fanquake

Still produces for me on Fedora: ```bash ./autogen.sh && ./configure CC=clang CXX=clang++ && make -C src bitcoind -j17 test/functional/test_runner.py example_test.py --combinedlogslen=19999 --timeout-factor=12 --valgrind ... node0 stderr ==12061== Thread 25 b-msghand:...

> Ok, so that seems like a typo in the initial report? No, it was Clang 17 yesterday.

It seems like the easiest path forward here is to suppress the two assumed Valgrind false positives, linking to the upstream report.

I think we could move to Ocular (gives us Valgrind 3.23.0, and we remember to switch to 25 before June), Clang 18 (31273) + some suppressions. Was running some tests...

> Also, the suppression won't work for libc++ We aren't using libc++ though?

> Are you still working on this?

Closing for now, due to no/lack of followup. Please leave a comment, if you want this reopened.

> 6.7 [Supported Platforms](https://doc.qt.io/archives/qt-6.7/supported-platforms.html). According to that page, most of what we do isn't supported. GCC 13, macOS cross compilation, our mingw-w64 compiler, a number of the linux architectures we...

Ping also @mzumsande, given you [expressed some reservations](https://github.com/bitcoin/bitcoin/pull/28043#pullrequestreview-1846077000) to this approach last time.

Backported to 29.x in #32810.