Segfault protocol.cpython

• asyncpg version: 0.27.0
• PostgreSQL version: PostgreSQL 15.2 (Debian 15.2-1.pgdg110+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
• Do you use a PostgreSQL SaaS? If so, which? Can you reproduce
  the issue with a local PostgreSQL install?:
• Python version: Python 3.11.2 (main, Mar 17 2023, 02:19:18) [GCC 10.2.1 20210110] on linux
• Platform: Linux 0aa90c609aa2 4.15.0-210-generic # 221-Ubuntu SMP Tue Apr 18 08:32:52 UTC 2023 x86_64 GNU/Linux
• Do you use pgbouncer?: No
• Did you install asyncpg with pip?: Yes
• Can the issue be reproduced under both asyncio and
  uvloop?:

Error message

In logs on my server I got only

May  9 09:50:56 vdska kernel: [586745.282012] python3[2695]: segfault at 0 ip 00007ff211e8be35 sp 00007ffdb02aa3e0 error 6 in protocol.cpython-311-x86_64-linux-gnu.so[7ff211e65000+9f000]
May  9 09:51:16 vdska kernel: [586764.689741] python3[20627]: segfault at 0 ip 00007f1d3a3b4e35 sp 00007f1d3889c1c0 error 6 in protocol.cpython-311-x86_64-linux-gnu.so[7f1d3a38e000+9f000]

从报告的 protocol.cpython-311-x86_64-linux-gnu.so 崩溃日志以及列出的 Python 3.11.2、PostgreSQL 15.2 和 Linux 环境开始。未提供 reproducer、源文件或测试，因此首先建立可复现的步骤并识别发生故障的 protocol 组件；当 segfault 被复现、诊断并由回归测试覆盖时，即视为完成。