netopeer2-server crash after SSH socket error: connection timed out.

[DaemonZhao]

Hi，Michal Recently，I got some questions about netopeer2-server which crashed sometime，Especially when the network latency increases； Here is the log when netopeer2-serer crashed:

_INF]: NP: Session 8: thread 3 event new RPC. [2024/06/22 15:26:02.778992, 1] ssh_socket_exception_callback: Socket exception callback: 2 (110) [2024/06/22 15:26:02.779238, 1] ssh_socket_exception_callback: Socket error: Connection timed out [ERR]: LN: Session 8: SSH channel poll error (Socket error: Connection timed out). [INF]: NP: Session 8: thread 2 event session terminated. [ERR]: LY: Invalid union value "hmac-sha1,hmac-sha2-256,hmac-sha2-512" - no matching subtype found. (Schema location "/ietf-netconf-notifications:netconf-session-end/source-host".) [ERR]: SR: Invalid union value "hmac-sha1,hmac-sha2-256,hmac-sha2-512" - no matching subtype found. (Schema location "/ietf-netconf-notifications:netconf-session-end/source-host".) [WRN]: NP: Failed to send a notification (libyang error). [INF]: LN: Call Home client "default-client" session terminated. [INF]: LN: Trying to connect via IPv4 to 192.168.30.1:4334. [ERR]: SR: Internal error (/home/wwh1/path/sysrepo-2.1.84/src/common.c:3976). [ERR]: SR: Internal error (/home/wwh1/path/sysrepo-2.1.84/src/common.c:3976).

Hardware: Embedded Operating System

uname -a

Linux ultichip 4.19.78-ucV1.2.1 #5 Wed Nov 8 15:51:58 CST 2023 armv7l GNU/Linux Version: netopeer2-server -V netopeer2-server 2.1.36 sysrepoctl -V sysrepoctl - sysrepo YANG schema manipulation tool, compiled with libsysrepo v2.1.84 (SO v7.8.10)