gh-133304: workaround for RISC-V in PyFloat_Pack4/Unpack4()

[skirpichev]

• Issue: test_pack_unpack_roundtrip_for_nans failing on RISC-V buildbot #133304

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @skirpichev for commit 6fdf4a6 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F133328%2Fmerge

The command will test the builders whose names match following regular expression: risc

The builders matched are:

• riscv64 Ubuntu23 PR

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @skirpichev for commit 6fdf4a6 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F133328%2Fmerge

The command will test the builders whose names match following regular expression: x86

The builders matched are:

• x86 Debian Non-Debug with X PR
• x86-64 MacOS Intel NoGIL PR
• x86-64 MacOS Intel ASAN NoGIL PR
• x86-64 macOS PR
• x86 Debian Installed with X PR

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @skirpichev for commit 48a1041 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F133328%2Fmerge

The command will test the builders whose names match following regular expression: risc

The builders matched are:

• riscv64 Ubuntu23 PR

[vstinner]

LGTM, but does it work on Risc-V? :-) I didn't check buildbot.

[vstinner]

buildbot/riscv64 Ubuntu23 PR — Build done.

Ah yes, it works!

[vstinner]

Merged, thanks.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot iOS ARM64 Simulator 3.x (tier-3) has failed when building commit f16f06f.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1380/builds/3527) and take a look at the build logs.
4. Check if the failure is related to this commit (f16f06f) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1380/builds/3527

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last):
  File "/Users/buildbot/Library/Developer/XCTestDevices/7530802D-F7A4-40FF-B2FD-EF3A1E801DFC/data/Containers/Bundle/Application/F956122D-DAEA-4A16-9C11-0BE94ECD7522/iOSTestbed.app/python/lib/python3.14/threading.py", line 1079, in _bootstrap_inner
    self._context.run(self.run)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/Users/buildbot/Library/Developer/XCTestDevices/7530802D-F7A4-40FF-B2FD-EF3A1E801DFC/data/Containers/Bundle/Application/F956122D-DAEA-4A16-9C11-0BE94ECD7522/iOSTestbed.app/python/lib/python3.14/threading.py", line 1021, in run
    self._target(*self._args, **self._kwargs)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/buildbot/Library/Developer/XCTestDevices/7530802D-F7A4-40FF-B2FD-EF3A1E801DFC/data/Containers/Bundle/Application/F956122D-DAEA-4A16-9C11-0BE94ECD7522/iOSTestbed.app/python/lib/python3.14/test/test_interpreters/test_stress.py", line 30, in task
    interp = interpreters.create()
  File "/Users/buildbot/Library/Developer/XCTestDevices/7530802D-F7A4-40FF-B2FD-EF3A1E801DFC/data/Containers/Bundle/Application/F956122D-DAEA-4A16-9C11-0BE94ECD7522/iOSTestbed.app/python/lib/python3.14/test/support/interpreters/__init__.py", line 76, in create
    id = _interpreters.create(reqrefs=True)
interpreters.InterpreterError: interpreter creation failed
k

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot aarch64 Android 3.x (tier-3) has failed when building commit f16f06f.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1594/builds/2219) and take a look at the build logs.
4. Check if the failure is related to this commit (f16f06f) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1594/builds/2219

Summary of the results of the build (if available):

Click to see traceback logs

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/android/buildarea/3.x.mhsmith-android-aarch64/build/Android/android.py", line 530, in run_testbed
    async with asyncio.TaskGroup() as tg:
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/taskgroups.py", line 134, in __aexit__
    raise propagate_cancellation_error
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/asyncio/taskgroups.py", line 110, in __aexit__
    await self._on_completed_fut
asyncio.exceptions.CancelledError