systemd: disable journald completely

* mask journald.service and socket in postinst
* change syslog.socket to observe /dev/log
* bump PRINC to 17

recipes-fixes/systemd/systemd/0001-Feature-switch-ListenDatagram-from-run-systemd-journ.patch

@@ -0,0 +1,28 @@
+From 3b23969111d548addd80710defc65b0430e697b1 Mon Sep 17 00:00:00 2001
+From: Henning Heinold <henning@itconsulting-heinold.de>
+Date: Tue, 7 Jan 2014 18:26:47 +0100
+Subject: [PATCH] [Feature]: switch ListenDatagram from
+ run/systemd/journal/syslog to /dev/log
+
+---
+ units/syslog.socket |    4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/units/syslog.socket b/units/syslog.socket
+index e6e9cf8..d233380 100644
+--- a/units/syslog.socket
++++ b/units/syslog.socket
+@@ -16,7 +16,9 @@ Before=sockets.target shutdown.target
+ Conflicts=shutdown.target
+ 
+ [Socket]
+-ListenDatagram=/run/systemd/journal/syslog
++# sysmocom: we disabled journald completely, but we need one socket-service to listen on /dev/log for
++# automatic restart of the busybox-syslogd in error case
++ListenDatagram=/dev/log
+ SocketMode=0666
+ PassCredentials=yes
+ PassSecurity=yes
+-- 
+1.7.10.4
+

recipes-fixes/systemd/systemd_sysmocom.inc

@@ -1,9 +1,11 @@
 S_THISDIR := "${@os.path.dirname(bb.data.getVar('FILE', d, True))}"
 FILESPATH =. "${@base_set_filespath(["${S_THISDIR}/${PN}"], d)}:"
 
-PRINC="16"
+PRINC="17"
 
-SRC_URI += "file://journald.conf"
+SRC_URI += "file://journald.conf \
+            file://0001-Feature-switch-ListenDatagram-from-run-systemd-journ.patch \
+           "
 
 SRC_URI_append_sysmobts-v1 = " file://system.conf"
 SRC_URI_append_sysmobts-v2 = " file://system.conf"
@@ -33,6 +35,10 @@ pkg_postinst_${PN}_append () {
                         echo -n "$i: " ; systemctl ${OPTS} mask $i.service
                 fi
         done ; echo
+
+        # disable journald because its using to much cpu under stress logging
+        systemctl ${OPTS} mask systemd-journald.socket
+        systemctl ${OPTS} mask systemd-journald.service
 }
 
 do_install_append() {