Cliff Cai wrote: > Source : [ /usr/lib/libasound.so.2 + 0x46da6 ] > 4 Target : [ /usr/lib/libasound.so.2 + 0x46d9a ] Please show this trace with an alsa-lib that hasn't its debug information stripped out. Does this still happen with alsa-lib 1.0.15? Regards, Clemens