Public bug reported:
I've seen this bug reported but almost always it is when being ran as
root. This however is only an issue when ran as a non-root user.
The root user is fine. I've come across this several times and although
it's not a major issue, the only solution I've found is to reboot the
system.
I see this when running strace, tracing the network.
We recently installed docker-ce and updated our version of salt from
2016.8.3 using python 2 to 2019.2.4 using python 3.
### 16.04 - systemd 229 on d1lmonitoringdev1 ###
## non-root user ##
$ strace -f -s 16384 -e trace=network systemctl status ntp
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0
connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/dbus/system_bus_socket"},
33) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_LOCAL, NULL}, [2]) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(3)=[{"\0AUTH EXTERNAL ", 15},
{"3130313631", 10}, {"\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", 28}],
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 53
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"REJECTED EXTERNAL DBUS_COOKIE_SHA1
ANONYMOUS\r\nERROR \"Need to authenticate first\"\r\n", 256}],
msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 82
strace: Process 29413 attached
[pid 29413] --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=29412,
si_uid=10161} ---
Failed to get properties: Access denied
[pid 29413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29413, si_uid=10161,
si_status=0, si_utime=0, si_stime=0} ---
+++ exited with 1 +++
## root user ##
# Truncated because as root it works.
$ sudo strace -f -s 16384 -e trace=network systemctl status ntp
[sudo] password for zbukhari:
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = 0
connect(3, {sa_family=AF_LOCAL, sun_path="/run/systemd/private"}, 22) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_LOCAL, NULL}, [2]) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(3)=[{"\0AUTH EXTERNAL ", 15}, {"30", 2},
{"\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", 28}], msg_controllen=0, msg_flags=0},
MSG_DONTWAIT|MSG_NOSIGNAL) = 45
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"OK
3139491ef18e4f4c84fae863d4dd042f\r\nAGREE_UNIX_FD\r\n", 256}],
msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 52
sendmsg(3, {msg_name(0)=NULL,
msg_iov(2)=[{"l\1\4\1\5\0\0\0\1\0\0\0\237\0\0\0\1\1o\0,\0\0\0/org/freedesktop/systemd1/unit/ntp_2eservice\0\0\0\0\3\1s\0\6\0\0\
0GetAll\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus.Properties\0\6\1s\0\30\0\0\0org.freedesktop.systemd1\0\0\0\0\0\0\0\0\10\1g\0\1s\0\0",
176}, {"\0\0\0\0\0", 5}], msg_controllen=0, msg_flags=0},
MSG_DONTWAIT|MSG_NOSIGNAL) = 181
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\35
\0\0\1\0\0\0\23\0\0\0\5\1u\0\1\0\0\0", 24}], msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
### 18.04 - systemd 237 on d1lzbbyodev1 ###
## non-root user ##
$ strace -f -s 16384 -e trace=%network systemctl status ntp
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0
connect(3, {sa_family=AF_UNIX, sun_path="/run/dbus/system_bus_socket"}, 29) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_PEERSEC, 0x56338b39b450, [64]) = -1 ENOPROTOOPT
(Protocol not available)
getsockopt(3, SOL_SOCKET, SO_PEERGROUPS, "", [256->0]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_UNIX}, [128->2]) = 0
sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0AUTH EXTERNAL
", iov_len=15}, {iov_base="3130313631", iov_len=10},
{iov_base="\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", iov_len=28}], msg_iovlen=3,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 53
strace: Process 22703 attached
[pid 22702] recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="REJECTED EXTERNAL\r\nERROR \"Need to authenticate
first\"\r\n", iov_len=256}], msg_iovlen=1, msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 55
[pid 22703] --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=22702,
si_uid=10161} ---
Failed to get properties: Access denied
[pid 22703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22703, si_uid=10161,
si_status=0, si_utime=0, si_stime=0} ---
+++ exited with 1 +++
## root user ##
# truncated because as root it works.
$ sudo strace -f -s 16384 -e trace=%network systemctl status ntp
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = 0
connect(3, {sa_family=AF_UNIX, sun_path="/run/systemd/private"}, 22) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_PEERSEC, 0x557f1d186450, [64]) = -1 ENOPROTOOPT
(Protocol not available)
getsockopt(3, SOL_SOCKET, SO_PEERGROUPS, "", [256->0]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_UNIX}, [128->2]) = 0
sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0AUTH EXTERNAL
", iov_len=15}, {iov_base="30", iov_len=2},
{iov_base="\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", iov_len=28}], msg_iovlen=3,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 45
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
strace: Process 22999 attached
[pid 22998] recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="OK
fd99f58716884af9a7c053f7d08a1db0\r\nAGREE_UNIX_FD\r\n", iov_len=256}],
msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 52
[pid 22998] sendmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="l\1\4\1\5\0\0\0\1\0\0\0\237\0\0\0\1\1o\0,\0\0\0/org/freedesktop/systemd1/unit/ntp_2eservice\0\0\0\0\3\1s\0\6\0\0\0GetAll\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus.Properties\0\6\1s\0\30\0\0\0org.freedesktop.systemd1\0\0\0\0\0\0\0\0\10\1g\0\1s\0\0",
iov_len=176}, {iov_base="\0\0\0\0\0", iov_len=5}], msg_iovlen=2,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 181
[pid 22998] recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="l\2\1\1Q(\0\0\1\0\0\0;\0\0\0\5\1u\0\1\0\0\0", iov_len=24}],
msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1885948
Title:
systemd 229 (16.04) and 237 (18.04) error with "Failed to get
properties: Access denied" when ran as non-root user
Status in systemd package in Ubuntu:
New
Bug description:
I've seen this bug reported but almost always it is when being ran as
root. This however is only an issue when ran as a non-root user.
The root user is fine. I've come across this several times and
although it's not a major issue, the only solution I've found is to
reboot the system.
I see this when running strace, tracing the network.
We recently installed docker-ce and updated our version of salt from
2016.8.3 using python 2 to 2019.2.4 using python 3.
### 16.04 - systemd 229 on d1lmonitoringdev1 ###
## non-root user ##
$ strace -f -s 16384 -e trace=network systemctl status ntp
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0
connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/dbus/system_bus_socket"},
33) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_LOCAL, NULL}, [2]) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(3)=[{"\0AUTH EXTERNAL ", 15},
{"3130313631", 10}, {"\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", 28}],
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 53
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"REJECTED EXTERNAL
DBUS_COOKIE_SHA1 ANONYMOUS\r\nERROR \"Need to authenticate first\"\r\n", 256}],
msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 82
strace: Process 29413 attached
[pid 29413] --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=29412,
si_uid=10161} ---
Failed to get properties: Access denied
[pid 29413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29413,
si_uid=10161, si_status=0, si_utime=0, si_stime=0} ---
+++ exited with 1 +++
## root user ##
# Truncated because as root it works.
$ sudo strace -f -s 16384 -e trace=network systemctl status ntp
[sudo] password for zbukhari:
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = 0
connect(3, {sa_family=AF_LOCAL, sun_path="/run/systemd/private"}, 22) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_LOCAL, NULL}, [2]) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(3)=[{"\0AUTH EXTERNAL ", 15}, {"30",
2}, {"\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", 28}], msg_controllen=0,
msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 45
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"OK
3139491ef18e4f4c84fae863d4dd042f\r\nAGREE_UNIX_FD\r\n", 256}],
msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 52
sendmsg(3, {msg_name(0)=NULL,
msg_iov(2)=[{"l\1\4\1\5\0\0\0\1\0\0\0\237\0\0\0\1\1o\0,\0\0\0/org/freedesktop/systemd1/unit/ntp_2eservice\0\0\0\0\3\1s\0\6\0\0\
0GetAll\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus.Properties\0\6\1s\0\30\0\0\0org.freedesktop.systemd1\0\0\0\0\0\0\0\0\10\1g\0\1s\0\0",
176}, {"\0\0\0\0\0", 5}], msg_controllen=0, msg_flags=0},
MSG_DONTWAIT|MSG_NOSIGNAL) = 181
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\35
\0\0\1\0\0\0\23\0\0\0\5\1u\0\1\0\0\0", 24}], msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
### 18.04 - systemd 237 on d1lzbbyodev1 ###
## non-root user ##
$ strace -f -s 16384 -e trace=%network systemctl status ntp
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation
not permitted)
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0
connect(3, {sa_family=AF_UNIX, sun_path="/run/dbus/system_bus_socket"}, 29) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_PEERSEC, 0x56338b39b450, [64]) = -1 ENOPROTOOPT
(Protocol not available)
getsockopt(3, SOL_SOCKET, SO_PEERGROUPS, "", [256->0]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_UNIX}, [128->2]) = 0
sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0AUTH EXTERNAL
", iov_len=15}, {iov_base="3130313631", iov_len=10},
{iov_base="\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", iov_len=28}], msg_iovlen=3,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 53
strace: Process 22703 attached
[pid 22702] recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="REJECTED EXTERNAL\r\nERROR \"Need to authenticate
first\"\r\n", iov_len=256}], msg_iovlen=1, msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 55
[pid 22703] --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=22702,
si_uid=10161} ---
Failed to get properties: Access denied
[pid 22703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22703,
si_uid=10161, si_status=0, si_utime=0, si_stime=0} ---
+++ exited with 1 +++
## root user ##
# truncated because as root it works.
$ sudo strace -f -s 16384 -e trace=%network systemctl status ntp
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = 0
connect(3, {sa_family=AF_UNIX, sun_path="/run/systemd/private"}, 22) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
getsockopt(3, SOL_SOCKET, SO_PEERSEC, 0x557f1d186450, [64]) = -1 ENOPROTOOPT
(Protocol not available)
getsockopt(3, SOL_SOCKET, SO_PEERGROUPS, "", [256->0]) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_UNIX}, [128->2]) = 0
sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0AUTH EXTERNAL
", iov_len=15}, {iov_base="30", iov_len=2},
{iov_base="\r\nNEGOTIATE_UNIX_FD\r\nBEGIN\r\n", iov_len=28}], msg_iovlen=3,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 45
getsockopt(3, SOL_SOCKET, SO_PEERCRED, {pid=1, uid=0, gid=0}, [12]) = 0
strace: Process 22999 attached
[pid 22998] recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="OK
fd99f58716884af9a7c053f7d08a1db0\r\nAGREE_UNIX_FD\r\n", iov_len=256}],
msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 52
[pid 22998] sendmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="l\1\4\1\5\0\0\0\1\0\0\0\237\0\0\0\1\1o\0,\0\0\0/org/freedesktop/systemd1/unit/ntp_2eservice\0\0\0\0\3\1s\0\6\0\0\0GetAll\0\0\2\1s\0\37\0\0\0org.freedesktop.DBus.Properties\0\6\1s\0\30\0\0\0org.freedesktop.systemd1\0\0\0\0\0\0\0\0\10\1g\0\1s\0\0",
iov_len=176}, {iov_base="\0\0\0\0\0", iov_len=5}], msg_iovlen=2,
msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 181
[pid 22998] recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="l\2\1\1Q(\0\0\1\0\0\0;\0\0\0\5\1u\0\1\0\0\0", iov_len=24}],
msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC},
MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
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