Hii, thanks a lot for the detailed bug report and patch. We will look into it and fix it in the next release. At a first glance it really looks like a regression that sneaked to the release, because of our unfinished BMP test suit. Thanks again for your reporting effort, it helps a lot. Regards, David David Petera (he/him) | BIRD Tech Support | CZ.NIC, z.s.p.o. On 6/11/26 17:43, Yifei Sun wrote:
Good afternoon, the 2 issues I reported last week (e038bf6 and 371531d) was resolved on my side in 3.3.1. Thank you!
Today in CI, I'm seeing some assertion throws that affects both 3.3.0 and 3.3.1 with BMP (traces also in the linked CI log):
- https://github.com/stepbrobd/rfm/actions/runs/27352866052/job/80819677363#st... - https://github.com/stepbrobd/rfm/actions/runs/27347885470/job/80814124422#st...
Relevant config:
- https://github.com/stepbrobd/rfm/blob/187c61620b3af6ec77e1cc730c6b6b37d174d2...
I applied the same patch on 3.3.1 locally to unblock CI, and the current patch is based on thread-next
bgp_create_update_bmp() encodes routes for BMP using a temporary bucket allocated on stack. Such buckets are not allocated from the bucket slab and have no ID assigned, so the assert at the beginning of bgp_delete_from_bucket() fails as soon as the NLRI encoder pops the prefix, aborting the daemon on the first route monitoring message that carries a real prefix.
On BIRD 3.3.1:
Assertion 'b->my_id' failed at proto/bgp/attrs.c:2020 Temporary BMP buckets always hold exactly one prefix and take the single-prefix path, which does not use the bucket ID at all, so allow them through the assert.
Introduced in 9fa3e89476ed53b6a9d41931a8cdf9a8c675be27
"BGP: Compacting export prefix buckets" --- proto/bgp/attrs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c index 6c38d4955..ee893d2c1 100644 --- a/proto/bgp/attrs.c +++ b/proto/bgp/attrs.c @@ -2063,7 +2063,7 @@ bgp_delete_from_bucket(struct bgp_ptx_private *c, struct bgp_bucket *b, u32 id) bgp_bucket_consistency(b); #endif
- ASSERT_DIE(b->my_id); + ASSERT_DIE(b->my_id || b->bmp); u32 row_num = BUCKET_PREFIX_ROW(id); u32 pos = BUCKET_PREFIX_POS(id); ASSERT_DIE(b->last_pref_id);