Truncated or oversized response headers received from daemon process

centos7下的apache2.4.6运行openstack liberty dashboard访问正常，安全扫描apache2.4.6存在安全漏洞，将apache升级后，apache4.2.25+mod_wsgi4.3.2+python2.7.5 环境下运行dashboard后，logs/error_log错误日志会提示
Truncated or oversized response headers received from daemon process ‘dashboard':/usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi
以下是apache horizon的站点配置

WSGIDaemonProcess dashboard
WSGIProcessGroup dashboard
WSGISocketPrefix run/wsgi
WSGIScriptAlias /dashboard /usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi
Alias /dashboard/static /usr/share/openstack-dashboard/static
WSGIApplicationGroup %{GLOBAL}
<Directory /usr/share/openstack-dashboard/openstack_dashboard/wsgi>
Options All
AllowOverride All
Require all granted
</Directory>
<Directory /usr/share/openstack-dashboard/static>
Options All
AllowOverride All
Require all granted
</Directory>

Apache2.4.25服务能正常启动，可以看到it works页面，但是就是访问不了http://controller/dashboard页面，尝试了mod_wsgi好几个版本都是一样的错误，请大神们指教