(gdb) bt
#0  0x016b9220 in SMACDPAGsdecDispatch ()
#1  0x016b9064 in SMACDPAGsdecDispatch ()
#2  0x016b9f84 in SMACDPAGsdecDispatch ()
#3  0x01727440 in dyld_stub_memcmp ()
#4  0x90bdec0c in CallComponent ()
#5  0x94317978 in AudioCodecInitialize ()
#6  0x94220494 in CodecConverter::CheckInitialize ()
#7  0x94220fb0 in CodecConverter::StoreMagicCookie ()
#8  0x94220a90 in CodecConverter::SetProperty ()
#9  0x942087d8 in AudioConverterChain::SetProperty ()
#10 0x94208248 in AudioConverterSetProperty ()

(gdb) display /i $pc
11: x/i $pc  0x16b9220 <SMACDPAGsdecDispatch+2400>:     lwz     r0,4(r30)