statfs("/dev/shm", {f_type=TMPFS_MAGIC, f_bsize=4096, f_blocks=1004562, f_bfree=962566, f_bavail=962566, f_files=1004562, f_ffree=1004389, f_fsid={val=[0, 0]}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_NOSUID|ST_NODEV}) = 0
futex(0xf77031cc, FUTEX_WAKE_PRIVATE, 2147483647) = 0
gettimeofday({tv_sec=1544919660, tv_usec=979948}, NULL) = 0

lstat64("/dev/shm/sem.OYk4TR", 0xff9d5bf0) = -1 ENOENT (No such file or directory)

open("/dev/shm/sem.OYk4TR", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
write(3, "\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 16
mmap2(NULL, 16, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0xf74fe000
futex(0xf7765eec, FUTEX_WAKE_PRIVATE, 2147483647) = 0

open("/tmp/sb2-tone-20181216-000415.J17738/RuleTree.bin", O_RDWR|O_CLOEXEC) = 4
read(4, "\377\1\250\347\1\0\0\0\6\0\0\0006\0\0\0\0\0\0\0\0\0\0\0\4\314\2\0\0\0\0\1"..., 36) = 36
mmap2(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) = 0xf64fe000
close(4)                                = 0

readlink("/tmp/sb2-tone-20181216-000415.J17738/tmp/sem.OYk4TR", 0xff9d3a9b, 4096) = -1 ENOENT (No such file or directory)
readlink("/tmp/sb2-tone-20181216-000415.J17738/tmp/sem.aaa", 0xff9d3a9b, 4096) = -1 ENOENT (No such file or directory)
link("/tmp/sb2-tone-20181216-000415.J17738/tmp/sem.OYk4TR", "/tmp/sb2-tone-20181216-000415.J17738/tmp/sem.aaa") = -1 ENOENT (No such file or directory)

munmap(0xf74fe000, 16)                  = 0

unlink("/tmp/sb2-tone-20181216-000415.J17738/tmp/sem.OYk4TR") = -1 ENOENT (No such file or directory)
close(3)                                = 0

fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 3), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf74fe000
write(1, "HELLO errno 2 testSem 00000000 \n", 32HELLO errno 2 testSem 00000000
) = 32
exit_group(32)                          = ?
+++ exited with 32 +++