After check_password is invoked, apache process is unable to terminate by SIGTERM.

[jun66j5]

After check_password is invoked, apache process is unable to terminate by SIGTERM (and is killed by SIGKILL). When check_password is not invoked, apache process is terminated by SIGTERM normally.

It occurs on mod-wsgi 5.0.0 and 5.0.1dev1 (develop branch) with Python 3.10.14.

error.log

[Thu Aug 08 21:37:54.433148 2024] [mpm_worker:notice] [pid 3304855:tid 140151734205504] AH00292: Apache/2.4.41 (Ubuntu) mod_wsgi/5.0.0 Python/3.10 SVN/1.13.0 configured -- resuming normal operations
[Thu Aug 08 21:37:54.433250 2024] [core:notice] [pid 3304855:tid 140151734205504] AH00094: Command line: '/usr/sbin/apache2 -D FOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf'
[Thu Aug 08 21:38:37.667061 2024] [core:warn] [pid 3304855:tid 140151734205504] AH00045: child process 3304858 still did not exit, sending a SIGTERM
[Thu Aug 08 21:38:39.669145 2024] [core:warn] [pid 3304855:tid 140151734205504] AH00045: child process 3304858 still did not exit, sending a SIGTERM
[Thu Aug 08 21:38:41.670293 2024] [core:warn] [pid 3304855:tid 140151734205504] AH00045: child process 3304858 still did not exit, sending a SIGTERM
[Thu Aug 08 21:38:43.672387 2024] [core:error] [pid 3304855:tid 140151734205504] AH00046: child process 3304858 still did not exit, sending a SIGKILL
[Thu Aug 08 21:38:44.673507 2024] [mpm_worker:notice] [pid 3304855:tid 140151734205504] AH00295: caught SIGTERM, shutting down

access.log

127.0.0.1 - jun66j5 [08/Aug/2024:21:38:01 +0900] "GET /svn/ HTTP/1.1" 200 535

ps xf

 651297 ?        S      0:34 sshd: jun66j5@pts/0
 651298 pts/0    Ss     0:04  \_ -bash
3304842 pts/0    S+     0:00      \_ /bin/sh /home/jun66j5/bin/trac.sh modwsgi /dev/shm/trac16 /dev/shm/tracenv
3304855 pts/0    S+     0:00          \_ /usr/sbin/apache2 -DFOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf
3304856 pts/0    Sl+    0:00              \_ (wsgi:trac)       -DFOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf
3304857 pts/0    Sl+    0:00              \_ (wsgi:trac)       -DFOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf
3304858 pts/0    Sl+    0:00              \_ /usr/sbin/apache2 -DFOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf
3304859 pts/0    Sl+    0:00              \_ /usr/sbin/apache2 -DFOREGROUND -f /home/jun66j5/src/trac/modwsgi.conf

Part of modwsgi.conf

<VirtualHost *:3000>
    ServerAdmin webmaster@localhost
    DocumentRoot ${_TMPDIR}/docroot

    SetEnv trac.env_parent_dir ${_TMPDIR}/trac
    WSGIDaemonProcess trac \
        python-home=${_VENVDIR} display-name=%{GROUP} \
        processes=2 threads=25 maximum-requests=128 inactivity-timeout=600
    WSGIScriptAlias / ${_TMPDIR}/trac.wsgi \
        process-group=trac application-group=%{GLOBAL}
    Alias /svn ${_TMPDIR}/svn

    <Location />
        AuthType Basic
        AuthBasicProvider wsgi
        WSGIAuthUserScript ${_TMPDIR}/auth.wsgi application-group=auth
        AuthName "auth"
        Require all granted
    </Location>
    <Location /*/login>
        Require valid-user
    </Location>
    <Location /*/login/*>
        Require valid-user
    </Location>
    <Location /svn>
        SVNAdvertiseV2Protocol On
        DAV svn
        SVNPath ${_TMPDIR}/svn
        AuthzSVNAnonymous On
        #AuthzSVNNoAuthWhenAnonymousAllowed On
        AuthzSVNAccessFile ${_PWD}svn-authz
        Satisfy Any
        Require valid-user
    </Location>
</VirtualHost>

auth.wsgi

def check_password(environ, user, password):
  return True