strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted

masterross

Well-Known Member
Apr 7, 2004
62
3
158
Hi,

I'm getting
strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
When I try to trace process via
Home »System Health »Process Manager
or shell
The process is php-fpm: pool one using much CPU so I eanted to trace it.
Unfortunatelly it's not possible.

Any idea?
 

masterross

Well-Known Member
Apr 7, 2004
62
3
158
Hi,
It's hardware dedicated server and I'm logged as root.
The problem seems to was only with this proccess which I had to kill.
Other php-fpm: pools can be traced.
But I wanted to see why the mentioned process consume so much CPU and didnt exit.
Anyway thank you for your help.