Hi Daniel.
bgpd crashed, watchfrr restarted it; bgpd crashed again, rinse, repeat.
Journalctl shows:
Jul 25 16:32:43 ivernia watchfrr[1226]: [T58XM-TP956][EC 268435457] bgpd state
-> unresponsive : no response yet to ping sent 90 seconds ago
Jul 25 16:32:43 ivernia watchfrr[1226]: [YFT0P-5Q5YX] Forked background command
[pid 39662]: /usr/lib/frr/watchfrr.sh restart bgpd
Jul 25 16:33:13 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : unexpected read error: Connection reset by peer
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: showing active allocations in
memory group libfrr
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Hash
: 20 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Hash Index
: 10 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Link List
: 14 * 40
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Link Node
: 16 * 24
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Ring buffer
: 12 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Stream FIFO
: 12 * 72
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Route table
: 66 * 56
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Route node
: 2008999 * 120
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Typed-hash bucket
: 2 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Work queue
: 6 * 144
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Work queue item
: 2832564 * 24
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Work queue name
string : 6 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: showing active allocations in
memory group bgpd
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP EVPN instance
information : 1 * 64
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP instance
: 1 * 12496
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP Name data
: 7 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP peer
: 6 * 24056
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP peer connection
: 6 * 360
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP peer hostname
: 6 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: Peer description
: 5 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP table
: 66 * 56
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP node
: 1095682 * 128
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP connected
: 2 * 4
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP node clear queue
: 2832564 * 8
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP PBR Context
: 1 * 32
Jul 25 16:33:13 ivernia frrinit.sh[1249]: bgpd: memstats: BGP MetaQ
: 4 * (variably sized)
Jul 25 16:33:13 ivernia frrinit.sh[39663]: /etc/frr/frr.conf does not exist;
skipping config apply
Jul 25 16:33:13 ivernia watchfrr[1226]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 25 16:33:14 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : read returned EOF
Jul 25 16:33:14 ivernia watchfrr[1226]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 25 16:33:14 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : unexpected read error: Connection reset by peer
Jul 25 16:34:14 ivernia watchfrr[1226]: [YFT0P-5Q5YX] Forked background command
[pid 40037]: /usr/lib/frr/watchfrr.sh restart bgpd
Jul 25 16:34:14 ivernia frrinit.sh[40038]: Cannot stop bgpd: pid 39992 not
running
Jul 25 16:34:14 ivernia frrinit.sh[40038]: /etc/frr/frr.conf does not exist;
skipping config apply
Jul 25 16:34:14 ivernia watchfrr[1226]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 25 16:34:14 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : read returned EOF
And from there it just keeps crashing and restarting until I did a
systemctl restart frr:
Jul 27 09:58:34 ivernia watchfrr[1226]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 27 09:58:34 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : read returned EOF
Jul 27 10:08:39 ivernia watchfrr[1226]: [YFT0P-5Q5YX] Forked background command
[pid 238320]: /usr/lib/frr/watchfrr.sh restart bgpd
Jul 27 10:08:39 ivernia frrinit.sh[238321]: Cannot stop bgpd: pid 236766 not
running
Jul 27 10:08:39 ivernia frrinit.sh[238321]: /etc/frr/frr.conf does not exist;
skipping config apply
Jul 27 10:08:39 ivernia watchfrr[1226]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 27 10:08:39 ivernia watchfrr[1226]: [HD38Q-0HBRT][EC 268435457] bgpd state
-> down : read returned EOF
Jul 27 10:08:55 ivernia systemd[1]: Stopping frr.service - FRRouting...
Jul 27 10:08:55 ivernia watchfrr[1226]: [NG1AJ-FP2TQ] Terminating on signal
Jul 27 10:08:56 ivernia frrinit.sh[238339]: Stopped watchfrr.
Jul 27 10:08:56 ivernia frrinit.sh[238368]: Cannot stop bgpd: pid 238329 not
running ... failed!
Jul 27 10:08:56 ivernia frrinit.sh[238369]: Stopped zebra.
Jul 27 10:08:56 ivernia frrinit.sh[238367]: Stopped staticd.
Jul 27 10:08:56 ivernia frrinit.sh[238371]: Stopped mgmtd.
Jul 27 10:08:56 ivernia systemd[1]: frr.service: Deactivated successfully.
Jul 27 10:08:56 ivernia systemd[1]: Stopped frr.service - FRRouting.
Jul 27 10:08:56 ivernia systemd[1]: frr.service: Consumed 17h 8min 57.650s CPU
time, 2.5G memory peak.
Jul 27 10:08:56 ivernia systemd[1]: Starting frr.service - FRRouting...
Jul 27 10:08:56 ivernia frrinit.sh[238383]: Starting watchfrr with command: '
/usr/lib/frr/watchfrr -d mgmtd zebra bgpd staticd'.
Jul 27 10:08:56 ivernia watchfrr[238393]: [T83RR-8SM5G] watchfrr 10.6.1
starting: vty@0
Jul 27 10:08:56 ivernia watchfrr[238393]: [ZCJ3S-SPH5S] mgmtd state -> down :
initial connection attempt failed
Jul 27 10:08:56 ivernia watchfrr[238393]: [ZCJ3S-SPH5S] zebra state -> down :
initial connection attempt failed
Jul 27 10:08:56 ivernia watchfrr[238393]: [ZCJ3S-SPH5S] bgpd state -> down :
initial connection attempt failed
Jul 27 10:08:56 ivernia watchfrr[238393]: [ZCJ3S-SPH5S] staticd state -> down :
initial connection attempt failed
Jul 27 10:08:56 ivernia watchfrr[238393]: [YFT0P-5Q5YX] Forked background
command [pid 238394]: /usr/lib/frr/watchfrr.sh restart all
Jul 27 10:08:56 ivernia frrinit.sh[238406]: 2026/07/27 10:08:56 ZEBRA:
[QBKSZ-0KHCW][EC 4043309138] Disabling MPLS support (no kernel support)
Jul 27 10:08:56 ivernia frrinit.sh[238395]: /etc/frr/frr.conf does not exist;
skipping config apply
Jul 27 10:08:56 ivernia watchfrr.sh[238431]: /etc/frr/frr.conf does not exist;
skipping config apply
Jul 27 10:08:56 ivernia watchfrr[238393]: [QDG3Y-BY5TN] mgmtd state -> up :
connect succeeded
Jul 27 10:08:56 ivernia watchfrr[238393]: [QDG3Y-BY5TN] zebra state -> up :
connect succeeded
Jul 27 10:08:56 ivernia watchfrr[238393]: [QDG3Y-BY5TN] bgpd state -> up :
connect succeeded
Jul 27 10:08:56 ivernia watchfrr[238393]: [QDG3Y-BY5TN] staticd state -> up :
connect succeeded
Jul 27 10:08:56 ivernia watchfrr[238393]: [KWE5Q-QNGFC] all daemons up, doing
startup-complete notify
Jul 27 10:08:56 ivernia frrinit.sh[238383]: Started watchfrr.
Jul 27 10:08:56 ivernia systemd[1]: Started frr.service - FRRouting.
Now it all seems to be running ok.
At the same time I find this in the bgpd.log:
2026/07/25 16:32:58 BGP: [ZW1GY-R46JE] Terminating on signal
2026/07/25 16:32:59 BGP: [PXVXG-TFNNT] %ADJCHANGE: neighbor 10.27.255.29(bgpd)
in vrf default Down Neighbor deleted
2026/07/25 16:32:59 BGP: [PXVXG-TFNNT] %ADJCHANGE: neighbor
89.202.138.113(Unknown) in vrf default Down Neighbor deleted
2026/07/25 16:33:00 BGP: [PXVXG-TFNNT] %ADJCHANGE: neighbor
192.168.130.254(bgpd) in vrf default Down Neighbor deleted
2026/07/25 16:33:01 BGP: [PXVXG-TFNNT] %ADJCHANGE: neighbor
193.188.249.254(bgpd) in vrf default Down Neighbor deleted
2026/07/25 16:33:02 BGP: [PXVXG-TFNNT] %ADJCHANGE: neighbor
217.117.144.57(Unknown) in vrf default Down Neighbor deleted
2026/07/25 16:33:13 BGP: [SHWNK-NWT5S][EC 100663304] Command returned
Incomplete on config line 11: no debug bgp
2026/07/25 16:33:13 BGP: [SHWNK-NWT5S][EC 100663304] No such command on config
line 60: no synchronization
2026/07/25 16:33:13 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/25 16:33:13 BGP: [RF6RD-ZCBTC][EC 100663311] &(struct stream):
0x561da35ca660, size: 165016, getp: 81, endp: 84
2026/07/25 16:33:13 BGP: Backtrace:
2026/07/25 16:33:14 BGP: stream_get2+0x101 7f6d88f1a2f1
7ffe517d4170 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: ? 7f6d88f3ca4a
7ffe517d41a0 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: ? 7f6d88f3cb00
7ffe517d41e0 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: ? 7f6d88f3da1c
7ffe517d4230 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: event_call+0xac 7f6d88f27f1c
7ffe517d4280 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: frr_run+0xc0 7f6d88ec6510
7ffe517d43c0 /usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at
0x7f6d88e00000)
2026/07/25 16:33:14 BGP: main+0x3d6 561d72be1c46
7ffe517d44e0 /usr/lib/frr/bgpd (mapped at 0x561d72af3000)
2026/07/25 16:33:14 BGP: ? 7f6d88c21ca8
7ffe517d4570 /lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
2026/07/25 16:33:14 BGP: __libc_start_main+0x85 7f6d88c21d65
7ffe517d4610 /lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
2026/07/25 16:33:14 BGP: _start+0x21 561d72be4db1
7ffe517d4660 /usr/lib/frr/bgpd (mapped at 0x561d72af3000)
2026/07/25 16:33:14 BGP: [ND9C6-S6XT9] Could not parse interface values;
aborting
2026/07/25 16:33:14 BGP: ../lib/zclient.c:3090: zebra_interface_if_set_value(): assertion
(!"Failed to parse interface values") failed
BGP: Received signal 6 at 1784989994 (si_addr 0x7200009c38, PC 0x7f6d88c8c95c);
aborting...
BGP: zlog_signal+0xf7 7f6d88ecf8c7 7ffe517d3770
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: ? 7f6d88f14063 7ffe517d38b0
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: ? 7f6d88c37df0 7ffe517d3a00
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: ---- signal ----
BGP: ? 7f6d88c8c95c 7ffe517d3fa0
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: gsignal+0x12 7f6d88c37cc2 7ffe517d3fe0
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: abort+0x22 7f6d88c204ac 7ffe517d3ff0
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: _zlog_assert_failed+0xed 7f6d88f4783d 7ffe517d40b0
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: ? 7f6d88f3ca73 7ffe517d41a0
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: ? 7f6d88f3cb00 7ffe517d41e0
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: ? 7f6d88f3da1c 7ffe517d4230
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: event_call+0xac 7f6d88f27f1c 7ffe517d4280
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: frr_run+0xc0 7f6d88ec6510 7ffe517d43c0
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0 (mapped at 0x7f6d88e00000)
BGP: main+0x3d6 561d72be1c46 7ffe517d44e0
/usr/lib/frr/bgpd (mapped at 0x561d72af3000)
BGP: ? 7f6d88c21ca8 7ffe517d4570
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: __libc_start_main+0x85 7f6d88c21d65 7ffe517d4610
/lib/x86_64-linux-gnu/libc.so.6 (mapped at 0x7f6d88bf8000)
BGP: _start+0x21 561d72be4db1 7ffe517d4660
/usr/lib/frr/bgpd (mapped at 0x561d72af3000)
BGP: in thread zclient_read scheduled from ../lib/zclient.c:5021 zclient_event()
The "stream_get2: Attempt to get out of bounds" crash happens every time
bgpd is restarted:
2026/07/25 16:33:13 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/25 16:34:14 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/25 16:36:19 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
...
2026/07/26 23:46:15 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/26 23:56:15 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/27 00:06:16 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
2026/07/27 00:16:17 BGP: [S48XV-GT1WC][EC 100663311] stream_get2: Attempt to
get out of bounds
...
Until I restart frr.
--
John Hughes, CalvaEDI -- an Esker company.
