When a node is the funder of a channel whose funding tx never
confirms — broadcast rejected at ATMP, evicted from mempool, or
simply never broadcast — the channel record stays in
CHANNELD_AWAITING_LOCKIN indefinitely. CLN already implements the
BOLT 2 fundee-side forget rule (PR #1468,
--max-funding-unconfirmed-blocks, default 2016) but has no
equivalent on the funder side. Once the would-be funding inputs are
spent in other transactions the funding tx is permanently
unconfirmable, yet the channel record remains.
Similar to #9102
Concrete instance
More details about the following channel can be found in clboss
issue #312.
@ksedgwic operates the funder.
Channel
channel_id: 0b12c289525bf5593e932eca14277dbcb0921f125731b586d3a75d2f4b328ddefunding_txid: de8d324b2f5da7d386b53157121f92b0bc7d2714ca2e933e59f55b5289c2120b — never confirmed on chain- opener: us; closer: us
- created 2025-10-14; broadcast rejected by bitcoind at 22:46:28 UTC
with min relay fee not met, 507 < 511; spenderp ran cleanup
(unreserveinputs) but the channel record on lightningd's side
persisted
- still in
AWAITING_UNILATERAL (a later close attempt also could not
broadcast — its commitment input is the never-existing funding
output) on our node as of 2026-05-04, ~6.5 months later
- All 7 of the funding tx's input UTXOs are now spent in other
transactions, so the funding tx can never confirm
Reproducer
Reproduced by #9113
When a node is the funder of a channel whose funding tx never
confirms — broadcast rejected at ATMP, evicted from mempool, or
simply never broadcast — the channel record stays in
CHANNELD_AWAITING_LOCKINindefinitely. CLN already implements theBOLT 2 fundee-side forget rule (PR #1468,
--max-funding-unconfirmed-blocks, default 2016) but has noequivalent on the funder side. Once the would-be funding inputs are
spent in other transactions the funding tx is permanently
unconfirmable, yet the channel record remains.
Similar to #9102
Concrete instance
More details about the following channel can be found in clboss
issue #312.
@ksedgwic operates the funder.
Channel
channel_id:0b12c289525bf5593e932eca14277dbcb0921f125731b586d3a75d2f4b328ddefunding_txid:de8d324b2f5da7d386b53157121f92b0bc7d2714ca2e933e59f55b5289c2120b— never confirmed on chainwith
min relay fee not met, 507 < 511; spenderp ran cleanup(
unreserveinputs) but the channel record on lightningd's sidepersisted
AWAITING_UNILATERAL(a later close attempt also could notbroadcast — its commitment input is the never-existing funding
output) on our node as of 2026-05-04, ~6.5 months later
transactions, so the funding tx can never confirm
Reproducer
Reproduced by #9113