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GeezerVison is showing github.com — gh-156114: Fix crash in perf trampoline with unencodable code names by ashm-dev · Pull Request #156300 · python/cpython

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@ashm-dev

@ashm-dev ashm-dev commented Aug 23, 2026 •
edited by bedevere-app Bot
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  • Issue: segfault/debug abort from perf_map_write_entry with lone surrogate in filename or qualname #156114

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@ashm-dev
Fix crash in perf trampoline with unencodable code names
59c9718
@bedevere-app bedevere-app Bot added the awaiting review label Aug 23, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Aug 23, 2026
segfault/debug abort from perf_map_write_entry with lone surrogate in filename or qualname #156114
Closed
ashm-dev added 2 commits August 23, 2026 23:29
@ashm-dev
Merge branch 'main' into pythongh-156114
37ce4bf
@ashm-dev
Skip unencodable name trampoline test on BOLT builds
b3f0c83
@ashm-dev

ashm-dev commented Sep 11, 2026

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@pablogsal could you review this? Fixes a crash in the perf trampoline with unencodable code names (gh-156114). Test included, CI green.
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ashm-dev added 2 commits September 17, 2026 14:34
@ashm-dev
Merge branch 'main' into pythongh-156114
d142286
@ashm-dev
Merge branch 'main' into pythongh-156114
07d6ba8
pablogsal
pablogsal approved these changes Sep 18, 2026
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@bedevere-app bedevere-app Bot added awaiting merge and removed awaiting review labels Sep 18, 2026
@pablogsal pablogsal added needs backport to 3.13 only security fixes needs backport to 3.14 bugs and security fixes needs backport to 3.15 bugs and security fixes labels Sep 18, 2026
@pablogsal
pablogsal merged commit 6dad8b8 into python:main Sep 18, 2026
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@miss-islington-app

miss-islington-app Bot commented Sep 18, 2026

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Thanks @ashm-dev for the PR, and @pablogsal for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15.
🐍🍒⛏🤖
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@bedevere-app bedevere-app Bot removed the awaiting merge label Sep 18, 2026
@pablogsal

pablogsal commented Sep 18, 2026

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Thanks a lot for the fix!
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@miss-islington-app

miss-islington-app Bot commented Sep 18, 2026

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Sorry, @ashm-dev and @pablogsal, I could not cleanly backport this to 3.14 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 6dad8b88cc39d8f9f41c22502a0b52304b326dd9 3.14
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@miss-islington-app miss-islington-app Bot assigned pablogsal Sep 18, 2026
@bedevere-app

bedevere-app Bot commented Sep 18, 2026

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GH-157773 is a backport of this pull request to the 3.15 branch.
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@miss-islington-app

miss-islington-app Bot commented Sep 18, 2026

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Sorry, @ashm-dev and @pablogsal, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 6dad8b88cc39d8f9f41c22502a0b52304b326dd9 3.13
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@bedevere-app bedevere-app Bot removed the needs backport to 3.15 bugs and security fixes label Sep 18, 2026
This was referenced Sep 18, 2026
[3.13] gh-156114: Fix crash in perf trampoline with unencodable code names (GH-156300) #157774
Merged
[3.14] gh-156114: Fix crash in perf trampoline with unencodable code names (GH-156300) #157775
Merged
@bedevere-app

bedevere-app Bot commented Sep 18, 2026

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GH-157774 is a backport of this pull request to the 3.13 branch.
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@bedevere-app

bedevere-app Bot commented Sep 18, 2026

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GH-157775 is a backport of this pull request to the 3.14 branch.
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@bedevere-app bedevere-app Bot removed needs backport to 3.13 only security fixes needs backport to 3.14 bugs and security fixes labels Sep 18, 2026
pablogsal added a commit that referenced this pull request Sep 18, 2026
@pablogsal
[3.13] gh-156114: Fix crash in perf trampoline with unencodable code …
2aed763 
…names (GH-156300) (#157774)
pablogsal added a commit that referenced this pull request Sep 18, 2026
@pablogsal
[3.14] gh-156114: Fix crash in perf trampoline with unencodable code …
d3369c2 
…names (GH-156300) (#157775)
pablogsal pushed a commit that referenced this pull request Sep 18, 2026
@miss-islington
[3.15] gh-156114: Fix crash in perf trampoline with unencodable code …
3af62d9 
…names (GH-156300) (#157773)
@ashm-dev
ashm-dev deleted the gh-156114 branch September 24, 2026 10:57
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@pablogsal pablogsal pablogsal approved these changes

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@ashm-dev @pablogsal
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