Hi
I recently upgraded from PHP 5.2.3 to PHP 5.2.17.
After that, some of my pages keep failing with either Segfaults or calls to zend_mm_panic. My gdb backtrace shows:
(gdb) bt
#0 zend_mm_panic (message=0xb71fbda4 "zend_mm_heap corrupted") at /src/php-5.2.17/Zend/zend_alloc.c:92
#1 0xb70a1555 in zend_mm_remove_from_free_list (heap=0x80a61c8, mm_block=0x422d97a4) at /src/php-5.2.17/Zend/zend_alloc.c:838
#2 0xb70a0a21 in _zend_mm_free_int (heap=0x80a61c8, p=0x422d9964) at /src/php-5.2.17/Zend/zend_alloc.c:1984
#3 0xb70a0f8e in _efree (ptr=0x422d97d4) at /src/php-5.2.17/Zend/zend_alloc.c:2311
#4 0xb70a91c9 in free_zend_constant (c=0x82f8398) at /src/php-5.2.17/Zend/zend_variables.h:35
#5 0xb70bc4cc in zend_hash_apply_deleter (ht=0x80a6978, p=0x82f8358) at /src/php-5.2.17/Zend/zend_hash.c:611
#6 0xb70bc7ba in zend_hash_reverse_apply (ht=0x80a6978, apply_func=0xb70a922c <clean_non_persistent_constant>)
at /src/php-5.2.17/Zend/zend_hash.c:760
#7 0xb70a9523 in clean_non_persistent_constants () at /src/php-5.2.17/Zend/zend_constants.c:162
#8 0xb70aa1a5 in shutdown_executor () at /src/php-5.2.17/Zend/zend_execute_API.c:303
#9 0xb70b4a83 in zend_deactivate () at /src/php-5.2.17/Zend/zend.c:860
#10 0xb708102e in php_request_shutdown (dummy=0x0) at /src/php-5.2.17/main/main.c:1504
#11 0xb711106e in apache_php_module_main (r=0x828ce5c, display_source_mode=0) at /src/php-5.2.17/sapi/apache/sapi_apache.c:59
#12 0xb7111a5b in send_php (r=0x828ce5c, display_source_mode=0, filename=0x0) at /src/php-5.2.17/sapi/apache/mod_php5.c:666
#13 0xb7111b67 in send_parsed_php (r=0x828ce5c) at /src/php-5.2.17/sapi/apache/mod_php5.c:681
#14 0x08054aa4 in ap_invoke_handler ()
#15 0x0806a2db in process_request_internal ()
#16 0x0806a737 in ap_internal_redirect ()
#17 0x400a071f in mod_gzip_redir1_handler () from /adp/home/www_serv/libexec/mod_gzip.so
#18 0x4009eb06 in mod_gzip_handler () from /adp/home/www_serv/libexec/mod_gzip.so
#19 0x08054aa4 in ap_invoke_handler ()
#20 0x0806a2db in process_request_internal ()
#21 0x0806a33a in ap_process_request ()
#22 0x0806109c in child_main ()
#23 0x08061322 in make_child ()
#24 0x08061661 in perform_idle_server_maintenance ()
#25 0x08061c9a in standalone_main ()
#26 0x080622ba in main ()
Has anyone seen this before? Any assistance would be greatly appreciated. Note that disabling php_apc seems to make this go away -- on some systems.
Thanks in advance,
Bruce