Skip to content

Conversation

vtjnash
Copy link
Member

@vtjnash vtjnash commented Feb 3, 2025

Restores #57035, undo #57089 for non-FreeBSD. While I suggested doing this change for all platforms, I forgot that means non-FreeBSD platforms become vulnerable again to the very deadlock problems that #57035 was required to prevent. That fix seems to not be viable on FreeBSD due to known libc implementation problems on that platform. However, upon closer inspection of the questionable design implementation decisions they seem to have made here, the platform is likely not currently vulnerable to this libunwind bug in the first place: https://github.com/lattera/freebsd/blob/master/libexec/rtld-elf/rtld_lock.c#L120

Restores #57035, undo #57089 for non-FreeBSD. While I suggested doing
this change for all platforms, I forgot that means non-FreeBSD platforms
become vulnerable again to the very deadlock problems that #57035 was
required to prevent. That fix seems to not be viable on FreeBSD due to
known libc implementation problems on that platform. However, upon
closer inspection of the questionable design implementation decisions
they seem to have made here, the platform is likely not currently
vulnerable to this libunwind bug in the first place:
https://github.com/lattera/freebsd/blob/master/libexec/rtld-elf/rtld_lock.c#L120
@vtjnash vtjnash added backport 1.11 Change should be backported to release-1.11 backport 1.12 Change should be backported to release-1.12 labels Feb 3, 2025
@KristofferC KristofferC mentioned this pull request Feb 4, 2025
32 tasks
@vtjnash vtjnash merged commit 2f0a523 into master Feb 4, 2025
7 of 9 checks passed
@vtjnash vtjnash deleted the jn/restore-57035 branch February 4, 2025 18:39
KristofferC pushed a commit that referenced this pull request Feb 6, 2025
Restores #57035, undo #57089 for non-FreeBSD. While I suggested doing
this change for all platforms, I forgot that means non-FreeBSD platforms
become vulnerable again to the very deadlock problems that #57035 was
required to prevent. That fix seems to not be viable on FreeBSD due to
known libc implementation problems on that platform. However, upon
closer inspection of the questionable design implementation decisions
they seem to have made here, the platform is likely not currently
vulnerable to this libunwind bug in the first place:
https://github.com/lattera/freebsd/blob/master/libexec/rtld-elf/rtld_lock.c#L120

(cherry picked from commit 2f0a523)
KristofferC pushed a commit that referenced this pull request Feb 6, 2025
Restores #57035, undo #57089 for non-FreeBSD. While I suggested doing
this change for all platforms, I forgot that means non-FreeBSD platforms
become vulnerable again to the very deadlock problems that #57035 was
required to prevent. That fix seems to not be viable on FreeBSD due to
known libc implementation problems on that platform. However, upon
closer inspection of the questionable design implementation decisions
they seem to have made here, the platform is likely not currently
vulnerable to this libunwind bug in the first place:
https://github.com/lattera/freebsd/blob/master/libexec/rtld-elf/rtld_lock.c#L120

(cherry picked from commit 2f0a523)
KristofferC added a commit that referenced this pull request Feb 13, 2025
Backported PRs:
- [x] #57142 <!-- Add reference to time_ns in time -->
- [x] #57241 <!-- Handle `waitpid` race condition when `SIGCHLD` is set
to `SIG_IGN` -->
- [x] #57249 <!-- restore non-freebsd-unix fix for profiling -->
- [x] #57211 <!-- Ensure read/readavailable for BufferStream are
threadsafe -->
- [x] #57262 <!-- edit NEWS for v1.12 -->
- [x] #57226 <!-- cfunction: reimplement, as originally planned, for
reliable performance -->
- [x] #57253 <!-- bpart: Fully switch to partitioned semantics -->
- [x] #57273 <!-- fix "Right arrow autocompletes at line end"
implementation -->
- [x] #57280 <!-- dep: Update JuliaSyntax -->
- [x] #57229 <!-- staticdata: Close data race after backedge insertion
-->
- [x] #57298 <!-- Updating binding version to fix MMTk CI -->
- [x] #57248 <!-- improve concurrency safety for `Compiler.finish!` -->
- [x] #57312 <!-- Profile.print: de-focus sleeping frames as gray -->
- [x] #57289 <!-- Make `OncePerX` subtype `Function` -->
- [x] #57310 <!-- Make ptls allocations at least 128 byte aligned -->
- [x] #57311 <!-- Add a warning for auto-import of types -->
- [x] #57338 <!-- fix typo in Float32 random number generation -->
- [x] #57293 <!-- Fix getfield_tfunc when order or boundscheck is Vararg
-->
- [x] #57349 <!-- docs: fix-up world-age handling for META access -->
- [x] #57344 <!-- Add missing type asserts when taking the queue out of
the task struct -->
- [x] #57348 <!-- 🤖 [master] Bump the SparseArrays stdlib from 212981b
to 72c7cac -->
- [x] #55040 <!-- Allow macrocall as function sig -->
- [x] #57299 <!-- Add missing latestworld after parameterized type alias
-->
@KristofferC KristofferC removed the backport 1.12 Change should be backported to release-1.12 label Feb 13, 2025
@KristofferC KristofferC mentioned this pull request Mar 11, 2025
71 tasks
@KristofferC KristofferC mentioned this pull request Apr 25, 2025
71 tasks
@KristofferC KristofferC mentioned this pull request Aug 19, 2025
65 tasks
DilumAluthge added a commit that referenced this pull request Sep 5, 2025
Backported PRs:
- [x] #54840 <!-- Add boundscheck in speccache_eq to avoid OOB access
due to data race -->
- [x] #42080 <!-- recommend explicit `using Foo: Foo, ...` in package
code (was: "using considered harmful") -->
- [x] #58127 <!-- [DOC] Update installation docs: /downloads/ =>
/install/ -->
- [x] #58202 <!-- [release-1.11] malloc: use jl_get_current_task to fix
null check -->
- [x] #58584 <!-- Make `Ptr` values static-show w/ type-information -->
- [x] #58637 <!-- Make late gc lower handle insertelement of alloca use.
-->
- [x] #58837 <!-- fix null comparisons for non-standard address spaces
-->
- [x] #57826 <!-- Add a `similar` method for `Type{<:CodeUnits}` -->
- [x] #58293 <!-- fix trailing indices stackoverflow in reinterpreted
array -->
- [x] #58887 <!-- Pkg: Allow configuring can_fancyprint(io::IO) using
IOContext -->
- [x] #58937 <!-- Fix nthreadpools size in JLOptions -->
- [x] #58978 <!-- Fix precompilepkgs warn loaded setting -->
- [x] #58998 <!-- Bugfix: Use Base.aligned_sizeof instead of sizeof in
Mmap.mmap -->
- [x] #59120 <!-- Fix memory order typo in "src/julia_atomics.h" -->
- [x] #59170 <!-- Clarify and enhance confusing precompile test -->

Need manual backport:
- [ ] #56329 <!-- loading: clean up more concurrency issues -->
- [ ] #56956 <!-- Add "mea culpa" to foreign module assignment error.
-->
- [ ] #57035 <!-- linux: workaround to avoid deadlock inside
dl_iterate_phdr in glibc -->
- [ ] #57089 <!-- Block thread from receiving profile signal with
stackwalk lock -->
- [ ] #57249 <!-- restore non-freebsd-unix fix for profiling -->
- [ ] #58011 <!-- Remove try-finally scope from `@time_imports`
`@trace_compile` `@trace_dispatch` -->
- [ ] #58062 <!-- remove unnecessary edge from `exp_impl` to `pow` -->
- [ ] #58157 <!-- add showing a string to REPL precompile workload -->
- [ ] #58209 <!-- Specialize `one` for the `SizedArray` test helper -->
- [ ] #58108 <!-- Base.get_extension & Dates.format made public -->
- [ ] #58356 <!-- codegen: remove readonly from abstract type calling
convention -->
- [ ] #58415 <!-- [REPL] more reliable extension loading -->
- [ ] #58510 <!-- Don't filter `Core` methods from newly-inferred list
-->
- [ ] #58110 <!-- relax dispatch for the `IteratorSize` method for
`Generator` -->
- [ ] #58965 <!-- Fix `hygienic-scope`s in inner macro expansions -->
- [ ] #58971 <!-- Fix alignment of failed precompile jobs on CI -->
- [ ] #59066 <!-- build: Also pass -fno-strict-aliasing for C++ -->

Contains multiple commits, manual intervention needed:
- [ ] #55877 <!-- fix FileWatching designs and add workaround for a stat
bug on Apple -->
- [ ] #56755 <!-- docs: fix scope type of a `struct` to hard -->
- [ ] #57809 <!-- Fix fptrunc Float64 -> Float16 rounding through
Float32 -->
- [ ] #57398 <!-- Make remaining float intrinsics require float
arguments -->
- [ ] #56351 <!-- Fix `--project=@script` when outside script directory
-->
- [ ] #57129 <!-- clarify that time_ns is monotonic -->
- [ ] #58134 <!-- Note annotated string API is experimental in Julia
1.11 in HISTORY.md -->
- [ ] #58401 <!-- check that hashing of types does not foreigncall
(`jl_type_hash` is concrete evaluated) -->
- [ ] #58435 <!-- Fix layout flags for types that have oddly sized
primitive type fields -->
- [ ] #58483 <!-- Fix tbaa usage when storing into heap allocated
immutable structs -->
- [ ] #58512 <!-- Make more types jl_static_show readably -->
- [ ] #58012 <!-- Re-enable tab completion of kwargs for large method
tables -->
- [ ] #58683 <!-- Add 0 predecessor to entry basic block and handle it
in inlining -->
- [ ] #59112 <!-- Add builtin function name to add methods error -->

Non-merged PRs with backport label:
- [ ] #59329 <!-- aotcompile: destroy LLVM context after serializing
combined module -->
- [ ] #58848 <!-- Set array size only when safe to do so -->
- [ ] #58535 <!-- gf.c: include const-return methods in
`--trace-compile` -->
- [ ] #58038 <!-- strings/cstring: `transcode`: prevent Windows sysimage
invalidation -->
- [ ] #57604 <!-- `@nospecialize` for `string_index_err` -->
- [ ] #57366 <!-- Use ptrdiff_t sized offsets for gvars_offsets to allow
large sysimages -->
- [ ] #56890 <!-- Enable getting non-boxed LLVM type from Julia Type -->
- [ ] #56823 <!-- Make version of opaque closure constructor in world
-->
- [ ] #55958 <!-- also redirect JL_STDERR etc. when redirecting to
devnull -->
- [ ] #55956 <!-- Make threadcall gc safe -->
- [ ] #55534 <!-- Set stdlib sources as read-only during installation
-->
- [ ] #55499 <!-- propagate the terminal's `displaysize` to the
`IOContext` used by the REPL -->
- [ ] #55458 <!-- Allow for generically extracting unannotated string
-->
- [ ] #55457 <!-- Make AnnotateChar equality consider annotations -->
- [ ] #55220 <!-- `isfile_casesensitive` fixes on Windows -->
- [ ] #53957 <!-- tweak how filtering is done for what packages should
be precompiled -->
- [ ] #51479 <!-- prevent code loading from lookin in the versioned
environment when building Julia -->
- [ ] #50813 <!-- More doctests for Sockets and capitalization fix -->
- [ ] #50157 <!-- improve docs for `@inbounds` and
`Base.@propagate_inbounds` -->

---------

Co-authored-by: Kiran Pamnany <[email protected]>
Co-authored-by: adienes <[email protected]>
Co-authored-by: Gabriel Baraldi <[email protected]>
Co-authored-by: Keno Fischer <[email protected]>
Co-authored-by: Simeon David Schaub <[email protected]>
Co-authored-by: Jameson Nash <[email protected]>
Co-authored-by: Alex Arslan <[email protected]>
Co-authored-by: Fons van der Plas <[email protected]>
Co-authored-by: Ian Butterworth <[email protected]>
Co-authored-by: JonasIsensee <[email protected]>
Co-authored-by: Curtis Vogt <[email protected]>
Co-authored-by: Dilum Aluthge <[email protected]>
Co-authored-by: DilumAluthgeBot <[email protected]>
Co-authored-by: DilumAluthge <[email protected]>
@DilumAluthge DilumAluthge mentioned this pull request Sep 9, 2025
65 tasks
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
backport 1.11 Change should be backported to release-1.11
Projects
None yet
Development

Successfully merging this pull request may close these issues.

2 participants