After some further investigation I found out that it was bcmath causing this.
Here's my config.nice:
#! /bin/sh
#
# Created by configure
'./configure' \
'--disable-all' \
'--prefix=/usr/local/www/php4' \
'--with-apxs2=/usr/local/www/httpd2test/bin/apxs' \
'--enable-debug' \
'--enable-experimental-zts' \
'--enable-session' \
'--enable-bcmath' \
"$@"
Reproduce script: <?php session_start(); ?>
This was with current head of both PHP and Apache2 (worker).
On Wed, 13 Nov 2002 18:58:08 +0100
Magnus Määttä <[EMAIL PROTECTED]> wrote:
> Hi!
>
> With only one connection to the page i get no segfault, but with 2 or more i get it.
> Made a benchmark on the page with ab and not a single segfault on 10,000 requests.
> Got it twice with 2 connections and 37 times with 50 connections. After that all
> apache child processes had died.
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 524321 (LWP 29953)]
> 0x4055a816 in shutdown_memory_manager (silent=0, clean_cache=0, tsrm_ls=0x41b01b50)
>at /mnt/data1/Apps/CVS/PHP/php4/Zend/zend_alloc.c:461
> 461 REMOVE_POINTER_FROM_LIST(ptr);
> (gdb) bt
> #0 0x4055a816 in shutdown_memory_manager (silent=0, clean_cache=0,
>tsrm_ls=0x41b01b50) at /mnt/data1/Apps/CVS/PHP/php4/Zend/zend_alloc.c:461
> #1 0x4053aa8e in php_request_shutdown (dummy=0x0) at
>/mnt/data1/Apps/CVS/PHP/php4/main/main.c:933
> #2 0x4058a2be in php_apache_request_dtor (f=0x410e58d0, tsrm_ls=0x41b01b50) at
> /mnt/data1/Apps/CVS/PHP/php4/sapi/apache2filter/sapi_apache2.c:380
> #3 0x4058a531 in php_output_filter (f=0x410e58d0, bb=0x42114e78) at
>/mnt/data1/Apps/CVS/PHP/php4/sapi/apache2filter/sapi_apache2.c:469
> #4 0x080ba569 in ap_pass_brigade (next=0x410e58d0, bb=0x410e5a10) at
>util_filter.c:540
> #5 0x080c0a99 in default_handler (r=0x410e4000) at core.c:3383
> #6 0x080af9b9 in ap_run_handler (r=0x410e4000) at config.c:194
> #7 0x080aff03 in ap_invoke_handler (r=0x410e4000) at config.c:401
> #8 0x08086026 in ap_process_request (r=0x410e4000) at http_request.c:288
> #9 0x080820fa in ap_process_http_connection (c=0x410e20d8) at http_core.c:293
> #10 0x080b88f8 in ap_run_process_connection (c=0x410e20d8) at connection.c:85
> #11 0x080b8b8f in ap_process_connection (c=0x410e20d8, csd=0x410e1ff8) at
>connection.c:207
> #12 0x080acc4b in process_socket (p=0x410e1fc0, sock=0x410e1ff8, my_child_num=0,
>my_thread_num=30, bucket_alloc=0x831d688) at worker.c:632
> #13 0x080ad257 in worker_thread (thd=0x8167a28, dummy=0x82d22c8) at worker.c:947
> #14 0x401f89fe in dummy_worker (opaque=0x8167a28) at thread.c:127
> #15 0x4026d048 in pthread_start_thread () from /lib/libpthread.so.0
> #16 0x4026d08e in pthread_start_thread_event () from /lib/libpthread.so.0
> (gdb) frame 0
> #0 0x4055a816 in shutdown_memory_manager (silent=0, clean_cache=0,
>tsrm_ls=0x41b01b50) at /mnt/data1/Apps/CVS/PHP/php4/Zend/zend_alloc.c:461
> 461 REMOVE_POINTER_FROM_LIST(ptr);
> (gdb) p ptr
> $4 = (zend_mem_header *) 0x412838e0
> (gdb) bt full
> #0 0x4055a816 in shutdown_memory_manager (silent=0, clean_cache=0,
>tsrm_ls=0x41b01b50) at /mnt/data1/Apps/CVS/PHP/php4/Zend/zend_alloc.c:461
> i = 1
> j = 27
> ptr = (zend_mem_header *) 0x412838e0
> p = (zend_mem_header *) 0x1b
> t = (zend_mem_header *) 0x40618de8
> #1 0x4053aa8e in php_request_shutdown (dummy=0x0) at
>/mnt/data1/Apps/CVS/PHP/php4/main/main.c:933
> orig_bailout = {{__jmpbuf = {0, 0, 0, 0, 0, 0}, __mask_was_saved = 0,
>__saved_mask = {__val = {0 <repeats 32 times>}}}}
> orig_bailout_set = 0 '\0'
> tsrm_ls = (void ***) 0x41b01b50
> #2 0x4058a2be in php_apache_request_dtor (f=0x410e58d0, tsrm_ls=0x41b01b50) at
> /mnt/data1/Apps/CVS/PHP/php4/sapi/apache2filter/sapi_apache2.c:380
> tsrm_ls = (void ***) 0x41b01b50
> #3 0x4058a531 in php_output_filter (f=0x410e58d0, bb=0x42114e78) at
>/mnt/data1/Apps/CVS/PHP/php4/sapi/apache2filter/sapi_apache2.c:469
> path = 0x410e5980 "/usr/local/www/httpd2/htdocs/home/top.php"
> prebb = (apr_bucket_brigade *) 0x815c830
> zfd = {type = 2 '\002', filename = 0x410e5980
>"/usr/local/www/httpd2/htdocs/home/top.php",
> opened_path = 0x4222d788 'Z' <repeats 44 times>, "\204Ì\217*", handle = {fd =
>1109579712, fp = 0x4222d7c0}, free_filename = 0 '\0'}
> ctx = (php_struct *) 0x410e5378
> b = (apr_bucket *) 0x831d6a8
> conf = (void *) 0x814f300
> p = 0x815c830 "\030È\025\b"
> tsrm_ls = (void ***) 0x41b01b50
> #4 0x080ba569 in ap_pass_brigade (next=0x410e58d0, bb=0x410e5a10) at
>util_filter.c:540
> e = (apr_bucket *) 0x41283890
> next = (ap_filter_t *) 0x0
> bb = (apr_bucket_brigade *) 0x412838e0
> #5 0x080c0a99 in default_handler (r=0x410e4000) at core.c:3383
> c = (conn_rec *) 0x410e20d8
> bb = (apr_bucket_brigade *) 0x410e5a10
> e = (apr_bucket *) 0x831d838
> d = (core_dir_config *) 0x410e5778
> errstatus = 1091459604
> fd = (apr_file_t *) 0x410e5938
> status = 1093154960
> bld_content_md5 = 137484344
> #6 0x080af9b9 in ap_run_handler (r=0x410e4000) at config.c:194
> r = (request_rec *) 0x410e4000
> pHook = (ap_LINK_handler_t *) 0x41283890
> n = 11
> rv = 1093154960
> #7 0x080aff03 in ap_invoke_handler (r=0x410e4000) at config.c:401
> r = (request_rec *) 0x410e4000
> handler = 0x815c818 "application/x-httpd-php"
> p = 0x41283890 "Üw\202û`ïX@9"
> result = 0
> old_handler = 0x0
> #8 0x08086026 in ap_process_request (r=0x410e4000) at http_request.c:288
> r = (request_rec *) 0x410e4000
> access_status = 1093154960
> #9 0x080820fa in ap_process_http_connection (c=0x410e20d8) at http_core.c:293
> c = (conn_rec *) 0x410e20d8
> r = (request_rec *) 0x410e4000
> csd_set = 0
> csd = (apr_socket_t *) 0x0
> #10 0x080b88f8 in ap_run_process_connection (c=0x410e20d8) at connection.c:85
> c = (conn_rec *) 0x410e20d8
> pHook = (ap_LINK_process_connection_t *) 0x41283890
> n = 0
> rv = 1093154960
> #11 0x080b8b8f in ap_process_connection (c=0x410e20d8, csd=0x410e1ff8) at
>connection.c:207
> c = (conn_rec *) 0x410e20d8
> csd = (void *) 0x410e1ff8
> #12 0x080acc4b in process_socket (p=0x410e1fc0, sock=0x410e1ff8, my_child_num=0,
>my_thread_num=30, bucket_alloc=0x831d688) at worker.c:632
> p = (apr_pool_t *) 0x410e1fc0
> sock = (apr_socket_t *) 0x410e1ff8
> my_child_num = 1093155040
> my_thread_num = 0
> current_conn = (conn_rec *) 0x410e20d8
> conn_id = 1091444952
> csd = 37
> sbh = (ap_sb_handle_t *) 0x410e20d0
> #13 0x080ad257 in worker_thread (thd=0x8167a28, dummy=0x82d22c8) at worker.c:947
> dummy = (void *) 0x41283890
> process_slot = 0
> thread_slot = 30
> csd = (apr_socket_t *) 0x410e1ff8
> bucket_alloc = (apr_bucket_alloc_t *) 0x831d688
> last_ptrans = (apr_pool_t *) 0x0
> ptrans = (apr_pool_t *) 0x410e1fc0
> rv = 1093154960
> is_idle = 0
> #14 0x401f89fe in dummy_worker (opaque=0x8167a28) at thread.c:127
> opaque = (void *) 0x41283890
> #15 0x4026d048 in pthread_start_thread () from /lib/libpthread.so.0
> No symbol table info available.
> #16 0x4026d08e in pthread_start_thread_event () from /lib/libpthread.so.0
> No symbol table info available.
>
>
> Regards
> Magnus Määttä
>
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