421.545005] audio  ] 1154_pcm_prepare is
dio] protocol-native.c: Negotiated SHM: yes
I: [  421.558994] audio  ] 1154_pcm_prepare is
[pulseaudio] sink-input.c: Trying to change sample rate
I: [pulseaudio] alsa-sink.c: Updating rate for device d[  421.578020] BUG:
scheduling while atomic: alsa-sink/4669/0x00000003
[  421.585948] Modules linked in: tntfs(PO) venc_hxenc(PO) vdec_vdu(PO)
dc_gm(O) pvrsrvkm(O) kdrv_lg115x(O) logfunnel(O) hma(O)
[  421.597232] [<800197b8>] (unwind_backtrace+0x0/0xf8) from [<8043458c>]
[  421.605933] [<8043458c>] (__schedule+0x49c/0x4fc) from [<80432d70>]
[  421.614901] [<80432d70>] (schedule_timeout+0x138/0x1c8) from
[<8002d5a8>] (msleep_interruptible+0x34/0x44)
[  421.625106] [<8002d5a8>] (msleep_interruptible+0x34/0x44) from
[<7f050da8>] (1154_pcm_trigger+0x74/0xf4 [kdrv_lg115x])
[  421.636319] [<7f050da8>] (1154_pcm_trigger+0x74/0xf4 [kdrv_lg115x]) from
[<8035bee8>] (soc_pcm_trigger+0x64/0xa0)
[  421.646761] [<8035bee8>] (soc_pcm_trigger+0x64/0xa0) from [<803339f0>]
[  421.655806] [<803339f0>] (snd_pcm_do_start+0x2c/0x30) from [<80333698>]
[  421.665372] [<80333698>] (snd_pcm_action_single+0x38/0x78) from
[<80338bb0>] (snd_pcm_lib_write1+0x2c8/0x314)
[  421.675284] [<80338bb0>] (snd_pcm_lib_write1+0x2c8/0x314) from
[<80338ca4>] (snd_pcm_lib_write+0x50/0x5c)
[  421.684849] [<80338ca4>] (snd_pcm_lib_write+0x50/0x5c) from [<80335630>]
[  421.694853] [<80335630>] (snd_pcm_playback_ioctl1+0x1a0/0x3e0) from
[<800bc9d0>] (vfs_ioctl+0x30/0x70)
[  421.704157] [<800bc9d0>] (vfs_ioctl+0x30/0x70) from [<800bcb70>]
[  421.712418] [<800bcb70>] (do_vfs_ioctl+0x68/0x524) from [<800bd064>]
[  421.720688] [<800bd064>] (sys_ioctl+0x38/0x5c) from [<800135c0>]
efault, new rate is 48000
I: [p[  421.730381] audio  ] 1154_pcm_trigger is completed(cmd:1).
ulseaudio] sink.c: Changed sampl[  421.737677] audio  ] 1154_dai_trigger is
ing rate successfully
I: [pulseaudio] sink-input.c: Rate changed to 48000 Hz
D: [pulseaudio] sink.c: Suspend cause of sink alsa_output.default is
0x0000, resuming
I: [alsa-sink] alsa-sink.c: Trying resume...
D: [alsa-sink] alsa-util.c: Maximum hw buffer size is 170 ms
D: [alsa-sink] alsa-util.c: Set buffer size first (to 8192 samples), period
size second (to 1024 samples).
D: [alsa-sink] alsa-sink.c: hwbuf_unused=0
D: [alsa-sink] alsa-sink.c: setting avail_min=1
I: [alsa-sink] alsa-sink.c: Resumed successfully...
D: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.default becomes
idle, timeout in 5 seconds.
I: [alsa-sink] alsa-sink.c: Starting playback.
I: [alsa-sink] pcm_hw.c: SNDRV_PCM_IOCTL_START failed (-77)
D: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.default becomes
I: [pulseaudio] resampler.c: Forcing resampler 'copy', because of fixed,
identical sample rates.
D: [pulseaudio] resampler.c: Channel matrix:
D: [pulseaudio] resampler.c:        I00
D: [pulseaudio] resampler.c:     +------
D: [pulseaudio] resampler.c: O00 | 1.000
D: [pulseaudio] resampler.c: O01 | 1.000
I: [pulseaudio] remap.c: Using mono to stereo remapping
I: [pulseaudio] resampler.c: Using resampler 'copy'
I: [pulseaudio] resampler.c: Using s16le as working format.
D: [pulseaudio] memblockq.c: memblockq requested: maxlength=33554432,
tlength=0, base=4, prebuf=0, minreq=1 maxrewind=0
D: [pulseaudio] memblockq.c: memblockq sanitized: maxlength=33554432,
tlength=33554432, base=4, prebuf=0, minreq=4 maxrewind=0
I: [pulseaudio] sink-input.c: Created input 0
"/usr/share/sounds/alsa/Front_Center.wav" on alsa_output.default with
sample spec s16le 1ch 48000Hz and channel map mono
I: [pulseaudio] sink-input.c:     media.format = "WAV (Microsoft)"
I: [pulseaudio] sink-input.c:     application.name = "paplay"
I: [pulseaudio] sink-input.c:     media.name =
I: [pulseaudio] sink-input.c:     native-protocol.peer = "UNIX socket
I: [pulseaudio] sink-input.c:     native-protocol.version = "26"
I: [pulseaudio] sink-input.c:     application.process.id = "4735"
I: [pulseaudio] sink-input.c:     application.process.user = "root"
I: [pulseaudio] sink-input.c:     application.process.host =
I: [pulseaudio] sink-input.c:     application.process.binary = "pacat"
I: [pulseaudio] sink-input.c:     application.language = "C"
I: [pulseaudio] sink-input.c:     application.process.machine_id =
I: [pulseaudio] sink-input.c:     module-stream-restore.id =
I: [pulseaudio] protocol-native.c: Requested tlength=2000.00 ms,
minreq=20.00 ms
D: [pulseaudio] protocol-native.c: Traditional mode enabled, modifying sink
usec only for compat with minreq.
D: [pulseaudio] protocol-native.c: Requested latency=1960.00 ms, Received
latency=185.76 ms
D: [pulseaudio] memblockq.c: memblockq requested: maxlength=4194304,
tlength=192000, base=2, prebuf=190082, minreq=1920 maxrewind=0
D: [pulseaudio] memblockq.c: memblockq sanitized: maxlength=4194304,
tlength=192000, base=2, prebuf=190082, minreq=1920 maxrewind=0
I: [pulseaudio] protocol-native.c: Final latency 2185.76 ms = 1960.00 ms +
2*20.00 ms + 185.76 ms
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change
D: [alsa-sink] protocol-native.c: Requesting rewind due to end of underrun.
D: [alsa-sink] sink-input.c: Do not do any rewind requests, seems to cause
loss of audio samples
D: [alsa-sink] alsa-sink.c: Requested to rewind 32768 bytes.
D: [alsa-sink] alsa-sink.c: Limited to 30976 bytes.
D: [alsa-sink] alsa-sink.c: before: 7744
D: [alsa-sink] alsa-sink.c: after: 7744
D: [alsa-sink] alsa-sink.c: Rewound 30976 bytes.
D: [alsa-sink] sink.c: Processing rewind...
D: [alsa-sink] source.c: Processing rewind...
D: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.default becomes
idle, timeout in 5 seconds.
D: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.default becomes
idle, timeout in 5 seconds.
D: [pulseaudio] core.c: Hmm, no streams around, trying to vacuum.
I: [pulseaudio] sink-input.c: Freeing input 0
I: [pulseaudio] client.c: Freed 0 "paplay"
I: [pulseaudio] protocol-native.c: Connection died.
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