`systemctl reload frr` failing with more recent systemd

[panlinux]

Description

UPDATE: originally I thought this was related to a change between 10.5.0 and 10.5.1, but now even with 10.5.0 I get the same behavior on current debian sid and ubuntu resolute installs. I won't be able to edit all the logs below, so please just keep this in mind.

With 10.5.0, debian and ubuntu installs, reload used to work:

ubuntu@sid:~$ sudo systemctl status frr
● frr.service - FRRouting
     Loaded: loaded (/usr/lib/systemd/system/frr.service; enabled; preset: enabled)
    Drop-In: /run/systemd/system/service.d
             └─zzz-lxc-service.conf
     Active: active (running) since Sat 2026-01-10 20:49:17 UTC; 1min 33s ago
 Invocation: 13e3f39acf0d4417a83a0e12a1982a6b
       Docs: https://frrouting.readthedocs.io/en/latest/setup.html
    Process: 933 ExecStart=/usr/lib/frr/frrinit.sh start (code=exited, status=0/SUCCESS)
    Process: 1020 ExecReload=/usr/lib/frr/frrinit.sh reload (code=exited, status=0/SUCCESS)
   Main PID: 1038 (watchfrr)
     Status: "FRR Operational"
      Tasks: 8 (limit: 17968)
     Memory: 24.5M (peak: 55.7M)
        CPU: 444ms
     CGroup: /system.slice/frr.service
             ├─ 952 /usr/lib/frr/mgmtd -d -F traditional -A 127.0.0.1
             ├─ 954 /usr/lib/frr/zebra -d -F traditional -A 127.0.0.1 -s 90000000
             ├─ 959 /usr/lib/frr/staticd -d -F traditional -A 127.0.0.1
             └─1038 /usr/lib/frr/watchfrr -d mgmtd zebra staticd

Jan 10 20:50:40 sid watchfrr[942]: [NG1AJ-FP2TQ] Terminating on signal
Jan 10 20:50:40 sid frrinit.sh[1020]: Stopped watchfrr.
Jan 10 20:50:40 sid frrinit.sh[1020]: Starting watchfrr with command: '  /usr/lib/frr/watchfrr  -d   mgmtd zebra staticd'.
Jan 10 20:50:40 sid watchfrr[1038]: [T83RR-8SM5G] watchfrr 10.5.0 starting: vty@0
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 10 20:50:40 sid frrinit.sh[1020]: Started watchfrr.
Jan 10 20:50:40 sid systemd[1]: Reloaded frr.service - FRRouting.
ubuntu@sid:~$ 

Logs show:

Jan 10 20:50:40 sid systemd[1]: Reloading frr.service - FRRouting...
Jan 10 20:50:40 sid watchfrr[942]: [NG1AJ-FP2TQ] Terminating on signal
Jan 10 20:50:40 sid frrinit.sh[1020]: Stopped watchfrr.
Jan 10 20:50:40 sid frrinit.sh[1020]: Starting watchfrr with command: '  /usr/lib/frr/watchfrr  -d   mgmtd zebra staticd'.
Jan 10 20:50:40 sid watchfrr[1038]: [T83RR-8SM5G] watchfrr 10.5.0 starting: vty@0
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 10 20:50:40 sid watchfrr[1038]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 10 20:50:40 sid frrinit.sh[1020]: Started watchfrr.
Jan 10 20:50:40 sid systemd[1]: Reloaded frr.service - FRRouting.

With 10.5.1, however:

root@sid:~# systemctl reload frr
Job for frr.service canceled.

root@sid:~# systemctl status frr
● frr.service - FRRouting
     Loaded: loaded (/usr/lib/systemd/system/frr.service; enabled; preset: enabled)
    Drop-In: /run/systemd/system/service.d
             └─zzz-lxc-service.conf
     Active: deactivating (stop-sigterm) since Sat 2026-01-10 20:55:55 UTC; 38s ago
 Invocation: 8395288194124ec8b5d803c0085efbea
       Docs: https://frrouting.readthedocs.io/en/latest/setup.html
    Process: 912 ExecStart=/usr/lib/frr/frrinit.sh start (code=exited, status=0/SUCCESS)
    Process: 1076 ExecReload=/usr/lib/frr/frrinit.sh reload (code=exited, status=0/SUCCESS)
   Main PID: 1094 (watchfrr)
     Status: "FRR Operational"
      Tasks: 8 (limit: 17968)
     Memory: 24.4M (peak: 55.2M)
        CPU: 434ms
     CGroup: /system.slice/frr.service
             ├─ 931 /usr/lib/frr/mgmtd -d -F traditional -A 127.0.0.1
             ├─ 933 /usr/lib/frr/zebra -d -F traditional -A 127.0.0.1 -s 90000000
             ├─ 938 /usr/lib/frr/staticd -d -F traditional -A 127.0.0.1
             └─1094 /usr/lib/frr/watchfrr -d mgmtd zebra staticd

Jan 10 20:55:55 sid systemd[1]: Reloading frr.service - FRRouting...
Jan 10 20:55:55 sid watchfrr[921]: [NG1AJ-FP2TQ] Terminating on signal
Jan 10 20:55:55 sid frrinit.sh[1076]: Stopped watchfrr.
Jan 10 20:55:55 sid frrinit.sh[1076]: Starting watchfrr with command: '  /usr/lib/frr/watchfrr  -d   mgmtd zebra staticd'.
Jan 10 20:55:55 sid watchfrr[1094]: [T83RR-8SM5G] watchfrr 10.5.1 starting: vty@0
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 10 20:55:55 sid frrinit.sh[1076]: Started watchfrr.

Notice deactivating state above.

And logs show that systemd gave up waiting on something after a while:

Jan 10 20:55:55 sid systemd[1]: Reloading frr.service - FRRouting...
Jan 10 20:55:55 sid watchfrr[921]: [NG1AJ-FP2TQ] Terminating on signal
Jan 10 20:55:55 sid frrinit.sh[1076]: Stopped watchfrr.
Jan 10 20:55:55 sid frrinit.sh[1076]: Starting watchfrr with command: '  /usr/lib/frr/watchfrr  -d   mgmtd zebra staticd'.
Jan 10 20:55:55 sid watchfrr[1094]: [T83RR-8SM5G] watchfrr 10.5.1 starting: vty@0
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 10 20:55:55 sid watchfrr[1094]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 10 20:55:55 sid frrinit.sh[1076]: Started watchfrr.

Jan 10 20:57:55 sid systemd[1]: frr.service: State 'stop-sigterm' timed out. Killing.
Jan 10 20:57:55 sid systemd[1]: frr.service: Killing process 1094 (watchfrr) with signal SIGKILL.
Jan 10 20:57:55 sid systemd[1]: frr.service: Killing process 931 (mgmtd) with signal SIGKILL.
Jan 10 20:57:55 sid systemd[1]: frr.service: Killing process 933 (zebra) with signal SIGKILL.
Jan 10 20:57:55 sid systemd[1]: frr.service: Killing process 938 (staticd) with signal SIGKILL.
Jan 10 20:57:55 sid systemd[1]: frr.service: Main process exited, code=killed, status=9/KILL
Jan 10 20:57:55 sid systemd[1]: frr.service: Failed with result 'timeout'.
Jan 10 20:57:55 sid systemd[1]: frr.service: Triggering OnFailure= dependencies.
Jan 10 20:57:55 sid systemd[1]: frr.service: Failed to enqueue OnFailure=heartbeat-failed@frr.service job, ignoring: Unit heartbeat-failed@frr.service not found.
Jan 10 20:58:00 sid systemd[1]: frr.service: Scheduled restart job, restart counter is at 1.
Jan 10 20:58:00 sid systemd[1]: Starting frr.service - FRRouting...
Jan 10 20:58:00 sid frrinit.sh[1164]: Starting watchfrr with command: '  /usr/lib/frr/watchfrr  -d   mgmtd zebra staticd'.
Jan 10 20:58:00 sid watchfrr[1173]: [T83RR-8SM5G] watchfrr 10.5.1 starting: vty@0
Jan 10 20:58:00 sid watchfrr[1173]: [ZCJ3S-SPH5S] mgmtd state -> down : initial connection attempt failed
Jan 10 20:58:00 sid watchfrr[1173]: [ZCJ3S-SPH5S] zebra state -> down : initial connection attempt failed
Jan 10 20:58:00 sid watchfrr[1173]: [ZCJ3S-SPH5S] staticd state -> down : initial connection attempt failed
Jan 10 20:58:00 sid watchfrr[1173]: [YFT0P-5Q5YX] Forked background command [pid 1174]: /usr/lib/frr/watchfrr.sh restart all
Jan 10 20:58:01 sid frrinit.sh[1187]: 2026/01/10 20:58:01 ZEBRA: [WVJCK-PPMGD][EC 4043309093] generic-netlink-cmd (NS 0) error: Operation not permitted, type=(35), seq=2, pid=1187
Jan 10 20:58:01 sid frrinit.sh[1187]: 2026/01/10 20:58:01 ZEBRA: [KGY44-D47GD][EC 4043309111] Disabling MPLS support (no kernel support)
Jan 10 20:58:01 sid frrinit.sh[1197]: [1197|mgmtd] sending configuration
Jan 10 20:58:01 sid frrinit.sh[1198]: [1198|zebra] sending configuration
Jan 10 20:58:01 sid frrinit.sh[1198]: [1198|zebra] done
Jan 10 20:58:01 sid frrinit.sh[1212]: [1212|watchfrr] sending configuration
Jan 10 20:58:01 sid frrinit.sh[1214]: [1214|staticd] sending configuration
Jan 10 20:58:01 sid frrinit.sh[1197]: [1197|mgmtd] done
Jan 10 20:58:01 sid watchfrr[1173]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Jan 10 20:58:01 sid frrinit.sh[1195]: Waiting for children to finish applying config...
Jan 10 20:58:01 sid staticd[1193]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Jan 10 20:58:01 sid frrinit.sh[1214]: [1214|staticd] done
Jan 10 20:58:01 sid frrinit.sh[1212]: [1212|watchfrr] done
Jan 10 20:58:01 sid watchfrr[1173]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 10 20:58:01 sid watchfrr[1173]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 10 20:58:01 sid watchfrr[1173]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 10 20:58:01 sid watchfrr[1173]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 10 20:58:01 sid frrinit.sh[1164]: Started watchfrr.
Jan 10 20:58:01 sid systemd[1]: Started frr.service - FRRouting.

I haven't spotted anything obvious in the diff between 10.5.0 and 10.5.1, and definitely nothing in the reload script itself.

Version

Hello, this is FRRouting (version 10.5.1).
Copyright 1996-2005 Kunihiro Ishiguro, et al.

How to reproduce

Install frr 10.5.1 on debian sid or ubuntu resolute, and issue systemctl reload frr. Notice the command fails, and exits 1.

Expected behavior

Reload should work as it has before.

Actual behavior

Reload fails, and systemd later on, after a 2min timeout, forcibly restarts frr once more.

Additional context

No response

Checklist

• I have searched the open issues for this bug.
• I have not included sensitive information in this report.

[ton31337]

Could you show the configuration you have? I tried, but I can't reproduce quickly.

[panlinux]

Sure:

root@sid:~# ls -la /etc/frr
total 28
drwx------ 1 frr  frr   106 Jan 12 19:25 .
drwxr-xr-x 1 root root 2004 Jan 12 19:25 ..
-rw-r--r-- 1 root root 4127 Jan  7 12:03 daemons
-rw-r--r-- 1 root root  489 Jan  5 14:45 frr.conf
-rw-r--r-- 1 root root 8667 Jan  7 12:03 support_bundle_commands.conf
-rw-r--r-- 1 root root   32 Jan  7 12:03 vtysh.conf

root@sid:~# cat /etc/frr/frr.conf
# default to using syslog. /etc/rsyslog.d/45-frr.conf places the log in
# /var/log/frr/frr.log
#
# Note:
# FRR's configuration shell, vtysh, dynamically edits the live, in-memory
# configuration while FRR is running. When instructed, vtysh will persist the
# live configuration to this file, overwriting its contents. If you want to
# avoid this, you can edit this file manually before starting FRR, or instruct
# vtysh to write configuration to a different file.
log syslog informational

root@sid:~# cat /etc/frr/daemons 
# This file tells the frr package which daemons to start.
#
# Sample configurations for these daemons can be found in
# /usr/share/doc/frr/examples/.
#
# ATTENTION:
#
# When activating a daemon for the first time, a config file, even if it is
# empty, has to be present *and* be owned by the user and group "frr", else
# the daemon will not be started by /etc/init.d/frr. The permissions should
# be u=rw,g=r,o=.
# When using "vtysh" such a config file is also needed. It should be owned by
# group "frrvty" and set to ug=rw,o= though. Check /etc/pam.d/frr, too.
#
# The watchfrr, zebra and staticd daemons are always started.
#
bgpd=no
ospfd=no
ospf6d=no
ripd=no
ripngd=no
isisd=no
pimd=no
pim6d=no
ldpd=no
nhrpd=no
eigrpd=no
babeld=no
sharpd=no
pbrd=no
bfdd=no
fabricd=no
vrrpd=no
pathd=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"
mgmtd_options="  -A 127.0.0.1"
bgpd_options="   -A 127.0.0.1"
ospfd_options="  -A 127.0.0.1"
ospf6d_options=" -A ::1"
ripd_options="   -A 127.0.0.1"
ripngd_options=" -A ::1"
isisd_options="  -A 127.0.0.1"
pimd_options="   -A 127.0.0.1"
pim6d_options="  -A ::1"
ldpd_options="   -A 127.0.0.1"
nhrpd_options="  -A 127.0.0.1"
eigrpd_options=" -A 127.0.0.1"
babeld_options=" -A 127.0.0.1"
sharpd_options=" -A 127.0.0.1"
pbrd_options="   -A 127.0.0.1"
staticd_options="-A 127.0.0.1"
bfdd_options="   -A 127.0.0.1"
fabricd_options="-A 127.0.0.1"
vrrpd_options="  -A 127.0.0.1"
pathd_options="  -A 127.0.0.1"


# If you want to pass a common option to all daemons, you can use the
# "frr_global_options" variable.
#
#frr_global_options=""


# The list of daemons to watch is automatically generated by the init script.
# This variable can be used to pass options to watchfrr that will be passed
# prior to the daemon list.
#
# To make watchfrr create/join the specified netns, add the the "--netns"
# option here. It will only have an effect in /etc/frr/<somename>/daemons, and
# you need to start FRR with "/usr/lib/frr/frrinit.sh start <somename>".
#
#watchfrr_options=""


# configuration profile
#
#frr_profile="traditional"
#frr_profile="datacenter"


# This is the maximum number of FD's that will be available.  Upon startup this
# is read by the control files and ulimit is called.  Uncomment and use a
# reasonable value for your setup if you are expecting a large number of peers
# in say BGP.
#
#MAX_FDS=1024

# Uncomment this option if you want to run FRR as a non-root user. Note that
# you should know what you are doing since most of the daemons need root
# to work. This could be useful if you want to run FRR in a container
# for instance.
# FRR_NO_ROOT="yes"

# For any daemon, you can specify a "wrap" command to start instead of starting
# the daemon directly. This will simply be prepended to the daemon invocation.
# These variables have the form daemon_wrap, where 'daemon' is the name of the
# daemon (the same pattern as the daemon_options variables).
#
# Note that when daemons are started, they are told to daemonize with the `-d`
# option. This has several implications. For one, the init script expects that
# when it invokes a daemon, the invocation returns immediately. If you add a
# wrap command here, it must comply with this expectation and daemonize as
# well, or the init script will never return. Furthermore, because daemons are
# themselves daemonized with -d, you must ensure that your wrapper command is
# capable of following child processes after a fork() if you need it to do so.
#
# If your desired wrapper does not support daemonization, you can wrap it with
# a utility program that daemonizes programs, such as 'daemonize'. An example
# of this might look like:
#
# bgpd_wrap="/usr/bin/daemonize /usr/bin/mywrapper"
#
# This is particularly useful for programs which record processes but lack
# daemonization options, such as perf and rr.
#
# If you wish to wrap all daemons in the same way, you may set the "all_wrap"
# variable.
#
#all_wrap=""

root@sid:~# cat /etc/frr/support_bundle_commands.conf 
# FRR Support Bundle Command List
# Do Not modify the lines that start with
# PROC_NAME, CMD_LIST_START and CMD_LIST_END
# Add the new command for each process between
# CMD_LIST_START and CMD_LIST_END lines
#
# For system-level ip commands, use CMD_LIST_IP_START and CMD_LIST_IP_END
# These commands will be executed directly with the 'ip' command

# BGP Support Bundle Command List
PROC_NAME:bgp
CMD_LIST_START
show bgp summary
show bgp ipv4 uni
show bgp ipv4 neighbors
show bgp ipv4 summary
show bgp ipv4 statistics

show bgp ipv4 update-groups advertise-queue
show bgp ipv4 update-groups advertised-routes
show bgp ipv4 update-groups packet-queue
show bgp ipv4 update-groups statistics
show bgp peer-group
show bgp memory

show bgp ipv6
show bgp ipv6 neighbors
show bgp ipv6 summary
show bgp ipv6 update-groups advertise-queue
show bgp ipv6 update-groups advertised-routes
show bgp ipv6 update-groups packet-queue
show bgp ipv6 update-groups statistics
show bgp ipv6 statistics
show bgp martian next-hop
show bgp nexthop

show bgp vrf all summary
show bgp vrf all ipv4
show bgp vrf all ipv6
show bgp vrf all ipv4 vpn
show bgp vrf all ipv6 vpn
show bgp vrf all neighbors

show bgp evpn route
show bgp l2vpn evpn route vni all
show bgp l2vpn evpn vni
show bgp l2vpn evpn import-rt
show bgp l2vpn evpn vrf-import-rt
show bgp l2vpn evpn all overlay
show bgp l2vpn evpn summary
show bgp l2vpn evpn route detail
show bgp l2vpn evpn vni remote-ip-hash
show bgp l2vpn evpn vni-svi-hash

show evpn
show evpn arp-cache vni all detail
show evpn mac vni all detail
show evpn next-hops vni all
show evpn rmac vni all
show evpn vni detail

show bgp labelpool summary
show bgp labelpool ledger
show bgp labelpool inuse
show bgp labelpool requests
show bgp labelpool chunks

show bmp
CMD_LIST_END

# Zebra Support Bundle Command List
PROC_NAME:zebra
CMD_LIST_START
show zebra
show zebra client summary
show zebra router table summary
show ip zebra route dump
show ipv6 zebra route dump
show ip nht vrf all
show ipv6 nht vrf all
show ip route vrf all nexthop-group
show ipv6 route vrf all nexthop-group
show ip fib
show ipv6 fib
show nexthop-group rib
show route-map
show mpls table
show mpls fec
show mpls ldp
show mpls pseudowires
show zebra dplane detailed
show zebra dplane provider
show fpm counters
show fpm status
show memory
show interface vrf all
show vrf
show work-queues
show debugging hashtable
show running-config
show event cpu
show event poll
show event timers
show daemons
show version
CMD_LIST_END

# System IP Commands for Zebra (example)
PROC_NAME:zebra
CMD_LIST_IP_START
link show
addr show
route show table all
-6 route show table all
neigh show
rule show
nexthop show
-family mpls route
CMD_LIST_IP_END

# OSPF Support Bundle Command List
PROC_NAME:ospf
CMD_LIST_START
show ip ospf vrf all
show ip ospf vrfs

show ip ospf vrf all interface
show ip ospf vrf all interface traffic
show ip ospf vrf all neighbor
show ip ospf vrf all neighbor detail all
show ip ospf vrf all graceful-restart helper detail

show ip ospf vrf all border-routers
show ip ospf vrf all summary-address detail

show ip ospf vrf all database
show ip ospf vrf all database router
show ip ospf vrf all database network
show ip ospf vrf all database summary
show ip ospf vrf all database asbr-summary
show ip ospf vrf all database external
show ip ospf vrf all database opaque-area
show ip ospf vrf all database opaque-as
show ip ospf vrf all database opaque-link
show ip ospf vrf all database nssa-external
show ip ospf database segment-routing
show ip ospf vrf all database max-age
show ip ospf vrf all database self-originate
show ip ospf vrf all route

show ip ospf mpls ldp-sync
show ip ospf mpls ldp-sync interface all

show ip ospf vrf all mpls-te interface
show ip ospf mpls-te database verbose
show ip ospf mpls-te router

show ip ospf router-info
show ip ospf router-info pce
CMD_LIST_END

# RIP Support Bundle Command List
PROC_NAME:rip
CMD_LIST_START
show ip rip
show ip rip status
CMD_LIST_END

# ISIS Support Bundle Command List
PROC_NAME:isis
CMD_LIST_START
show isis database detail
show isis interface detail
show isis route
show isis mpls ldp-sync
show isis mpls-te database detail
show isis mpls-te interface
show isis mpls-te router
show isis neighbor detail
show isis topology
CMD_LIST_END

# BFD Support Bundle Command List
# PROC_NAME:bfd
# CMD_LIST_START
# CMD_LIST_END

# STATIC Support Bundle Command List
# PROC_NAME:static
# CMD_LIST_START
# CMD_LIST_END

# PIM Support Bundle Command List
PROC_NAME:pim
CMD_LIST_START
show ip igmp vrf all groups detail
show ip igmp vrf all interface detail
show ip igmp vrf all join
show ip igmp vrf all join-group
show ip igmp vrf all proxy
show ip igmp sources
show ip igmp vrf all static-group
show ip igmp statistics

show ip mroute vrf all
show ip multicast vrf all

show ip msdp vrf all mesh-group
show ip msdp vrf all peer
show ip msdp vrf all sa detail

show ip pim vrf all autorp
show ip pim bsm-database
show ip pim bsr
show ip pim bsr candidate-bsr
show ip pim bsr candidate-rp
show ip pim bsr candidate-rp-database
show ip pim bsr groups
show ip pim bsr rp-info
show ip pim channel
show ip pim group-type
show ip pim vrf all interface detail
show ip pim interface traffic
show ip pim vrf all join
show ip pim jp-agg
show ip pim local-membership
show ip pim mlag summary
show ip pim mlag vrf all interface
show ip pim vrf all mlag upstream
show ip pim vrf all neighbor detail
show ip pim nexthop
show ip pim vrf all rp-info
show ip pim vrf all rpf
show ip pim secondary
show ip pim vrf all state
show ip pim statistics
show ip pim vrf all upstream
show ip pim upstream-join-desired
show ip pim upstream-rpf
show ip pim vxlan-groups
CMD_LIST_END

PROC_NAME:pim
CMD_LIST_IP_START
mroute show
-6 mroute show
maddr show
-6 maddr show
CMD_LIST_END

# OSPFv3 Support Bundle Command List
PROC_NAME:ospf6
CMD_LIST_START
show ipv6 ospf6 vrf all
show ipv6 ospf6 vrfs
show ipv6 ospf6 vrf all border-routers
show ipv6 ospf6 vrf all border-routers detail
show ipv6 ospf6 vrf all database
show ipv6 ospf6 vrf all database detail
show ipv6 ospf6 vrf all database dump
show ipv6 ospf6 vrf all database internal
show ipv6 ospf6 vrf all database router detail
show ipv6 ospf6 vrf all database network detail
show ipv6 ospf6 vrf all database inter-prefix detail
show ipv6 ospf6 vrf all database inter-router detail
show ipv6 ospf6 vrf all database intra-prefix detail
show ipv6 ospf6 vrf all database link detail
show ipv6 ospf6 vrf all database as-external detail
show ipv6 ospf6 vrf all database self-originate detail
show ipv6 ospf6 vrf all database type-7 detail
show ipv6 ospf6 vrf all interface
show ipv6 ospf6 vrf all interface prefix
show ipv6 ospf6 vrf all interface traffic
show ipv6 ospf6 vrf all linkstate detail
show ipv6 ospf6 vrf all neighbor
show ipv6 ospf6 vrf all neighbor drchoice
show ipv6 ospf6 vrf all neighbor detail
show ipv6 ospf6 vrf all redistribute
show ipv6 ospf6 vrf all route
show ipv6 ospf6 vrf all route external-1
show ipv6 ospf6 vrf all route external-2
show ipv6 ospf6 vrf all route inter-area
show ipv6 ospf6 vrf all route intra-area
show ipv6 ospf6 vrf all route detail
show ipv6 ospf6 vrf all route summary
show ipv6 ospf6 vrf all spf tree
show ipv6 ospf6 vrf all summary-address detail
show ipv6 ospf6 zebra
CMD_LIST_END

#PIMv6 Support Bundle Command List
PROC_NAME:pim6
CMD_LIST_START
show ipv6 mld vrf all interface detail
show ipv6 mld vrf all statistics
show ipv6 mld vrf all joins detail
show ipv6 mld vrf all groups

show ipv6 mroute vrf all
show ipv6 multicast vrf all

show ipv6 pim bsm-database
show ipv6 pim bsr
show ipv6 pim bsr candidate-bsr
show ipv6 pim bsr candidate-rp
show ipv6 pim bsr candidate-rp-database
show ipv6 pim bsr groups
show ipv6 pim bsr rp-info
show ipv6 pim channel
show ipv6 pim vrf all interface detail
show ipv6 pim interface traffic
show ipv6 pim vrf all join
show ipv6 pim jp-agg
show ipv6 pim local-membership
show ipv6 pim nexthop
show ipv6 pim vrf all neighbor detail
show ipv6 pim vrf all rp-info
show ipv6 pim vrf all rpf
show ipv6 pim secondary
show ipv6 pim vrf all state
show ipv6 pim statistics
show ipv6 pim vrf all upstream
show ipv6 pim upstream-join-desired
show ipv6 pim upstream-rpf
CMD_LIST_END

#MGMT Support Bundle Command List
PROC_NAME:mgmt
CMD_LIST_START
show mgmt backend-adapter all
show mgmt backend-yang-xpath-registry
show mgmt commit-history
show mgmt datastore all
show mgmt frontend-adapter all detail
show mgmt get-data /* datastore candidate only-config
show mgmt get-data /* datastore running only-config
show mgmt get-data /* datastore operational
show mgmt transaction all
show mgmt yang-xpath-subscription /
CMD_LIST_END

root@sid:~# cat /etc/frr/vtysh.conf 
service integrated-vtysh-config

[panlinux]

With that config, we have:

root         667  0.0  0.0  10132  4092 ?        Ss   19:25   0:00 /usr/lib/frr/watchfrr -d mgmtd zebra staticd
frr          677  0.0  0.0  15524  9256 ?        Ss   19:25   0:00 /usr/lib/frr/mgmtd -d -F traditional -A 127.0.0.1
frr          679  0.0  0.0 245728 10564 ?        Ssl  19:25   0:00 /usr/lib/frr/zebra -d -F traditional -A 127.0.0.1 -s 90000000
frr          684  0.0  0.0  11664  5808 ?        Ss   19:25   0:00 /usr/lib/frr/staticd -d -F traditional -A 127.0.0.1

root@sid:~# systemctl status frr
● frr.service - FRRouting
     Loaded: loaded (/usr/lib/systemd/system/frr.service; enabled; preset: enabled)
    Drop-In: /run/systemd/system/service.d
             └─zzz-lxc-service.conf
     Active: active (running) since Mon 2026-01-12 19:25:54 UTC; 2min 59s ago
 Invocation: c6be0275ae66407db44b1c53b7c86e0e
       Docs: https://frrouting.readthedocs.io/en/latest/setup.html
    Process: 658 ExecStart=/usr/lib/frr/frrinit.sh start (code=exited, status=0/SUCCESS)
   Main PID: 667 (watchfrr)
     Status: "FRR Operational"
      Tasks: 8 (limit: 17968)
     Memory: 15.6M (peak: 31.5M)
        CPU: 272ms
     CGroup: /system.slice/frr.service
             ├─667 /usr/lib/frr/watchfrr -d mgmtd zebra staticd
             ├─677 /usr/lib/frr/mgmtd -d -F traditional -A 127.0.0.1
             ├─679 /usr/lib/frr/zebra -d -F traditional -A 127.0.0.1 -s 90000000
             └─684 /usr/lib/frr/staticd -d -F traditional -A 127.0.0.1

Jan 12 19:25:54 sid frrinit.sh[686]: Waiting for children to finish applying config...
Jan 12 19:25:54 sid frrinit.sh[703]: [703|watchfrr] done
Jan 12 19:25:54 sid staticd[684]: [VTVCM-Y2NW3] Configuration Read in Took: 00:00:00
Jan 12 19:25:54 sid frrinit.sh[705]: [705|staticd] done
Jan 12 19:25:54 sid watchfrr[667]: [QDG3Y-BY5TN] mgmtd state -> up : connect succeeded
Jan 12 19:25:54 sid watchfrr[667]: [QDG3Y-BY5TN] zebra state -> up : connect succeeded
Jan 12 19:25:54 sid watchfrr[667]: [QDG3Y-BY5TN] staticd state -> up : connect succeeded
Jan 12 19:25:54 sid watchfrr[667]: [KWE5Q-QNGFC] all daemons up, doing startup-complete notify
Jan 12 19:25:54 sid frrinit.sh[658]: Started watchfrr.
Jan 12 19:25:54 sid systemd[1]: Started frr.service - FRRouting.

And:

root@sid:~# systemctl reload frr
Job for frr.service canceled.
root@sid:~# echo $?
1
root@sid:~# 

[panlinux]

It is now also failing with 10.5.0. I'm thinking it's a systemd update that caused this. I don't know yet exactly when it stopped working, just that with systemd 259.1 it's showing this failure. I updated the title, and will try to correct the text in the description to reflect this new update.