# Reading /proc/pid/cmdline can hang forever

- **期号**: SRE Weekly Issue #210（2020-03-08）
- **作者**: rachelbythebay
- **链接**: https://rachelbythebay.com/w/2014/10/27/ps/

## 简介

I wasn’t aware of this little pitfall of memory cgroups.

## 正文

> ⚠️ 抓取失败：URLError: _ssl.c:1015: The handshake operation timed out