GStreamer 1.0: segfault in ligoxml_write_Array

Running on !129 (merged), I hit a segfault.

It takes a long time (sometimes days).

I now have 5 bg runs going with -ggdb here: /fred/oz016/tdavies/projects/gstreamer_python_upgrade/testing/bg/9_01/

I have 2 old runs that didn't compile with -ggdb here: /fred/oz016/tdavies/projects/gstreamer_python_upgrade/testing/bg/
Which give the following backtrace (I've since recompiled):

#0  0x000014c078508cac in xmlEncOutputChunk () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/libxml2.so.2
#1  0x000014c07850ae9a in xmlCharEncOutput () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/libxml2.so.2
#2  0x000014c07853b62f in xmlOutputBufferWrite () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/libxml2.so.2
#3  0x000014c0785d7349 in xmlTextWriterWriteRawLen () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/libxml2.so.2
#4  0x000014c0785d75e4 in xmlTextWriterWriteString () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/libxml2.so.2
#5  0x000014c078fe40c7 in ligoxml_write_Array () from /fred/oz016/tdavies/projects/gstreamer_python_upgrade//install/lib/libgstlalspiir.so.0
#6  0x000014c0788e388c in trigger_stats_xml_dump () from /fred/oz016/tdavies/projects/gstreamer_python_upgrade//install/lib/gstreamer-1.0/libgstcuda.so
#7  0x000014c0788e4e8b in cohfar_accumbackground_chain () from /fred/oz016/tdavies/projects/gstreamer_python_upgrade//install/lib/gstreamer-1.0/libgstcuda.so
#8  0x000014c0e383f4cc in gst_pad_chain_data_unchecked () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#9  0x000014c0e38417ba in gst_pad_push_data () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#10 0x000014c0e3849012 in gst_pad_push () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#11 0x000014c0788de283 in collected () from /fred/oz016/tdavies/projects/gstreamer_python_upgrade//install/lib/gstreamer-1.0/libgstcuda.so
#12 0x000014c0d60f5668 in gst_collect_pads_check_collected () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../.././././libgstbase-1.0.so.0
#13 0x000014c0d60f76e2 in gst_collect_pads_chain () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../.././././libgstbase-1.0.so.0
#14 0x000014c0e383f4cc in gst_pad_chain_data_unchecked () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#15 0x000014c0e38417ba in gst_pad_push_data () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#16 0x000014c0e3849012 in gst_pad_push () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#17 0x000014c078a04a23 in gst_queue_loop () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/gstreamer-1.0/libgstcoreelements.so
#18 0x000014c0e3879bd1 in gst_task_func () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../././libgstreamer-1.0.so.0
#19 0x000014c0e464b027 in g_thread_pool_thread_proxy () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../libglib-2.0.so.0
#20 0x000014c0e464a730 in g_thread_proxy () from /fred/oz016/envs/mambaforge/envs/igwn-py38-testing-spiir/lib/python3.8/site-packages/gi/../../../libglib-2.0.so.0
#21 0x000014c0ebbc2ea5 in start_thread () from /lib64/libpthread.so.0
#22 0x000014c0eafdab0d in clone () from /lib64/libc.so.6