After installing WinDBG I found that violation occurs at:

php_xdebug_2_0_3_5_2_5!xdebug_init_oparray:
01948470 6a00 push 0x0
01948472 6a00 push 0x0
01948474 ff1570929501 call dword ptr [php_xdebug_2_0_3_5_2_5!xdebug_init_oparray+0x10e00 (01959270)]
0194847a 8b00 mov eax,[eax]
0194847c 8b0dec339601 mov ecx,[php_xdebug_2_0_3_5_2_5!zend_extension_entry+0x6dc (019633ec)]
01948482 83c408 add esp,0x8
01948485 8b5488fc mov edx,[eax+ecx4-0x4]
01948489 8b4c2404 mov ecx,[esp+0x4]
0194848d 8b8280000000 mov eax,[edx+0x80]
01948493 c744817c00000000 mov dword ptr [ecx+eax4+0x7c],0x0
0194849b c3 ret

so i think problem is in this code:

ZEND_DLEXPORT void xdebug_init_oparray(zend_op_array *op_array)
{
TSRMLS_FETCH();
op_array->reserved[XG(reserved_offset)] = 0;
}

maybe reserved_offset has some invalid values...