[stdout] [child4:2474] [250] io_getevents(ctx_id=0x7df67c3627486ce5, min_nr=4096, nr=0xffffffffaf0fefe4, events=0x7fff8c49c000, timeout=0x7fff8c89c000) = -1 (Invalid argument)
[stdout] [child4:2474] [251] getegid() = 1000
[stdout] [child4:2474] [252] sched_get_priority_max(policy=0xffffffff) = -1 (Invalid argument)
[stdout] [child4:2474] [253] epoll_create(size=1) = 425
[stdout] [child4:2474] epoll fd:425 used create1?:1 flags:1
[stdout] [child4:2474] [254] faccessat(dfd=327, filename="/proc/24525/net/stat/arp_cache", mode=700) = -1 (Invalid argument)
[stdout] [child4:2474] [255] pwrite64(fd=327, buf=0x10013f98ac0, count=1, pos=188) = -1 (Illegal seek)
[stdout] [child4:2474] [256] timerfd_create(clockid=0x0, flags=0x80000) = 426
[stdout] [child4:2474] [257] add_key(_type=0x10048e28, _description=0x7fff8c79c000, _payload=0x0, plen=8, ringid=0xfffffffffffffffa) [child22:2471] [213] name_to_handle_at(fd=360, name=0x4, handle=0x5, mnt_id=0x7fff8c097000, flag=0xffffffffffffff9c) [child22:2471] trace_fd was -1
[stdout] [child14:2469] trace_fd was -1

Message from syslogd@alp12 at May 24 01:35:06 ...
 kernel:Dumping ftrace buffer:

Message from syslogd@alp12 at May 24 01:35:06 ...
 kernel:   (ftrace buffer empty)