Troubleshooting

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

Christophe Dujarric avatar Jérôme Vieilledent avatar
17 articles in this collection
Written by Christophe Dujarric and Jérôme Vieilledent

Blackfire on Docker: SIGSEGV / Connection reset by peer

Getting SIGSEGV and/or "Connection reset by peer" errors when using Blackfire on Docker? Read further to troubleshoot this issue
Jérôme Vieilledent avatar
Written by Jérôme Vieilledent
Updated over a week ago

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

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

You cannot profile apps running on deprecated PHP versions

The Blackfire API answered with a 402 HTTP error. Error message when profiling: You cannot profile apps running on deprecated PHP versions.
Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago

Security-Enhanced Linux (SELinux) and Blackfire

Christophe Dujarric avatar
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.)
Christophe Dujarric avatar
Written by Christophe Dujarric
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
Christophe Dujarric avatar
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.
Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago

Bypassing Fastly's cache

Common troubleshooting for "Are You Authorized to Profile this Page? Probe Not Found or Invalid signature" error when using Fastly
Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago

Unable to install the agent

Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago

Unable to install the probe

Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago

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

Christophe Dujarric avatar
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!
Christophe Dujarric avatar
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
Christophe Dujarric avatar
Written by Christophe Dujarric
Updated over a week ago