[REPL] fix lock ordering mistake in load_pkg #56215
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Also fix waiting on the package_locks being always a no-op here. Fixes #56206
vtjnash
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| 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.
IanButterworth
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Oct 17, 2024
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Backported PRs: - [x] #55886 <!-- irrationals: restrict assume effects annotations to known types --> - [x] #55867 <!-- update `hash` doc string: `widen` not required any more --> - [x] #56084 <!-- slightly improve inference in precompilation code --> - [x] #56088 <!-- make `Base.ANSIIterator` have a concrete field --> - [x] #54093 <!-- Fix `JULIA_CPU_TARGET` being propagated to workers precompiling stdlib pkgimages --> - [x] #56165 <!-- Fix markdown list in installation.md --> - [x] #56148 <!-- Make loading work when stdlib deps are missing in the manifest --> - [x] #56174 <!-- Fix implicit `convert(String, ...)` in several places --> - [x] #56159 <!-- Add invalidation barriers for `displaysize` and `implicit_typeinfo` --> - [x] #56089 <!-- Call `MulAddMul` instead of multiplication in _generic_matmatmul! --> - [x] #56195 <!-- Include default user depot when JULIA_DEPOT_PATH has leading empty entry --> - [x] #56215 <!-- [REPL] fix lock ordering mistake in load_pkg --> - [x] #56251 <!-- REPL: run repl hint generation for modeswitch chars when not switching --> - [x] #56092 <!-- stream: fix reading LibuvStream into array --> - [x] #55870 <!-- fix infinite recursion in `promote_type` for `Irrational` --> - [x] #56227 <!-- Do not call `rand` during sysimage precompilation --> - [x] #55741 <!-- Change annotations to use a NamedTuple --> - [x] #56149 <!-- Specialize adding/subtracting mixed Upper/LowerTriangular --> - [x] #56214 <!-- fix precompile process flags --> - [x] #54471 - [x] #55622 - [x] #55704 - [x] #55764
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Fixes #56206