(gdb) bt full
#0  g_private_get_posix_impl (private_key=0x60a690) at gthread-posix.c:290
No locals.
#1  0x00000038ac260191 in thread_memory_from_self (mem_size=56, mem_block=0x7fffec002800) at gslice.c:441
        tmem = <value optimized out>
#2  g_slice_free1 (mem_size=56, mem_block=0x7fffec002800) at gslice.c:883
        tmem = 0x1
        ix = <value optimized out>
        chunk_size = 64
        acat = 1
#3  0x00007ffff1d25e8a in sp_close_shm (area=0x7fffec002800) at shmpipe.c:349
        __PRETTY_FUNCTION__ = "sp_close_shm"
#4  0x00007ffff1d25c2e in sp_open_shm (path=0x7fffec0011b0 "/shmpipe. 7221.    0", id=1, perms=0, size=10000000) at shmpipe.c:300
        area = 0x7fffec002800
        tmppath = "\300\312\354\360\377\177\000\000\300@~\000\000\000\000\000\025\000\000\000\000\000\000\000 \000\000\354\377\177\000"
        flags = 0
        prot = 21
        i = 0
#5  0x00007ffff1d268e1 in sp_client_recv (self=0x636630, buf=0x7ffff0eccb50) at shmpipe.c:658
        area_name = 0x7fffec0011b0 "/shmpipe. 7221.    0"
        newarea = 0x1
        area = 0x7ffff0eccbc0
        cb = {type = 1, area_id = 1, payload = {new_shm_area = {size = 10000000, path_size = 21}, buffer = {offset = 10000000, size = 21}, ack_buffer = {offset = 10000000}}}
        retval = 21
        __PRETTY_FUNCTION__ = "sp_client_recv"
#6  0x00007ffff1d28739 in gst_shm_src_create (psrc=0x7e40c0, outbuf=0x7ffff0eccd48) at gstshmsrc.c:333
        self = 0x7e40c0
        buf = 0x0
        rv = 0
        gsb = 0xffffffffffffffff
        __FUNCTION__ = "gst_shm_src_create"
#7  0x0000003083629722 in gst_base_src_get_range (src=0x7e40c0, offset=0, length=4096, buf=0x7ffff0eccd48) at gstbasesrc.c:2188
        ret = <value optimized out>
        bclass = 0x6b2250
        status = 7028848
        __PRETTY_FUNCTION__ = "gst_base_src_get_range"
#8  0x000000308362ab13 in gst_base_src_loop (pad=0x6b4070) at gstbasesrc.c:2445
        src = 0x7e40c0
        buf = 0x0
        ret = <value optimized out>
        position = 0
        eos = 0
        blocksize = <value optimized out>
        pending_events = 0x0
        tmp = <value optimized out>
        __PRETTY_FUNCTION__ = "gst_base_src_loop"
#9  0x0000003083e861a8 in gst_task_func (task=0x7fe020) at gsttask.c:327
        lock = 0x676d40
        tself = 0x7eded0
        priv = 0x7fe0c0
        __PRETTY_FUNCTION__ = "gst_task_func"
#10 0x00000038ac26c60b in g_thread_pool_thread_proxy (data=<value optimized out>) at gthreadpool.c:319
        task = 0x7ebe60
        pool = 0x619160
#11 0x00000038ac26a6c4 in g_thread_create_proxy (data=0x7eded0) at gthread.c:1897
        thread = 0x7eded0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#12 0x00000038ab207851 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#13 0x00000038aaae811d in clone () from /lib64/libc.so.6
No symbol table info available.

