(gdb) bt f
#0  0x02474f40 in ?? ()
No symbol table info available.
#1  0x0053d6a9 in pa_command_request (pd=0x9d09918, command=61, tag=4294967295, t=0x9d09218, userdata=0x9cfb140) at pulse/stream.c:749
        s = 0x9cf2f10
        bytes = 4960
        channel = 0
        __func__ = "pa_command_request"
        __PRETTY_FUNCTION__ = "pa_command_request"
#2  0x01f4240c in pa_pdispatch_run (pd=0x9d09918, packet=0x9d14428, creds=0x9cfcfc8, userdata=0x9cfb140) at pulsecore/pdispatch.c:331
        tag = 4294967295
        command = 61
        ts = 0x9d09218
        ret = 5541304
        __func__ = "pa_pdispatch_run"
        __PRETTY_FUNCTION__ = "pa_pdispatch_run"
#3  0x00520319 in pstream_packet_callback (p=0x9cfcf00, packet=0x9d14428, creds=0x9cfcfc8, userdata=0x9cfb140) at pulse/context.c:346
        __func__ = "pstream_packet_callback"
        __PRETTY_FUNCTION__ = "pstream_packet_callback"
#4  0x01f46cb8 in do_read (p=0x9cfcf00) at pulsecore/pstream.c:816
        release_memblock = <value optimized out>
        d = <value optimized out>
        l = <value optimized out>
        r = <value optimized out>
#5  do_something (p=0x9cfcf00) at pulsecore/pstream.c:184
        __func__ = "do_something"
        __PRETTY_FUNCTION__ = "do_something"
#6  0x01f31d5e in callback (m=0x9cfb070, e=0x9d098e8, fd=35, f=PA_IO_EVENT_INPUT, userdata=0x9cfae20) at pulsecore/iochannel.c:119
        changed = <value optimized out>
        __func__ = "callback"
        __PRETTY_FUNCTION__ = "callback"
#7  0x0053050b in dispatch_pollfds (m=0x9cfb030) at pulse/mainloop.c:688
        e = 0x9d098e8
        k = 0
        r = 0
#8  pa_mainloop_dispatch (m=0x9cfb030) at pulse/mainloop.c:933
        dispatched = <value optimized out>
        __func__ = "pa_mainloop_dispatch"
        __PRETTY_FUNCTION__ = "pa_mainloop_dispatch"
#9  0x00530a21 in pa_mainloop_iterate (m=0x9cfb030, block=1, retval=0x0) at pulse/mainloop.c:964
        r = <value optimized out>
        __func__ = "pa_mainloop_iterate"
        __PRETTY_FUNCTION__ = "pa_mainloop_iterate"
#10 0x00530ae4 in pa_mainloop_run (m=0x9cfb030, retval=0x0) at pulse/mainloop.c:979
        r = <value optimized out>
#11 0x005422b3 in thread (userdata=0x9cf0860) at pulse/thread-mainloop.c:94
        mask = {__val = {2147483647, 4294967294, 4294967295 <repeats 30 times>}}
#12 0x01f57045 in internal_thread_func (userdata=0x9cfd350) at pulsecore/thread-posix.c:83
        __func__ = "internal_thread_func"
        __PRETTY_FUNCTION__ = "internal_thread_func"
#13 0x005ef985 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#14 0x0047e1ee in clone () from /lib/libc.so.6
No symbol table info available.
(gdb) q
A debugging session is active.