Description

cmaloney

opened on Nov 20, 2024

Issue body actions

Bug report

Bug description:

Initially reported in PR comments: #123413

There looks like three cases to investigate/work on from this:

1. Gentoo + musl -> there is an extra mmap call
2. Gentoo + sandbox -> many additional calls (Probably an environment to disable in if can detect)
3. Should there be a more general switch to disable?

relates to: gh-120754

My first thought for 1 is mmap could generally be filtered out (it has shown up moderately frequently in my testing on other systems, generally used for memory allocation in wrapping). Working on setting up a Gentoo environment to test / experiment / investigate locally and develop patches.

cc: @mgorny, @vstinner, @gpshead, @hauntsaninja

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-127076: Disable strace tests under LD_PRELOAD #127086
• gh-127076: Ignore memory mmap in FileIO testing #127088

Activity

1. cmaloney

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Nov 20, 2024
2. cmaloney

   added 2 commits that reference this issue on Nov 21, 2024

   pythongh-127076: Disable strace tests under LD_PRELOAD

   460958b

   pythongh-127076: Disable strace tests under LD_PRELOAD

   b335875
3. picnixz

   added

   testsTests in the Lib/test dirTests in the Lib/test dir

   on Nov 21, 2024
4. vstinner

   added 2 commits that reference this issue on Nov 21, 2024

   gh-127076: Disable strace tests under LD_PRELOAD (#127086)

   ff2278e

   gh-127076: Ignore memory mmap in FileIO testing (#127088)

   46f8a7b
5. cmaloney commented on Nov 22, 2024

   

   cmaloney

   on Nov 22, 2024

   ContributorAuthor

   More actions

   @mgorny good to close / Gentoo build working with latest main (and hopefully that will mean with next alpha as well)?
6. mgorny commented on Nov 22, 2024

   

   mgorny

   on Nov 22, 2024

   Contributor

   More actions

   Yes, looks like these tests now pass on musl, and are skipped in sandbox. Thanks a lot!

   Reacted by Cody Maloney
7. cmaloney

   closed this as completedon Nov 22, 2024
8. ebonnal

   added 2 commits that reference this issue on Jan 12, 2025

   pythongh-127076: Disable strace tests under LD_PRELOAD (python#127086)

   983d258

   pythongh-127076: Ignore memory mmap in FileIO testing (python#127088)

   085a520

Issue actions