Hi, I'm using FRR 7.4 (OpenWrt). I'm not using the integrated-config (i.e. each daemon has it's own config file). Below sequence of commands crashes ospfd. Please advise if any more useful debug information I can provide regarding this issue. === CRASH-1 [this happens after "no route-map SET_MED permit 10" command is executed] OSPF[9944]: Received signal 4 at 1772832797 (si_addr 0xffffffffb6f206d0); aborting... OSPF[9944]: in thread vtysh_read scheduled from lib/vty.c:2675 FRR(config)# log syslog FRR(config)# debug ospf zebra FRR(config)# debug ospf event FRR(config)# debug ospf ism FRR(config)# do show running-config Building configuration... Current configuration: ! frr version 7.4 frr defaults traditional log syslog hostname FRR ! line vty ! End FRR(config)# route-map SET_MED permit 10 FRR(config-route-map)# set metric 3333 FRR(config-route-map)# exit FRR(config)# no route-map SET_MED permit 10 (** console hangs here for very long time and finally shows below error **) vtysh: error reading from ospfd: No such file or directory (2)Warning: closing connection to ospfd because of an I/O error! FRR(config)# === CRASH-2 [this happens after "set metric 1234" command is executed] ripd[9945]: route_set_metric_compile: Metric specified: 1234 is greater than RIP_METRIC_INFINITY, using INFINITY instead ripngd[9948]: route_set_metric_compile: Metric specified: 1234 is being converted into METRIC_INFINITY OSPF[9952]: Received signal 11 at 1772834027 (si_addr 0x8); aborting... OSPF[9952]: in thread vtysh_read scheduled from lib/vty.c:2675 FRR(config)# log syslog FRR(config)# debug ospf ism FRR(config)# debug ospf event FRR(config)# debug ospf zebra FRR(config)# do show running-config Building configuration... Current configuration: ! frr version 7.4 frr defaults traditional log syslog hostname FRR ! line vty ! End FRR(config)# route-map SET_MED permit 10 FRR(config-route-map)# set metric 1234 (** console hangs here for very long time and finally shows below error **) vtysh: error reading from ospfd: No such file or directory (2)Warning: closing connection to ospfd because of an I/O error! AprisaLTE(config-route-map)# == root@AprisaLTE:/# cat /etc/frr/daemons # The watchfrr and zebra daemons are always started. # bgpd=yes ospfd=yes #ospfd_instances=1,20 ospf6d=yes ripd=yes ripngd=yes isisd=no pimd=no ldpd=no nhrpd=yes eigrpd=yes babeld=no sharpd=no pbrd=no bfdd=no fabricd=no vrrpd=no # # If this option is set the /etc/init.d/frr script automatically loads # the config via "vtysh -b" when the servers are started. # Check /etc/pam.d/frr if you intend to use "vtysh"! # vtysh_enable=yes zebra_options=" -A 127.0.0.1 -s 90000000 -f /opt/conf/openwrt/etc/frr/zebra.conf" bgpd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/bgpd.conf" ospfd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/ospfd.conf" ospf6d_options=" -A ::1 -f /opt/conf/openwrt/etc/frr/ospf6d.conf" ripd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/ripd.conf" ripngd_options=" -A ::1 -f /opt/conf/openwrt/etc/frr/ripngd.conf" isisd_options=" -A 127.0.0.1" pimd_options=" -A 127.0.0.1" ldpd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/ldpd.conf" nhrpd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/nhrpd.conf" eigrpd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/eigrpd.conf" babeld_options=" -A 127.0.0.1" sharpd_options=" -A 127.0.0.1" pbrd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/pbrd.conf" staticd_options="-A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/staticd.conf" bfdd_options=" -A 127.0.0.1 -f /opt/conf/openwrt/etc/frr/bfdd.conf" fabricd_options="-A 127.0.0.1" vrrpd_options=" -A 127.0.0.1" # The list of daemons to watch is automatically generated by the init script. #watchfrr_options="" # for debugging purposes, you can specify a "wrap" command to start instead # of starting the daemon directly, e.g. to use valgrind on ospfd: # ospfd_wrap="/usr/bin/valgrind" # or you can use "all_wrap" for all daemons, e.g. to use perf record: # all_wrap="/usr/bin/perf record --call-graph -" # the normal daemon command is added to this at the end.