Troubleshooting

It doesn't work? Check the most frequent issues and resolutions

14 articles in this collection
Written by Beau Simensen and Christophe Dujarric

Security-Enhanced Linux (SELinux) and Blackfire

Written by Beau Simensen
Updated over a week ago

Blackfire on Platform.sh: Are You Authorized to Profile this Page? Probe Not Found or Invalid signature.

Troubleshooting for Blackfire users on Platform.sh
Written by Christophe Dujarric
Updated over a week ago

Hack Edition users cannot profile non-local HTTP applications

The Blackfire API answered with a 402 HTTP error (Hack Edition users cannot profile non-local HTTP applications.)
Written by Beau Simensen
Updated over a week ago

PHP crashes with a segmentation fault

PHP crashes with a segmentation fault (segfault) when Blackfire is installed or while profiling an application
Written by Beau Simensen
Updated over a week ago

Are You Authorized to Profile this Page? Probe Not Found or Invalid signature.

Frequent solutions and debugging walkthrough
Written by Christophe Dujarric
Updated over a week ago

Bypassing Reverse Proxy, Cache, and Content Delivery Networks (CDN)

Getting the "x-blackfire-response header does not exist. (200 - OK)" error? Solutions here.
Written by Christophe Dujarric
Updated over a week ago

Unable to install the agent

Written by Christophe Dujarric
Updated over a week ago

Unable to install the probe

Written by Christophe Dujarric
Updated over a week ago

Agent's Logs Contain Error dial tcp: i/o timeout

Written by Christophe Dujarric
Updated over a week ago

Getting the Blackfire logs

Probe not found, profiling failed... Here's how to get logs so we can help you!
Written by Christophe Dujarric
Updated over a week ago

Conflicts with pcntl_exec() calls

Some tools execute new processes using pcntl_exec() causing "Profile data is truncated" or PHP segmentation faults
Written by Beau Simensen
Updated over a week ago