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Ran 27 Nov 2025 02:25PM UTC

Files 88

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Committed 27 Nov 2025 02:15PM UTC coverage: 62.183% (-0.02%) from 62.206%

Job # 5461428980678656.1

Build Type

Pull #10325

CirrusCI

Committed by

f321x

Commit Message

swaps: fix race when doing reverse swap

There is a race when doing a reverse swap using gossip with multiple
lightning channels.
If we do a swap with a larger amount, suggest_splits might overallocate
split amounts for a channel as the pathfinding of both invoices runs
concurrently and before acutal htlcs that reduce the channels balance
have been added to the channel yet. This will then result in a "not
enough balance" PaymentFailure once we try to send the htlcs.

Adding a little sleep between the different payments fixes this, a
conceptual fix probably would need larger changes in the splitting logic
by reserving the amount on a channel that will soon get sent?

Pull Request Pull Request #10325: swaps: fix race when doing reverse swap

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spesmilo / electrum / 5461428980678656 / 1
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master: 63%

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