The mailing list for listmasters using Sympa

[Harald Husemann <address@concealed>]

Hello list,

I have a Sympa installation on a Debian system running version 8 
(jessie) which was running fine, until the last OS update: I did a 
apt-get dist-upgrade as I did several times before, but this time, the 
web interface is no longer accessible after the update.

All I get is an internal server error, and the error log shows a problem 
with FCGI:

[Sun Oct 14 16:59:23.268982 2018] [fcgid:warn] [pid 20533] 
(104)Connection reset by peer: [client 188.109.120.202:58984] mod_fcgid: 
error reading data from FastCGI server, referer: 
https://lists.dark-hackers.de/
[Sun Oct 14 16:59:23.269217 2018] [core:error] [pid 20533] [client 
188.109.120.202:58984] End of script output before headers: 
wwsympa-wrapper.fcgi, referer: https://lists.dark-hackers.de/

I've googled a bit, but all I've found deals with the timing parameters 
for mod_fcgi, which are already set:

cat /etc/apache2/mods-enabled/fcgid.conf
<IfModule mod_fcgid.c>
  AddHandler    fcgid-script .fcgi
  FcgidConnectTimeout 20
  FcgidBusyTimeout 3600
  FcgidIOTimeout   3600
</IfModule>

I've also restarted php5-fpm and apache2 several times, but the error 
persists. I hope someone can point me in the right direction, I've also 
increased the log level of php5-fpm to "debug", but this just gives me 
many entries like this in /var/log/php5-fpm.log:

[14-Oct-2018 17:30:23.119783] DEBUG: pid 20483, 
fpm_pctl_perform_idle_server_maintenance(), line 379: [pool www] 
currently 0 active children, 2 spare children, 2 running children. 
Spawning rate 1


Many thanks in advance, and have a nice hackin',

Harald