JIT segmentation fault in PHP 8.1

Description

PHP 8.1.0 + 8.1.1 produces segfault, randomly. Downgrading to 8.0 solves the issue.

--core dump---

BFD: Warning: coredump-php-fpm.30267 is truncated: expected core file size >= 5413076992, found: 35983360.
[New LWP 30267]
[New LWP 1887]
[New LWP 1886]
[New LWP 1888]
Cannot access memory at address 0x7f277dbb3128
Cannot access memory at address 0x7f277dbb3120
Failed to read a valid object file image from memory.
Core was generated by `php-fpm: pool xxxxxx '.

Program terminated with signal 11, Segmentation fault.
#0 0x000055bbf04c0f25 in ZEND_NEW_SPEC_CONST_UNUSED_HANDLER () at /usr/src/debug/php-8.1.1/Zend/zend_vm_execute.h:10137
10137 ce = CACHED_PTR(opline->op2.num);
(gdb) bt
Python Exception <class 'gdb.MemoryError'> Cannot access memory at address 0x7ffdc940e3a8:
(gdb) bt
#0 0x000055bbf04c0f25 in ZEND_NEW_SPEC_CONST_UNUSED_HANDLER () at /usr/src/debug/php-8.1.1/Zend/zend_vm_execute.h:10137
Cannot access memory at address 0x7ffdc940e3a8
(gdb) frame 0
#0 0x000055bbf04c0f25 in ZEND_NEW_SPEC_CONST_UNUSED_HANDLER () at /usr/src/debug/php-8.1.1/Zend/zend_vm_execute.h:10137
10137 ce = CACHED_PTR(opline->op2.num);
(gdb) info frame
Stack level 0, frame at 0x7ffdc940e3b0:
rip = 0x55bbf04c0f25 in ZEND_NEW_SPEC_CONST_UNUSED_HANDLER (/usr/src/debug/php-8.1.1/Zend/zend_vm_execute.h:10137); saved rip Cannot access memory at address 0x7ffdc940e3a8

this is the only available info in the core dump.

PHP Version

PHP 8.1.0 + 8.1.1

Operating System

CentOS 7

Zend/zend_vm_execute.h:10137 の core dump trace、具体的には ZEND_NEW_SPEC_CONST_UNUSED_HANDLER から始め、PHP 8.1.0 と 8.1.1 の JIT の動作を PHP 8.0 と比較してください。レポートには断続的な php-fpm のクラッシュ以外の reproducer がないため、完了とするには、再現可能な障害を切り分け、それに対して修正を検証する必要があります。