Apache Child Pid Exit Signal Bus Error
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Post #1 of 4 (5376 views) Permalink Apache/2.2.22 - child pid exit signal bus error (10) exit signal Bus error (7) Hello, I'm fighting from few days with "signal Bus error(7)" on my Apache apache enablemmap off instance, and i can't figure out what is wrong and what thing is causing this error.. Thanks in advance for any suggestions what can be wrong! Details ======= OS: Debian 7.4 amd64 # apache2 -V Server
Signal Bus Error (7)
version: Apache/2.2.22 (Debian) Server built: Feb 1 2014 21:26:04 Server's Module Magic Number: 20051115:30 Server loaded: APR 1.4.6, APR-Util 1.4.1 Compiled using: APR 1.4.6, APR-Util 1.4.1 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/prefork" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=128 -D HTTPD_ROOT="/etc/apache2" -D SUEXEC_BIN="/usr/lib/apache2/suexec" -D DEFAULT_PIDLOG="/var/run/apache2.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="mime.types" -D SERVER_CONFIG_FILE="apache2.conf" Module enabled: LoadModule alias_module /usr/lib/apache2/modules/mod_alias.so LoadModule auth_basic_module /usr/lib/apache2/modules/mod_auth_basic.so LoadModule authn_file_module /usr/lib/apache2/modules/mod_authn_file.so LoadModule authz_default_module /usr/lib/apache2/modules/mod_authz_default.so LoadModule authz_groupfile_module /usr/lib/apache2/modules/mod_authz_groupfile.so LoadModule authz_host_module /usr/lib/apache2/modules/mod_authz_host.so LoadModule authz_user_module /usr/lib/apache2/modules/mod_authz_user.so LoadModule autoindex_module /usr/lib/apache2/modules/mod_autoindex.so LoadModule deflate_module /usr/lib/apach
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have apache bus error 7 Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only http://www.gossamer-threads.com/lists/apache/users/435414 takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Debugging apache2 errors: exit signal Bus error up vote 0 down vote favorite I'm hoping someone can help me debug my apache2 errors. For some reasons I'm getting a http://serverfault.com/questions/728093/debugging-apache2-errors-exit-signal-bus-error lot of errors lately on one of my systems: Sat Oct 10 16:49:24.101959 2015] [core:notice] [pid 18380] AH00051: child pid 2126 exit signal Bus error (7), possible coredump in /tmp/apache-coredumps [Sat Oct 10 16:50:35.178108 2015] [core:notice] [pid 18380] AH00051: child pid 1971 exit signal Bus error (7), possible coredump in /tmp/apache-coredumps [Sat Oct 10 16:50:43.188837 2015] [core:notice] [pid 18380] AH00051: child pid 2413 exit signal Bus error (7), possible coredump in /tmp/apache-coredumps I tried debugging with gdb, but I have no clue how to proceed after letting gdp loose on my coredump. This is the gdb output: GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
Modified: 2007-03-21 15:23 UTC From: pbugs at ausschlafen dot com Assigned: Status: Closed Package: APC (PECL) PHP Version: Irrelevant https://bugs.php.net/bug.php?id=57581 OS: Linux 2.4.16-64GB-SMP Private report: No CVE-ID: View Add Comment Developer https://discussions.apple.com/thread/889289?start=0&tstart=0 Edit [2007-03-19 13:17 UTC] pbugs at ausschlafen dot com Description: ------------ Hi, I tried to upgrade APC and php together. What I have is php 4.4.6 and APC 3.0.13, running under Apache 1.3.37. I took a sample of all unique GET URLs of my bus error live site and replayed them on the test server, so the test is not run in a high load environment. Nevertheless, sooner or later during the replay, apache childs crash with : [notice] child pid 30366 exit signal Bus error (7) As long as the APC console is working, it does not show any problem; signal bus error no fragmentation and the memory usage is not more than 50% of the 64 MB I assigned to APC. After the errors occur, the server is unstable. Static files can be served, but the APC console (and most - but not all- other php apps and scripts) don't work any more. The crashes do not always occur at the same step of the URL replay; in this respect I can not pinpoint a single script or application. However, multiple test runs repeatedly failed sooner or later. Apache has to be restarted then. Occasionally I see [apc-error] Cannot redeclare classes in the Apache error log when some wordpress blogs are accessed. The PHP error log remains empty (E_ALL), however. These happen to appear shortly before the "Bus errors", but I don't know whether there is a connection to the crash or not. My APC settings: configured with ./configure --enable-apc --enable-apc-mmap --with-apxs=... php.ini: extension="apc.so" apc.enabled=1 apc.shm_segments=1 apc.optimization=0 apc.shm_size=64 apc.ttl=7600 apc.user_ttl=3600 apc.gc_ttl=3600 apc.num_files_hint=1500 apc.user_entries_hint=100 apc.mmap_file_mask=/mnt/ramdisk/apc13.XXXXXX apc.enable_cli=0 ;apc.cache_by_
and earlier Please enter a title. You can not post a blank message. Please type your message and try again. This discussion is locked Anthony Fernandez Level 1 (10 points) Q: [notice] child pid 1256 exit signal Bus error (10) ???? Hi,I have something in my httpd error log,can someone explain what's that means ?[notice] child pid 1256 exit signal Bus error (10) iMac G5 20", Mac OS X (10.4.8) Posted on Mar 14, 2007 1:45 PM I have this question too Close Q: [notice] child pid 1256 exit signal Bus error (10) ???? All replies Helpful answers by Camelot, Camelot Mar 15, 2007 10:56 PM in response to Anthony Fernandez Level 8 (47,290 points) Mac OS X Mar 15, 2007 10:56 PM in response to Anthony Fernandez It means that the child process #1256 crashed while processing a request from a client.This is most often caused by a CGI or other script that's badly written. Apache, generally, is very stable, and problems like these almost always come down to plug-ins and scripts. The issue, of course, is determining the request that triggered the crash.If your machine isn't too busy, you might try to cross-reference the access and error logs to see if you can identify the request, either by timestamp, result code or similar. Once you find what's causing the crash you can take steps to fix it. Helpful (0) Reply options Link to this post This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use. Support Apple Support Communities Shop the Apple Online Store (1-800-MY-APPLE), visit an Apple Retail Store, or fi