$ UBSAN_OPTIONS=halt_on_error=1 PSYCOPG_TEST_DSN="host=$(realpath ../..) dbname=test" PYTHONPATH=../psycopg-3.1.17-python3_11/install/usr/lib/python3.11/site-packages/ PYTEST_DISABLE_PLUGIN_AUTOLOAD=1 PSYCOPG_IMPL=c /usr/bin/python3.11 -m pytest -vv -ra -l -Wdefault --color=yes -o console_output_style=count -o tmp_path_retention_count=0 -o tmp_path_retention_policy=failed -p anyio tests/test_copy_async.py::test_read_rows -s
===================================================================================== test session starts ======================================================================================
platform linux -- Python 3.11.7, pytest-7.4.4, pluggy-1.3.0 -- /usr/bin/python3.11
cachedir: .pytest_cache
default selector: EpollSelector
Server version: PostgreSQL 16.2 on powerpc64le-unknown-linux-gnu, compiled by powerpc64le-unknown-linux-gnu-gcc (Gentoo 13.2.1_p20240113-r1 p12) 13.2.1 20240113, 64-bit
libpq wrapper implementation: c
libpq used: 160002
libpq compiled: 160002
rootdir: /var/tmp/portage/dev-python/psycopg-3.1.17/work/psycopg-3.1.17
configfile: pyproject.toml
plugins: anyio-4.2.0
collected 4 items                                                                                                                                                                              

tests/test_copy_async.py::test_read_rows[asyncio-names-0] PASSED
tests/test_copy_async.py::test_read_rows[asyncio-names-1] psycopg_c/_psycopg.c:19287:21: runtime error: load of misaligned address 0x000144ecf413 for type 'uint16_t', which requires 2 byte alignment
0x000144ecf413: note: pointer points here
 00  00 00 00 00 03 00 00 00  04 00 00 00 0a 00 00 00  05 68 65 6c 6c 6f 00 00  00 2c 00 00 00 01 00
              ^ 
2024-02-09 22:05:25.696 GMT [16183] LOG:  unexpected EOF on client connection with an open transaction