tried to do my own version of pika by modifying code but have these issues

[sprappcom]

when i tried to sync a replica slave, i get this error on both master and slave and both with segmentation fault.

how do i debug without additional information on where it crashed?

I20240123 04:58:24.052001  5180 dispatch_thread.cc:151] accept new conn 74:172.17.0.4:60260:0
I20240123 04:58:24.052095  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
I20240123 04:58:26.262593  5180 dispatch_thread.cc:151] accept new conn 74:172.17.0.5:49148:0
I20240123 04:58:26.262666  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
I20240123 04:58:26.263528  5151 pika_repl_server_conn.cc:38] Receive MetaSync, Slave ip: 172.17.0.5, Slave port:9221
I20240123 04:58:26.263561  5151 pika_server.cc:790] Add New Slave, 172.17.0.5:9221
I20240123 04:58:26.263980  5180 dispatch_thread.cc:151] accept new conn 76:172.17.0.5:49152:0
I20240123 04:58:26.264007  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
I20240123 04:58:26.410348  5152 pika_repl_server_conn.cc:106] Receive Trysync, Slave ip: 172.17.0.5, Slave port:9221, Slot: db0, filenum: 0, pro_offset: 0
I20240123 04:58:26.410557  5152 pika_rm.cc:69] Add Slave Node, slot: (db0:0), ip_port: 172.17.0.5:9221
I20240123 04:58:26.410585  5152 pika_repl_server_conn.cc:173] Slot: db0 TrySync Success, Session: 0
I20240123 04:58:27.602931  4980 pika_server.cc:2041] hit rate:0
Keep-alive check1: 1
I20240123 04:58:29.053215  5180 dispatch_thread.cc:151] accept new conn 77:172.17.0.4:60266:0
I20240123 04:58:29.053287  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
I20240123 04:58:30.319111  5180 dispatch_thread.cc:151] accept new conn 77:172.17.0.4:60270:0
I20240123 04:58:30.319192  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
I20240123 04:58:32.603063  4980 pika_server.cc:2041] hit rate:0
Keep-alive check1: 1
I20240123 04:58:32.899376  5157 pika_repl_server.cc:26] PikaReplServer exit!!!
I20240123 04:58:32.899466  5157 pika_repl_server_thread.cc:24] ServerThread Close Slave Conn, fd: 74, ip_port: 172.17.0.5:43786
I20240123 04:58:32.899482  5157 pika_server.cc:689] Delete Slave Success, ip_port: 172.17.0.5:9221
I20240123 04:58:32.899566  5157 pika_rm.cc:80] Remove Slave Node, Slot: (db0:0), ip_port: 172.17.0.5:9221
I20240123 04:58:34.055202  5180 dispatch_thread.cc:151] accept new conn 3:172.17.0.4:37606:0
I20240123 04:58:34.055296  5180 dispatch_thread.cc:159] find worker(0), refresh the last_thread_ to 0
Segmentation fault (core dumped)