[New LWP 13527]
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
Core was generated by `python2 reproduction.py'.
Program terminated with signal 11, Segmentation fault.
#0  gst_v4l2_buffer_pool_process (pool=0x0, buf=buf@entry=0x9717668) at gstv4l2bufferpool.c:1036
#0  gst_v4l2_buffer_pool_process (pool=0x0, buf=buf@entry=0x9717668) at gstv4l2bufferpool.c:1036
        ret = GST_FLOW_OK
        bpool = 0x0
        obj = <optimized out>
        __FUNCTION__ = "gst_v4l2_buffer_pool_process"
#1  0xb3e8a2bb in gst_v4l2src_fill (src=src@entry=0x9680100, buf=buf@entry=0x9717668) at gstv4l2src.c:771
        v4l2src = 0x9680100
        obj = 0x967f378
        ret = <optimized out>
        clock = <optimized out>
        abs_time = <optimized out>
        base_time = <optimized out>
        timestamp = 677828597810659328
        duration = 13195018610196095296
        delay = <optimized out>
        __FUNCTION__ = "gst_v4l2src_fill"
#2  0xb3e5437b in gst_push_src_fill (bsrc=0x9680100, offset=18446744073709551615, length=4096, ret=0x9717668) at gstpushsrc.c:169
        fret = <optimized out>
        src = 0x9680100
        pclass = <optimized out>
#3  0xb3e3a217 in gst_base_src_default_create (src=0x9680100, offset=18446744073709551615, size=4096, buffer=0xb12fd134) at gstbasesrc.c:1422
        bclass = <optimized out>
        ret = <optimized out>
        res_buf = 0x9717668
        __PRETTY_FUNCTION__ = "gst_base_src_default_create"
#4  0xb3e542af in gst_push_src_create (ret=0xb12fd134, length=4096, offset=<optimized out>, bsrc=0x9680100) at gstpushsrc.c:134
        fret = GST_FLOW_OK
#5  gst_push_src_create (bsrc=0x9680100, offset=18446744073709551615, length=4096, ret=0xb12fd134) at gstpushsrc.c:122
        fret = <optimized out>
        src = 0x9680100
        pclass = <optimized out>
#6  0xb3e3cdf2 in gst_base_src_get_range (src=src@entry=0x9680100, offset=18446744073709551615, length=length@entry=4096, buf=buf@entry=0xb12fd204) at gstbasesrc.c:2345
        ret = <optimized out>
        bclass = 0x967ca88
        status = 4294967295
        res_buf = 0x0
        in_buf = 0x0
        __PRETTY_FUNCTION__ = "gst_base_src_get_range"
#7  0xb3e3f002 in gst_base_src_loop (pad=0x9682008) at gstbasesrc.c:2590
        src = 0x9680100
        buf = 0x0
        ret = <optimized out>
        position = <optimized out>
        eos = 0
        blocksize = 4096
        pending_events = 0x0
        tmp = <optimized out>
        __PRETTY_FUNCTION__ = "gst_base_src_loop"
#8  0xb6038788 in gst_task_func (task=task@entry=0x97175c8) at gsttask.c:316
        lock = 0x968204c
        tself = 0x97037b0
        priv = 0x9717640
        __PRETTY_FUNCTION__ = "gst_task_func"
#9  0xb60398c8 in default_func (tdata=0x969f950, pool=0x9225a98) at gsttaskpool.c:70
        func = 0xb6038520 <gst_task_func>
        user_data = 0x97175c8
#10 0xb7121ce8 in g_thread_pool_thread_proxy (data=0x9131880) at /build/buildd/glib2.0-2.34.1/./glib/gthreadpool.c:309
        task = 0x969f950
        pool = 0x9131880
#11 0xb7121303 in g_thread_proxy (data=0x97037b0) at /build/buildd/glib2.0-2.34.1/./glib/gthread.c:797
        thread = 0x97037b0
#12 0xb770fd4c in start_thread (arg=0xb12fdb40) at pthread_create.c:308
        __res = <optimized out>
        pd = 0xb12fdb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1217261568, 0, 4001536, -1322265496, 875915194, -1972871242}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#13 0xb762ad3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
