14-CURRENT: www/nextcloud: php occ/web access : Segmentation fault

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Hello,

we ran into serious trouble here with an www/nextcloud installation on a recent 14-CURRENT
(FreeBSD 14.0-CURRENT #23 main-n247612-e6dd0e2e8d4: Mon Jun 28 18:08:20 CEST 2021 amd64).
Ports tree is up to date and ports are built via traditional "make". Port www/nextcloud, all
mod_ ports and even every php-* port (php74 is installed and default) has been recompiled
within the last two weeks via "portmaster -f".

The phenomenon occured back a couple of weeks, when access from the web via cjromoum and/or
firefox reported out of the sudden "Secure Connection Failed". I checked the Apache
2.4 server's certificate (self signed,never had been an issue so far), but there seems no
issue to exist.
It got very strange when I tried to perfom an upgrade and/or check via

cd /usr/local/www/nextcloud
su -m -c "/usr/local/bin/php ./occ upgrade"

Whenever I access occ, I receive an @"Segmentation fault".
The I checked the server's error log and I found for each access of the nextcloud instance an
entry like

[Tue Jun 01 06:04:40.667026 2021] [core:notice] [pid 81123:tid 34374492160] AH00052: child pid
24598 exit signal Segmentation fault (11)

Well, I'm out of ideas, it seems nextcloud, php or apache ar all in combination do have a
serious problem hard to come by with 14-CURRENT (another instance running on 12.2-RELENG
doesn't have any issues).

Can someone hint me to what to do track this nasty error?

Thanks in advance,

oh

- -- 
O. Hartmann

Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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