Description

vstinner

opened on Jun 10, 2026

Issue body actions

Bug report

Currently, running test_faulthandler on UBSan logs multiple errors. Errors are logged by subprocesses run by the test.

I'm working on fixing these errors.

Linked PRs

• gh-151278: Fix test_faulthandler on UBSan #151279
• [3.15] gh-151278: Fix test_faulthandler on UBSan (GH-151279) #151281
• [3.14] gh-151278: Fix test_faulthandler on UBSan (#151279) #151282

Activity

1. vstinner

   added

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

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

   on Jun 10, 2026
2. vstinner commented on Jun 10, 2026

   

   vstinner

   on Jun 10, 2026

   MemberAuthor

   More actions

   See also #151274 (comment) for test_capi failure.
3. vstinner

   added 2 commits that reference this issue on Jun 10, 2026

   gh-151278: Fix test_faulthandler on UBSan (#151279)

   e60c42d

   [3.15] gh-151278: Fix test_faulthandler on UBSan (GH-151279) (#151281)

   e8d914f
4. vstinner commented on Jun 10, 2026

   

   vstinner

   on Jun 10, 2026

   MemberAuthor

   More actions

   I created #151284 for test_capi.
5. vstinner

   added a commit that references this issue on Jun 10, 2026

   [3.14] gh-151278: Fix test_faulthandler on UBSan (#151279) (#151282)

   7befb46
6. vstinner commented on Jun 10, 2026

   

   vstinner

   on Jun 10, 2026

   MemberAuthor

   More actions

   I didn't backport the fix to 3.13 since Python raises too many UBSan errors in 3.13.
7. vstinner

   closed this as completedon Jun 10, 2026
8. philthompson10

   added a commit that references this issue on Jun 17, 2026

   pythongh-151278: Fix test_faulthandler on UBSan (python#151279)

   29b3b75

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