Bug 65596 - Apache Hang after some time
Summary: Apache Hang after some time
Alias: None
Product: Apache httpd-2
Classification: Unclassified
Component: Core (show other bugs)
Version: 2.4.49
Hardware: PC Linux
: P2 critical (vote)
Target Milestone: ---
Assignee: Apache HTTPD Bugs Mailing List
Depends on:
Reported: 2021-09-27 08:01 UTC by pierre
Modified: 2021-09-29 07:54 UTC (History)
0 users


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Description pierre 2021-09-27 08:01:53 UTC
On all our servers (gentoo up to date, kernel 4.9.xxx ), apache 2.4.49 crash silently after some time  (many hours or few days, about 2 or 3 times per week on high traffic servers, less on medium traffic servers).
have to revert server version, no problem.
No error log at all, apache processes still up, but all http(s) requests timeout. No firewall.

Temp Fix : revert to 2.4.48

Same problem for many users on this forum :


Compilation flags :

[ebuild   R    ] www-servers/apache-2.4.48-r3:2::gentoo  USE="gdbm ldap (split-usr) ssl suexec suexec-caps threads -debug -doc (-selinux) -static -suexec-syslog" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_core authn_dbm authn_file authz_core authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex brotli cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers http2 include info log_config logio mime mime_magic negotiation proxy proxy_fcgi proxy_wstunnel rewrite setenvif socache_shmcb speling status unique_id unixd userdir usertrack vhost_alias -access_compat -asis -auth_digest -auth_form -authn_dbd -authn_socache -authz_dbd -cache_disk -cache_socache -cern_meta -charset_lite -dbd -dumpio -ident -imagemap -lbmethod_bybusyness -lbmethod_byrequests -lbmethod_bytraffic -lbmethod_heartbeat -log_forensic (-lua) -macro -md -proxy_ajp -proxy_balancer -proxy_connect -proxy_ftp -proxy_html -proxy_http -proxy_http2 -proxy_scgi -proxy_uwsgi -ratelimit -remoteip -reqtimeout -session -session_cookie -session_crypto -session_dbd -slotmem_shm -socache_memcache -substitute -version -watchdog -xml2enc" APACHE2_MPMS="event -prefork -worker" LUA_SINGLE_TARGET="lua5-1 -lua5-3 -lua5-4" 0 KiB
Comment 2 mathias 2021-09-28 17:53:34 UTC
I have the same issue:
Ubuntu 20.04.3 LTS

Also filed a Github issue for this for the ppa maintainer: https://github.com/oerdnj/deb.sury.org/issues/1646
Comment 3 Bernard Spil 2021-09-29 07:38:32 UTC
Also reported on FreeBSD, see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258767
Comment 4 pierre 2021-09-29 07:54:20 UTC
This version should be removed because of this critical bug.