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<p>Hello Matt,</p>
<p>thanks for this, i’m expecting to check this soon. Do i understand
correctly that this happens when BIRD crashes and leaves routes behind
in the kernel table, and then you re-start? Is there by any chance a
possibility to get the core and/or the config file from you, please?</p>
<p>Thanks!<br />
Maria</p>
<p>On Mon, Oct 06, 2025 at 10:43:52AM -0400, Matt Corallo wrote:</p>
<blockquote>
<p>Thanks for all the work on bird3. It looks like 3.1.4 is much more
stable than past releases, however I still get a crash if I start it
while a routing table that bird is responsible for has stale entries
left over from a past run which crashed. I now see</p>
<p>#0 __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44
#1 0x00007ffff7dd99ff in __pthread_kill_internal
(threadid=<optimized out>, signo=6) at ./nptl/pthread_kill.c:89 #2
0x00007ffff7d84cc2 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26 #3 0x00007ffff7d6d4ac in __GI_abort () at
./stdlib/abort.c:73 #4 0x000055555566044c in bug
(msg=msg@entry=0x555555670ee0 “Assertion ‘%s’ failed at %s:%d”) at
sysdep/unix/log.c:412 #5 0x00005555555ebd92 in rt_next_hop_update_rte
(old=0x7fffc74f2038, new=0x7ffff6a5d160) at nest/rt-table.c:4120 #6
rt_next_hop_update_net (tab=<optimized out>, ni=<optimized out>,
n=<optimized out>) at nest/rt-table.c:4357 #7 rt_next_hop_update
(_tab=<optimized out>) at nest/rt-table.c:4579 #8 0x00005555555ac0a4 in
ev_run_list_limited (l=l@entry=0x5555557da288, limit=4294967294,
limit@entry=4294967295) at lib/event.c:338 #9 0x000055555565d64c in
birdloop_run (_loop=0x5555557da1b0) at sysdep/unix/io-loop.c:1836 #10
0x00005555555ac0a4 in ev_run_list_limited (l=0x5555558cce78,
limit=4294967283, limit@entry=4294967295) at lib/event.c:338 #11
0x000055555565b40f in bird_thread_main (arg=0x5555558cd0d0) at
sysdep/unix/io-loop.c:952 #12 0x00007ffff7dd7b7b in start_thread
(arg=<optimized out>) at ./nptl/pthread_create.c:448 #13
0x00007ffff7e557b8 in <strong>GI</strong>_clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78</p>
</blockquote>
<p>–<br />
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.</p>
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