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rebase patches for cython 0.29.33 #2

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merged 1 commit into from
Mar 17, 2023

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@dimpase dimpase commented Mar 17, 2023

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@mkoeppe mkoeppe merged commit e3a62ec into mkoeppe:cython-0.29.33 Mar 17, 2023
mkoeppe pushed a commit that referenced this pull request Mar 18, 2023
* Improve camera positioning for threejs

* Changes to sagedoc, stopgap and superseded; one mass replacement

* Another mass replacement

* Another mass replacement

* Another replacement

* Another replacement

* Remove comment numbers

* Fix a couple of strays

* trac ticket -> github issue

* Change checksums back, fix meta-ticket

* Another mass replacement

* Another mass replacement

* Another mass replacement

* Manual fixes

* Small replacement

* Small replacement

* Fix typo

* Add github role to tox

* add explicit formulas to documentation of WeierstrassIsomorphism

* lift documentation from .__init__() to class and tweak

* add doctest for sagemath#20847

* add .torsion_basis() method to EllipticCurve_finite_field

* Revert "Remove comment numbers"

This reverts commit 27cdf3e.

* Revert changes to git_trac.rst

* Switch :github: to :issue:

* Switch from sage-prod to sage in attachment links

* Change trac_number to issue_number

* cross linked matrix method

* Add construction of strongly regular digraph

* A few manual fixes

* Another automatic change

* Undo a bunch of changes in the doc directory

* Another fix

* Try to fix sphinx problem

* Move comment tag inside

* allowing iterables as input

* Fix code style

* generalized fix

* converting iterables

* added is_supergreedy() function

* implemented diff algo, for borderline cases

* correcting function for disjoint set of points

* correcting function

* documentation changes

* minor chagnges

* fixing_failing_tests

* minor documentation correction

* Update linear_extensions.py

* corrected TeX maths in docstrings

* further fixes to supergreedy docstring

* Added Reference

* adding reference

* minor updates

* correcting documentation errors

* correct a wrong change to :trac:

* remove spurrious blank line

* another spurrious line removed

* compute matrix kernels modulo composites

* fix doctests

* docstring style tweak

* adding doctests

* correct the import location (duh...)

* adding colored permutation doctests

* doctests fixes

* replaced "Combining Caron"+c with one unicode character

* Updated SageMath version to 10.0.beta1

---------

Co-authored-by: Kwankyu Lee <ekwankyu@gmail.com>
Co-authored-by: David Roe <roed.math@gmail.com>
Co-authored-by: Lorenz Panny <lorenz@yx7.cc>
Co-authored-by: Marc Mezzarobba <marc@mezzarobba.net>
Co-authored-by: Tobias Diez <code@tobiasdiez.com>
Co-authored-by: Sandstorm831 <gargrohan138@gmail.com>
Co-authored-by: Rohan Garg <76916164+Sandstorm831@users.noreply.github.com>
Co-authored-by: Dima Pasechnik <dima@pasechnik.info>
Co-authored-by: Release Manager <release@sagemath.org>
mkoeppe pushed a commit that referenced this pull request Mar 26, 2023
    
### 📚 Description

Trac branch `u/gh-collares/gap-gc` from sagemath#34701, now migrated to GitHub.
Currently based atop sagemath#35093; will rebase once that is merged.

The rest of the description below is copied from sagemath#34701:

A refactor in sagemath#27946 introduced "unprotected" (not surrounded by
`GAP_Enter`/`GAP_Leave`) `GAP_ValueGlobalVariable` calls. I believe this
might be a GC hazard, because after updating to GAP 4.12.1 I started
seeing aarch64 crashes on NixOS infrastructure such as:

```
#0  0x0000fffff79740e8 in wait4 ()
#1  0x0000fffff5dc6b78 in print_enhanced_backtrace ()
#2  0x0000fffff5dc8190 in sigdie ()
#3  0x0000fffff5dcb1c0 in cysigs_signal_handler ()
#4  0x0000fffff7ffb7cc in __kernel_rt_sigreturn ()
#5  0x0000ffff99a0bf28 in ConvString ()
#6  0x0000000000000000 in ?? ()
#7  0x0000000000000000 in ?? ()
#8  0x0000000000000000 in ?? ()
#9  0x0000ffff99989930 in Pr ()
#10 0x0000ffff9998aa18 in CloseOutput ()
#11 0x0000ffff99884828 in capture_stdout () at /build/sage-
src-9.7/pkgs/sagemath-standard/sage/libs/gap/element.pyx:154
...
```
I also see cases where `capture_stdout` throws errors such as
`sage.libs.gap.util.GAPError: Error, Length: <list> must be a list (not
the integer 255)` and then crashes. Both types of errors are fixed by
this ticket.

Note that I am nesting `GAP_Enter`/`GAP_Leave` calls because I didn't
remove the preexisting calls inside `capture_stdout`. That's because I
feared removing the innermost calls might create a new footgun (and I
believe nested `GAP_Enter`/`GAP_Leave` calls are explicitly supported),
but removing them should cause no problem. Removing them might even be
preferable for performance reasons, I don't know.

Fixes sagemath#34701

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->
<!-- If your change requires a documentation PR, please link it
appropriately -->
<!-- If you're unsure about any of these, don't hesitate to ask. We're
here to help! -->

- [x] I have made sure that the title is self-explanatory and the
description concisely explains the PR.
- [x] I have linked an issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies
<!-- List all open pull requests that this PR logically depends on -->
<!--
- #xyz: short description why this is a dependency
- #abc: ...
-->
- sagemath#35093: GAP 4.12.2 upgrade, which touches the same function and should
land first.
    
URL: sagemath#35114
Reported by: Mauricio Collares
Reviewer(s): Dima Pasechnik
mkoeppe pushed a commit that referenced this pull request Jun 4, 2023
mkoeppe pushed a commit that referenced this pull request Jul 1, 2023
mkoeppe pushed a commit that referenced this pull request Jul 30, 2023
Update reference [HKL2021]: Appeared in 2022
mkoeppe pushed a commit that referenced this pull request Aug 28, 2023
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