The gRPC server program will crash when can’t bind successfully

a server program which uses gRPC crashed when started:

$ ./server 60001
......
E1123 15:37:54.133480971   14408 server_chttp2.c:38]         {"created":"@1511422674.133408109","description":"No address added out of total 1 resolved","file":"src/core/ext/transport/chttp2/server/chttp2_server.c","file_line":245,"referenced_errors":[{"created":"@1511422674.133405147","description":"Failed to add any wildcard listeners","file":"src/core/lib/iomgr/tcp_server_posix.c","file_line":338,"referenced_errors":[{"created":"@1511422674.133394827","description":"Unable to configure socket","fd":4,"file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c","file_line":200,"referenced_errors":[{"created":"@1511422674.133385167","description":"OS Error","errno":98,"file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c","file_line":173,"os_error":"Address already in use","syscall":"bind"}]},{"created":"@1511422674.133404647","description":"Unable to configure socket","fd":4,"file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c","file_line":200,"referenced_errors":[{"created":"@1511422674.133401558","description":"OS Error","errno":98,"file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c","file_line":173,"os_error":"Address already in use","syscall":"bind"}]}]}]}
Segmentation fault (core dumped)

It is weird because it runs well yesterday. Check the core dump file:

......
Core was generated by `./server 60001'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f30edbbf9b0 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
(gdb) bt
#0  0x00007f30edbbf9b0 in pthread_mutex_lock () from /usr/lib/libpthread.so.0
#1  0x000055c312c87077 in grpc::Server::Wait() ()
......

No clue. So format the above json log:

{  
   "created":"@1511422674.133408109",
   "description":"No address added out of total 1 resolved",
   "file":"src/core/ext/transport/chttp2/server/chttp2_server.c",
   "file_line":245,
   "referenced_errors":[  
      {  
         "created":"@1511422674.133405147",
         "description":"Failed to add any wildcard listeners",
         "file":"src/core/lib/iomgr/tcp_server_posix.c",
         "file_line":338,
         "referenced_errors":[  
            {  
               "created":"@1511422674.133394827",
               "description":"Unable to configure socket",
               "fd":4,
               "file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c",
               "file_line":200,
               "referenced_errors":[  
                  {  
                     "created":"@1511422674.133385167",
                     "description":"OS Error",
                     "errno":98,
                     "file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c",
                     "file_line":173,
                     "os_error":"Address already in use",
                     "syscall":"bind"
                  }
               ]
            },
            {  
               "created":"@1511422674.133404647",
               "description":"Unable to configure socket",
               "fd":4,
               "file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c",
               "file_line":200,
               "referenced_errors":[  
                  {  
                     "created":"@1511422674.133401558",
                     "description":"OS Error",
                     "errno":98,
                     "file":"src/core/lib/iomgr/tcp_server_utils_posix_common.c",
                     "file_line":173,
                     "os_error":"Address already in use",
                     "syscall":"bind"
                  }
               ]
            }
         ]
      }

Oh, I see. “Address already in use” means the 60001 port is occupied already. I switch to another port, and it works.