Weird inactive interface in route table on frr-10.2

[bocmanpy]

Description

On new version frr-10.2 i getting weird case.
Interface po1 is UP and you can see it from ip link and show interface command.
But in show ip route routes belonging that interface saying it's linkdown/inactive.

I'm downgraded to frr-10.1 and that problem won't reproducing.
Restarting frr-10.2 helping interface become normal in route table.

Version

FRRouting 10.2 (hostname) on Linux(4.18.0-532.el8.x86_64).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
configured with:
    '--prefix=/usr' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--localstatedir=/run' '--libdir=/usr/lib64/frr' '--libexecdir=/usr/libexec/frr' '--with-moduledir=/usr/lib64/frr/modules' '--with-crypto=openssl' '--with-libpam' '--enable-multipath=256' '--enable-user=frr' '--enable-group=frr' '--enable-vty-group=frrvty' '--enable-configfile-mask=0640' '--enable-logfile-mask=0640' '--enable-config-rollbacks' '--enable-pcre2posix' '--enable-rpki' '--enable-fpm' '--disable-babeld' '--disable-pimd' '--disable-pim6d' '--disable-isisd' '--disable-ripd' '--disable-ripngd' '--disable-ldpd' '--disable-nhrpd' '--disable-eigrpd' 'runstatedir=/run' '--disable-static' 'PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'

How to reproduce

1. On frr 10.2 use similar frr.conf

frr.conf

!
ip route 10.10.0.0/16 10.10.3.254 po1
ip route 10.24.0.0/16 10.24.3.254 vlan24
ip route 10.25.0.0/16 10.25.3.254 vlan25
!
interface po1
 pbr-policy po1
exit
!
interface vlan24
 pbr-policy vlan24
exit
!
interface vlan25
 pbr-policy vlan25
exit
!
pbr-map po1 seq 5
 match src-ip 10.10.3.24/32
 set nexthop-group po1
exit
!
pbr-map vlan24 seq 5
 match src-ip 10.24.3.24/32
 set nexthop-group vlan24
exit
!
pbr-map vlan25 seq 5
 match src-ip 10.25.3.16/32
 set nexthop-group vlan25
exit
!
nexthop-group po1
 nexthop 10.10.3.254 po1
exit
!
nexthop-group vlan24
 nexthop 10.24.3.254 vlan24
exit
!
nexthop-group vlan25
 nexthop 10.25.3.254 vlan25
exit
!
access-list vty remark Disable connections to vtysh from non localhost
access-list vty seq 5 permit 127.0.0.1/8
access-list vty seq 10 deny any
!
line vty
 access-class vty
exit
!

Expected behavior

Interface should be active in route table and related routes was added.

Actual behavior

Interface in route table marked as linkdown/inactive and related routes doesn't adding to route table.
Here is debug logs from 10.1 and 10.2 versions.
frr_10.1_debug.log
frr_10.2_debug.log

Additional context

The main problem is that is not 100% reproducible.
I have a same(only subnets different) configuration that is working fine with frr-10.2

Checklist

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

[k0ste]

@anlancs can be #17544 or #17403 is fix this issue? Or is another bug? Thanks

[ton31337]

@anlancs is this familiar to you?

[anlancs]

No, this is different with my two PRs.
In this issue, the nexthop seems wrongly inactive and not 100%. I haven’t met this issue. :(