gh-151029: Fix sys.remote_exec() unable to find writable memory when libpython replaced on disk#151032
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Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
…er libpython removal
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needs backport to 3.14
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LGTM. I reiewed it a couple of times and couldn't find anything. Tested also locally. I pushed a small follow-up that factors the duplicated deleted-mapping remote-exec test flow into a shared helper.
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Thanks @ambv for the PR, and @pablogsal for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14, 3.15. |
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Sorry, @ambv and @pablogsal, I could not cleanly backport this to |
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GH-152443 is a backport of this pull request to the 3.15 branch. |
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GH-152464 is a backport of this pull request to the 3.14 branch. |
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In the case where
/proc/<pid>/mapspoints at a libpython that got deleted from disk or replaced with a new file,sys.remote_exec()used to fail to find the remote memory address to write the debug script path to.This change makes it able to recover and read this information from the remote process' memory. See issue for rationale and details.