Hi, everyone, I encounter a strange issue that sound would be bad after 
running below testcase on intel target over 7 hours.

composite:

libsdl1.2-dev 1.2.14-4ubuntu1.1
libsdl-mixer1.2 1.2.8-6build1
alsa-lib-1.0.29


this issue would disappear if I try to attach process by gdb or adding 
print in alsa-lib/pcm. any comments would be appreciated.

Yadi