Thanks Michael, I will review your link
is that something new with redhat8/apache? I want to check what I have in place for my redhat 7 machines and compare it with redhat 8 machine , but I would expect that apache config was not changed during the migration Any other thoughts? From: Michael Kondratov [mailto:mich...@aspireauctions.com] Sent: Wednesday, February 1, 2023 12:16 AM To: Khodor Barakat <khod...@portfolioaid.com> Cc: Webobjects-dev@lists.apple.com Subject: Re: Having problem with mod_WebObjects.so under redhat 8 Please see https://httpd.apache.org/docs/2.4/mod/prefork.html You are running Worker MPM (multi threaded mode). It is not compatible with WO Adapter. Michael On Feb 1, 2023, at 12:13 AM, Khodor Barakat <khod...@portfolioaid.com<mailto:khod...@portfolioaid.com>> wrote: I don’t see that module in my loaded modules nor on the system under /etc/httpd/modules if this is not what you are asking how do I check that ?? my problem started after I did in place upgrade from redhat 7 to redhat 8, I still have some systems running redhat7 and WO setup is working fine httpd -M Loaded Modules: core_module (static) so_module (static) http_module (static) access_compat_module (shared) actions_module (shared) alias_module (shared) allowmethods_module (shared) auth_basic_module (shared) auth_digest_module (shared) authn_anon_module (shared) authn_core_module (shared) authn_dbd_module (shared) authn_dbm_module (shared) authn_file_module (shared) authn_socache_module (shared) authz_core_module (shared) authz_dbd_module (shared) authz_dbm_module (shared) authz_groupfile_module (shared) authz_host_module (shared) authz_owner_module (shared) authz_user_module (shared) autoindex_module (shared) brotli_module (shared) cache_module (shared) cache_disk_module (shared) cache_socache_module (shared) data_module (shared) dbd_module (shared) deflate_module (shared) dir_module (shared) dumpio_module (shared) echo_module (shared) env_module (shared) expires_module (shared) ext_filter_module (shared) filter_module (shared) headers_module (shared) include_module (shared) info_module (shared) log_config_module (shared) logio_module (shared) macro_module (shared) mime_magic_module (shared) mime_module (shared) negotiation_module (shared) remoteip_module (shared) reqtimeout_module (shared) request_module (shared) rewrite_module (shared) setenvif_module (shared) slotmem_plain_module (shared) slotmem_shm_module (shared) socache_dbm_module (shared) socache_memcache_module (shared) socache_shmcb_module (shared) status_module (shared) substitute_module (shared) suexec_module (shared) unique_id_module (shared) unixd_module (shared) userdir_module (shared) version_module (shared) vhost_alias_module (shared) watchdog_module (shared) dav_module (shared) dav_fs_module (shared) dav_lock_module (shared) lua_module (shared) mpm_event_module (shared) proxy_module (shared) lbmethod_bybusyness_module (shared) lbmethod_byrequests_module (shared) lbmethod_bytraffic_module (shared) lbmethod_heartbeat_module (shared) proxy_ajp_module (shared) proxy_balancer_module (shared) proxy_connect_module (shared) proxy_express_module (shared) proxy_fcgi_module (shared) proxy_fdpass_module (shared) proxy_ftp_module (shared) proxy_http_module (shared) proxy_hcheck_module (shared) proxy_scgi_module (shared) proxy_uwsgi_module (shared) proxy_wstunnel_module (shared) ssl_module (shared) systemd_module (shared) WebObjects_module (shared) cgid_module (shared) fcgid_module (shared) http2_module (shared) maxminddb_module (shared) proxy_http2_module (shared) From: Michael Kondratov [mailto:mich...@aspireauctions.com] Sent: Wednesday, February 1, 2023 12:09 AM To: Khodor Barakat <khod...@portfolioaid.com<mailto:khod...@portfolioaid.com>> Cc: Webobjects-dev@lists.apple.com<mailto:Webobjects-dev@lists.apple.com> Subject: Re: Having problem with mod_WebObjects.so under redhat 8 Importance: High Khodor, I’ve had apache crashes when it was running in multi threaded form. Are you using pre-fork module? Michael On Feb 1, 2023, at 12:06 AM, Khodor Barakat via Webobjects-dev <webobjects-dev@lists.apple.com<mailto:webobjects-dev@lists.apple.com>> wrote: I have migrated my system from redhat 7 to redhat 8 and I am having a problem with webobjects , after opening a ticket with redhat support , the support reported a back trace the is causing apache to hang and throw segmentation fault 11 [pid 37869:tid 140365337980352] AH00051: child pid 37874 exit signal Segmentation fault (11), possible coredump in /var/apache-dump redhat support mentioned that the issue is related to WO module mod_WebObjects.so, did anyone have this issue before , { "signal": 11 , "executable": "/usr/sbin/httpd" , "stacktrace": [ { "crash_thread": true , "frames": [ { "address": 140365077741264 , "build_id": "a77df8e8eef4029a804d7b883776cc12618b3541" , "build_id_offset": 44752 , "function_name": "WOShmem_lock" , "file_name": "/etc/httpd/modules/mod_WebObjects.so" } , { "address": 140365077743499 , "build_id": "a77df8e8eef4029a804d7b883776cc12618b3541" , "build_id_offset": 46987 , "function_name": "sha_lock" , "file_name": "/etc/httpd/modules/mod_WebObjects.so" } , { "address": 140365077765643 , "build_id": "a77df8e8eef4029a804d7b883776cc12618b3541" , "build_id_offset": 69131 , "function_name": "ac_findInstance" , "file_name": "/etc/httpd/modules/mod_WebObjects.so" } , { "address": 140365077732822 , "build_id": "a77df8e8eef4029a804d7b883776cc12618b3541" , "build_id_offset": 36310 , "function_name": "tr_handleRequest" , "file_name": "/etc/httpd/modules/mod_WebObjects.so" } , { "address": 140365077783061 , "build_id": "a77df8e8eef4029a804d7b883776cc12618b3541" , "build_id_offset": 86549 , "function_name": "WebObjects_handler" , "file_name": "/etc/httpd/modules/mod_WebObjects.so" } , { "address": 94650830766376 , "build_id": "4f04e7d6189e2c9aa5c51e159c08329a7b3078e3" , "build_id_offset": 299304 , "function_name": "ap_run_handler" , "file_name": "/usr/sbin/httpd" } , { "address": 94650830767846 , "build_id": "4f04e7d6189e2c9aa5c51e159c08329a7b3078e3" , "build_id_offset": 300774 I am on redhat 8.7 Apache/2.4.37 (Red Hat Enterprise Linux) woadaptor : woadaptor-httpd24-6-1.x86_64 mod_WebObjects.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=a77df8e8eef4029a804d7b883776cc12618b3541, with debug_info, not stripped any help is highly appreciated Thanks, _______________________________________________ Do not post admin requests to the list. 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