apache crash, _mem_block_check ()

Hi Everyone, I recently tried php4(CVS)+apache on my script and it crashed every time with: apache error log zend_compile.c(753) : Freeing 0x08206EB8 (4 bytes), script=/home/zworg/htdocs/test.html zend_variables.c(120) : Actual location (location was relayed) and Program received signal SIGSEGV, Segmentation fault. 0x80b292d in _mem_block_check () (gdb) bt #0 0x80b292d in _mem_block_check () #1 0x80b2337 in _efree () #2 0x80bb221 in _zval_dtor () #3 0x80b7be5 in destroy_op_array () #4 0x80b7ae8 in destroy_zend_function () #5 0x80be39e in zend_hash_destroy () #6 0x80b7b59 in destroy_zend_class () #7 0x80be2ca in zend_hash_del_key_or_index () #8 0x80be577 in zend_hash_apply () #9 0x80b2e9e in shutdown_compiler () #10 0x80bbb61 in zend_deactivate () #11 0x807c6a0 in php_request_shutdown () #12 0x80c8b90 in ap_run_cleanup () #13 0x80c78c7 in ap_clear_pool () #14 0x80c791e in ap_destroy_pool () #15 0x80c78b5 in ap_clear_pool () #16 0x80d243e in ap_child_terminate () #17 0x80d296f in ap_child_terminate () #18 0x80d2a6c in ap_child_terminate () #19 0x80d2f16 in ap_child_terminate () #20 0x80d35e1 in main () (gdb) I included the main library file in a test file and got the crash again, but as I was removing code to try and narrow it down it just started to crash less often ( needed a few requests to get it to crash ). Tom