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[REPL] fix lock ordering mistake in load_pkg #56215

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merged 1 commit into from
Oct 17, 2024
Merged

[REPL] fix lock ordering mistake in load_pkg #56215

merged 1 commit into from
Oct 17, 2024

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vtjnash
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@vtjnash vtjnash commented Oct 17, 2024

Fixes #56206

Also fix waiting on the package_locks being always a no-op here.

Fixes #56206
@vtjnash vtjnash added REPL Julia's REPL (Read Eval Print Loop) backport 1.11 Change should be backported to release-1.11 labels Oct 17, 2024
Comment on lines +6 to -8
REPLExt = Base.require_stdlib(Pkg_pkgid, "REPLExt")
@lock Base.require_lock begin
REPLExt = Base.require_stdlib(Pkg_pkgid, "REPLExt")
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require_stdlib locks require_lock for the entire function, so why does the lock need to be released between these operations?

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It releases the lock many times internally

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Ah so the additional lock layer prevents those from releasing fully

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Yes. We could do an unlockall/relockall pair like wait does, but it is sort of always a concurrency bug if your application actually relies on that.

@vtjnash vtjnash merged commit 1f935af into master Oct 17, 2024
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@vtjnash vtjnash deleted the jn/56206 branch October 17, 2024 19:50
KristofferC pushed a commit that referenced this pull request Oct 18, 2024
@KristofferC KristofferC mentioned this pull request Oct 18, 2024
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@giordano giordano removed the backport 1.11 Change should be backported to release-1.11 label Oct 19, 2024
KristofferC pushed a commit that referenced this pull request Oct 21, 2024
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Freeze when switching to pkg mode, when Pkg has not been loaded already.
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