启动 zabbix 服务卡顿

[testVmap]

才安装好 zabbix，zabbix-agent 正常

systemctl restart zabbix-server 无反应。

用 strace systemctl restart zabbix-server 抓取的 log，大神们看看啥问题。

execve("/usr/bin/systemctl", ["systemctl", "restart", "zabbix-server"], [/* 27 vars */]) = 0
brk(0)                                  = 0x55ac0283d000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0d07000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=50412, ...}) = 0
mmap(NULL, 50412, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f26a0cfa000
close(3)                                = 0
open("/usr/lib64/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\"\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=44448, ...}) = 0
mmap(NULL, 2128952, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f26a08df000
mprotect(0x7f26a08e6000, 2093056, PROT_NONE) = 0
mmap(0x7f26a0ae5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f26a0ae5000
close(3)                                = 0
open("/usr/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300j\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=155744, ...}) = 0
mmap(NULL, 2255216, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f26a06b8000
mprotect(0x7f26a06dc000, 2093056, PROT_NONE) = 0
mmap(0x7f26a08db000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7f26a08db000
mmap(0x7f26a08dd000, 6512, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f26a08dd000
close(3)                                = 0
open("/usr/lib64/liblzma.so.5", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\2000\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=157424, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0cf9000
mmap(NULL, 2249352, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f26a0492000
mprotect(0x7f26a04b7000, 2093056, PROT_NONE) = 0
mmap(0x7f26a06b6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f26a06b6000
close(3)                                = 0
open("/usr/lib64/libgcrypt.so.11", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0u\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=535064, ...}) = 0
mmap(NULL, 2621648, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f26a0211000
mprotect(0x7f26a028e000, 2093056, PROT_NONE) = 0
mmap(0x7f26a048d000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7c000) = 0x7f26a048d000
mmap(0x7f26a0491000, 208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f26a0491000
close(3)                                = 0
open("/usr/lib64/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360*\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=88720, ...}) = 0
mmap(NULL, 2184192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269fffb000
mprotect(0x7f26a0010000, 2093056, PROT_NONE) = 0
mmap(0x7f26a020f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0x7f26a020f000
close(3)                                = 0
open("/usr/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0m\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=144792, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0cf8000
mmap(NULL, 2208904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269fddf000
mprotect(0x7f269fdf6000, 2093056, PROT_NONE) = 0
mmap(0x7f269fff5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f269fff5000
mmap(0x7f269fff7000, 13448, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f269fff7000
close(3)                                = 0
open("/usr/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\35\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2127336, ...}) = 0
mmap(NULL, 3940800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269fa1c000
mprotect(0x7f269fbd4000, 2097152, PROT_NONE) = 0
mmap(0x7f269fdd4000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7f269fdd4000
mmap(0x7f269fdda000, 16832, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f269fdda000
close(3)                                = 0
open("/usr/lib64/libpcre.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\25\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=402384, ...}) = 0
mmap(NULL, 2494984, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269f7ba000
mprotect(0x7f269f81a000, 2097152, PROT_NONE) = 0
mmap(0x7f269fa1a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7f269fa1a000
close(3)                                = 0
open("/usr/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\16\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=19776, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0cf7000
mmap(NULL, 2109744, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269f5b6000
mprotect(0x7f269f5b8000, 2097152, PROT_NONE) = 0
mmap(0x7f269f7b8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f269f7b8000
close(3)                                = 0
open("/usr/lib64/libgpg-error.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\n\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=19384, ...}) = 0
mmap(NULL, 2113656, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f269f3b1000
mprotect(0x7f269f3b5000, 2093056, PROT_NONE) = 0
mmap(0x7f269f5b4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f269f5b4000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0cf6000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0cf4000
arch_prctl(ARCH_SET_FS, 0x7f26a0cf4880) = 0
mprotect(0x7f269fdd4000, 16384, PROT_READ) = 0
mprotect(0x7f269f5b4000, 4096, PROT_READ) = 0
mprotect(0x7f269f7b8000, 4096, PROT_READ) = 0
mprotect(0x7f269fff5000, 4096, PROT_READ) = 0
mprotect(0x7f269fa1a000, 4096, PROT_READ) = 0
mprotect(0x7f26a020f000, 4096, PROT_READ) = 0
mprotect(0x7f26a048d000, 4096, PROT_READ) = 0
mprotect(0x7f26a06b6000, 4096, PROT_READ) = 0
mprotect(0x7f26a08db000, 4096, PROT_READ) = 0
mprotect(0x7f26a0ae5000, 4096, PROT_READ) = 0
stat("/etc/sysconfig/64bit_strstr_via_64bit_strstr_sse2_unaligned", 0x7ffc14897330) = -1 ENOENT (No such file or directory)
mprotect(0x55ac014ac000, 20480, PROT_READ) = 0
mprotect(0x7f26a0d08000, 4096, PROT_READ) = 0
munmap(0x7f26a0cfa000, 50412)           = 0
set_tid_address(0x7f26a0cf4b50)         = 70841
set_robust_list(0x7f26a0cf4b60, 24)     = 0
rt_sigaction(SIGRTMIN, {0x7f269fde57e0, [], SA_RESTORER|SA_SIGINFO, 0x7f269fdee5e0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x7f269fde5870, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f269fdee5e0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
brk(0)                                  = 0x55ac0283d000
brk(0x55ac0285e000)                     = 0x55ac0285e000
access("/etc/system-fips", F_OK)        = -1 ENOENT (No such file or directory)
statfs("/sys/fs/selinux", 0x7ffc14898590) = -1 ENOENT (No such file or directory)
statfs("/selinux", 0x7ffc14898590)      = -1 ENOENT (No such file or directory)
open("/proc/filesystems", O_RDONLY)     = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0d06000
read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tr"..., 1024) = 307
stat("/etc/sysconfig/64bit_strstr_via_64bit_strstr_sse2_unaligned", 0x7ffc14898170) = -1 ENOENT (No such file or directory)
read(3, "", 1024)                       = 0
close(3)                                = 0
munmap(0x7f26a0d06000, 4096)            = 0
access("/etc/selinux/config", F_OK)     = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=106070960, ...}) = 0
mmap(NULL, 106070960, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2698e88000
close(3)                                = 0
open("/proc/self/stat", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26a0d06000
read(3, "70841 (systemctl) R 70838 70838 "..., 1024) = 349
close(3)                                = 0
munmap(0x7f26a0d06000, 4096)            = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x7ffc148983d0) = -1 ENOTTY (Inappropriate ioctl for device)
stat("/proc/1/root", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
stat("/", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
stat("/proc/1/root", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
stat("/", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
lstat("/run/systemd/system/", {st_mode=S_IFDIR|0755, st_size=480, ...}) = 0
geteuid()                               = 0
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
setsockopt(3, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
setsockopt(3, SOL_SOCKET, 0x22 /* SO_??? */, [0], 4) = 0
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, 0x21 /* SO_??? */, [8388608], 4) = 0
getsockopt(3, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0
setsockopt(3, SOL_SOCKET, 0x20 /* SO_??? */, [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_PEERSEC, 0x55ac0283e810, 0x7ffc14898130) = -1 ENOPROTOOPT (Protocol not available)
fstat(3, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
getsockopt(3, SOL_SOCKET, SO_ACCEPTCONN, [0], [4]) = 0
getsockname(3, {sa_family=AF_LOCAL, sun_path=@"000f6"}, [8]) = 0
geteuid()                               = 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
stat("/proc/1/root", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
stat("/", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f26a0cf4b50) = 70842
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
pipe2([4, 5], 0)                        = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f26a0cf4b50) = 70843
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
close(5)                                = 0
ppoll([{fd=4, events=POLLHUP}], 1, NULL, NULL, 8) = 1 ([{fd=4, revents=POLLHUP}])
close(4)                                = 0
gettid()                                = 70841
syscall_318(0x55ac014b15b0, 0x10, 0x1, 0x30, 0x1000, 0x55ac014b15b0) = 0x10
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"OK 4fab5efd322f4121b7f1f2f3ad4d7"..., 256}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=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(\0\0\0\1\0\0\0\240\0\0\0\1\1o\0\31\0\0\0/org/fre"..., 176}, {"\25\0\0\0zabbix-server.service\0\0\0\7\0\0\0"..., 40}], msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 216
recvmsg(3, 0x7ffc148971a0, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
ppoll([{fd=3, events=POLLIN}], 1, {24, 999976000}, NULL, 8) = 1 ([{fd=3, revents=POLLIN}], left {24, 999696412})
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1)\0\0\0\1\0\0\0\17\0\0\0\5\1u\0\1\0\0\0", 24}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"\10\1g\0\1o\0\0$\0\0\0/org/freedesktop/sys"..., 49}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 49
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\1\32\0\0\0\2\0\0\0\227\0\0\0\1\1o\0\31\0\0\0/org/fre"..., 168}, {"\25\0\0\0zabbix-server.service\0", 26}], msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 194
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\4\1\1H\0\0\0\2\0\0\0\206\0\0\0\1\1o\0$\0\0\0", 24}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"/org/freedesktop/systemd1/job/23"..., 200}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 200
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1=\0\0\0\3\0\0\0\17\0\0\0\5\1u\0\2\0\0\0", 24}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"\10\1g\0\1o\0\0008\0\0\0/org/freedesktop/sys"..., 69}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 69
sendmsg(3, {msg_name(0)=NULL, msg_iov(2)=[{"l\1\0\0019\0\0\0\3\0\0\0\260\0\0\0\1\1o\0008\0\0\0/org/fre"..., 192}, {"\35\0\0\0org.freedesktop.systemd1.Uni"..., 57}], msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 249
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"l\2\1\1\10\0\0\0\4\0\0\0\17\0\0\0\5\1u\0\3\0\0\0", 24}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 24
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"\10\1g\0\1v\0\0\1b\0\0\0\0\0\0", 16}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=1, uid=0, gid=0}}, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = 16
recvmsg(3, 0x7ffc14897040, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily unavailable)
ppoll([{fd=3, events=POLLIN}], 1, NULL, NULL, 8Process 70841 detached