# Filebeat (7.6.2) crashes on fingerprint

**URL:** <https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [April 20, 2020, 8:16am UTC](https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805 "2020-04-20T08:16:13Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![nickytd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nickytd/32/21746_2.png) [@nickytd](https://discuss.elastic.co/u/nickytd)\
**Post date:** [April 20, 2020, 8:16am UTC](https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805/1 "2020-04-20T08:16:14Z")

</div>

filebeat crashes when adding fingerprint  
Can you please take a look and confirm? Thanks.

Here is the stack trace:  
...

```auto
panic: d.nx != 0

goroutine 113 [running]:
crypto/sha256.(*digest).checkSum(0xc000c0f950, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/crypto/sha256/sha256.go:234 +0x1d9
crypto/sha256.(*digest).Sum(0xc0000c6000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/crypto/sha256/sha256.go:210 +0x69
github.com/elastic/beats/libbeat/processors/fingerprint.(*fingerprint).Run(0xc00012e070, 0xc0000d0300, 0xc0000d0300, 0x0, 0x0)
	/go/src/github.com/elastic/beats/libbeat/processors/fingerprint/fingerprint.go:73 +0xd1
github.com/elastic/beats/libbeat/publisher/processing.(*group).Run(0xc0006c0450, 0xc0000d0300, 0xc0000d0300, 0x0, 0x0)
	/go/src/github.com/elastic/beats/libbeat/publisher/processing/processors.go:104 +0x94
github.com/elastic/beats/libbeat/publisher/processing.(*group).Run(0xc000781d70, 0xc0000d0300, 0xed62f4f4d, 0x0, 0xc000753ce0)
	/go/src/github.com/elastic/beats/libbeat/publisher/processing/processors.go:104 +0x94
github.com/elastic/beats/libbeat/publisher/pipeline.(*client).publish(0xc00070bc00, 0x391f483f, 0xed62f4f4d, 0x0, 0x0, 0xc000753f80, 0x31fb340, 0xc0004f3440, 0x0)
	/go/src/github.com/elastic/beats/libbeat/publisher/pipeline/client.go:89 +0x571
github.com/elastic/beats/libbeat/publisher/pipeline.(*client).Publish(0xc00070bc00, 0x391f483f, 0xed62f4f4d, 0x0, 0x0, 0xc000753f80, 0x31fb340, 0xc0004f3440, 0x0)
	/go/src/github.com/elastic/beats/libbeat/publisher/pipeline/client.go:68 +0xc2
github.com/elastic/beats/filebeat/channel.(*outlet).OnEvent(0xc000781e60, 0x391f483f, 0xed62f4f4d, 0x0, 0x0, 0xc000753f80, 0x31fb340, 0xc0004f3440, 0x0, 0x1)
	/go/src/github.com/elastic/beats/filebeat/channel/outlet.go:64 +0x7e
github.com/elastic/beats/filebeat/channel.SubOutlet.func1(0xc000d242a0, 0x37331e0, 0xc000781e60)
	/go/src/github.com/elastic/beats/filebeat/channel/util.go:45 +0x10d
created by github.com/elastic/beats/filebeat/channel.SubOutlet
	/go/src/github.com/elastic/beats/filebeat/channel/util.go:43 +0xf8

```

---

<div class="post-metadata">

**Author:** ![shaunak](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shaunak/32/6643_2.png) [@shaunak](https://discuss.elastic.co/u/shaunak)\
**Post date:** [April 20, 2020, 3:14pm UTC](https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805/2 "2020-04-20T15:14:39Z")

</div>

Hi @nickytd, this looks like a bug. Would you mind creating an issue for it in the Beats GitHub repository, please? [https://github.com/elastic/beats/issues/new?template=bug-report.md](https://github.com/elastic/beats/issues/new?template=bug-report.md)

Please provide this stack trace but also some steps to reproduce. For instance, it would be helpful to know your Filebeat configuration at the time of the bug and ideally also the input event/log entry that resulted in this panic.

Thank you,

Shaunak

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<div class="post-metadata">

**Author:** ![nickytd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nickytd/32/21746_2.png) [@nickytd](https://discuss.elastic.co/u/nickytd)\
**Post date:** [April 21, 2020, 1:49pm UTC](https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805/3 "2020-04-21T13:49:34Z")

</div>

Here is a [k8s-logging-helm](https://github.com/nickytd/k8s-logging-helm) chart that installs journalbeat filebeat, kibana and ES to reproduce on minikube.

Uncomment the section in the [filebeat ConfigMap](https://github.com/nickytd/k8s-logging-helm/blob/master/templates/filebeat-configmap.yaml)

Cheers  
Niki

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 19, 2020, 1:49pm UTC](https://discuss.elastic.co/t/filebeat-7-6-2-crashes-on-fingerprint/228805/4 "2020-05-19T13:49:35Z")

</div>

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