My apache2 version:
Server version: Apache/2.4.18 (Ubuntu) Server built: 2020-08-12T21:35:50
My php version:
PHP 7.3.7-1+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Jul 10 2019 06:54:26) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.3.7, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.3.7-1+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies
My os version:
Distributor ID: Ubuntu Description: Ubuntu 16.04.6 LTS Release: 16.04 Codename: xenial
Hi, from last 2-3 months i have a lot of these segmentations(2-3 times per week);
[Wed Mar 09 10:47:12.150226 2022] [core:notice] [pid 21823] AH00051: child pid 22481 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Wed Mar 09 10:47:17.155792 2022] [core:notice] [pid 21823] AH00051: child pid 21895 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Wed Mar 09 10:47:24.163536 2022] [core:notice] [pid 21823] AH00051: child pid 22189 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Wed Mar 09 10:47:24.163618 2022] [core:notice] [pid 21823] AH00051: child pid 22562 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Wed Mar 09 10:47:25.164759 2022] [core:notice] [pid 21823] AH00051: child pid 22491 exit
...............
Every site on the server has an error with: "Secure Connection Failed" or "The Connection was reset"
After I restart apache2 everything is ok.
Before this error.. I had a lot of errors (that I do not remember the exact log messages) ... the apache2 requested to increase the number of servers/workers, so the only I made some modifications
/etc/apache2/mods-available/mpm_prefork.conf
<IfModule mpm_prefork_module> ServerLimit 4000 StartServers 905 MinSpareServers 405 MaxSpareServers 420 MaxRequestWorkers 2000 MaxConnectionsPerChild 0 </IfModule>
Today with some tutorial and with the help of gdb... I did get some output of a segmentated apache2 process:
#0 0xb6324467 in ?? () from /usr/lib/php/20180731/opcache.so No symbol table info available. #1 0xb6322eac in ?? () from /usr/lib/php/20180731/opcache.so No symbol table info available. #2 0xb716baba in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #3 0xb71a4b92 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #4 0xb71adaf3 in execute_ex () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #5 0xb71112cd in zend_call_function () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #6 0xb6fbffbf in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #7 0xb6fc1345 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #8 0xb6fc154a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #9 0xb6fc1b2a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #10 0xb71a9f11 in execute_ex () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #11 0xb71112cd in zend_call_function () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #12 0xb6fbffbf in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #13 0xb6fc1345 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #14 0xb6fc154a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #15 0xb6fc1b2a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #16 0xb71a9f11 in execute_ex () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #17 0xb71112cd in zend_call_function () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #18 0xb6fbffbf in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #19 0xb6fc1345 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #20 0xb6fc154a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #21 0xb6fc1b2a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #22 0xb71a9f11 in execute_ex () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #23 0xb71112cd in zend_call_function () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #24 0xb6fbffbf in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #25 0xb6fc1345 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #26 0xb6fc154a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #27 0xb6fc1b2a in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #28 0xb71a9f11 in execute_ex () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #29 0xb71b22e4 in zend_execute () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #30 0xb711f5cd in zend_execute_scripts () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #31 0xb70bd52c in php_execute_script () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #32 0xb71b4729 in ?? () from /usr/lib/apache2/modules/libphp7.3.so No symbol table info available. #33 0x00545f27 in ap_run_handler (r=0xb0611058) at config.c:169 pHook = <optimized out> n = 3 rv = -1 #34 0x0054649f in ap_invoke_handler (r=0xb0611058) at config.c:433 handler = <optimized out> p = <optimized out> result = <optimized out> old_handler = 0xb48f4258 "application/x-httpd-php" ignore = <optimized out> #35 0x0055d5ff in ap_process_async_request (r=0xb0611058) at http_request.c:410 c = 0xb62f31f0 access_status = 0 #36 0x0055d7af in ap_process_request (r=0xb0611058) at http_request.c:445 bb = <optimized out> b = <optimized out> c = 0xb62f31f0 rv = <optimized out> #37 0x0055989f in ap_process_http_sync_connection (c=0xb62f31f0) at http_core.c:210 keep_alive_timeout = 5000000 r = 0xb0611058 csd = 0x0 mpm_state = 0 #38 ap_process_http_connection (c=0xb62f31f0) at http_core.c:251 No locals. #39 0x0054fd17 in ap_run_process_connection (c=0xb62f31f0) at connection.c:41 pHook = <optimized out> n = 1 rv = -1 #40 0x00550183 in ap_process_connection (c=0xb62f31f0, csd=0xb62f3058) at connection.c:213 rc = <optimized out> #41 0xb732ca8f in child_main (child_num_arg=child_num_arg@entry=649, child_bucket=child_bucket@entry=0) at prefork.c:723 current_conn = 0xb62f31f0 csd = 0xb62f3058 thd = 0xb6eff058 osthd = 3074316032 ptrans = 0xb62f3018 allocator = 0x1b435d0 status = <optimized out> i = <optimized out> lr = <optimized out> pollset = 0xb6eff0c8 sbh = 0xb6eff0c0 bucket_alloc = 0xb6200018 last_poll_idx = 1 lockfile = <optimized out> #42 0xb732ccd3 in make_child (s=<optimized out>, slot=slot@entry=649) at prefork.c:825 bucket = 0 pid = <optimized out> #43 0xb732cd47 in startup_children (number_to_start=256, number_to_start@entry=905) at prefork.c:843 i = 649 #44 0xb732dced in prefork_run (_pconf=0xb76fe018, plog=0xb73bf018, s=0xb73c3f18) at prefork.c:1006 index = <optimized out> remaining_children_to_start = 905 i = <optimized out> #45 0x0052826f in ap_run_mpm (pconf=0xb76fe018, plog=0xb73bf018, s=0xb73c3f18) at mpm_common.c:94 pHook = <optimized out> n = 0 rv = -1 #46 0x00520da3 in main (argc=3, argv=0xbfa0f494) at main.c:777 c = 0 '\000' showcompile = <optimized out> showdirectives = <optimized out> confname = <optimized out> def_server_root = <optimized out> temp_error_log = <optimized out> error = <optimized out> process = 0xb76fe018 pconf = <optimized out> plog = 0xb73bf018 ptemp = 0xb73c1018 pcommands = 0xb73c5018 opt = 0xb73c50b8 rv = <optimized out> mod = <optimized out> opt_arg = 0x4fd034 "\006" signal_server = <optimized out>
P.S Sorry for my english.
--
Ivan Ionuț
Str. Săliște 20, Galati 800023
Tel/Fax: +40236 493277
Email: ivan.ionut@xxxxxxxxxxxxxx
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