Maintaining Perl 5 Core (Dave Mitchell): April 2026
Mon, 18-May-2026 by
alh
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Dave writes:
Last month I continued looking into race conditions in threads and
threads::shared. I have now reached the point where the threads-related
test suite can run cleanly under `valgrind --tool=helgrind`. But there
is still an occasional crash in blocks.t when run repeatedly for many
hours in parallel on 20 terminals, which I am currently working on. I'm
hopeful that once that is fixed, the branch will be ready to push.
Summary:
* 33:35 GH #24258 dist/threads/t/free.t: Rare test failure in debugging build on FreeBSD
Total:
* 33:35 (HH:MM)
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Comments (2)
Thank you.
It's interesting how difficult intermittent bugs can be to track down, especially when they only appear after hours of repeated testing. Getting the thread-related tests to run cleanly under Helgrind sounds like meaningful progress. Thanks for sharing the update and for the continued work on Perl.
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