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[BUG] Datadog agent does not look at updated process command line and arguments #43137

@froque

Description

@froque

Agent version

7.71.0

Bug Report

Starting with v7.71.0, Datadog processes list does not reflect changes to the process command and arguments.

v7.70.2 shows updated information.

Reproduction Steps

To replicate:

terminal 1      |  terminal 2
----------------|---------------------------------------------------------------------------------
$ bash          |
$ echo $$       |
483405          |
                | $ realpath /proc/483405/exe
                | /usr/bin/bash
                | $ cat /proc/483405/cmdline 
                | bash
                | $ sudo datadog-agent processchecks process  | grep -A 5 'PID: 483405'
                | > PID: 483405 NSPID: 483405 PPID: 483400
                |   Container ID: 
                |   Exe: 
                |   Command Name: bash
                |   Args: 'bash'
                |   Cwd: 
$ exec htop     |
                | $ realpath /proc/483405/exe
                | /usr/bin/htop
                | $ cat /proc/483405/cmdline 
                | htop
                | $ sudo datadog-agent processchecks process  | grep -A 5 'PID: 483405'
                | > PID: 483405 NSPID: 483405 PPID: 483400
                |   Container ID: 
                |   Exe: 
                |   Command Name: bash
                |   Args: 'bash'
                |   Cwd: 

Agent configuration

No response

Operating System

Linux pm-eos-ci-runner-0 6.12.57+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.57-1 (2025-11-05) x86_64 GNU/Linux

Other environment details

No response

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