Ubuntu在一段时间内做了一些内核强化技术，它具有制作 gdb $ c $的美妙效果c>， ptrace 和 strace 在没有sudo权限的情况下停止工作，作为恶意软件防护更改。如果您按照此评论它将允许它正常工作。

Ubuntu did some kernel hardening techniques a while back that had the wonderful effect of making gdb, ptrace and strace stop working without sudo permissions, as a malware prevention change. If you follow this comment it'll allow it to work properly.