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Bug 1630378

Summary:	systemd: Failed at step CGROUP spawning /bin/umount: No such file or directory
Product:	Red Hat Enterprise Linux 7	Reporter:	Orion Poplawski <orion>
Component:	systemd	Assignee:	David Tardon <dtardon>
Status:	CLOSED ERRATA	QA Contact:	Frantisek Sumsal <fsumsal>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.6	CC:	apmukher, bruno.travouillon, dtardon, fsumsal, jsynacek, mbliss, mezhang, msekleta, redhat-bugzilla, systemd-maint-list, systemd-maint, yoguma
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	systemd-219-70.el7	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-31 20:02:09 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1716963, 1719445

Description Orion Poplawski 2018-09-18 13:26:15 UTC

Description of problem:

Seeing this more frequently now:

Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Stopping Local File Systems.
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounting /tmp...
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Stopped Configure read-only root support.
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Stopping Configure read-only root support...
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounting /run/user/0...
Sep 17 09:55:05 cscomp2.cora.nwra.com kernel: type=1131 audit(1537199705.310:4242): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=rh
el-readonly comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounting Configuration File System...
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[18916]: Failed at step CGROUP spawning /bin/umount: No such file or directory
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounting /scratch...
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounting /boot...
Sep 17 09:55:05 cscomp2.cora.nwra.com kernel: XFS (sda5): Unmounting Filesystem
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounted /tmp.
Sep 17 09:55:05 cscomp2.cora.nwra.com kernel: XFS (sda1): Unmounting Filesystem
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounted /run/user/0.
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: sys-kernel-config.mount mount process exited, code=exited status=219
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Failed unmounting Configuration File System.
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounted /scratch.
Sep 17 09:55:05 cscomp2.cora.nwra.com systemd[1]: Unmounted /boot.

Version-Release number of selected component (if applicable):
systemd-219-57.el7_5.1.x86_64

Comment 2 Orion Poplawski 2018-12-31 20:42:42 UTC

Still present with systemd-219-62.el7.x86_64 on certain systems.

Some perhaps notable differences between "systemctl show sys-kernel-config.mount" on EL7 and Fedora 28:

EL7:
MountFlags=0
Requires=-.mount
Wants=system.slice
Conflicts=umount.target
Before=local-fs.target sysinit.target
After=systemd-journald.socket system.slice -.mount systemd-modules-load.service

Fedora 28:
ForceUnmount=no
MountFlags=
Requires=-.mount system.slice
Before=sysinit.target
After=systemd-modules-load.service -.mount system.slice systemd-journald.socket
Perpetual=no
CollectMode=inactive

though there is no real difference between /lib/systemd/system/sys-kernel-config.mount on the systems.

Comment 8 Jan Synacek 2019-03-18 08:43:26 UTC

I can't reproduce this. Did you perhaps remove the configfs directory manually?

Comment 11 Orion Poplawski 2019-03-18 16:42:13 UTC

Haven't touched configfs as far as I know:

# mount | grep config
configfs on /sys/kernel/config type configfs (rw,relatime)
# ls /sys/kernel/config
rdma_cm/

Comment 42 David Tardon 2019-08-29 08:22:53 UTC

PR: https://github.com/systemd-rhel/rhel-7/pull/40

Comment 43 Lukáš Nykrýn 2019-09-05 13:16:33 UTC

fix merged to github master branch -> https://github.com/systemd-rhel/rhel-7/pull/40 -> post

Comment 47 errata-xmlrpc 2020-03-31 20:02:09 UTC

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-2020:1117