program stuck in __memcpy_ssse3_back , cpu 100%

Hi, I m using the project to do mysql binlog to redis thing.

but in some cases, my cpu goes up to 100% and the sync process seems to hang.

i did some digging and found the stack always stop at

Program received signal SIGINT, Interrupt.
0x00007fe57a06e698 in __memcpy_ssse3_back () from /lib64/libc.so.6
(gdb) py-bt
Traceback (most recent call first):
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 148, in read
self.__data_buffer = self.__data_buffer[size:]
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 266, in read_variable_length_string
byte = byte2int(self.read(1))
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 361, in read_binary_json_type
return self.read_variable_length_string()
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 463, in _read
return self.read_binary_json_type(x[0], length)
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 465, in
return [_read(x) for x in values_type_offset_inline]
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 465, in read_binary_json_array
return [_read(x) for x in values_type_offset_inline]
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 359, in read_binary_json_type
return self.read_binary_json_array(length - 1, large)
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/packet.py", line 352, in read_binary_json
return self.read_binary_json_type(t, length)
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/row_event.py", line 181, in _read_column_data
values[name] = self.packet.read_binary_json(column.length_size)
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/row_event.py", line 447, in _fetch_one_row
row["values"] = self._read_column_data(self.columns_present_bitmap)
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/row_event.py", line 422, in _fetch_rows
self.__rows.append(self._fetch_one_row())
File "/usr/local/lib/python3.7/site-packages/pymysqlreplication/row_event.py", line 427, in rows
self._fetch_rows()
File "/data/release/nebula_cmdb/server/exec/synccache.py", line 395, in del_cache
for row in binlogevent.rows:

does anyone have the same issue ?
any help is appreciated ~