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[3.13] gh-117657: Log TSAN warnings to separate files and archive them (GH-118747) #118931

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Merged
colesbury merged 1 commit into from
May 10, 2024
Merged

[3.13] gh-117657: Log TSAN warnings to separate files and archive them (GH-118747) #118931

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gh-117657: Log TSAN warnings to separate files and archive them (GH-1… 
…18747)

This ensures we don't lose races that occur in subprocesses or
interleave races from workers running in parallel.

Log files are collected and packaged into a zipfile that can be
downloaded from the "Artifacts" section of the workflow run.
(cherry picked from commit b88889e)

Co-authored-by: mpage <mpage@meta.com>
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@mpage @miss-islington
mpage authored and miss-islington committed May 10, 2024
commit 90c973d3269437aac88677d5311720623712e5a2
2 changes: 2 additions & 0 deletions .github/workflows/build.yml
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Expand Up @@ -486,6 +486,7 @@ jobs:
config_hash: ${{ needs.check_source.outputs.config_hash }}
options: ./configure --config-cache --with-thread-sanitizer --with-pydebug
suppressions_path: Tools/tsan/supressions.txt
tsan_logs_artifact_name: tsan-logs-default

build_tsan_free_threading:
name: 'Thread sanitizer (free-threading)'
Expand All @@ -496,6 +497,7 @@ jobs:
config_hash: ${{ needs.check_source.outputs.config_hash }}
options: ./configure --config-cache --disable-gil --with-thread-sanitizer --with-pydebug
suppressions_path: Tools/tsan/suppressions_free_threading.txt
tsan_logs_artifact_name: tsan-logs-free-threading

# CIFuzz job based on https://google.github.io/oss-fuzz/getting-started/continuous-integration/
cifuzz:
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16 changes: 15 additions & 1 deletion .github/workflows/reusable-tsan.yml
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Expand Up @@ -11,6 +11,10 @@ on:
description: 'A repo relative path to the suppressions file'
required: true
type: string
tsan_logs_artifact_name:
description: 'Name of the TSAN logs artifact. Must be unique for each job.'
required: true
type: string

jobs:
build_tsan_reusable:
Expand Down Expand Up @@ -41,7 +45,7 @@ jobs:
sudo sysctl -w vm.mmap_rnd_bits=28
- name: TSAN Option Setup
run: |
echo "TSAN_OPTIONS=suppressions=${GITHUB_WORKSPACE}/${{ inputs.suppressions_path }}" >> $GITHUB_ENV
echo "TSAN_OPTIONS=log_path=${GITHUB_WORKSPACE}/tsan_log suppressions=${GITHUB_WORKSPACE}/${{ inputs.suppressions_path }} handle_segv=0" >> $GITHUB_ENV
echo "CC=clang" >> $GITHUB_ENV
echo "CXX=clang++" >> $GITHUB_ENV
- name: Add ccache to PATH
Expand All @@ -60,3 +64,13 @@ jobs:
run: make pythoninfo
- name: Tests
run: ./python -m test --tsan -j4
- name: Display TSAN logs
if: always()
run: find ${GITHUB_WORKSPACE} -name 'tsan_log.*' | xargs head -n 1000
- name: Archive TSAN logs
if: always()
uses: actions/upload-artifact@v4
with:
name: ${{ inputs.tsan_logs_artifact_name }}
path: tsan_log.*
if-no-files-found: ignore
3 changes: 3 additions & 0 deletions Tools/tsan/supressions.txt
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Expand Up @@ -2,3 +2,6 @@
# reference: https://github.com/google/sanitizers/wiki/ThreadSanitizerSuppressions
race:get_allocator_unlocked
race:set_allocator_unlocked

# https://gist.github.com/mpage/daaf32b39180c1989572957b943eb665
thread:pthread_create