f20fe33e94 test: Add basic balance coverage to wallet_assumeutxo.py (Fabian Jahr)
037b101e80 test: Add coverage for best block locator write in wallet_backup (Fabian Jahr)
31c0df0389 wallet: migration, write best locator before unloading wallet (furszy)
7e3dbe4180 wallet: Write best block to disk before backup (Fabian Jahr)
Pull request description:
I discovered that we don't write the best block to disk when trying to explain the behavior described here: https://github.com/bitcoin/bitcoin/pull/30455#discussion_r1719951882
In the context of that test, the behavior is confusing and I think it also shows that one of the already existing tests in `wallet_assumeutxo.py` doesn't actually test what it says. It only fails because the best block isn't written and actually, the height of the backup that is loaded is at the snapshot height during backup. So it really shouldn't fail since it's past the background sync blocks already.
I'm not sure if this is super relevant in practice though so I am first looking for concept ACKs on the `BackupWallet` code change. Either way, I think this behavior should be documented better if it is left as is and the test should be changed.
ACKs for top commit:
achow101:
ACK f20fe33e94
furszy:
ACK f20fe33
Tree-SHA512: bb384a940df5c942fffe2eb06314ade4fc5d9b924012bfef3b1c456c4182a30825d1e137d8ae561d93d3a8a2f4d1c1ffe568132d20fa7d04844f1e289ab4a28b
7942951e3f Remove unused g_best_block (Ryan Ofsky)
e3a560ca68 rpc: use waitTipChanged for longpoll (Ryan Ofsky)
460687a09c Remove unused CRPCSignals (Sjors Provoost)
dca923150e Replace RPCNotifyBlockChange with waitTipChanged() (Sjors Provoost)
2a40ee1121 rpc: check for negative timeout arg in waitfor* (Sjors Provoost)
de7c855b3a rpc: recommend -rpcclienttimeout=0 for waitfor* (Sjors Provoost)
77ec072925 rpc: fix waitfornewblock description (Sjors Provoost)
285fe9fb51 rpc: add test for waitforblock and waitfornewblock (Sjors Provoost)
b94b27cf05 Add waitTipChanged to Mining interface (Sjors Provoost)
7eccdaf160 node: Track last block that received a blockTip notification (Sjors Provoost)
ebb8215f23 Rename getTipHash() to getTip() and return BlockRef (Sjors Provoost)
89a8f74bbb refactor: rename BlockKey to BlockRef (Sjors Provoost)
Pull request description:
This continues the work in #30200 so that a future Stratum v2 Template Provider (see #29432) can avoid accessing node internals. It needs to know when a new block arrives in order to push new templates to connected clients.
`waitTipChanged()` uses a new kernel notification `notifications().m_tip_block_mutex`, which this PR also introduces (a previous version used `g_best_block`).
In order to ensure the new method works as intended, the `waitfornewblock`, `waitforblock` and `waitforblockheight` RPC methods are refactored to use it. This allows removing `RPCNotifyBlockChange`.
There's a commit to add (direct) tests for the methods that are about to be refactored:
- `waitfornewblock` was already implicitly tested by `feature_shutdown.py`.
- `waitforblockheight` by `feature_coinstatsindex.py` and `example_test.py`
This PR renames `getTipHash()` to `getTip()` and returns a `BlockRef` (renamed from `BlockKey`) so that callers can use either the height or hash.
The later commits make trivial improvements to the `waitfor*` RPC calls (not needed for this PR).
The `waitTipChanged()` method could probably also be used for the longpoll functionality in `getblocktemplate`, but I'm a bit reluctant to touch that.
`RPCServer::OnStarted` no longer does anything and `RPCServer::OnStopped` merely prints a log statement. They were added in #5711 as a refactor. This PR drops them entirely.
Finally `g_best_block` is also dropped.
ACKs for top commit:
achow101:
ACK 7942951e3f
ryanofsky:
Code review ACK 7942951e3f. Just rebased since last review
TheCharlatan:
Re-ACK 7942951e3f
Tree-SHA512: a5559446b4000c95e07aad33284b7ee2e57aafd87e1ae778b3825d59689566d047a8047e47a10f76e6e341e7dc72fd265a65afbc0a9c011d17c4cafd55031837
5e190cd11f Replace CScript _hex_v_u8 appends with _hex (Lőrinc)
cac846c2fb Allow CScript's operator<< to accept spans, not just vectors (Lőrinc)
c78d8ff4cb prevector: avoid GCC bogus warnings in insert method (Lőrinc)
Pull request description:
Split out of https://github.com/bitcoin/bitcoin/pull/30377#discussion_r1722326803.
Replace `_hex_v_u8` for `CScript` appends to `_hex`, to skip vector conversion before serializing to the `prevector` in `CScript`.
To enable both `unsigned char` and `std::byte` values, I've extracted the existing serialization to append the size & data in separate private methods to clarify that it does more than just a simple data insertion.
There were also discussion on eliminating the operators here completely to obviate when we're serializing fixed-size collections as raw bytes, and when we're prefixing them with their size - should also be done in a separate PR.
ACKs for top commit:
achow101:
ACK 5e190cd11f
ryanofsky:
Code review ACK 5e190cd11f. Looks good!
hodlinator:
re-ACK 5e190cd11f
Tree-SHA512: 27a646629e017b2a05416d5eb964dda8b25b900d466221eff7bfa1339ded443e1c5c4cf8ff20cb3bba915a2603787a9fa6f6ec12bc0b9415d9eb07b57289192b
f482d0e366 fuzz: reduce number of iterations in `crypto_aeadchacha20poly1305` target (brunoerg)
Pull request description:
By reducing the number of iterations we improve the performance of this target and may increase coverage.
Running with `-runs=100000` from qa-assets I noticed a significant performance improvement and an increase on cov:
master:
```
#100000 DONE cov: 567 ft: 4078 corp: 124/33Kb lim: 4096 exec/s: 793 rss: 499Mb
```
PR:
```
#100000 DONE cov: 568 ft: 3833 corp: 113/15188b lim: 1746 exec/s: 1250 rss: 544Mb
```
ACKs for top commit:
achow101:
ACK f482d0e366
marcofleon:
Tested ACK f482d0e366. Saw the same slight increase in coverage. Executed 100,000 runs several times and total time went from 30-35 sec to 20-25 sec.
stratospher:
ACK f482d0e. saw similar coverage stats
Tree-SHA512: 1a96dbc22a0aed396b7f8cc9b13534b7f20a461f64f167c69c650529d535e360499f1a501abc1f957f7541ee1860b36a5580aa488a1edbfa0270c9ed83ef741d
bc52cda1f3 fix use int32_t instead of int type for risczero compile with (-march=rv32i, -mabi=ilp32) (Simon)
Pull request description:
When compile bitcoin by the toolchain(`riscv32-unknown-elf-g++`) from risc0 , the compiler argument is `-march=rv32i, -mabi=ilp32`, which will get the error which due to not serialize the value of type int .
```
blockbody-guest: cargo:warning=In file included from depend/bitcoin/src/hash.h:14,
blockbody-guest: cargo:warning= from depend/bitcoin/src/script/interpreter.h:9,
blockbody-guest: cargo:warning= from depend/bitcoin/src/script/interpreter.cpp:6:
blockbody-guest: cargo:warning=depend/bitcoin/src/serialize.h: In instantiation of 'void Serialize(Stream&, const T&) [with Stream = HashWriter; T = int]':
blockbody-guest: cargo:warning=depend/bitcoin/src/hash.h:144:20: required from 'HashWriter& HashWriter::operator<<(const T&) [with T = int]'
blockbody-guest: cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1613:12: required from 'uint256 SignatureHash(const CScript&, const T&, unsigned int, int, const CAmount&, SigVersion, const PrecomputedTransactionData*) [with T = CTransaction; CAmount = long long int]'
blockbody-guest: cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1664:36: required from 'bool GenericTransactionSignatureChecker<T>::CheckECDSASignature(const std::vector<unsigned char>&, const std::vector<unsigned char>&, const CScript&, SigVersion) const [with T = CTransaction]'
blockbody-guest: cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1785:16: required from here
blockbody-guest: cargo:warning=depend/bitcoin/src/serialize.h:776:7: error: request for member 'Serialize' in 'a', which is of non-class type 'const int'
blockbody-guest: cargo:warning= 776 | a.Serialize(os);
```
--------------
### Reason
"The toolchain from RISC Zero defines int and int32_t as different types, although they have the same width. This means that `src/compat/assumptions.h` compiles fine; however, the templated serialization code cannot accept values of type int. Fix the compilation on RISC Zero by serializing int32_t instead of int values.
This patch will explicitly use the `int32_t` type instead of `int` to avoid errors when compiling with the risc0 toolchain. Additionally, this patch will not change any behavior on platforms where compilation was previously successful.
Fixes #30747
ACKs for top commit:
maflcko:
review-only ACK bc52cda1f3
achow101:
ACK bc52cda1f3
TheCharlatan:
ACK bc52cda1f3
Tree-SHA512: ef880e7dfa1335bf2704ab17c0f506f17390b8259755674dfcd57131736492b2f4cfc36babda6902202b7c55a7513991e21f6634b0cd9b2b03baf4f1c0f8d78b
e6994efe08 fix: increase rpcbind check robustness (tdb3)
d38e3aed89 fix: handle invalid rpcbind port earlier (tdb3)
83b67f2e6d refactor: move host/port checking (tdb3)
73c243965a test: add tests for invalid rpcbind ports (tdb3)
Pull request description:
Previously, when an invalid port was specified in `-rpcbind`, the `SplitHostPort()` return value in `HTTPBindAddresses()` was ignored and attempt would be made to bind to the default rpcbind port (with the host/port treated as a host).
This rearranges port checking code in `AppInitMain()` to handle the invalid port before reaching `HTTPBindAddresses()`. Also adds a check in `HTTPBindAddresses()` as a defensive measure for future changes.
Adds then updates associated functional tests as well.
ACKs for top commit:
achow101:
ACK e6994efe08
ryanofsky:
Code review ACK e6994efe08
zaidmstrr:
Code review ACK [e6994ef](e6994efe08)
Tree-SHA512: bcc3e5ceef21963821cd16ce6ecb83d5c5657755882c05872a7cfe661a1492b1d631f54de22f41fdd173512d62dd15dc37e394fe1a7abe4de484b82cd2438b92
8466329127 chain: simplify `deleteRwSettings` code and improve it's doc (ismaelsadeeq)
f8d91f49c7 chain: dont check for null settings value in `overwriteRwSetting` (ismaelsadeeq)
df601993f2 chain: ensure `updateRwSetting` doesn't update to a null settings (ismaelsadeeq)
c8e2eeeffb chain: uniformly use `SettingsAction` enum in settings methods (ismaelsadeeq)
1e9e735670 chain: move new settings safely in `overwriteRwSetting` (ismaelsadeeq)
1c409004c8 test: remove wallet context from `write_wallet_settings_concurrently` (ismaelsadeeq)
Pull request description:
This PR addresses the remaining review comments from #30697
1. Disallowed overwriting settings values with a `null` value.
2. Uniformly used the `SettingsAction` enum in all settings methods instead of a boolean parameter.
3. Updated `overwriteRwSetting` to receive the `common::SettingsValue` parameter by value, enabling it to be moved safely.
4. Removed wallet context from the `write_wallet_settings_concurrently` unit test, as it is not needed.
ACKs for top commit:
achow101:
ACK 8466329127
ryanofsky:
Code review ACK 8466329127. Looks good, thanks for taking suggestions and applying them to the right commits. Only changes since last review were documentation improvements and simplifying delete method.
furszy:
Code review ACK 8466329127
Tree-SHA512: baf2f59ed5aac4a4bda0c84fb6554a466a40d1f7b52b61dc2ff293d83ae60e82b925b7003237b633fecb65eba3a4c108e69166046895d1295809fbe0de67b052
51f7668d31 addrman: change nid_type from int to int64_t (Martin Zumsande)
051ba3290e addrman, refactor: introduce user-defined type for internal nId (Martin Zumsande)
Pull request description:
With `nIdCount` being incremented for each addr received, an attacker could cause an overflow in the past, see https://bitcoincore.org/en/2024/07/31/disclose-addrman-int-overflow/
Even though that attack was made infeasible indirectly by addr rate-limiting (PR #22387), to be on the safe side and prevent any regressions change the `nId`s used internally to `int64_t`.
This is being done by first introducing a user-defined type for `nId`s in the first commit, and then updating it to `int64_t` (thanks sipa for help with this!).
Note that `nId` is only used internally, it is not part of the serialization, so `peers.dat` should not be affected by this.
I assume that the only reason this was not done in the past is to not draw attention to this previously undisclosed issue.
ACKs for top commit:
naumenkogs:
ACK 51f7668d31
stratospher:
ACK 51f7668d31. I think it's a good change to make the nId space large(64 bits) so that the nId values are distinct.
achow101:
ACK 51f7668d31
Tree-SHA512: 68d4b8b0269a01a9544bedfa7c1348ffde00a288537e4c8bf2b88372ac7d96c4566a44dd6b06285f2fcf31b4f9336761e3bca7253fbc20db5e0d04e887156224
54227e681a rpc, cli: improve error message on multiwallet mode (pablomartin4btc)
Pull request description:
Running a CLI command when multiple wallets are loaded and `-rpcwallet` is not specified, should return a clearer error.
Currently in `master`:
```
$ bitcoin-cli -regtest -generate 1
error code: -19
error message:
Wallet file not specified (must request wallet RPC through /wallet/<filename> uri-path).
Try adding "-rpcwallet=<filename>" option to bitcoin-cli command line.
```
With this change:
```
$ bitcoin-cli -regtest -generate 1
error code: -19
error message:
Multiple wallets are loaded. Please select which wallet to use by requesting the RPC through the /wallet/<walletname> URI path. Or for the CLI, specify the "-rpcwallet=<walletname>" option before the command (run "bitcoin-cli -h" for help or "bitcoin-cli listwallets" to see which wallets are currently loaded).
```
ACKs for top commit:
maflcko:
review ACK 54227e681a
achow101:
ACK 54227e681a
furszy:
utACK 54227e681a
mzumsande:
Code Review ACK 54227e681a
jonatack:
ACK 54227e681a
Tree-SHA512: 51ff24f64858aa6be6adf6f20105c9f076ebea743780bf2a4399f7fe8b5239cbb1ea06d32b2ef5e850da2369abb0ef7a52c50c2b8f31f4ca90d3a486abc9b77e
58499b00d0 refactor: move `SignSignature` helpers to test utils (Sebastian Falbesoner)
Pull request description:
These helpers haven't been used in production code since segwit was merged more than eight years ago (see commit 605e8473, PR #8149), so it seems appropriate to move them to the test utils module. As suggested by instagibbs, see https://github.com/bitcoin/bitcoin/pull/30352#discussion_r1697515508.
ACKs for top commit:
instagibbs:
ACK 58499b00d0
pablomartin4btc:
ACK 58499b00d0
Tree-SHA512: a52d3b92b477246f2ceb57c3690d0229a492b65a15dae331faeae9d96e5907f7fe1176edc1530243e0f088586984fd7ba435a0a2d2f2531c04d076fdf3f4095f
7025942687 build: drop superfluous `HAVE_BUILD_INFO` define (Sebastian Falbesoner)
0dd662510c build: drop obj/ subdir for generated build.h, rename to bitcoin-build-info.h (Sebastian Falbesoner)
Pull request description:
As indicated by the TODO, the obj subdirectory is not needed anymore now for the generated build.h header, since autotools are gone and we don't have in-source builds anymore (see #30454, #30664). In the second commit the superflous `HAVE_BUILD_INFO` macro is dropped, as suggested in https://github.com/bitcoin/bitcoin/pull/30856#pullrequestreview-2292424496.
ACKs for top commit:
theuni:
utACK 7025942687
Tree-SHA512: 0a3b2cbbcf638344ceb74e5ba5a0fe2b1718427b23a18c8890258db36ce7177006a146178ed88d9c5ae956a5426f3844e86c1f4cca7c40946359742bffda983b
bitcoin-build-info.h should always be generated before clientversion.cpp
is compiled due to the following explicit dependency in src/CMakeLists.txt:
add_dependencies(bitcoin_clientversion generate_build_info)
Hence there is no need to gate the inclusion of that header with an
extra define.
Now that this file is not in a subfolder anymore, prefix it with
"bitcoin-" to avoid potential collisions. Also add "info" for a more
descriptive name.
facbcd4cef log: Use ConstevalFormatString (MarcoFalke)
fae9b60c4f test: Use LogPrintStr to test m_log_sourcelocations (MarcoFalke)
fa39b1ca63 doc: move-only logging warning (MarcoFalke)
Pull request description:
This changes all logging (including the wallet logging) to produce a
`ConstevalFormatString` at compile time, so that the format string can be
validated at compile-time.
I tested with `clang` and found that the compiler will use less than 1% more of time and memory.
When an error is found, the compile-time error depends on the compiler, but it may look similar to:
```
src/util/string.h: In function ‘int main(int, char**)’:
src/bitcoind.cpp:265:5: in ‘constexpr’ expansion of ‘util::ConstevalFormatString<1>(((const char*)"Hi %s %s"))’
src/util/string.h:38:98: in ‘constexpr’ expansion of ‘util::ConstevalFormatString<1>::Detail_CheckNumFormatSpecifiers(std::basic_string_view<char>(((const char*)((util::ConstevalFormatString<1>*)this)->util::ConstevalFormatString<1>::fmt)))’
src/util/string.h:78:34: error: expression ‘<throw-expression>’ is not a constant expression
78 | if (num_params != count) throw "Format specifier count must match the argument count!";
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
This refactor does not change behavior of the compiled executables.
ACKs for top commit:
hodlinator:
re-ACK facbcd4cef
l0rinc:
ACK facbcd4cef
ryanofsky:
Code review ACK facbcd4cef
pablomartin4btc:
re-ACK facbcd4cef
stickies-v:
Approach ACK and code LGTM facbcd4cef modulo a `tinyformat::format_error` concern.
Tree-SHA512: 852f74d360897020f0d0f6e5064edc5e7f7dacc2bec1d5feff22c634a2fcd2eb535aa75be0b7191d9053728be6108484c737154b02d68ad3186a2e5544ba0db8
a9964c0444 doc: Updating docs from autotools to cmake (kevkevinpal)
Pull request description:
A bit of a followup from https://github.com/bitcoin/bitcoin/pull/30840
- In this change the documentation where we refer to the `./configure` script which is now gone and have converted the configure params to use the `cmake` equivalent.
ACKs for top commit:
maflcko:
ACK a9964c0444
jonatack:
utACK a9964c0444
jarolrod:
ACK a9964c0444
tdb3:
ACK a9964c0444
pablomartin4btc:
re-ACK a9964c0444
Tree-SHA512: f7ed20b8ad61f028c0d242b9cc70650d8da63057d4a8f7da88f0117a8d3241c5fe8fcf19d56ec82088160b9fee9b175fe9f64e5a845260d3696dc7e94bfdd0bd
replaced --enable-debug with -DCMAKE_BUILD_TYPE=Debug in developer-notes
replaced --enable-multiprocess with -DWITH_MULTIPROCESS=ON
replaced --disable-zmq with -DWITH_ZMQ=OFF
Adds invalid rpcbind port checking to
`HTTPBindAddresses()`. While movement of
`CheckHostPortOptions()` in the previous
commit handles rcpbind port errors, updating
`HTTPBindAddresses()` port checking adds
a defensive measure for potential future
changes.
Previously, when an invalid port was specified
in `-rpcbind`, the `SplitHostPort()` return value
in `HTTPBindAddresses()` was ignored and attempt
would be made to bind to the default rpcbind port
(with the host/port treated as a host).
This rearranges port checking code in
`AppInitMain()` to handle the invalid
port before reaching `HTTPBindAddresses()`.
Also adjusts associated functional tests.
The primary objective is to provide users with clearer
and more informative error messages when encountering
the RPC_WALLET_NOT_SPECIFIED error, which occurs when
multiple wallets are loadad.
This commit also rectifies the error message consistency
by bringing the error message in line with the definition
established in protocol.h ("error when there are multiple
wallets loaded").
This changes all logging (including the wallet logging) to produce a
ConstevalFormatString at compile time, so that the format string can be
validated at compile-time.
Also, while touching the wallet logging, avoid a copy of the template
Params by using const Params&.
The waitforblock RPC method takes a hash argument and waits for that specific block. The waitfornewblock waits for any new block. This commit fixes the documentation.
Also signal m_tip_block_cv when StopRPC is called, for
consistency with g_best_block_cv. This is handled in
StopRPC instead of OnRPCStopped() because the latter
is deleted in a later commit.
Co-authored-by: TheCharlatan <seb.kung@gmail.com>
Co-authored-by: Ryan Ofsky <ryan@ofsky.org>
a240e150e8 streams: remove AutoFile::Get() entirely (Pieter Wuille)
e624a9bef1 streams: cache file position within AutoFile (Pieter Wuille)
Pull request description:
Fixes #30833.
Instead of relying on frequent `ftell` calls (which appear to cause a significant slowdown on some systems) in XOR-enabled `AutoFile`s, cache the file position within `AutoFile` itself.
ACKs for top commit:
achow101:
ACK a240e150e8
davidgumberg:
untested reACK a240e150e8
theStack:
Code-review ACK a240e150e8
Tree-SHA512: fd3681edc018afaf955dc7a41a0c953ca80d46c1129e3c5b306c87c95aae93b2fe7b900794eb8b6f10491f9211645e7939918a28838295e6873eb226fca7006f
e4e3b44e9c net: call `Select` with reachable networks in `ThreadOpenConnections` (brunoerg)
829becd990 addrman: change `Select` to support multiple networks (brunoerg)
f698636ec8 net: add `All()` in `ReachableNets` (brunoerg)
Pull request description:
This PR changes addrman's `Select` to support multiple networks and change `ThreadOpenConnections` to call it with reachable networks. It can avoid unnecessary `Select` calls and avoid exceeding the max number of tries (100), especially when turning a clearnet + Tor/I2P/CJDNS node to Tor/I2P/CJDNS. Compared to #29330, this approach is "less aggresive". It does not add a new init flag and does not impact address relay.
I did an experiment of calling `Select` without passing a network until it finds an address from a network that compose 20% ~ 25% of the addrman (limited to 100 tries).
ACKs for top commit:
achow101:
ACK e4e3b44e9c
vasild:
ACK e4e3b44e9c
naumenkogs:
ACK e4e3b44e9c
Tree-SHA512: e8466b72b85bbc2ad8bfb14471eb27d2c50d4e84218f5ede2c15a6fa3653af61b488cde492dbd398f7502bd847e95bfee1abb7e01092daba2236d3ce3d6d2268
6a1aa510e3 rpc: check block index before reading block / undo data (Martin Zumsande)
6cbf2e5f81 rpc: Improve gettxoutproof error when only header is available. (Martin Zumsande)
69fc867ea1 test: add coverage to getblock and getblockstats (Martin Zumsande)
5290cbd585 rpc: Improve getblock / getblockstats error when only header is available. (Martin Zumsande)
e5b537bbdf rest: improve error when only header of a block is available. (Martin Zumsande)
Pull request description:
Fixes #20978
If a block was pruned, `getblock` already returns a specific error: "Block not available (pruned data)".
But if we haven't received the full block yet (e.g. in a race with block downloading after a new block was received headers-first, or during IBD) we just return an unspecific "Block not found on disk" error and log
`ERROR: ReadBlockFromDisk: OpenBlockFile failed for FlatFilePos(nFile=-1, nPos=0) `
which suggest something went wrong even though this is a completely normal and expected situation.
This PR improves the error message and stops calling `ReadRawBlockFromDisk()`, when we already know from the header that the block is not available on disk.
Similarly, it prevents all other rpcs from calling blockstorage read functions unless we expect the data to be there, so that `LogError()` will only be thrown when there is an actual file system problem.
I'm not completely sure if the cause is important enough to change the wording of the rpc error, that some scripts may rely on.
If reviewers prefer it, an alternative solution would be to keep returning the current "Block not found on disk" error, but return it immediately instead of calling `ReadRawBlockFromDisk`, which would at least prevent the log error and also be an improvement in my opinion.
ACKs for top commit:
fjahr:
re-ACK 6a1aa510e3
achow101:
ACK 6a1aa510e3
andrewtoth:
re-ACK 6a1aa510e3
Tree-SHA512: 491aef880e8298a05841c4bf8eb913ef84820d1ad5415fd17d9b441bff181959ebfdd432b5eb8347dc9c568433f9a2384ca9d84cd72c79d8a58323ca117538fe
bb3b980dfd validation: drop maximum -dbcache (Sjors Provoost)
Pull request description:
Due to recent UTXO set growth, the current maximum value for `-dbcache` of 16GB is ~just months away from being~ insufficient (for those who wish to complete IBD with the UTXO set held in RAM).
This drops the limit. It also adds a warning that it's up to users to check that they have enough RAM.
Fixes #28249.
---
A previous version of this PR increased the maximum to 64GB. It also made startup abort if the value provided is too high, rather than quietly round it down. But this didn't get much support.
ACKs for top commit:
achow101:
ACK bb3b980dfd
tdb3:
ACK bb3b980dfd
BenWestgate:
crACK bb3b980dfd.
Tree-SHA512: 8515fff468c2387a0b04bd9523ab1df46d6325738588b7550fabddbb8624817a583d95b95ea246407f9f0ff3e43e760cf7334621bec6af79710176328528a3ef
fc7b507e9a tidy: add clang-tidy `modernize-use-starts-ends-with` check (Roman Zeyde)
Pull request description:
ACKs for top commit:
jonatack:
re-ACK fc7b507e9a only change since my previous ACK is the commit message
achow101:
ACK fc7b507e9a
stickies-v:
ACK fc7b507e9a
hebasto:
ACK fc7b507e9a, I have reviewed the code and it looks OK.
Tree-SHA512: 334e0ff91b9b108a57cdfc12ee53685b792d377e11124c7c394b8f681a8168a8d65a56c7f884555238e65e97e9ad62ede52b79219ce258979e54abdd76721df1
a93c171faa Drop unneeded nullptr check from CreateNewBlock() (Sjors Provoost)
dd87b6dff3 Have createNewBlock return BlockTemplate interface (Sjors Provoost)
Pull request description:
Suggested in https://github.com/bitcoin/bitcoin/pull/29432#issuecomment-2225337100
An external program that uses the Mining interface may need quick access to some information in the block template, while it can wait a bit longer for the full raw transaction data.
This would be the case for a Stratum v2 Template Provider which needs to send a [NewTemplate](https://github.com/stratum-mining/sv2-spec/blob/main/07-Template-Distribution-Protocol.md#72-newtemplate-server---client) message message (which doesn't include transactions) as quickly as possible. It does not include the serialized block transactions.
ACKs for top commit:
achow101:
ACK a93c171faa
ryanofsky:
Code review ACK a93c171faa. Since last review, just rebased with no changes or conflicts
itornaza:
Code review ACK a93c171faa
TheCharlatan:
Re-ACK a93c171faa
Tree-SHA512: 17cb61eb5548e9d4a69e34dd732f68a06cde2ad3d82c8339efee704c7860d5de144d93b23d6ecd6ee4ec205844e5560ad0f6d3917822fa75bb8e640c5f51af9a
a97f43d63a fuzz: Add harness for p2p headers sync (marcofleon)
a0eaa4749f Add FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION in PoW check (marcofleon)
a3f6f5acd8 build: Automatically define FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION for fuzz builds (marcofleon)
0c02d4b2bd net_processing: Make MAX_HEADERS_RESULTS a PeerManager option (marcofleon)
Pull request description:
This PR reopens https://github.com/bitcoin/bitcoin/pull/28043. It's a regression fuzz test for https://github.com/bitcoin/bitcoin/pull/26355 and [a couple bugs](ed6cddd98e) that were addressed in https://github.com/bitcoin/bitcoin/pull/25717. This should help us move forward with the [removal of mainnet checkpoints](https://github.com/bitcoin/bitcoin/pull/25725).
It seems like the main concern in https://github.com/bitcoin/bitcoin/pull/28043 was the global mock function for proof of work. This PR aims to be an improvement by replacing the previous approach with a fuzz build configured using `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`. This ensures that the simplified test code will never be in a release binary. If we agree this is the way to go, there are some other places (for future targets) where this method could be used.
In this target, PoW isn't being tested, so the goal is to bypass the check and let the fuzzer do its thing. In the other harnesses where PoW is actually being fuzzed, `CheckProofOfWork` is now `CheckProofOfWorkImpl`. So, the only change to that function is in the name.
More about `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` can be found at https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode and https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#d-modifying-the-target.
ACKs for top commit:
naumenkogs:
ACK a97f43d63a
dergoegge:
reACK a97f43d63a
instagibbs:
tested ACK a97f43d63a
brunoerg:
ACK a97f43d63a
Tree-SHA512: 60b0bc6aadd8ca4c39db9cbba2da2debaaf68afcb6a8dd75c1ce48ca9e3996948fda8020930b6771a424e0f7c41b0b1068db4aa7dbe517f8fc152f1f712058ad
9ad2fe7e69 clusterlin: only start/use search when enough iterations left (Pieter Wuille)
bd044356ed clusterlin: improve heuristic to decide split transaction (optimization) (Pieter Wuille)
71f2629398 clusterlin: include topological pot subsets automatically (optimization) (Pieter Wuille)
e20fda77a2 clusterlin: reduce computation of unnecessary pot sets (optimization) (Pieter Wuille)
6060a948ca clusterlin bench: add example hard cluster benchmarks (Pieter Wuille)
2965fbf203 clusterlin: track upper bound potential set for work items (optimization) (Pieter Wuille)
9e43e4ce10 clusterlin: use feerate-sorted depgraph in SearchCandidateFinder (Pieter Wuille)
b80e6dfe78 clusterlin: add reordering support for DepGraph (Pieter Wuille)
85a285a306 clusterlin: separate initial search entries per component (optimization) (Pieter Wuille)
e4faea9ca7 clusterlin bench: have low/high iter benchmarks instead of per-iter (Pieter Wuille)
Pull request description:
Part of cluster mempool: #30289
Depends on #30126, and was split off from it.
This improves the candidate search algorithm introduced in the previous PR with a variety of optimizations.
The resulting search algorithm largely follows Section 2 of [How to linearize your cluster](https://delvingbitcoin.org/t/how-to-linearize-your-cluster/303#h-2-finding-high-feerate-subsets-5), though with a few changes:
* Connected component analysis is performed inside the search algorithm (creating initial work items per component for each candidate), rather than once at a higher level. This duplicates some work but is significantly simpler in implementation.
* No ancestor-set based presplitting inside the search is performed; instead, the `best` value is initialized with the best topologically valid set known to the LIMO algorithm before search starts: the better one out of the highest-feerate remaining ancestor set, and the highest-feerate prefix of remaining transactions in `old_linearization`.
* Work items are represented using an included set *inc* and an undefined set *und*, rather than included and excluded.
* Potential sets *pot* are not computed for work items with empty *inc*.
At a high level, the only missing optimization from that post is bottleneck analysis; my thinking is that it only really helps with clusters that are already relatively cheap to linearize (doing so would need to be done at a higher level, not inside the search algorithm).
---
Overview of the impact of each commit here on linearize performance:
* **[clusterlin bench: have low/high iter benchmarks instead of per-iter](21a184db63)**: no impact
* **[separate initial search entries per component (optimization)](c84c5c86ba)**: reduce iterations, increase start-up cost
* **[add reordering support for DepGraph](019ff29609)**: no impact
* **[use feerate-sorted depgraph in SearchCandidateFinder](8e27dd5a22)**: typically reduce iterations, increase start-up cost
* **[track upper bound potential set for work items](781e0fb3aa)**: reduce iterations, increase cost per iteration
* **[reduce computation of unnecessary pot sets](9fe834fa97)**: reduce cost per iteration
* **[include topological pot subsets automatically](30612710a4)**: reduce iterations, increase cost per iteration
* **[improve heuristic to decide split transaction](1880c00ab1)**: typically reduce iterations, increase cost per iteration
* **[only start/use search when enough iterations left](12760a57b3)**: just account for start-up cost as equivalent iterations
ACKs for top commit:
sdaftuar:
ACK 9ad2fe7e69
instagibbs:
reACK 9ad2fe7e69
glozow:
reACK 9ad2fe7e69, just have a question about the docs
Tree-SHA512: 108bcbb0676f36071eb83954059b5f3d6646c745015b644a2a5d7f5a8ac9424c2d01d339fa6318a3aff4cf313308e85bb80b0090899720a3fcba027b8025590a
