Android-问题-obtainBuffer timed out (is the CPU pegged?)

日志描述：

W/SocketClient( 2263): write error (Broken pipe)
I/Vitamio[Player]( 3755): Info (901, 478)
I/Vitamio[Player]( 3755): Info (901, 522)
W/SocketClient( 2263): write error (Broken pipe)
I/Vitamio[Player]( 3755): Info (901, 483)
I/Vitamio[Player]( 3755): Info (901, 501)
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/SocketClient( 2263): write error (Broken pipe)
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/SocketClient( 2263): write error (Broken pipe)
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45
D/dalvikvm( 2555): GC_CONCURRENT freed 533K, 16% free 4976K/5876K, paused 2ms+4ms, total 36ms
W/AudioTrack( 3755): obtainBuffer timed out (is the CPU pegged?) 0x689021c0 name=0x1user=007b0954, server=007afc45


U-Boot 2009.08-00680-ge564407-dirty ( 8月 20 2014 - 20:17:07)

CPU: Freescale i.MX6 family TO1.2 at 792 MHz
Thermal sensor with ratio = 182
Temperature:   54 C, calibration data 0x57e4e469
mx6q pll1: 792MHz
mx6q pll2: 528MHz
mx6q pll3: 480MHz
mx6q pll8: 50MHz
ipg clock     : 66000000Hz
ipg per clock : 66000000Hz
uart clock    : 80000000Hz
cspi clock    : 60000000Hz
ahb clock     : 132000000Hz

未知原因突然出现，然后重启。

相关资料：

1. ​​javascript:void(0)​​

EVDO蓝牙打电话后，挂断电话手机完全没有声音，这个问题产生的原因就是BT PCMmaster，主芯片PCM slave造成的，再挂断电话时有个提示音没有播出来。从log看是申请不到内存，其实是能看到obtainBuffer timed out (is the CPU pegged?)这句log，后来高通给了patch，是在audio_out.c文件做的修改

将audio_write（）函数中的进程睡眠唤醒方式做了修改

rc = wait_event_interruptible(audio->wait,
           (frame->used == 0) || (audio->stopped));

改成

rc = wait_event_interruptible_timeout(audio->wait,
           (frame->used == 0) || (audio->stopped),
           msecs_to_jiffies(2000));

2.​​ http://soledadpenades.com/2009/08/25/is-the-cpu-pegged-and-friends/​​

it means you are not filling in quickly enough the audio buffer for an AudioTrack， Or that it seems so