Continuing.

Program received signal SIGUSR1, User defined signal 1.
0x00007f12333f9573 in __select_nocancel () at ../sysdeps/unix/syscall-template.S:84
84	in ../sysdeps/unix/syscall-template.S
Continuing.

Program received signal SIGUSR1, User defined signal 1.
0x00007f12333f9573 in __select_nocancel () at ../sysdeps/unix/syscall-template.S:84
84	in ../sysdeps/unix/syscall-template.S
#0  0x00007f12333f9573 in __select_nocancel () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005564bc82a489 in ServerLoop () at /build/postgresql-10-YNofMT/postgresql-10-10.0/build/../src/backend/postmaster/postmaster.c:1717
#2  0x00005564bca7fa6b in PostmasterMain (argc=5, argv=<optimized out>) at /build/postgresql-10-YNofMT/postgresql-10-10.0/build/../src/backend/postmaster/postmaster.c:1361
#3  0x00005564bc82c2d5 in main (argc=5, argv=0x5564bea7a850) at /build/postgresql-10-YNofMT/postgresql-10-10.0/build/../src/backend/main/main.c:228