Segmentation fault (EXC_BAD_ACCESS) when running make test on PHP 8.6-dev (macOS ARM64)

[arshidkv12]

Description

make test TESTS="tests/basic/001.phpt"                


Build complete.
Don't forget to run 'make test'.


=====================================================================
PHP         : /Users/arshid/Downloads/php-src/sapi/cli/php
PHP_SAPI    : cli
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src/tmp-php.ini
More .INIs  :
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/cgi/php-cgi
PHP_SAPI    : cgi-fcgi
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src/tmp-php.ini
More .INIs  :
---------------------------------------------------------------------
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/phpdbg/phpdbg
PHP_SAPI    : phpdbg
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src/tmp-php.ini
More .INIs  :
---------------------------------------------------------------------
CWD         : /Users/arshid/Downloads/php-src
Extra dirs  :
VALGRIND    : Not used
=====================================================================
Running selected tests.
/bin/sh: line 1: 25648 Segmentation fault: 11  TEST_PHP_EXECUTABLE=/Users/arshid/Downloads/php-src/sapi/cli/php TEST_PHP_SRCDIR=/Users/arshid/Downloads/php-src CC="cc" /Users/arshid/Downloads/php-src/sapi/cli/php -n -c /Users/arshid/Downloads/php-src/tmp-php.ini -d 'open_basedir=' -d 'output_buffering=0' -d 'memory_limit=-1' /Users/arshid/Downloads/php-src/run-tests.php -n -c /Users/arshid/Downloads/php-src/tmp-php.ini -d extension_dir=/Users/arshid/Downloads/php-src/modules/ ` if test "x" != "x"; then for i in ""; do . $i; if test "x$dlname" != "xdl_test.so"; then /Users/arshid/Downloads/php-src/build/shtool echo -n -- " -d extension=$dlname"; fi; done; fi; if test "x" != "x"; then for i in ""; do . $i; /Users/arshid/Downloads/php-src/build/shtool echo -n -- " -d zend_extension=/Users/arshid/Downloads/php-src/modules/$dlname"; done; fi` tests/basic/001.phpt
make: *** [test] Error 139 

sudo lldb -b -o "run" -o "frame select 0" -o "source list" -o "quit" -- ./sapi/cli/php run-tests.php tests/basic/001.phpt
Password:
(lldb) target create "./sapi/cli/php"
Current executable set to '/Users/arshid/Downloads/php-src/sapi/cli/php' (arm64).
(lldb) settings set -- target.run-args  "run-tests.php" "tests/basic/001.phpt"
(lldb) run

=====================================================================
PHP         : /Users/arshid/Downloads/php-src/sapi/cli/php
PHP_SAPI    : cli
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/cgi/php-cgi
PHP_SAPI    : cgi-fcgi
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/phpdbg/phpdbg
PHP_SAPI    : phpdbg
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
CWD         : /Users/arshid/Downloads/php-src
Extra dirs  :
VALGRIND    : Not used
=====================================================================
Running selected tests.
Process 25731 launched: '/Users/arshid/Downloads/php-src/sapi/cli/php' (arm64)
Process 25731 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000000000000
error: memory read failed for 0x0

Target 0: (php) stopped.
(lldb) frame select 0
frame #0: 0x0000000000000000
error: memory read failed for 0x0
(lldb) list
   1299                 }
   1300
   1301                 descriptors[ndesc].index = (int)nindex;
   1302
   1303                 ZVAL_DEREF(descitem);
   1304                 if (Z_TYPE_P(descitem) == IS_RESOURCE) {
   1305                         if (set_proc_descriptor_from_resource(descitem, &descriptors[ndesc], ndesc) == FAILURE) {
(lldb) 
   1306                                 goto exit_fail;
   1307                         }

Configure

 bison --version                 
 bison (GNU Bison) 3.8.2
./configure  --disable-all --enable-debug

Cli

sapi/cli/php -r 'proc_open("ls", [], $pipes);' // it is working 

PHP Version

PHP 8.6.0-dev (cli) (built: Apr 11 2026 08:56:25) (NTS DEBUG)
Copyright (c) The PHP Group
Zend Engine v4.6.0-dev, Copyright (c) Zend Technologies
    with Zend OPcache v8.6.0-dev, Copyright (c), by Zend Technologies

Operating System

Mac OS

[devnexen]

cannot reproduce on my mac, in your lldb session can you also type frame variable please ?

[arshidkv12]

sudo lldb -b -o "run" -o "frame select 0" -o "source list" -o "quit" -- ./sapi/cli/php run-tests.php tests/basic/001.phpt
(lldb) target create "./sapi/cli/php"
Current executable set to '/Users/arshid/Downloads/php-src/sapi/cli/php' (arm64).
(lldb) settings set -- target.run-args  "run-tests.php" "tests/basic/001.phpt"
(lldb) run

=====================================================================
PHP         : /Users/arshid/Downloads/php-src/sapi/cli/php
PHP_SAPI    : cli
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/cgi/php-cgi
PHP_SAPI    : cgi-fcgi
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/phpdbg/phpdbg
PHP_SAPI    : phpdbg
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
CWD         : /Users/arshid/Downloads/php-src
Extra dirs  :
VALGRIND    : Not used
=====================================================================
Running selected tests.
Process 50251 launched: '/Users/arshid/Downloads/php-src/sapi/cli/php' (arm64)
Process 50251 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000000000000
error: memory read failed for 0x0
Target 0: (php) stopped.
(lldb) run
There is a running process, kill it and restart?: [Y/n]
Process 50251 exited with status = 9 (0x00000009) killed
Process 50260 launched: '/Users/arshid/Downloads/php-src/sapi/cli/php' (arm64)

=====================================================================
PHP         : /Users/arshid/Downloads/php-src/sapi/cli/php
PHP_SAPI    : cli
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/cgi/php-cgi
PHP_SAPI    : cgi-fcgi
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
---------------------------------------------------------------------
PHP         : /Users/arshid/Downloads/php-src/sapi/phpdbg/phpdbg
PHP_SAPI    : phpdbg
PHP_VERSION : 8.6.0-dev
ZEND_VERSION: 4.6.0-dev
PHP_OS      : Darwin - Darwin Arshids-MacBook-Air.local 24.6.0 Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132 arm64
INI actual  : /Users/arshid/Downloads/php-src
More .INIs  :
---------------------------------------------------------------------
CWD         : /Users/arshid/Downloads/php-src
Extra dirs  :
VALGRIND    : Not used
=====================================================================
Running selected tests.
Process 50260 stopped/001.phpt]
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x0000000000000000
error: memory read failed for 0x0
Target 0: (php) stopped.
(lldb) frame select 0
frame #0: 0x0000000000000000
error: memory read failed for 0x0
(lldb) list
(lldb) frame variable
(lldb) source list
   1198	#endif
   1199
   1200		int c;
   1201		int exit_status = SUCCESS;
   1202		int module_started = 0, sapi_started = 0;
   1203		char *php_optarg = NULL;
   1204		int php_optind = 1, use_extended_info = 0;
   1205		char *ini_path_override = NULL;
   1206		struct php_ini_builder ini_builder;
   1207		int ini_ignore = 0;
(lldb) frame variable
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
  * frame #0: 0x0000000000000000
    frame #1: 0x00000001004b4014 php`zif_proc_open(execute_data=0x000000010121e120, return_value=0x000000010121dd40) at proc_open.c:1404:7
    frame #2: 0x00000001007b54e4 php`ZEND_DO_ICALL_SPEC_RETVAL_USED_TAILCALL_HANDLER(execute_data=0x000000010121daa0, opline=0x00000001013f4500) at zend_vm_execute.h:54138:2
    frame #3: 0x00000001006ab3b4 php`execute_ex(ex=0x0000000101216020) at zend_vm_execute.h:110125:12
    frame #4: 0x00000001006ab760 php`zend_execute(op_array=0x0000000101287280, return_value=0x0000000000000000) at zend_vm_execute.h:115543:2
    frame #5: 0x00000001008b0a1c php`zend_execute_script(type=8, retval=0x0000000000000000, file_handle=0x000000016fdfd3b0) at zend.c:1972:3
    frame #6: 0x00000001005653f0 php`php_execute_script_ex(primary_file=0x000000016fdfd3b0, retval=0x0000000000000000) at main.c:2648:13
    frame #7: 0x00000001005656a8 php`php_execute_script(primary_file=0x000000016fdfd3b0) at main.c:2688:9
    frame #8: 0x00000001008b38d4 php`do_cli(argc=3, argv=0x00006000024641e0) at php_cli.c:949:5
    frame #9: 0x00000001008b2ae0 php`main(argc=3, argv=0x00006000024641e0) at php_cli.c:1360:18
    frame #10: 0x0000000181f72b98 dyld`start + 6076

[devnexen]

thanks. can you confirm that you are running macOs Sequoia 15 but xcode SDK 26 ? e.g. sw_vers then xcrun --show-sdk-version.

For me it is
dcarlier@Davids-MacBook-Pro php-src % sw_vers
ProductName: macOS
ProductVersion: 26.4
BuildVersion: 25E246
dcarlier@Davids-MacBook-Pro php-src % xcrun --show-sdk-version
26.2

[devnexen]

my point being it might be system libc expected present symbols mismatch with the SDK. The php code would still need fix to prevent that.

[arshidkv12]

sw_vers                                                    
ProductName:		macOS
ProductVersion:		15.7.4
BuildVersion:		24G517

 xcrun --show-sdk-version                                
26.2

sysctl -n machdep.cpu.brand_string                          
Apple M4

[devnexen]

Just to double check, can you do the following ?

nm -m sapi/cli/php | grep posix_spawn_file_actions_addchdir