[JENKINS-73839] Pipeline hangs if process killed

We have observed that if a powershell process launched by a Jenkins pipeline is killed, the pipeline execution will hang indefinitely or a job timeout is reached.

To reproduce, you can create a pipeline that runs a powershell script that logs something, sleeps, then logs something else. If the powershell process on the agent is killed during the sleep, you'll see the job hang and never log the second log. 

---
Originally reported by butter1484, imported from: Pipeline hangs if process killed

• status: Open
  
• priority: Minor
  
• component(s): durable-task-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-09
  

Raw content of original issue

We have observed that if a powershell process launched by a Jenkins pipeline is killed, the pipeline execution will hang indefinitely or a job timeout is reached.


To reproduce, you can create a pipeline that runs a powershell script that logs something, sleeps, then logs something else. If the powershell process on the agent is killed during the sleep, you'll see the job hang and never log the second log. 

environment

```
Jenkins: 2.462.1

OS: Linux - 5.10.225-213.878.amzn2.x86_64

Java: 17.0.12 - Eclipse Adoptium (OpenJDK 64-Bit Server VM)

---

active-directory:2.35

amazon-ecs:1.48

analysis-model-api:12.4.0

ansicolor:1.0.4

ant:497.v94e7d9fffa_b_9

antisamy-markup-formatter:162.v0e6ec0fcfcf6

apache-httpcomponents-client-4-api:4.5.14-208.v438351942757

apache-httpcomponents-client-5-api:5.3.1-110.v77252fb_d4da_5

artifact-manager-s3:871.v72f7f642a_245

artifactdeployer:1.3

asm-api:9.7-33.v4d23ef79fcc8

atlassian-bitbucket-server-integration:4.0.0

authentication-tokens:1.119.v50285141b_7e1

aws-credentials:231.v08a_59f17d742

aws-global-configuration:130.v35b_7b_96f53c3

aws-java-sdk:1.12.753-463.v071a_97315959

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```