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Fix sqrt(sqrt(2)) memory leak in ginac numeric.cpp #36046

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merged 3 commits into from
Aug 27, 2023

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@vbraun vbraun commented Aug 8, 2023

Fix the memory leak when computing the outer sqrt in sqrt(sqrt(2)), as reported on sage devel at https://groups.google.com/g/sage-devel/c/6zpxQKXtJgk

The unit test is a WIP and depends on tekknolagi/valgrind#1

@vbraun vbraun force-pushed the u/vbraun/fix-mem-leak-sqrt-sqrt-2 branch from 5723eea to 2286629 Compare August 13, 2023 18:35
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vbraun commented Aug 13, 2023

Note to self: the numeric::numeric ctor transfers ownership of the mpz_t, so no clear in that one code path. Tests pass now!

Setting this to needs review for now, a better valgrind integration needs the pypi/valgrind PR that will be tracked there.

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Documentation preview for this PR (built with commit 2286629; changes) is ready! 🎉

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mkoeppe commented Aug 13, 2023

Use the new .supp file in src/bin/sage-valgrind too?

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vbraun commented Aug 14, 2023

sage-valgrind has bigger problems than the suppression file, it instruments the shell launching python and not python itself. I'd rather leave fixing it for a separate ticket.

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LGTM

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Works for me, thanks!

vbraun pushed a commit to vbraun/sage that referenced this pull request Aug 23, 2023
    
Fix the memory leak when computing the outer sqrt in `sqrt(sqrt(2))`, as
reported on sage devel at https://groups.google.com/g/sage-
devel/c/6zpxQKXtJgk

The unit test is a WIP and depends on
tekknolagi/valgrind#1

- Resolves sagemath#33074
    
URL: sagemath#36046
Reported by: Volker Braun
Reviewer(s): Matthias Köppe
@vbraun vbraun merged commit aededc6 into sagemath:develop Aug 27, 2023
13 of 15 checks passed
@mkoeppe mkoeppe added this to the sage-10.2 milestone Aug 27, 2023
@tscrim tscrim mentioned this pull request Aug 6, 2024
5 tasks
vbraun pushed a commit to vbraun/sage that referenced this pull request Aug 27, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 5, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 6, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 8, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 8, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 10, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 12, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
vbraun pushed a commit to vbraun/sage that referenced this pull request Sep 14, 2024
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

As noted in
sagemath#36046 (comment),
`sage -t --valgrind` does not work because it instruments the wrong
process.

As part of the fix, we move the contents of `src/bin/sage-runtests` to
`src/bin/sage/doctest/__main__.py` so that the doctester can be invoked
as `sage -python -m sage.doctest`.

We also arrange for `sage -t --valgrind` to use the suppressions file
added in sagemath#36046.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation accordingly.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#37569
Reported by: Matthias Köppe
Reviewer(s): Kwankyu Lee
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Update valgrind suppressions
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