Arch Linux User Repository

The cgrules service is failing to start for me on reboot once it's been enabled. The error in the systemctl status cgrules.service log is:

cgrulesengd[399]: Error binding UNIX socket /var/run/cgred.socket: No such file or directory

It seems the problem is that I have /var on a separate partition, and the /var filesystem is not mounted at the time the cgrules service runs. This is because the cgrules.service unit file specifies DefaultDependencies=no and Before=basic.target, but basic.target is the target that mounts /var.

Note that /var/run is symlinked to /run on Arch, and /run is apparently mounted very early in the boot process, so the simplest fix is to pass --enable-cgred-socket=/run/cgred.socket to the configure script. The following patch worked for me:

diff -x '*.xz' -u libcgroup/PKGBUILD libcgroup.new/PKGBUILD
--- libcgroup/PKGBUILD  2015-06-30 06:39:06.000000000 -0500
+++ libcgroup.new/PKGBUILD      2019-02-21 15:49:02.660230586 -0600
@@ -28,6 +28,7 @@
                --sysconfdir=/etc \
                --localstatedir=/var \
                --sbindir=/usr/bin \
+               --enable-cgred-socket=/run/cgred.socket \
                --enable-opaque-hierarchy=name=systemd

        make

Alternatively, if you're ok with running cgrules.service after basic.target, the following patch also works. The idea is to just let systemd add a default dependency on sysinit.target and an After=basic.target, which ensures that /var is mounted by the time cgrules.service runs. It might also make sense to apply a similar change to cgconfig.service, but that is not required.

https://www.freedesktop.org/software/systemd/man/systemd.service.html#Default%20Dependencies

diff -x '*.xz' -u libcgroup/cgrules.service libcgroup.new/cgrules.service
--- libcgroup/cgrules.service   2015-06-30 06:39:06.000000000 -0500
+++ libcgroup.new/cgrules.service   2019-02-21 13:11:17.682489779 -0600
@@ -1,11 +1,6 @@
 [Unit]
 Description=Control Group rules service

-# The service should be able to start as soon as possible,
-# before any 'normal' services:
-DefaultDependencies=no
-Conflicts=shutdown.target
-Before=basic.target shutdown.target
 After=cgconfig.service

 [Service]
diff -x '*.xz' -u libcgroup/PKGBUILD libcgroup.new/PKGBUILD
--- libcgroup/PKGBUILD  2015-06-30 06:39:06.000000000 -0500
+++ libcgroup.new/PKGBUILD  2019-02-21 14:23:46.900014839 -0600
@@ -18,7 +18,7 @@
    'cgrules.service')
 sha256sums=('e4e38bdc7ef70645ce33740ddcca051248d56b53283c0dc6d404e17706f6fb51'
             '808fc354abf36d7b6673dad790be275309ac57a2606d1be3732b9b3aeb5885eb'
-            '6b1340ff6717f55e5e57dacc72accc0bfaed7e50ef31439271b6ddc893cbf671')
+            '1186ecb5647b26788edcd0b9e782ae6fa783399547773363818e07c21cbbabbf')

 build() {
    cd "${srcdir}/${pkgname}-${pkgver/rc/.rc}"

I'm seeing the following error on install (using yaourt -S):

groupadd: cannot open /etc/gshadow
groupadd: failed to unlock /etc/gshadow
error: command failed to execute correctly
:: Running post-transaction hooks...
(1/3) Reloading system manager configuration...
(2/3) Arming ConditionNeedsUpdate...
(3/3) etckeeper: post-transaction commit
No database errors have been found!

hi,cgroup do not working.why?

cgconfig.conf: mount { cpu = /cgroup/cpu }

● cgconfig.service - Control Group configuration service Loaded: loaded (/usr/lib/systemd/system/cgconfig.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since Wed 2018-03-21 06:33:52 UTC; 5s ago Process: 12761 ExecStop=/usr/sbin/cgclear -l /etc/cgconfig.conf -L /etc/cgconfig.d -e (code=exited, status=0/SUCCESS) Process: 12794 ExecStart=/usr/sbin/cgconfigparser -l /etc/cgconfig.conf -L /etc/cgconfig.d -s 1664 (code=exited, status=101) Main PID: 12794 (code=exited, status=101)

Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal systemd[1]: Starting Control Group configuration service... Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal systemd[1]: cgconfig.service: main process exited, code=exited, status=101/n/a Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal systemd[1]: Failed to start Control Group configuration service. Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal cgconfigparser[12794]: /usr/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal cgconfigparser[12794]: Error: cannot mount cpu to /cgroup/cpu: Permission denied Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal systemd[1]: Unit cgconfig.service entered failed state. Mar 21 06:33:52 ip-172-31-25-183.us-east-2.compute.internal systemd[1]: cgconfig.service failed.

I think it need a cgrules.socket to start correctly. $ diff -U1 cgrules.service{.org,} --- cgrules.service.org 2014-03-25 20:07:42.000000000 +0100 +++ cgrules.service 2014-03-25 20:10:22.000000000 +0100 @@ -2,2 +2,3 @@ Description=Control Group rules service +Requires=cgrules.socket @@ -16 +17,2 @@ WantedBy=sysinit.target +Also=cgrules.socket $ cat cgrules.socket [Unit] Description=Control Group Rules Daemon Listen Socket [Socket] ListenStream=/var/run/cgred.socket [Install] WantedBy=sockets.target

flex and bison belong to base-devel and are expected to be installed.

Please add makedepends=('flex' 'bison') to the PKGBUILD.

flex seems to to be a necessary make dependency

You should try to get your changes upstream. ;) PKGBUILD is updated, have fun!

please update cgrules.service. New revision of it is available here: https://gist.github.com/mamciek/5539646 Current revision contains an error.

Please include systemd service to start cgrulesengd. I have created one here: https://gist.github.com/mamciek/5539646