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Problem is that this hunk
diff --git a/src/shared/cgroup-util.h b/src/shared/cgroup-util.h
index 96a3d3baf..31bd8d311 100644
--- a/src/shared/cgroup-util.h
+++ b/src/shared/cgroup-util.h
@@ -35,6 +35,7 @@ typedef enum CGroupControllerMask {
         CGROUP_BLKIO = 4,
         CGROUP_MEMORY = 8,
         CGROUP_DEVICE = 16,
+        CGROUP_PIDS = 32,
         _CGROUP_CONTROLLER_MASK_ALL = 31
 } CGroupControllerMask;
 

Added a CGROUP_PIDS but did not bump _CGROUP_CONTROLLER_MASK_ALL.
This cause issues for example for OpenStack.

https://bugzilla.redhat.com/show_bug.cgi?id=1523043
https://github.com/lnykryn/systemd-rhel/issues/180

fix merged to staging branch -> https://github.com/lnykryn/systemd-rhel/pull/181 -> post

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0711

*** Bug 1539024 has been marked as a duplicate of this bug. ***

Dropping the stale needinfo. If our input is still needed, please set the needinfo again.