DragonFlyBSD

I guess you meant ls instead of ping.

Which file are you trying to rotate ? And what does "the only difference is `syslogd` is running under `svc`." ? Is svc a system user of some sort ?

Sorry, s/ping/pkill/: `pkill -1 -F /var/run/syslog.pid` is actually working.

`svc` is a /sbin/svc, we have it since 4.0, it can be used to automatically to set up/control/jail service. I'm using custom init, that can use svc/daemon/plain service startup.

Actually, sometimes I can even hit it from shell:

# pkill -1 -F /var/run/syslog.pid
pkill: signalling pid 1117: Operation not permitted
# kill -1 1117
1117: Operation not permitted

Actually this is totally an `svc` issue. Moving cron service under daemon fixes it. There are no extra isolation features enabled on the service, and yet it can't send any signals to anything outside service process group.