smtpd[68513]: warn: lost processor: spamassassin exited abnormally

Hi folks,

since OpenBSD 7.4 the spamassassin filter seems to be broken. On
the first EMail opensmtpd dies with a message in maillog saying

Nov 5 08:59:23 mhost smtpd[60460]: bcc4f33a095bb28e smtp connected address=xx.xx.xx.xx host=mail.example.com
Nov 5 08:59:23 mhost filter-spamassassin[7782]: bcc4f33a095bb28e protocol report 0.7
Nov 5 08:59:23 mhost filter-spamassassin[7782]: exit
Nov 5 08:59:23 mhost smtpd[68513]: warn: lost processor: spamassassin exited abnormally
Nov 5 08:59:23 mhost smtpd[68513]: Exiting


smtpd is configured according to /usr/local/share/doc/pkg-readmes/\
opensmtpd-filter-spamassassin (except for the tls option):

xname = "mailhost.example.de"
pki $xname cert "/etc/ssl/example.de/fullchain.pem"
pki $xname key "/etc/ssl/example.de/privkey.pem"
pki $xname dhe auto

filter "spamassassin" proc-exec "filter-spamassassin"

listen on all tls pki $xname filter "spamassassin"
listen on socket filter "spamassassin"
:
:

If I kick out the tls stuff, it is still broken.

Can anybody reproduce this? Every helpful hint is highly
appreciated.


Harri