Without this change, logging (even if unused) may account for a
substantial portion of bitcoin-node's and/or client's runtime cpu usage, due
to libmultiprocess's expensive message serialization.
This (along with some recent upstream changes) avoids the overhead by opting
out of log handling for messages that we're not interested in.
Info, Warning, and Error are logged unconditionally to match our behavior
elsewhere. See BCLog::Logger::GetCategoryLogLevel .
Github-Pull: #33517
Rebased-From: 0626b90f50
When using `docker buildx build` in conjunction with the `gha` backend
cache type, it's important to specify the URL and TOKEN needed to
authenticate.
On Cirrus runners this is working with only `ACTIONS_CACHE_URL` and
`ACTIONS_RUNTIME_TOKEN`, but this is not enough for the GitHub backend.
Fix this by exporting all `ACTIONS_*` variables.
This fixes cache restore/save on forks or where GH-hosted runners are
being used.
Github-Pull: #33508
Rebased-From: bc706955d7
$FILE_ENV has a full relative path already, prepending with ci/test/
results in a non-existent path which means that DEPENDS_HASH was not
actually committing to the test's environment file.
Github-Pull: #33581
Rebased-From: ceeb53adcd
a4f929696490 Merge bitcoin-core/libmultiprocess#224: doc: fix typos
f4344ae87da0 Merge bitcoin-core/libmultiprocess#222: test, ci: Fix threadsanitizer errors in mptest
1434642b3804 doc: fix typos
73d22ba2e930 test: Fix tsan race in thread busy test
b74e1bba014d ci: Use tsan-instrumented cap'n proto in sanitizers job
c332774409ad test: Fix failing exception check in new thread busy test
ca3c05d56709 test: Use KJ_LOG instead of std::cout for logging
7eb1da120ab6 ci: Use tsan-instrumented libcxx in sanitizers job
ec86e4336e98 Merge bitcoin-core/libmultiprocess#220: Add log levels and advertise them to users via logging callback
515ce93ad349 Logging: Pass LogData struct to logging callback
213574ccc43d Logging: reclassify remaining log messages
e4de0412b430 Logging: Break out expensive log messages and classify them as Trace
408874a78fdc Logging: Use new logging macros
67b092d835cd Logging: Disable logging if messsage level is less than the requested level
d0a1ba7ebf21 Logging: add log levels to mirror Core's
463a8296d188 Logging: Disable moving or copying Logger
83a2e10c0b03 Logging: Add an EventLoop constructor to allow for user-specified log options
58cf47a7fc8c Merge bitcoin-core/libmultiprocess#221: test default PassField impl handles output parameters
db03a663f514 Merge bitcoin-core/libmultiprocess#214: Fix crash on simultaneous IPC calls using the same thread
afcc40b0f1e8 Merge bitcoin-core/libmultiprocess#213: util+doc: Clearer errors when attempting to run examples + polished docs
6db669628387 test In|Out parameter
29cf2ada75ea test default PassField impl handles output parameters
1238170f68e8 test: simultaneous IPC calls using same thread
eb069ab75d83 Fix crash on simultaneous IPC calls using the same thread
ec03a9639ab5 doc: Precision and typos
2b4348193551 doc: Where possible, remove links to ryanofsky/bitcoin/
286fe469c9c9 util: Add helpful error message when failing to execute file
47d79db8a552 Merge bitcoin-core/libmultiprocess#201: bug: fix mptest hang, ProxyClient<Thread> deadlock in disconnect handler
f15ae9c9b9fb Merge bitcoin-core/libmultiprocess#211: Add .gitignore
4a269b21b8c8 bug: fix ProxyClient<Thread> deadlock if disconnected as IPC call is returning
85df96482c49 Use try_emplace in SetThread instead of threads.find
ca9b380ea91a Use std::optional in ConnThreads to allow shortening locks
9b0799113557 doc: describe ThreadContext struct and synchronization requirements
d60db601ed9b proxy-io.h: add Waiter::m_mutex thread safety annotations
4e365b019a9f ci: Use -Wthread-safety not -Wthread-safety-analysis
15d7bafbb001 Add .gitignore
fe1cd8c76131 Merge bitcoin-core/libmultiprocess#208: ci: Test minimum cmake version in olddeps job
b713a0b7bfbc Merge bitcoin-core/libmultiprocess#207: ci: output CMake version in CI script
0f580397c913 ci: Test minimum cmake version in olddeps job
d603dcc0eef0 ci: output CMake version in CI script
git-subtree-dir: src/ipc/libmultiprocess
git-subtree-split: a4f92969649018ca70f949a09148bccfeaecd99a
71ee0163de qt: 30.0rc3 translations update (Hennadii Stepanov)
Pull request description:
This PR updates the Polish (pl) translation and addresses [this](https://github.com/bitcoin/bitcoin/pull/33275#issuecomment-3329617679) comment.
Updates for other languages have been skipped, as I believe the review effort would not be worthwhile at this stage of the release process.
ACKs for top commit:
maflcko:
Though, this lgtm ACK 71ee0163de
janb84:
ACK 71ee0163de
Tree-SHA512: e9ee8146542d0928f5ddaac5b2cb0c0032cd7d236fc19b38fd4ebe91e13eccdfa7d25ff279376c3f27f0bc461729b2c0574fedbb670a2555bc7a534e5ec0cd76
QT translations are optional, but the script would error when
'translations_dir' falls back to its default value NULL.
This PR fixes it by moving the set-up of QT translations under
the check for 'translations_dir' presence.
Github-Pull: #33482
Rebased-From: 7b5261f7ef
Modern Ubuntu isn't shipping with this library installed by default.
Staticly link it to remove the need for end-users to install it.
Closes#33432.
Github-Pull: #33434
Rebased-From: eca50854e1
Not enforcing TRUC topology on reorg was the intended
behavior, but the appropriate bypass argument was not
checked.
This mistake means we could potentially invalidate a long
chain of perfectly incentive-compatible transactions that
were made historically, including subsequent non-TRUC
transactions, all of which may have been very high feerate.
Lastly, it wastes CPU cycles doing topology checks since
this behavior cannot actually enforce the topology in
general for the reorg setting.
Github-Pull: #33504
Rebased-From: 26e71c237d
Using bypass_limits=true is essentially fuzzing part of a
reorg only, and results in TRUC invariants unable to be
checked. Remove most instances of bypassing limits, leaving
one harness able to do so.
Github-Pull: #33504
Rebased-From: bbe8e9063c
A target field was added to the getblock and getblockheader RPC calls in bitcoin#31583, but it mistakingly always used the tip value.
Because regtest does not have difficulty adjustment, a test is added for mainnet instead.
Github-Pull: #33446
Rebased-From: bf7996cbc3
The next commit requires an additional mainnet block which changes the difficulty.
Also fix a few minor mistakes in the test (suite):
- rename the create_coinbase retarger_period argument to halving_period. Before bitcoin#31583 this was hardcoded for regtest where these values are the same.
- drop unused fees argument from mine helper
Finally the CPU miner instructions for generating the alternative mainnet chain are expanded.
Github-Pull: #33446
Rebased-From: 4c3c1f42cf
7ebdfa2173 ci: link against -lstdc++ in native fuzz with msan job (fanquake)
ecbcef33d6 doc: remove unrelated `bitcoin-wallet` binary from `libbitcoin_ipc` description (Sebastian Falbesoner)
8c973d6614 ci: disable cirrus cache in 32bit arm job (will)
2378bbf356 ci: refactor docker action to return provider str (will)
acf7d53ace test: split out `system_ram_tests` to signal when total ram cannot be determined (Lőrinc)
ce56548c63 system: improve handling around GetTotalRAM() (Vasil Dimov)
5226a92f28 coins: warn on oversized -dbcache (Lőrinc)
49d4ebcbfe system: add helper for fetching total system memory (Lőrinc)
0a80b1ae62 doc: update manual pages for v30.0rc2 (fanquake)
b8fb918969 build: bump version to v30.0rc2 (fanquake)
792a75ac86 build(windows): Remove lingering registry entries and shortcuts upon install (Hodlinator)
1bc3be1962 p2p: Increase tx relay rate (Anthony Towns)
4b02bc1a72 test: Avoid interface_ipc.py Duplicate ID errors (Ryan Ofsky)
Pull request description:
Backports:
* #28592
* #33302
* #33333
* #33420
* #33422
* #33425
* #33435
* #33459
Finalise `v30.0rc2`
ACKs for top commit:
willcl-ark:
ACK 7ebdfa2173
hebasto:
ACK 7ebdfa2173, I applied all backports locally without conflicts and obtained a zero diff with this PR branch.
Tree-SHA512: 73d641a5d783511a959e63f240453bb020705cb620b85a5a0968b32b937ac28816ef142f78bdf41976ed1c2bee431def945c5c37da33621031e3198cfdae51f3
`bitcoin-wallet` as-is is merely an offline wallet inspection tool
(introduced more than 9 years ago in PR #13926) that doesn't have any
relation with IPC/multiprocess, so remove it from the list of binaries
that use `libbitcoin_ipc`.
Github-Pull: #33459
Rebased-From: fbde8d9a81
Co-authored-by: Max Edwards <youwontforgetthis@gmail.com>
Add an optional matrix field allowing opt-out of configuring cirrus
GHA cache when not using cirrus runners.
This is not needed for the cirruslabs/[save|restore]-cache actions, as
they automatically fallback based on runner type.
Github-Pull: #33302
Rebased-From: 00c253d494
when `GetTotalRAM` returns an `std::nullopt` now we're getting:
```
The following tests did not run:
106 - system_ram_tests (Skipped)
```
GitHub-Pull: #33435
Rebased-From: 56791b5829
Oversized allocations can cause out-of-memory errors or [heavy swapping](https://github.com/getumbrel/umbrel-os/issues/64#issuecomment-663637321), [grinding the system to a halt](https://x.com/murchandamus/status/1964432335849607224).
`LogOversizedDbCache()` now emits a startup warning if the configured `-dbcache` exceeds a cap derived from system RAM, using the same parsing/clamping as cache sizing via CalculateDbCacheBytes(). This isn't meant as a recommended setting, rather a likely upper limit.
Note that we're not modifying the set value, just issuing a warning.
Also note that the 75% calculation is rounded for the last two numbers since we have to divide first before multiplying, otherwise we wouldn't stay inside size_t on 32-bit systems - and this was simpler than casting back and forth.
We could have chosen the remaining free memory for the warning (e.g. warn if free memory is less than 1 GiB), but this is just a heuristic, we assumed that on systems with a lot of memory, other processes are also running, while memory constrained ones run only Core.
If total RAM < 2 GiB, cap is `DEFAULT_DB_CACHE` (`450 MiB`), otherwise it's 75% of total RAM.
The threshold is chosen to be close to values commonly used in [raspiblitz](https://github.com/raspiblitz/raspiblitz/blob/dev/home.admin/_provision.setup.sh#L98-L115) for common setups:
| Total RAM | `dbcache` (MiB) | raspiblitz % | proposed cap (MiB) |
|----------:|----------------:|-------------:|-------------------:|
| 1 GiB | 512 | 50.0% | 450* |
| 2 GiB | 1536 | 75.0% | 1536 |
| 4 GiB | 2560 | 62.5% | 3072 |
| 8 GiB | 4096 | 50.0% | 6144 |
| 16 GiB | 4096 | 25.0% | 12288 |
| 32 GiB | 4096 | 12.5% | 24576 |
[Umbrel issues](https://github.com/getumbrel/umbrel-os/issues/64#issuecomment-663816367) also mention 75% being the upper limit.
Starting `bitcoind` on an 8 GiB rpi4b with a dbcache of 7 GiB:
> ./build/bin/bitcoind -dbcache=7000
warns now as follows:
```
2025-09-07T17:24:29Z [warning] A 7000 MiB dbcache may be too large for a system memory of only 7800 MiB.
2025-09-07T17:24:29Z Cache configuration:
2025-09-07T17:24:29Z * Using 2.0 MiB for block index database
2025-09-07T17:24:29Z * Using 8.0 MiB for chain state database
2025-09-07T17:24:29Z * Using 6990.0 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space)
```
Besides the [godbolt](https://godbolt.org/z/EPsaE3xTj) reproducers for the new total memory method, we also tested the warnings manually on:
- [x] Apple M4 Max, macOS 15.6.1
- [x] Intel Core i9-9900K, Ubuntu 24.04.2 LTS
- [x] Raspberry Pi 4 Model B, Armbian Linux 6.12.22-current-bcm2711
- [x] Intel Xeon x64, Windows 11 Home Version 24H2, OS Build 26100.4351
Co-authored-by: stickies-v <stickies-v@protonmail.com>
Co-authored-by: Hodlinator <172445034+hodlinator@users.noreply.github.com>
Co-authored-by: w0xlt <woltx@protonmail.com>
Github-Pull: #33333
Rebased-From: 168360f4ae
Added a minimal system helper to query total physical RAM on [Linux/macOS/Windows](https://stackoverflow.com/a/2513561) (on other platforms we just return an empty optional).
The added test checks if the value is roughly correct by checking if the CI platforms are returning any value and if the value is at least 1 GiB and not more than 10 TiB.
The max value is only validated on 64 bits, since it's not unreasonable for 32 bits to have max memory, but on 64 bits it's likely an error.
https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/ns-sysinfoapi-memorystatusex
> ullTotalPhys The amount of actual physical memory, in bytes.
https://man7.org/linux/man-pages/man3/sysconf.3.html:
> _SC_PHYS_PAGES The number of pages of physical memory. Note that it is possible for the product of this value and the value of _SC_PAGESIZE to overflow.
> _SC_PAGESIZE Size of a page in bytes. Must not be less than 1.
See https://godbolt.org/z/ec81Tjvrj for further details
Github-Pull: #33333
Rebased-From: 6c720459be
Prior releases installed using these paths. Especially annoying was that the lingering registry entry for the uninstaller would show up as "Bitcoin Core (64-bit)" besides the current "Bitcoin Core" entry in the list of installed programs, and whichever was uninstalled last would fail to work as they would default to the same install directory.
Github-Pull: #33422
Rebased-From: 79752b9c0b
In the presence of smaller transactions on the network, blocks can sustain a
higher relay rate than 7tx/second. In this event, the per-peer inventory queues
can grow too large.
This commit bumps the rate up to 14 tx/s (for inbound peers), increasing the
safety margin by a factor of 2.
Outbound peers continue to receive relayed transactions at 2.5x the rate of
inbound peers, for a rate of 35tx/second.
Co-Authored-By: Suhas Daftuar <sdaftuar@gmail.com>
Github-Pull: #28592
Rebased-From: b81f37031c
This change should fix issue https://github.com/bitcoin/bitcoin/issues/33417
reported by zaidmstrr. It's possible to reproduce the `mp/proxy.capnp:0:
failed: Duplicate ID @0xcc316e3f71a040fb` error by installing libmultiprocess
system-wide, or to one of the locations listed in the python test's `imports`
list before the local libmultiprocess subtree, and then running the test.
Github-Pull: #33420
Rebased-From: e9c52272eb
33a0d4bb5b qt: 30.0rc2 translations update (Hennadii Stepanov)
Pull request description:
This PR updates Spanish (es) and Czech (cs) translations and addresses the following comments:
- https://github.com/bitcoin/bitcoin/pull/33275#issuecomment-3315273628
- https://github.com/bitcoin/bitcoin/pull/33275#issuecomment-3316206549
Updates for other languages were skipped, as I believe the review effort would not be worthwhile at this stage of the release process.
ACKs for top commit:
fanquake:
ACK 33a0d4bb5b.
Tree-SHA512: 94c1c1fb4a0079f3e733c573ba1fddd149307ec39220e811d33f5bbfd929a634b24ef9adbe9e789bd0127539ce5e134dde3a241db0e233d53446abf96a4d49b6
c9f751090c cmake: Install `bitcoin` manpage (Hennadii Stepanov)
2327b2b0db net: Do not apply whitelist permission to onion inbounds (Martin Zumsande)
26208b3a0c test: Add submitblock test in interface_ipc (TheCharlatan)
3ae592537d test: Prevent disk space warning during node_init_tests (Ryan Ofsky)
5dbb1bae38 ci: Enable CI_LIMIT_STACK_SIZE=1 in i686_no_ipc task (MarcoFalke)
c7faf72ac6 test: Fix CLI_MAX_ARG_SIZE issues (MarcoFalke)
0a2afbeb77 cmake: Fix regression in `secp256k1.cmake` (Hennadii Stepanov)
75026cddea wallet: Add m_cached_from_me to cache "from me" status (Ava Chow)
bbb4e118f3 test: Add a test for anchor outputs in the wallet (Ava Chow)
b85dc7ed3a wallet: Throw an error in sendall if the tx size cannot be calculated (Ava Chow)
d2be9a22d8 wallet: Determine IsFromMe by checking for TXOs of inputs (Ava Chow)
ad6c13e041 test: Test wallet 'from me' status change (Ava Chow)
35038b03c9 trace: Workaround GCC bug compiling with old systemtap (Luke Dashjr)
f7eded1dca ci: always use tag for LLVM checkout (fanquake)
6b19ede1a5 gui: Avoid pathological QT text/markdown behavior... (David Gumberg)
Pull request description:
Backports:
* #33243
* #33268
* #33310
* #33364
* #33379
* #33380
* #33391
* #33407
* https://github.com/bitcoin-core/gui/pull/886
ACKs for top commit:
darosior:
utACK c9f751090c
hebasto:
ACK c9f751090c, I applied all backports locally without conflicts and obtained a zero diff with this PR branch.
Tree-SHA512: 257cc5bd0423fbf2aff62c72957faea3de8731353d809b11e18d0e5cad174c7023dca9dedd0c73e07497eb804b7c48355a055b4461db260e2f0a5712d2514ff6
