gh-154701: prevent executor self-links in JIT cold exits - #155323
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Awesome, thanks so much!
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Thanks. I can confirm that it fixes my issue with |
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Aug 14, 2026
…nGH-155323) * prevent executor self-links in JIT cold exits * 📜🤖 Added by blurb_it. * fix windows ci --------- Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
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Refer: #149570 and #154701
cpython/Python/optimizer_bytecodes.c
Lines 1468 to 1471 in e469fa9
After the
FOR_ITERguard fails, the side exit targets the same bytecode location where the current executor is installed._COLD_EXITthen links that exit back to the current executor itself, creating a self-loop that can never make forward progress.Detach the self-linked executor and restore the original bytecode before falling back to Tier 1 can solve this issue.