gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization#105805

jbms

This splits off the change from #28525 to hang threads that attempt to acquire the GIL during interpreter shutdown, but does not introduce any new public APIs.

Issue: pthread_exit & PyThread_exit_thread from PyEval_RestoreThread etc. are harmful #87135

📚 Documentation preview 📚: https://cpython-previews--105805.org.readthedocs.build/

… during finalization

vstinner

Well, as I wrote in issue #87135, I dislike switching to this behavior by default :-(

I would prefer to keep the current behavior by default, but give the ability to hang for people impacted by pthread_exit() issues.

gpshead

I would prefer to keep the current behavior by default, but give the ability to hang for people impacted by pthread_exit() issues.

My problem with that and reason why we need this PR is that the answer to "who is going to use that ability" is unclear. End users of Python applications don't have a way to debug random thread crashes and know that they need it. Extension module authors do not know that they need it. A few big application owners will simply blindly turn it on for everything because they happen to have people aware of the consequences of not going it. But there is no good point to turn such a conditional of "hang threads rather than allow them to randomly crash or refuse to run C++ finalizers despite releasing the associated memory meaning other threads can crash because multiple other things are using the previously allocated and then freed memory". Those concurrency scribbling messes are far worse things to attempt to debug than a simple hung thread, hung within a clear C symbol saying "hi there, i'm going to hang this thread".

So I'm all for undoing our mistaken thread exiting API and use of it in favor of this least bad option of hanging threads that would otherwise have failed to cleanup and left ambiguious process state behind as we have had in the past.

I do still think we want APIs to allow error handling upon re-entering an interpreter or acquiring the GIL and actually failing instead of this... but we don't have those. and most of the world's Python C API using code won't be using such new APIs for a looong time while the random crashing problem would persist. So this remains the least bad option that makes a viable improvement.

gpshead

@colesbury and/or @mpage, and @ericsnowcurrently - can you take a look at this PR? (FWIW, Eric's already gone over it with my on screen at the core dev sprint here)

mpage

Blocking daemon threads after the VM has been finalized seems less error prone than forcing the threads to exit. I believe this is also how the JVM handles the same situation, so there's some precedence for this approach.

While we're here, I think this might be a good time to also fix the issues with threads referencing their PyThreadStates after they have been freed. This would allow us to avoid having to introduce new APIs to put threads to sleep. Instead, threads could block on a lock in their PyThreadState that is never released (also what the JVM does). I believe @colesbury suggested refcounting PyThreadStates as a solution to the PyThreadState lifetime problem.

colesbury

I agree with what @gpshead and @mpage wrote. I think this is the right choice for default behavior.

if any more, i'll just skip the test on wasi.

Linking to the filed pre-existing known issue.

gpshead

While we're here, I think this might be a good time to also fix the issues with threads referencing their PyThreadStates after they have been freed. This would allow us to avoid having to introduce new APIs to put threads to sleep. Instead, threads could block on a lock in their PyThreadState that is never released (also what the JVM does). I believe @colesbury suggested refcounting PyThreadStates as a solution to the PyThreadState lifetime problem.

That goes beyond the scope of what I want to accomplish with this PR - which I believe might mostly be a candidate for backporting as a bug fix (I'll see what the RMs think).

I think it is a good followup issue though - #124878 for starters but that might turn into a couple of different things to chase down as well.

gpshead

@Yhg1s what's your opinion on the viability of backporting this as a bugfix to 3.13 and 3.12 patch releases? People who actually encounter this in the form of strange crashes from threads during shutdown have been wanting it for years. I wouldn't call it common, just a thorn in some classes of applications side.

(In terms of impact I'd elide marking the deprecated C API as deprecated in the backports - otherwise I expect most of this to apply relatively easily given that it was originally authored on a 3.12 or earlier base and I only merged it forward to current main last week)

miss-islington-app

Thanks @jbms for the PR, and @gpshead for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12.
🐍🍒⛏🤖

miss-islington-app

Thanks @jbms for the PR, and @gpshead for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13.
🐍🍒⛏🤖

miss-islington-app

Sorry, @jbms and @gpshead, I could not cleanly backport this to 3.12 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 8cc5aa47ee464ddfd8da5461edecf4a5c72df2ff 3.12

miss-islington-app

Sorry, @jbms and @gpshead, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 8cc5aa47ee464ddfd8da5461edecf4a5c72df2ff 3.13

gpshead

I expected the backport automation to fail and need edits regardless even if it hadn't. I'll be taking care of them. :)

hugovk

Triage: @gpshead reminder about the backports :)

serhiy-storchaka

Please don't forget about backport. @gpshead

…the GIL during finalization (pythonGH-105805) Instead of surprise crashes and memory corruption, we now hang threads that attempt to re-enter the Python interpreter after Python runtime finalization has started. These are typically daemon threads (our long standing mis-feature) but could also be threads spawned by extension modules that then try to call into Python. This marks the `PyThread_exit_thread` public C API as deprecated as there is no plausible safe way to accomplish that on any supported platform in the face of things like C++ code with finalizers anywhere on a thread's stack. Doing this was the least bad option. (cherry picked from commit 8cc5aa4) Co-authored-by: Jeremy Maitin-Shepard <jeremy@jeremyms.com> Co-authored-by: Gregory P. Smith <greg@krypto.org>

bedevere-app

GH-137827 is a backport of this pull request to the 3.13 branch.

…L during finalization (GH-105805) (GH-137827) * [3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) Instead of surprise crashes and memory corruption, we now hang threads that attempt to re-enter the Python interpreter after Python runtime finalization has started. These are typically daemon threads (our long standing mis-feature) but could also be threads spawned by extension modules that then try to call into Python. This marks the `PyThread_exit_thread` public C API as deprecated as there is no plausible safe way to accomplish that on any supported platform in the face of things like C++ code with finalizers anywhere on a thread's stack. Doing this was the least bad option. (cherry picked from commit 8cc5aa4) Co-authored-by: Jeremy Maitin-Shepard <jeremy@jeremyms.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> * state "3.13.7 and earlier" * backport: do not add the deprecated marker * fix Py_IsFinalizing doc ref --------- Co-authored-by: Jeremy Maitin-Shepard <jeremy@jeremyms.com>

bedevere-bot

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Hi! The buildbot ARM Raspbian Linux Asan 3.13 (no tier) has failed when building commit 9face21.

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remote: Enumerating objects: 24, done.        
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remote: Total 24 (delta 5), reused 5 (delta 5), pack-reused 9 (from 2)        
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HEAD is now at 9face218e7b [3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)
Switched to and reset branch '3.13'

configure: WARNING: no system libmpdec found; falling back to bundled libmpdec (deprecated and scheduled for removal in Python 3.16)

In function ‘hashtable_key_from_2_strings’,
    inlined from ‘_extensions_cache_find_unlocked’ at Python/import.c:1264:17:
Python/import.c:1177:5: warning: ‘strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
 1177 |     strncpy(key, str1_data, str1_len);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Python/import.c:1163:27: note: length computed here
 1163 |     Py_ssize_t str1_len = strlen(str1_data);
      |                           ^~~~~~~~~~~~~~~~~
In function ‘word_to_string’,
    inlined from ‘coeff_to_string’ at ./Modules/_decimal/libmpdec/io.c:411:13,
    inlined from ‘_mpd_to_string’ at ./Modules/_decimal/libmpdec/io.c:612:18:
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 18: EXTRACT_DIGIT(s, x, 100000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
In function ‘word_to_string’,
    inlined from ‘coeff_to_string’ at ./Modules/_decimal/libmpdec/io.c:411:13,
    inlined from ‘_mpd_to_string’ at ./Modules/_decimal/libmpdec/io.c:608:18:
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 18: EXTRACT_DIGIT(s, x, 100000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
In function ‘word_to_string’,
    inlined from ‘coeff_to_string’ at ./Modules/_decimal/libmpdec/io.c:411:13,
    inlined from ‘_mpd_to_string’ at ./Modules/_decimal/libmpdec/io.c:502:22:
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 18: EXTRACT_DIGIT(s, x, 100000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:364:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  364 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:349:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  349 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:374:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  374 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~

Timeout (0:05:00)!
Thread 0x0000007fa9aef100 (most recent call first):
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/subprocess.py", line 2045 in _wait
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/subprocess.py", line 1280 in wait
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 188 in _run_process
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 293 in run_tmp_files
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 357 in _runtest
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 397 in run
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/threading.py", line 1043 in _bootstrap_inner
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/threading.py", line 1014 in _bootstrap

Thread 0x0000007faa2ff100 (most recent call first):
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/subprocess.py", line 2024 in _try_wait
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/subprocess.py", line 2049 in _wait
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/subprocess.py", line 1280 in wait
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 188 in _run_process
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 293 in run_tmp_files
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 357 in _runtest
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 397 in run
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/threading.py", line 1043 in _bootstrap_inner
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/threading.py", line 1014 in _bootstrap

Thread 0x0000007fb5c23500 (most recent call first):
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/logger.py", line 36 in log
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 547 in _get_result
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/run_workers.py", line 604 in run
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/main.py", line 432 in _run_tests_mp
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/main.py", line 537 in _run_tests
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/main.py", line 577 in run_tests
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/main.py", line 746 in main
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/libregrtest/main.py", line 754 in main
  File "/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/Lib/test/__main__.py", line 2 in <module>
  File "<frozen runpy>", line 88 in _run_code
  File "<frozen runpy>", line 198 in _run_module_as_main
make: *** [Makefile:2252: buildbottest] Error 1

Cannot open file '/home/buildbot/buildarea/3.13.pablogsal-rasp.asan/build/test-results.xml' for upload

bedevere-bot added the awaiting review label Jun 14, 2023

bedevere-bot mentioned this pull request Jun 14, 2023

pthread_exit & PyThread_exit_thread from PyEval_RestoreThread etc. are harmful #87135

Closed

jbms force-pushed the new-gil-hang branch from 5bb5f69 to 05ec9e8 Compare June 14, 2023 23:55

jbms mentioned this pull request Jun 14, 2023

gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization #28525

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pythongh-87135: Hang non-main threads that attempt to acquire the GIL… …

30c8135

… during finalization

jbms force-pushed the new-gil-hang branch from 05ec9e8 to 30c8135 Compare June 15, 2023 00:00

ericsnowcurrently requested review from ericsnowcurrently and gpshead July 31, 2023 15:20

ericsnowcurrently mentioned this pull request Aug 16, 2023

_Py_IsFinalizing has been removed, meaning C/C++ threads cannot avoid termination during shutdown #108014

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2 tasks

vstinner reviewed Aug 16, 2023

View reviewed changes

ericsnowcurrently mentioned this pull request Sep 23, 2023

PyThreadState_Swap() During Finalization Causes Immediate Exit (AKA Daemon Threads Are Still the Worst!) #109793

Closed

gpshead self-assigned this Sep 26, 2024

gpshead added 7 commits September 26, 2024 06:17

Merge branch 'main' into new-gil-hang

3c3d552

docs fixups

da37473

doc fixup, use the new next versionchanged docs feature.

3ec84f6

deprecated in 3.14

2bc54ca

use the gh- ref instead of bpo- everywhere.

80d2c49

Remove wrong comments, improve others.

9b1eaf6

expand the comment.

cf76777

ericsnowcurrently mentioned this pull request Sep 26, 2024

Fail PyGILState_Ensure() If Finalizing? #124622

Open

more docs

2dae315

gpshead mentioned this pull request Sep 27, 2024

gh-123940: Ensure force-terminated daemon threads can be joined #124150

Closed

update a comment

28118a0

vstinner reviewed Sep 27, 2024

View reviewed changes

colesbury reviewed Sep 30, 2024

View reviewed changes

gpshead added 2 commits October 1, 2024 22:30

address review comments.

87249ab

include what you use for pause()

afe5507

gpshead added 4 commits October 2, 2024 00:29

improve comments.

e05a127

Merge branch 'main' into new-gil-hang

ec0e07a

wasi doesn't have pause()?!? try sleep(9999999)

1569700

more wasi workarounds. …

ac3b2ce

if any more, i'll just skip the test on wasi.

gpshead mentioned this pull request Oct 2, 2024

race condition in threading when interpreter finalized while daemon thread runs (thread sanitizer identified) #124878

Closed

Skip the new test under TSAN (and MSAN). …

ac3d2be

Linking to the filed pre-existing known issue.

gpshead merged commit 8cc5aa4 into python:main Oct 2, 2024

bedevere-app Bot removed the awaiting review label Oct 2, 2024

gpshead added needs backport to 3.12 only security fixes needs backport to 3.13 bugs and security fixes labels Oct 28, 2024

smonkewitz mentioned this pull request Dec 9, 2024

Process gets aborted during interpreter shutdown when a duckdb connection is present in a child thread. duckdb/duckdb#13904

Open

2 tasks

hugovk removed the needs backport to 3.12 only security fixes label Apr 9, 2025

bedevere-app Bot removed the needs backport to 3.13 bugs and security fixes label Aug 15, 2025

scw mentioned this pull request Nov 12, 2025

PyEval_AcquireThread can crash process if called from another thread at interpreter shutdown pytorch/pytorch#117762

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