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test-execute.c:874:test_exec_dynamicuser: exec-dynamicuser-statedir.service: can_unshare=yes: exit status 1, expected 0 #23263

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mbiebl opened this issue May 4, 2022 · 8 comments · Fixed by #23343
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test-execute.c:874:test_exec_dynamicuser: exec-dynamicuser-statedir.service: can_unshare=yes: exit status 1, expected 0 #23263

mbiebl opened this issue May 4, 2022 · 8 comments · Fixed by #23343
Labels
lxc/lxd tests
Milestone
v251

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@mbiebl
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mbiebl commented May 4, 2022

Seen with v250 and latest git HEAD.

When running the unit-tests via LXC/autopkgtest I get the following failure in test-execute:

exec-dynamicuser-statedir.service: Child 6387 belongs to exec-dynamicuser-statedir.service.
exec-dynamicuser-statedir.service: Main process exited, code=exited, status=0/SUCCESS (success)
exec-dynamicuser-statedir.service: Running next main command for state start.
exec-dynamicuser-statedir.service: Will spawn child (service_run_next_main): sh
exec-dynamicuser-statedir.service: Passing 0 fds to service
exec-dynamicuser-statedir.service: About to execute sh -x -c "test \$\$(find / \\( -path /var/tmp -o -path /tmp -o -path /proc -o -path /dev/mqueue -o -path /dev/shm -o -path /sys/fs/bpf -o -path /dev/.lxc \\) -prune -o -type d -writable -print 2>/dev/null | sort -u | tr -d \"\\\\n\") = /var/lib/private/quux/pief/var/lib/private/waldo"
exec-dynamicuser-statedir.service: Forked sh as 6388
exec-dynamicuser-statedir.service: User lookup succeeded: uid=65325 gid=65325
Received SIGCHLD from PID 6388 (sh).
Child 6388 (sh) died (code=exited, status=1/FAILURE)
exec-dynamicuser-statedir.service: Child 6388 belongs to exec-dynamicuser-statedir.service.
exec-dynamicuser-statedir.service: Main process exited, code=exited, status=1/FAILURE
exec-dynamicuser-statedir.service: Failed with result 'exit-code'.
exec-dynamicuser-statedir.service: Service will not restart (restart setting)
exec-dynamicuser-statedir.service: Changed start -> failed
exec-dynamicuser-statedir.service: Unit entered failed state.
Spawning thread to nuke /tmp/systemd-private-00dcaf0615b640509dbdecf874e9e22e-exec-dynamicuser-statedir.service-6LeDti
Spawning thread to nuke /var/tmp/systemd-private-00dcaf0615b640509dbdecf874e9e22e-exec-dynamicuser-statedir.service-kNixoB
UID 65325 is no longer referenced, cleaning up its IPC.
GID 65325 is no longer referenced, cleaning up its IPC.
Failed to connect to nscd socket: No such file or directory
Failed to connect to nscd socket: No such file or directory
no
	ProtectKernelModules: no
	ProtectKernelLogs: no
	ProtectClock: no
	ProtectControlGroups: no
	PrivateNetwork: no
	PrivateUsers: no
	ProtectHome: read-only
	ProtectSystem: strict
	MountAPIVFS: no
	IgnoreSIGPIPE: yes
	MemoryDenyWriteExecute: no
	RestrictRealtime: no
	RestrictSUIDSGID: yes
	KeyringMode: private
	ProtectHostname: no
	ProtectProc: default
	ProcSubset: all
	RuntimeDirectoryPreserve: no
	RuntimeDirectoryMode: 0755
	StateDirectoryMode: 0755
	CacheDirectoryMode: 0755
	LogsDirectoryMode: 0755
	ConfigurationDirectoryMode: 0755
	TimeoutCleanSec: infinity
	StandardInput: null
	StandardOutput: null
	StandardError: inherit
	User: games
	Group: games
	DynamicUser: yes
	LockPersonality: no
	SystemCallErrorNumber: kill
	PID: 6358
	Start Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Code: exited
	Exit Status: 0
exec-dynamicuser-fixeduser-one-supplementarygroup.service
	UMask: 0022
	WorkingDirectory: /
	RootDirectory: /
	NonBlocking: no
	PrivateTmp: yes
	PrivateDevices: no
	ProtectKernelTunables: no
	ProtectKernelModules: no
	ProtectKernelLogs: no
	ProtectClock: no
	ProtectControlGroups: no
	PrivateNetwork: no
	PrivateUsers: no
	ProtectHome: read-only
	ProtectSystem: strict
	MountAPIVFS: no
	IgnoreSIGPIPE: yes
	MemoryDenyWriteExecute: no
	RestrictRealtime: no
	RestrictSUIDSGID: yes
	KeyringMode: private
	ProtectHostname: no
	ProtectProc: default
	ProcSubset: all
	RuntimeDirectoryPreserve: no
	RuntimeDirectoryMode: 0755
	StateDirectoryMode: 0755
	CacheDirectoryMode: 0755
	LogsDirectoryMode: 0755
	ConfigurationDirectoryMode: 0755
	TimeoutCleanSec: infinity
	StandardInput: null
	StandardOutput: null
	StandardError: inherit
	User: 1
	Group: 1
	DynamicUser: yes
	SupplementaryGroups: 1
	LockPersonality: no
	SystemCallErrorNumber: kill
	PID: 6366
	Start Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Code: exited
	Exit Status: 0
exec-dynamicuser-supplementarygroups.service
	UMask: 0022
	WorkingDirectory: /
	RootDirectory: /
	NonBlocking: no
	PrivateTmp: yes
	PrivateDevices: no
	ProtectKernelTunables: no
	ProtectKernelModules: no
	ProtectKernelLogs: no
	ProtectClock: no
	ProtectControlGroups: no
	PrivateNetwork: no
	PrivateUsers: no
	ProtectHome: read-only
	ProtectSystem: strict
	MountAPIVFS: no
	IgnoreSIGPIPE: yes
	MemoryDenyWriteExecute: no
	RestrictRealtime: no
	RestrictSUIDSGID: yes
	KeyringMode: private
	ProtectHostname: no
	ProtectProc: default
	ProcSubset: all
	RuntimeDirectoryPreserve: no
	RuntimeDirectoryMode: 0755
	StateDirectoryMode: 0755
	CacheDirectoryMode: 0755
	LogsDirectoryMode: 0755
	ConfigurationDirectoryMode: 0755
	TimeoutCleanSec: infinity
	StandardInput: null
	StandardOutput: null
	StandardError: inherit
	User: _du340d985882767cff
	Group: _du340d985882767cff
	DynamicUser: yes
	SupplementaryGroups: 1 2 3
	LockPersonality: no
	SystemCallErrorNumber: kill
	PID: 6375
	Start Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Code: exited
	Exit Status: 0
exec-dynamicuser-statedir.service
	UMask: 0022
	WorkingDirectory: /
	RootDirectory: /
	NonBlocking: no
	PrivateTmp: yes
	PrivateDevices: no
	ProtectKernelTunables: no
	ProtectKernelModules: no
	ProtectKernelLogs: no
	ProtectClock: no
	ProtectControlGroups: no
	PrivateNetwork: no
	PrivateUsers: no
	ProtectHome: read-only
	ProtectSystem: strict
	MountAPIVFS: no
	IgnoreSIGPIPE: yes
	MemoryDenyWriteExecute: no
	RestrictRealtime: no
	RestrictSUIDSGID: yes
	KeyringMode: private
	ProtectHostname: no
	ProtectProc: default
	ProcSubset: all
	RuntimeDirectoryPreserve: no
	RuntimeDirectoryMode: 0755
	StateDirectoryMode: 0755
	StateDirectory: waldo
	StateDirectory: quux/pief
	CacheDirectoryMode: 0755
	LogsDirectoryMode: 0755
	ConfigurationDirectoryMode: 0755
	TimeoutCleanSec: infinity
	StandardInput: null
	StandardOutput: null
	StandardError: inherit
	User: exec-dynamicuser-statedir
	Group: exec-dynamicuser-statedir
	DynamicUser: yes
	LockPersonality: no
	SystemCallErrorNumber: kill
	PID: 6388
	Start Timestamp: Wed 2022-05-04 10:08:03 UTC
	Exit Timestampsrc/test/test-execute.c:874:test_exec_dynamicuser: exec-dynamicuser-statedir.service: can_unshare=yes: exit status 1, expected 0

Full log attached
I can not reproduce the failure with qemu as backend.

log.txt
@mbiebl mbiebl added the tests label May 4, 2022
@yuwata
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yuwata commented May 4, 2022

What's the result of the command find ... in that environment?

@yuwata yuwata added needs-reporter-feedback ❓ There's an unanswered question, the reporter needs to answer lxc/lxd labels May 4, 2022
@mbiebl
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mbiebl commented May 4, 2022 

Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /var/lib/private/quux/pief
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /var/lib/private/waldo
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/intel_pstate
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq/policy1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq/policy3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq/policy0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq/policy2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq/schedutil
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpufreq
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/vulnerabilities
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/microcode
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/power
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/hotplug
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpuidle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cache/index1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cache/index3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cache/index0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cache/index2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cache
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/topology
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/microcode
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/power
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/thermal_throttle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/hotplug
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state2/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state4/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state4
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state1/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state3/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state5/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle/state5
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3/cpuidle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cache/index1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cache/index3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cache/index0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cache/index2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cache
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/topology
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/microcode
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/power
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/thermal_throttle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/hotplug
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state2/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state4/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state4
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state1/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state3/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state5/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle/state5
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2/cpuidle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cache/index1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cache/index3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cache/index0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cache/index2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cache
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/topology
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/microcode
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/power
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/thermal_throttle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/hotplug
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state2/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state4/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state4
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state1/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state3/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state5/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle/state5
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1/cpuidle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cache/index1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cache/index3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cache/index0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cache/index2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cache
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/topology
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/microcode
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/power
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/thermal_throttle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/hotplug
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state2/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state2
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state4/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state4
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state1/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state1
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state3/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state3
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state5/s2idle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle/state5
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0/cpuidle
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu/cpu0
Mai 04 12:58:11 autopkgtest-lxc-bkkihu sh[8306]: /sys/devices/system/cpu
Mai 04 12:58:10 autopkgtest-lxc-bkkihu sh[8305]: + find / ( -path /var/tmp -o -path /tmp -o -path /proc -o -path /dev/mqueue -o -path /dev/shm -o -path /sys/fs/bpf -o -path /dev/.lxc ) -prune -o -type d -writable -print

@mbiebl
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mbiebl commented May 4, 2022 

# findmnt 
TARGET                                SOURCE                                                FSTYPE     OPTIONS
/                                     /dev/sda6[/var/lib/lxc/autopkgtest-lxc-bkkihu/rootfs] ext4       rw,relatime,errors=remount-ro
├─/run                                tmpfs                                                 tmpfs      rw,nosuid,nodev,size=3253420k,nr_inodes=819200,mode=755,inode64
│ └─/run/lock                         tmpfs                                                 tmpfs      rw,nosuid,nodev,noexec,relatime,size=5120k,inode64
├─/dev                                none                                                  tmpfs      rw,relatime,size=492k,mode=755,inode64
│ ├─/dev/shm                          tmpfs                                                 tmpfs      rw,nosuid,nodev,inode64
│ ├─/dev/hugepages                    hugetlbfs                                             hugetlbfs  rw,relatime,pagesize=2M
│ ├─/dev/mqueue                       mqueue                                                mqueue     rw,nosuid,nodev,noexec,relatime
│ ├─/dev/.lxc/proc                    proc                                                  proc       rw,relatime
│ ├─/dev/.lxc/sys                     sys                                                   sysfs      rw,relatime
│ ├─/dev/pts                          devpts                                                devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ ├─/dev/ptmx                         devpts[/ptmx]                                         devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ ├─/dev/console                      devpts[/0]                                            devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ ├─/dev/tty1                         devpts[/1]                                            devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ ├─/dev/tty2                         devpts[/2]                                            devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ ├─/dev/tty3                         devpts[/3]                                            devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
│ └─/dev/tty4                         devpts[/4]                                            devpts     rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666,max=1028
├─/proc                               proc                                                  proc       rw,nosuid,nodev,noexec,relatime
│ ├─/proc/sys                         proc[/sys]                                            proc       ro,relatime
│ │ ├─/proc/sys/kernel/random/boot_id none[/.lxc-boot-id]                                   tmpfs      ro,nosuid,nodev,noexec,relatime,size=492k,mode=755,inode64
│ │ └─/proc/sys/net                   proc[/sys/net]                                        proc       rw,nosuid,nodev,noexec,relatime
│ ├─/proc/sysrq-trigger               proc[/sysrq-trigger]                                  proc       ro,relatime
│ ├─/proc/cpuinfo                     lxcfs[/proc/cpuinfo]                                  fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/diskstats                   lxcfs[/proc/diskstats]                                fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/loadavg                     lxcfs[/proc/loadavg]                                  fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/meminfo                     lxcfs[/proc/meminfo]                                  fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/slabinfo                    lxcfs[/proc/slabinfo]                                 fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/stat                        lxcfs[/proc/stat]                                     fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ ├─/proc/swaps                       lxcfs[/proc/swaps]                                    fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
│ └─/proc/uptime                      lxcfs[/proc/uptime]                                   fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
├─/sys                                sysfs                                                 sysfs      ro,nosuid,nodev,noexec,relatime
│ ├─/sys/devices/virtual/net          sysfs[/devices/virtual/net]                           sysfs      rw,nosuid,nodev,noexec,relatime
│ ├─/sys/fs/fuse/connections          fusectl                                               fusectl    rw,nosuid,nodev,noexec,relatime
│ ├─/sys/fs/cgroup                    none                                                  cgroup2    rw,nosuid,nodev,noexec,relatime
│ └─/sys/devices/system/cpu           lxcfs[/sys/devices/system/cpu]                        fuse.lxcfs rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other
└─/tmp/autopkgtest-lxc.tx2xx0s5       /dev/sda6[/tmp/autopkgtest-lxc.tx2xx0s5]              ext4       rw,relatime,errors=remount-ro

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mbiebl commented May 4, 2022 •
edited

This is lxc 4.0.11-1 and lxcfs 5.0.0-1

@mbiebl mbiebl removed the needs-reporter-feedback ❓ There's an unanswered question, the reporter needs to answer label May 4, 2022
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mbiebl commented May 4, 2022

It appears lxcfs is a Recommends of the lxc package, which is why it's installed (automatically) on the host system.
https://tracker.debian.org/pkg/lxcfs

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bluca commented May 5, 2022

Does it work after adding -o -path /sys/devices/system/cpu to the exclusion list in test/test-execute/exec-dynamicuser-statedir.service?

bluca added a commit to bluca/systemd that referenced this issue May 11, 2022
@bluca
test: ignore LXC filesystem when checking for writable locations
e82f5e5 
test-execute checks that only /var/lib/private/waldo is writable, but there are
some filesystems that are always writable and excluded. Add /sys/devices/system/cpu
which is created by lxcfs.

Fixes systemd#23263
@bluca bluca mentioned this issue May 11, 2022
Merged
@bluca bluca added this to the v251 milestone May 11, 2022
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mbiebl commented May 11, 2022

Does it work after adding -o -path /sys/devices/system/cpu to the exclusion list in test/test-execute/exec-dynamicuser-statedir.service?

Yes, this works i.e. makes the test suite pass.

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bluca commented May 11, 2022

thanks

keszybz pushed a commit that referenced this issue May 11, 2022
@bluca @keszybz
test: ignore LXC filesystem when checking for writable locations
646cba5 
test-execute checks that only /var/lib/private/waldo is writable, but there are
some filesystems that are always writable and excluded. Add /sys/devices/system/cpu
which is created by lxcfs.

Fixes #23263
keszybz pushed a commit to systemd/systemd-stable that referenced this issue May 25, 2022
@bluca @keszybz
test: ignore LXC filesystem when checking for writable locations
16b95a1 
test-execute checks that only /var/lib/private/waldo is writable, but there are
some filesystems that are always writable and excluded. Add /sys/devices/system/cpu
which is created by lxcfs.

Fixes systemd/systemd#23263

(cherry picked from commit 646cba5)
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test: ignore LXC filesystem when checking for writable locations bluca/systemd
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