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backport: bitcoin#26514, #27053, #27106, #27127, #27146, #27469, #27786 - #7855
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30a3230 script: remove out-of-date snprintf TODO (Jon Atack) 0e01514 net: remove orphaned CSubNet::SanityCheck() (Jon Atack) Pull request description: `CSubNet::SanityCheck()` was added in bitcoin#20140, and not removed in bitcoin#22570 when it became orphaned code. Also, remove an out-of-date `snprintf` TODO that was resolved in bitcoin#27036, and fix up 2 words to make the spelling linter green again. ACKs for top commit: fanquake: ACK 30a3230 pinheadmz: ACK 30a3230 brunoerg: crACK 30a3230 Tree-SHA512: f91a2a5af902d3b82ab496f19deeac17d58dbf72a8016e880ea61ad858b66e7ea0ae70b964c4032018eb3252cc34ac5fea163131c6a7f1baf87fc9ec9b5833d8 Co-authored-by: fanquake <fanquake@gmail.com>
…-dependence.sh
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⛔ Final review complete — 1 blocking finding(s) (commit 6dd4b29) |
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Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review. WalkthroughThe changes add maximum chain time to block information and cache wallet birth times from script managers. Wallet block scanning and rescan start selection use the cached birth time. Address decoding returns more specific errors, and Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Sequence Diagram(s)sequenceDiagram
participant BlockIndex
participant MakeBlockInfo
participant BlockInfo
participant ScriptPubKeyMan
participant CWallet
BlockIndex->>MakeBlockInfo: Provide block index
MakeBlockInfo->>BlockInfo: Set chain_time_max
ScriptPubKeyMan->>CWallet: NotifyFirstKeyTimeChanged
CWallet->>CWallet: Lower cached birth time when earlier
BlockInfo->>CWallet: Deliver connected-block information
CWallet->>CWallet: Compare chain_time_max with birth-time threshold
Merge Risk: 🟡 Moderate · up to Re-importing a descriptor with an earlier timestamp can leave historical transactions out of the wallet’s scans and produce incomplete history or balances. Resolve the stale-cutoff behavior before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 6.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 30 functions across 14 files. (1 skipped: 1 unsupported.)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
Review comments at @src/wallet/wallet.cpp:
- Line 4387: In AddWalletDescriptor, update the cached birth time for an
existing descriptor manager by calling FirstKeyTimeChanged with spk_man and
desc.creation_time after UpdateWalletDescriptor; leave the new-manager insertion
path unchanged.
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📒 Files selected for processing (17)
configure.acsrc/Makefile.amsrc/bench/wallet_balance.cppsrc/blockencodings.hsrc/interfaces/chain.hsrc/kernel/chain.cppsrc/key_io.cppsrc/rpc/mempool.cppsrc/wallet/scriptpubkeyman.cppsrc/wallet/scriptpubkeyman.hsrc/wallet/test/fuzz/notifications.cppsrc/wallet/wallet.cppsrc/wallet/wallet.htest/functional/rpc_invalid_address_message.pytest/functional/wallet_basic.pytest/functional/wallet_change_address.pytest/lint/lint-locale-dependence.py
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Preliminary review — Phase 1 blocker gate
Both supplied findings are confirmed against head aaad1a4 and the failed CI job logs. The backport introduces a static-link failure for dash-chainstate and an argument-comment mismatch that fails the multiprocess clang-tidy gate. Validation was static; several other CI jobs were still pending in the supplied snapshot.
Validated blockers were found by the Phase-1 review and confirmed by a fresh verifier. Phase 2 is deferred until a fresh same-head revalidation clears the blocker gate.
🔴 2 blocking
Review provenance
Source: reviewer 1: muse-spark-1.3-contributor (agent: phase1-reviewer, role: general); final verifier: gpt-6.1-sol (agent: sol-gate-verifier, role: verifier)
- Triage:
normalbygpt-6.1-sol(effort low) — The diff combines wallet birthday-based scan skipping, a contained change-address reuse fix, address error improvements, and build/RPC/test updates, without a large or intricate change to a critical surface. - Phase 1 reviewers:
muse-spark-1.3-contributor— general (completed, effort xhigh); agentphase1-reviewer - Phase 1 model:
muse-spark-1.3-contributor— not quota-gated; passed overgemini-3.8-flash-high(antigravity below 15% reserve: weekly 15% left, 5h 100% left),glm-5.3-flash(not used above high effort; tier asks max) - Fresh verifier:
gpt-6.1-sol— verifier; agentsol-gate-verifier - Phase 2 reviewers: not run (deferred by blocker gate)
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `src/Makefile.am`:
- [BLOCKING] src/Makefile.am:1225-1227: dash-chainstate missing libdashbls link dependency breaks nowallet build
The backport forces dash-chainstate to link statically but explicitly carries only the secp256k1 subproject dependency. Dash's kernel also depends on $(LIBDASHBLS), as shown by libdashkernel_la_LIBADD at line 1235. In CI job 113380466615, the dash-chainstate link command includes libdashkernel.a and libsecp256k1.a but no dashbls library, then fails with undefined references to BLS and RELIC symbols including ep_set_infty, ep2_set_infty, and bls::G1Element::SerializeToArray. Add $(LIBDASHBLS) to the explicit indirect dependencies so this newly static link preserves Dash's kernel dependencies.
In `src/rpc/mempool.cpp`:
- [BLOCKING] src/rpc/mempool.cpp:844: Argument-comment name does not match Dash's BroadcastTransaction parameter
The newly added /*max_tx_fee=*/ comment does not match the fourth parameter's name, highfee, in src/node/transaction.h:44. Although the implementation calls that parameter max_tx_fee, clang-tidy checks this call against the visible declaration. CI job 113383243758 reports this exact mismatch at rpc/mempool.cpp:844 as bugprone-argument-comment with warnings treated as errors, failing the multiprocess build gate. Rename the comment to match the declaration.
| # libtool is unable to calculate this indirect dependency, presumably because it's a subproject. | ||
| # libsecp256k1 only needs to be linked in when libdashkernel is static. | ||
| dash_chainstate_LDADD += $(LIBSECP256K1) |
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✅ Resolved at
6dd4b293; see the replies below.
🔴 Blocking: dash-chainstate missing libdashbls link dependency breaks nowallet build
The backport forces dash-chainstate to link statically but explicitly carries only the secp256k1 subproject dependency. Dash's kernel also depends on
| # libtool is unable to calculate this indirect dependency, presumably because it's a subproject. | |
| # libsecp256k1 only needs to be linked in when libdashkernel is static. | |
| dash_chainstate_LDADD += $(LIBSECP256K1) | |
| # libtool is unable to calculate these indirect dependencies, presumably because they're subprojects. | |
| # libsecp256k1 and libdashbls only need to be linked in when libdashkernel is static. | |
| dash_chainstate_LDADD += $(LIBSECP256K1) $(LIBDASHBLS) |
source: muse-spark-1.3-contributor (phase1-reviewer: general)
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Resolved (re-reviewed at 6dd4b293): You added
| size_t num_submitted{0}; | ||
| bilingual_str err_string; | ||
| const auto err = BroadcastTransaction(node, tx, err_string, 0, true, true); | ||
| const auto err = BroadcastTransaction(node, tx, err_string, /*max_tx_fee=*/0, /*relay=*/true, /*wait_callback=*/true); |
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✅ Resolved at
6dd4b293; see the replies below.
🔴 Blocking: Argument-comment name does not match Dash's BroadcastTransaction parameter
The newly added /max_tx_fee=/ comment does not match the fourth parameter's name, highfee, in src/node/transaction.h:44. Although the implementation calls that parameter max_tx_fee, clang-tidy checks this call against the visible declaration. CI job 113383243758 reports this exact mismatch at rpc/mempool.cpp:844 as bugprone-argument-comment with warnings treated as errors, failing the multiprocess build gate. Rename the comment to match the declaration.
| const auto err = BroadcastTransaction(node, tx, err_string, /*max_tx_fee=*/0, /*relay=*/true, /*wait_callback=*/true); | |
| const auto err = BroadcastTransaction(node, tx, err_string, /*highfee=*/0, /*relay=*/true, /*wait_callback=*/true); |
source: muse-spark-1.3-contributor (phase1-reviewer: general)
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Resolved (re-reviewed at 6dd4b293): Your updated /highfee=/0 argument comment matches Dash's BroadcastTransaction declaration in src/node/transaction.h. The previously reported mismatch is fixed at this head.
…ckage` error msg 7554b1f rpc: fix successful broadcast count in `submitpackage` error msg (Sebastian Falbesoner) Pull request description: If a `submitpackage` RPC call errors due to any of the individual tx broadcasts failing, the returned error message is supposed to contain the number of successful broadcasts so far: https://github.com/bitcoin/bitcoin/blob/4395b7f0845d2dca60f3b4e007ef5770ce8e2aa9/src/rpc/mempool.cpp#L848-L849 Right now this is wrongly always shown as zero. Fix this by adding the missing increment of the counter. While touching that area, the variable is also renamed to better reflect its purpose (s/num_submitted/num_broadcast/; the submission has already happened at that point) and named arguments for the `BroadcastTransaction` call are added. (Note that the error should be really rare, as all txs have already been submitted succesfully to the mempool. IIUC this code-path could only hit if somehow a tx is being removed from the mempool between `ProcessNewPackage` and the `BroadcastTransaction` calls, e.g. if a new block is received which confirms any of the package's txs.) ACKs for top commit: glozow: utACK 7554b1f, thanks! Tree-SHA512: e362e93b443109888e28d6facf6f52e67928e8baaa936e355bfdd324074302c4832e2fa0bd8745309a45eb729866d0513b928ac618ccc9432b7befc3aa2aac66 Co-authored-by: fanquake <fanquake@gmail.com>
…th avoidpartialspends 14b4921 wallet: reuse change dest when recreating TX with avoidpartialspends (Matthew Zipkin) Pull request description: Closes bitcoin#27051 When the wallet creates a transaction internally, it will also create an alternative that spends using destination groups and see if the fee difference is negligible. If it costs the user the same to send the grouped version, we send it (even if the user has `avoidpartialspends` set to `false` which is default). This patch ensures that the second transaction creation attempt re-uses the change destination selected by the first attempt. Otherwise, the first change address remains reserved, will not be used in the second attempt, and then will never be used by the wallet, leaving gaps in the BIP44 chain. If the user had `avoidpartialspends` set to true, there is no second version of the created transaction and the change addresses are not affected. I believe this behavior was introduced in bitcoin#14582 ACKs for top commit: achow101: ACK 14b4921 Tree-SHA512: a3d56f251ff4b333fc11325f30d05513e34ab0a2eb703fadd0ad98d167ae074493df1a24068298336c6ed2da6b31aa2befa490bc790bbc260ed357c8f2397659 Co-authored-by: fanquake <fanquake@gmail.com>
5da7c0b build: allow libitcoinkernel dll builds now that exports are fixed (Cory Fields) 130490a build: always build bitcoin-chainstate against static libbitcoinkernel (Cory Fields) 545a74e build: fix bitcoin-chainstate when libbitcoinkernel is static (Cory Fields) 9c253d2 build: don't define DLL_EXPORT for windows (Cory Fields) Pull request description: Fixes bitcoin#25008. Fixes bitcoin#19772. 1. Fixup the build defines so that exports are clean. 2. Work around a libtool issue wrt dependency calculation 3. Simplify everything by only ever building in-tree bitcoin-chainstate against a static libbitcoinkernel 4. Remove Windows-only hack that disabled dll creation ACKs for top commit: TheCharlatan: ACK 5da7c0b Tree-SHA512: 61bab457e13842946387240da703d313509af30d4ca3371a19a26a5ef1716e4d7107b09567323041b549ab1fc97a064aa1d6992406936ab9c491a616bc7f4e7f Co-authored-by: fanquake <fanquake@gmail.com>
962a093 Improve address decoding errors (Aurèle Oulès) Pull request description: Attempt to fix bitcoin#21741. ACKs for top commit: MarcoFalke: lgtm ACK 962a093 davidgumberg: ACK bitcoin@962a093 1440000bytes: utACK bitcoin@962a093 Tree-SHA512: 6f216eeaeccf6bfdf0730d38835fdf26c935a5e1fc35006660393a9ad76bf38c85340f0f20e92f87840463d83d891d9714cfad313aab301a16bb8efa4490df06 Co-authored-by: glozow <gloriajzhao@gmail.com>
…scanning prior birth time 82bb783 wallet: skip block scan if block was created before wallet birthday (furszy) a082434 refactor: single method to append new spkm to the wallet (furszy) Pull request description: During initial block download, the node's wallet(s) scans every arriving block looking for data that it owns. This process can be resource-intensive, as it involves sequentially scanning all transactions within each arriving block. To avoid wasting processing power, we can skip blocks that occurred before the wallet's creation time, since these blocks are guaranteed not to contain any relevant wallet data. This has direct implications (an speed improvement) on the underlying blockchain synchronization process as well. The reason is that the validation interface queue is limited to 10 tasks per time. This means that no more than 10 blocks can be waiting for the wallet(s) to be processed while we are synchronizing the chain (activating the best chain to be more precise). Which can be a bottleneck if blocks arrive and are processed faster from the network than what they are processed by the wallet(s). So, by skipping not relevant blocks in the wallet's IBD scanning process, we will also improve the chain synchronization time. ACKs for top commit: ishaanam: re-ACK 82bb783 achow101: re-ACK 82bb783 pinheadmz: ACK 82bb783 Tree-SHA512: 70158c9657f1fcc396badad2c4410b7b7f439466142640b31a9b1a8cea4555e45ea254e48043c9b27f783d5e4d24d91855f0d79d42f0484b8aa83cdbf3d6c50b Co-authored-by: Andrew Chow <github@achow101.com>
a10f032 fuzz: fix wallet notifications.cpp (furszy) Pull request description: Fixing bitcoin#27469 (comment). As the fuzzing test requires all blocks to be scanned by the wallet (because it is asserting the wallet balance at the end), we need to ensure that no blocks are skipped by the recently added wallet birth time functionality. This just means setting the chain accumulated time to the maximum value, so the wallet birth time is always below it, and the block is always processed by the wallet. ACKs for top commit: MarcoFalke: lgtm ACK a10f032, thanks Tree-SHA512: c9b38c52917cc36674415470752625b8161fc6b878b0b87d6926b462ba9666be3c225d396604c7e944a4c268fc35fc624807777aa0ed94bddbe18d8f8436de3c Co-authored-by: fanquake <fanquake@gmail.com>
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Re-review — Final validation — Phase 1 + Phase 2
Static verification of the complete diff at 6dd4b29 confirms that both prior blockers are fixed, but the new birthday filter breaks three existing wallet benchmarks. The added APS functional-test scenario also loses its intended no-change-to-change coverage because the funding amounts were scaled without scaling the payment. No builds or tests were run; the supplied CI snapshot shows successful lint and nowallet build/tests, a failing Windows job, and several checks still pending.
🔴 1 blocking | 🟡 1 suggestion(s)
Review provenance
Source: reviewer 1: gemini-3.8-flash-high (agent: phase1-reviewer, role: general); reviewer 2: gpt-6.1-sol (agent: phase2-reviewer, role: general); reviewer 3: gpt-6.1-sol (agent: phase2-reviewer, role: backport-reviewer); reviewer 4: gpt-6.1-sol (agent: phase2-reviewer, role: dash-core-commit-history); reviewer 5: gpt-6.1-sol (agent: phase2-reviewer, role: general); reviewer 6: gpt-6.1-sol (agent: phase2-reviewer, role: backport-reviewer); reviewer 7: gpt-6.1-sol (agent: phase2-reviewer, role: dash-core-commit-history); final verifier: gpt-6.1-sol (agent: sol-verifier, role: final-verifier)
- Triage:
normalbygpt-6.1-sol(effort low) — The diff combines ordinary wallet birth-time tracking and block-scan optimization with contained address-error, RPC, build, and test changes, without a large or intricate change to a qualifying critical surface. - Phase 1 reviewers:
gemini-3.8-flash-high— general (completed, effort high); agentphase1-reviewer - Phase 1 model:
gemini-3.8-flash-high— antigravity quota: weekly 94% left, 5h 68% left - Fresh final gate: an independent Phase-2 review ran after iterative findings were reconciled
- Fresh verifier:
gpt-6.1-sol— final-verifier; agentsol-verifier - Phase 2 reviewers:
gpt-6.1-sol— general (completed, effort high); agentphase2-reviewer,gpt-6.1-sol— backport-reviewer (completed, effort high); agentphase2-reviewer,gpt-6.1-sol— dash-core-commit-history (completed, effort high); agentphase2-reviewer,gpt-6.1-sol— general (completed, effort high); agentphase2-reviewer,gpt-6.1-sol— backport-reviewer (completed, effort high); agentphase2-reviewer,gpt-6.1-sol— dash-core-commit-history (completed, effort high); agentphase2-reviewer
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `src/wallet/wallet.cpp`:
- [BLOCKING] src/wallet/wallet.cpp:1560-1562: Adapt the transaction benchmarks to the new birthday filter
This return skips every synthetic block used by the benchmarks in src/bench/wallet_create_tx.cpp. Both WalletCreateTx() and AvailableCoins() create descriptors with the current GetTime(), which now initializes the wallet's birth time through AddScriptPubKeyMan(). However, generateFakeBlock() builds its chain from the regtest genesis timestamp, advancing only one second per block. TestingSetup does not set mocktime, and BasicTestingSetup's destructor resets it between benchmarks, so the wallet records none of these coinbase outputs. WalletCreateTxUseOnlyPresetInputs, WalletCreateTxUsePresetInputsAndCoinSelection, and WalletAvailableCoins consequently reach their existing balance assertions with a zero balance. Set mocktime to the genesis timestamp before descriptor creation in both benchmark setup paths, as this PR already does in wallet_balance.cpp; retain the production filter.
In `test/functional/wallet_change_address.py`:
- [SUGGESTION] test/functional/wallet_change_address.py:81-84: Preserve bitcoin#27053's no-change-to-change regression scenario
Each fresh wallet receives 30 DASH and 1 DASH, while the payment still totals 2.9999 DASH. Every sufficient ungrouped selection therefore includes the 30-DASH output and leaves roughly 27 DASH of change, well above the discard threshold. This contradicts the scenario described below: the first candidate already has change, so the assertion does not exercise preserving the requested change position when a changeless first candidate is followed by an APS candidate with change. Upstream funds the wallets with 3.0 and 0.1 coins for this payment. Funding with 3 DASH and 1 DASH also preserves the intended shape: the ungrouped candidate has a tiny discarded excess, while grouping the same-address inputs creates substantial change.
| // No need to scan block if it was created before the wallet birthday. | ||
| // Uses chain max time and twice the grace period to adjust time for block time variability. | ||
| if (block.chain_time_max < m_birth_time.load() - (TIMESTAMP_WINDOW * 2)) return; |
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🔴 Blocking: Adapt the transaction benchmarks to the new birthday filter
This return skips every synthetic block used by the benchmarks in src/bench/wallet_create_tx.cpp. Both WalletCreateTx() and AvailableCoins() create descriptors with the current GetTime(), which now initializes the wallet's birth time through AddScriptPubKeyMan(). However, generateFakeBlock() builds its chain from the regtest genesis timestamp, advancing only one second per block. TestingSetup does not set mocktime, and BasicTestingSetup's destructor resets it between benchmarks, so the wallet records none of these coinbase outputs. WalletCreateTxUseOnlyPresetInputs, WalletCreateTxUsePresetInputsAndCoinSelection, and WalletAvailableCoins consequently reach their existing balance assertions with a zero balance. Set mocktime to the genesis timestamp before descriptor creation in both benchmark setup paths, as this PR already does in wallet_balance.cpp; retain the production filter.
source: gpt-6.1-sol (phase2-reviewer: general)
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matched with upstream behaviour, see #7855 (comment)
will be fixed later when bitcoin#27907 will be backported.
This bench is LOW priority so it doesn't run by default and doesn't affect CI / tests / etc at the moment. I will backport 27907 pretty soon in the common queue.
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I checked the locally available bitcoin#27907 backport (deacf04e0e), and its mocktime changes in both benchmark setup paths resolve this concern. You're right that make check explicitly runs only high-priority benchmarks, but the standalone runner defaults to DEFAULT_PRIORITY{"all"} in src/bench/bench_bitcoin.cpp, so LOW does not exclude these from a default benchmark run. I'd include bitcoin#27907 with this backport rather than leave the newly introduced failure for a later PR.
The finding stands on this commit until that change is pushed; the push gets a full review.
| self.nodes[0].sendtoaddress(addr1, 30) | ||
| self.nodes[0].sendtoaddress(addr1, 1) | ||
| self.nodes[0].sendtoaddress(addr2, 30) | ||
| self.nodes[0].sendtoaddress(addr2, 1) |
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🟡 Suggestion: Preserve bitcoin#27053's no-change-to-change regression scenario
Each fresh wallet receives 30 DASH and 1 DASH, while the payment still totals 2.9999 DASH. Every sufficient ungrouped selection therefore includes the 30-DASH output and leaves roughly 27 DASH of change, well above the discard threshold. This contradicts the scenario described below: the first candidate already has change, so the assertion does not exercise preserving the requested change position when a changeless first candidate is followed by an APS candidate with change. Upstream funds the wallets with 3.0 and 0.1 coins for this payment. Funding with 3 DASH and 1 DASH also preserves the intended shape: the ungrouped candidate has a tiny discarded excess, while grouping the same-address inputs creates substantial change.
| self.nodes[0].sendtoaddress(addr1, 30) | |
| self.nodes[0].sendtoaddress(addr1, 1) | |
| self.nodes[0].sendtoaddress(addr2, 30) | |
| self.nodes[0].sendtoaddress(addr2, 1) | |
| self.nodes[0].sendtoaddress(addr1, 3) | |
| self.nodes[0].sendtoaddress(addr1, 1) | |
| self.nodes[0].sendtoaddress(addr2, 3) | |
| self.nodes[0].sendtoaddress(addr2, 1) |
source: gpt-6.1-sol (phase2-reviewer: general, backport-reviewer, dash-core-commit-history)
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intentionally increased
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I understand the increase was deliberate; I’m not asking to preserve Bitcoin’s denominations. The concrete coverage gap is that txr_ungrouped.change_pos is already 0 here, so passing that result instead of the original change_pos into the second CreateTransactionInternal call would be indistinguishable to this assertion. You can keep the 30-DASH and 1-DASH funding: changing the recipients to 10, 10, and 9.9999 would restore the intended changeless-first-candidate scenario while retaining the increased amounts.
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intentionally increased due to failures with bitcoin's values.
Checked this empirically on Dash. The exact upstream amounts (3.0 + 0.1) do not work here: the avoidpartialspends wallet's send fails with "Fee exceeds maximum configured by user", which is why the amounts in this file were scaled when the first half of this test was backported. You're right that 30 + 1 loses the point of the scenario though: the non-grouped candidate is cheaper (293 vs 440 duffs) and with the default max APS fee of 0 the grouped candidate is never used, so the assertion only ever sees the first attempt. With 3 + 1 both candidates cost the same, the grouped one is chosen, and the change position check runs against the second attempt as intended. Note the first candidate is not changeless on Dash either way (coin selection takes both inputs), but that doesn't matter for what the test needs to cover. Taking your suggestion.
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Thanks for checking this empirically; I was wrong that 3 + 1 alone would make the first candidate changeless on Dash. Selecting the grouped candidate improves coverage, but it doesn't restore the no-change-to-change scenario this section describes. The missing piece is Dash's knapsack change target: GenerateChangeTarget can request up to roughly 0.01 DASH, so the 0.0001 excess causes selection of both inputs. With 3 + 1 funding, keeping the first two recipients at 1.0 and changing the third to 0.9899 should instead leave enough excess to select the 3-DASH input alone, yet still discard that excess under -discardfee=1; grouping then produces substantial change. That's a static proposal, not a locally tested result.
3 participants
What was done?
Regular backports from Bitcoin Core v25
How Has This Been Tested?
Run unit & functional tests
Breaking Changes
N/A
Checklist: