php / php/php-src

Sporadic opcache crash with apache and php-cgi.exe

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Bug Extension: opcache OS: Windows Status: Needs Triage
Dominant language
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Description

Description

We recently updated our Project from PHP 7.1.6 to 8.2. Since the switch we are sporadically experiencing opcache crashes.
With PHP 7.1.6 we did not experience any opcache issues. The server hardware and opcache configuration stayed the same.

In the windows event log we see the following:

Faulting application name: php-cgi.exe, version: 8.2.3.0, time stamp: 0x63eb5a8b
Faulting module name: php_opcache.dll, version: 8.2.3.0, time stamp: 0x62949a01
Exception code: 0xc0000005
Fault offset: 0x00000000000100b3
Faulting process id: 0x1e568
Faulting application start time: 0x01d9a3013fdeff1f
Faulting application path: D:\wap\php\php-8.2.3-nts-Win32-vs16-x64\php-cgi.exe
Faulting module path: D:\wap\php\php-8.2.3-nts-Win32-vs16-x64\ext\php_opcache.dll
Faulting package full name:
Faulting package-relative application ID:

The opcache config is loogking like this (php.ini):

[opcache]
opcache.enable=1
opcache.enable_cli=0
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.use_cwd=1
opcache.validate_timestamps=1
opcache.revalidate_path=1
opcache.save_comments=1
opcache.file_cache=D:\wap\php\opcache

I also tried PHP 8.2.7 with Apache VS17 and had the same problem.

Crash dump and analysis pdf:
php-cgi.exe_230623_.zip
opcache-crash-analysis_php-cgi.exe_230623_.pdf

PHP Version

8.2.3 NTS

Operating System

Windows Server 2019; Apache httpd 2.4.56-win64-VS16

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the supplied php-cgi.exe crash dump and analysis PDF, then investigate the opcache path used with Apache on Windows across the listed PHP 8.2 versions and configuration. Done means identifying a reproducible cause and documenting a verified resolution for the sporadic php_opcache.dll crash.

Written by the indexing model from the issue text.

Assessment

Tech stack
apache, php
Domain
backend, operating-systems, performance
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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