php_opcache crash - memory access violation

Description

I don't know how to recreate the problem. it occurs on our production server, sporadically. 6x in past 4 days. never happened on old server (Windows 2012 R2) running same versions of PHP (8.0.14 x64 thread-safe) and apache httpd (2.4.51 x64), and the same opcache configuration. We are not using JIT.

Windows Event Log shows:

Faulting application name: php.exe, version: 8.0.14.0, time stamp: 0x61bb14bc
Faulting module name: php_opcache.dll, version: 8.0.14.0, time stamp: 0x61bb1862
Exception code: 0xc0000005
Fault offset: 0x0000000000002fe6
Faulting process id: 0x25d8
Faulting application start time: 0x01d8045afae2031a
Faulting application path: C:\Program Files\php\php.exe
Faulting module path: C:\Program Files\PHP\ext\php_opcache.dll
Report Id: d7c91f64-1d66-4a3c-a206-7f1efaf4d8cc
Faulting package full name:
Faulting package-relative application ID:

php.ini:

[PHP_OPCACHE]
zend_extension=php_opcache.dll
opcache.enable=1;
opcache.enable_cli=1;
opcache.memory_consumption=512;
opcache.interned_strings_buffer=32;
opcache.validate_timestamps=1;
opcache.save_comments=0;
opcache.revalidate_path=1;
opcache.enable_file_override=1;
opcache.max_file_size=0;
opcache.file_cache_only=0;
opcache.log_verbosity_level=2;
opcache.mmap_base = 0x20000000
opcache.jit_buffer_size=0;
opcache.jit=Off;

Running Windows DebugDiag tool, with PHP 8.0.14 symbols loaded, gives the report attached here:
opcache-crash-analysis.pdf

PHP Version

PHP 8.0.14

Operating System

Windows Server 2019; apache httpd 2.4.51 x64

Begin with the attached opcache-crash-analysis.pdf, the php.ini configuration, and the Windows Event Log fault details for PHP 8.0.14. The issue is ready only when the sporadic access violation can be reproduced or narrowed to a concrete cause and a verified fix is demonstrated.