> Could you please try the just uploaded 1.7.1-3 to verify the fix for
> both bugs?

Verified: in 1.7.1-3 no segfault and no false "failed!" message 
from /etc/init.d/nfdump start.  Thank you!

On Wed, Jun 21, 2023 at 09:42:38PM +0200, Bernhard Schmidt wrote:
> On 19/06/23 05:25 PM, Yury Shevchuk wrote:
> 
> > # /usr/bin/nfcapd -D -P /var/run/nfcapd/default.pid -w /var/cache/nfdump 
> > -S1 -b 120.0.1 -p 2055 -R 127.0.0.2 2055
> > Segmentation fault
> > The patch (trivial) is attached.
> 
> Thanks. For the record, this is included in the much larger
> 
> https://github.com/phaag/nfdump/commit/abfab42419117add44e1ea15ad9559d265642219#diff-c95665baa1999e70e29344d1dc05f3282cd1cf7f31b47341581cd1cf81b7d062R593
> 
> in v1.7.2
> 
> > A minor change in /etc/init.d/nfdump conffile (added return 0) fixes false
> > "failed!" message from "/etc/init.d/nfdump start" which appears on systems
> > using sysvinit-core rather than systemd.
> 
> I really don't get what this code is supposed to do though. And I don't
> want to invest much time into sysvinit.  From my understanding
> 
>     start-stop-daemon --start --quiet \
>         --pidfile "$PIDFILE" --exec "$NFCAPD" --test > /dev/null \
>         || return 1
> 
> First we run with --test. If start-stop-daemon returns zero (process not
> already running) we continue, else we return 1. So far so good.
> 
>     start-stop-daemon --start --quiet \
>         --pidfile "$PIDFILE" \
>         --exec "$NFCAPD" -- \
>         -D -P "$PIDFILE" \
>         $options \
>         || return 2
> 
> Now we really start it. If we can do it we continue, if we can't we
> return 2 (could not be started)
> 
>     sleep 1
>     start-stop-daemon --start --quiet \
>         --pidfile "$PIDFILE" --exec "$NFCAPD" --test > /dev/null \
>         && return 2
> 
> Now we basically test again if the daemon is already running. If it
> isn't, we return 2, 
> 
> At this point we have checked that 1 second after the start the process
> is still running, and can return 0.
> 
> Could you please try the just uploaded 1.7.1-3 to verify the fix for
> both bugs?
> 
> Bernhard

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