Backtrace for gdb trace - test branch https://github.com/ircmaxell/php-src/tree/zval_mark_grey_tail_recursion

gistfile1.txt

#0  zend_objects_store_del_ref_by_handle_ex (handle=47, handlers=0x101b440)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:183
#1  0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x1570d48)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#2  0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#3  i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#4  _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#5  0x0000000000828cc7 in zend_object_std_dtor (object=0x2244070) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#6  0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#7  0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#8  0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x2244180)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#9  0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#10 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#11 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#12 0x0000000000828cc7 in zend_object_std_dtor (object=0x1570dd8) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#13 0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#14 0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#15 0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x1570d48)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#16 0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#17 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#18 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#19 0x0000000000828cc7 in zend_object_std_dtor (object=0x2244070) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#20 0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#21 0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#22 0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x2244180)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#23 0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#24 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#25 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#26 0x0000000000828cc7 in zend_object_std_dtor (object=0x1570dd8) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#27 0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#28 0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#29 0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x1570d48)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#30 0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#31 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#32 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#33 0x0000000000828cc7 in zend_object_std_dtor (object=0x2244070) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#34 0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#35 0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#36 0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x2244180)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#37 0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#38 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#39 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426
#40 0x0000000000828cc7 in zend_object_std_dtor (object=0x1570dd8) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:54
#41 0x0000000000828cf9 in zend_objects_free_object_storage (object=0x2f) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects.c:137
#42 0x000000000082eb1b in zend_objects_store_del_ref_by_handle_ex (handle=<optimized out>, handlers=<optimized out>)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:221
#43 0x000000000082eb43 in zend_objects_store_del_ref (zobject=0x1570d48)
    at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_objects_API.c:173
#44 0x00000000007f60f8 in _zval_dtor (zvalue=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_variables.h:35
#45 i_zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute.h:81
#46 _zval_ptr_dtor (zval_ptr=<optimized out>) at /usr/src/build/php/php-src-zval_mark_grey_tail_recursion/Zend/zend_execute_API.c:426

(gdb) print (zval_gc_info) *pz
$1 = {z = {value = {lval = 31337624, dval = 1.5482843440690148e-316, str = {val = 0x1de2c98 "0", len = 20823032}, ht = 0x1de2c98, obj = {
        handle = 31337624, handlers = 0x13dbbf8}}, refcount__gc = 4294967295, type = 5 '\005', is_ref__gc = 0 '\000'}, u = {
    buffered = 0x2, next = 0x2}}

FYI, same bug with PHP 5.4.25 : https://gist.github.com/odoucet/8918221