# Agents are hangs when pipeline is canceled by timeout

**URL:** <https://forum.buildkite.community/t/agents-are-hangs-when-pipeline-is-canceled-by-timeout/619>\
**Category:** General\
**Created:** [July 25, 2019, 7:18am UTC](https://forum.buildkite.community/t/agents-are-hangs-when-pipeline-is-canceled-by-timeout/619 "2019-07-25T07:18:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dzenly](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.buildkite.community/dzenly/32/569_2.png) [@Dzenly](https://forum.buildkite.community/u/Dzenly)\
**Post date:** [July 25, 2019, 7:18am UTC](https://forum.buildkite.community/t/agents-are-hangs-when-pipeline-is-canceled-by-timeout/619/1 "2019-07-25T07:18:17Z")

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I am a devops in my company. And I had a vacation. When I returned I noticed then 3 of 4 buildkite agents are shown in agent list as busy with pipelines which are cancelled by timeout several days ago.  
All those days 3 agents was imitating some activity on canceled pipelines and so were disabled for other pipelines.

In this situation agents are shown as busy but ‘My builds’ does not show any activity.

Is it a known bug ? How to workaround it ?

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**Author:** ![anon46008679](https://avatars.discourse-cdn.com/v4/letter/a/da6949/32.png) [@anon46008679](https://forum.buildkite.community/u/anon46008679)\
**Post date:** [July 29, 2019, 5:35am UTC](https://forum.buildkite.community/t/agents-are-hangs-when-pipeline-is-canceled-by-timeout/619/2 "2019-07-29T05:35:11Z")

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Hi @Dzenly! Sorry you hit that when you returned from vacation.

That’s unusual behaviour, and certainly not expected. The best way to diagnose would be to email [support@buildkite.com](mailto:support@buildkite.com) and provide as many details as you can, such as links to the agents/builds/jobs, and the logs of the affected agents.

We’ve also just rolled out the following, which might help:

> **[Identify if you’re running an agent version with known issues](https://buildkite.com/changelog/73-identify-if-youre-running-an-agent-version-with-known-issues)**
>
> To make it easier to see if you’re running an agent version with a known issue, we've updated the agent list, job timeline, and agent page to show a warning and a link to upgrade instructions 🐛

(e.g. v3.11.0 agents could get stuck in a loop not being able to accept a job: [https://github.com/buildkite/agent/releases/tag/v3.11.0](https://github.com/buildkite/agent/releases/tag/v3.11.0))