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@talex5 talex5 commented Dec 1, 2023

If given an empty address, it would corrupt memory. This resulted in the tests hanging sometimes, spinning in caml_do_local_roots.

See ocaml/ocaml#12796.

This was a little hard to track down, as attempting to attach to the hung process resulted in:

A fatal error internal to GDB has been detected, further
debugging is not possible.  GDB will now terminate.

If given an empty address, it would corrupt memory.
This resulted in the tests hanging sometimes, spinning in
`caml_do_local_roots`.

See ocaml/ocaml#12796.
@talex5 talex5 added the bug Something isn't working label Dec 1, 2023
@talex5 talex5 merged commit 211279e into ocaml-multicore:main Dec 3, 2023
@talex5 talex5 deleted the fix-gc-hang branch December 3, 2023 11:45
talex5 added a commit to talex5/opam-repository that referenced this pull request Jan 17, 2024
CHANGES:

New features / API changes:

- Add `Eio.Executor_pool` (@SGrondin ocaml-multicore/eio#639, reviewed by @talex5).
  Provides an easy way to distribute jobs across domains.

- Add `Fiber.first ~combine` and `Fiber.n_any` (@SGrondin @talex5 ocaml-multicore/eio#587).
  Allows keeping both results in the case where multiple fibers succeed.

- Add `Eio_mock.Backend.run_full` with auto-advancing mock clock (@talex5 ocaml-multicore/eio#644, reviewed by @SGrondin).
  Simplifies testing of code using clocks.

- Add `Buf_write.printf` (@SGrondin @talex5 ocaml-multicore/eio#655).

- Add `Net.listening_addr` (@mefyl ocaml-multicore/eio#555, reviewed by @patricoferris @talex5).
  Useful to get the socket's address if the OS assigns it.

- Add `Promise.try_resolve` (@talex5 ocaml-multicore/eio#646).

- Remove `Cancel_hook_failed` exception (@talex5 ocaml-multicore/eio#640).
  Didn't seem to be used and broke dscheck.

Tracing:

- Improve tracing (@TheLortex @patricoferris @talex5 ocaml-multicore/eio#656).
  Trace cancellation contexts and OS operations, and simplify API.

- Add labels to switches (@talex5 ocaml-multicore/eio#661, reviewed by @SGrondin).

- `Fiber.all`: use the parent fiber (@talex5 ocaml-multicore/eio#665, reviewed by @SGrondin).
  Cleans up the traces a bit.

Performance:

- Faster and simpler `Lf_queue` (@talex5 ocaml-multicore/eio#647, based on work by @polytypic).

- Optimise `Flow.copy` with `Buf_read.as_flow` (@talex5 ocaml-multicore/eio#663, reviewed by @SGrondin, reported by @leostera).

Bug fixes:

- Fix handling of very long IO vectors (@talex5 ocaml-multicore/eio#653, reported by @Cjen1).

- eio_posix: use `caml_enter_blocking_section` in more places (@talex5 ocaml-multicore/eio#654, reviewed by @SGrondin).

- eio_posix: work around `caml_unix_alloc_sockaddr` bug (@talex5 ocaml-multicore/eio#651).

- Remove default backtrace from `Switch.fail` (@talex5 ocaml-multicore/eio#664).

Documentation:

- Organise eio.mli better (@talex5 ocaml-multicore/eio#667).

- Fix quoting of quotes in process error messages (@talex5 ocaml-multicore/eio#666, reviewed by @SGrondin).

- Mention Path module in File and Fs documentation (@talex5 ocaml-multicore/eio#659, requested by @clecat).

- Minor documentation updates (@SGrondin @talex5 ocaml-multicore/eio#670).

Build / internals:

- Allow closing synchronous streams (@talex5 ocaml-multicore/eio#641, reviewed by @SGrondin).
  This isn't currently exposed in the public interface.

- Fix non-idempotent tests (@SGrondin ocaml-multicore/eio#662).

- eio_windows: add explicit fmt dependency (@talex5 ocaml-multicore/eio#643).
talex5 added a commit to talex5/opam-repository that referenced this pull request Jan 17, 2024
CHANGES:

New features / API changes:

- Add `Eio.Executor_pool` (@SGrondin ocaml-multicore/eio#639, reviewed by @talex5).
  Provides an easy way to distribute jobs across domains.

- Add `Fiber.first ~combine` and `Fiber.n_any` (@SGrondin @talex5 ocaml-multicore/eio#587).
  Allows keeping both results in the case where multiple fibers succeed.

- Add `Eio_mock.Backend.run_full` with auto-advancing mock clock (@talex5 ocaml-multicore/eio#644, reviewed by @SGrondin).
  Simplifies testing of code using clocks.

- Add `Buf_write.printf` (@SGrondin @talex5 ocaml-multicore/eio#655).

- Add `Net.listening_addr` (@mefyl ocaml-multicore/eio#555, reviewed by @patricoferris @talex5).
  Useful to get the socket's address if the OS assigns it.

- Add `Promise.try_resolve` (@talex5 ocaml-multicore/eio#646).

- Remove `Cancel_hook_failed` exception (@talex5 ocaml-multicore/eio#640).
  Didn't seem to be used and broke dscheck.

Tracing:

- Improve tracing (@TheLortex @patricoferris @talex5 ocaml-multicore/eio#656).
  Trace cancellation contexts and OS operations, and simplify API.

- Add labels to switches (@talex5 ocaml-multicore/eio#661, reviewed by @SGrondin).

- `Fiber.all`: use the parent fiber (@talex5 ocaml-multicore/eio#665, reviewed by @SGrondin).
  Cleans up the traces a bit.

Performance:

- Faster and simpler `Lf_queue` (@talex5 ocaml-multicore/eio#647, based on work by @polytypic).

- Optimise `Flow.copy` with `Buf_read.as_flow` (@talex5 ocaml-multicore/eio#663, reviewed by @SGrondin, reported by @leostera).

Bug fixes:

- Fix handling of very long IO vectors (@talex5 ocaml-multicore/eio#653, reported by @Cjen1).

- eio_posix: use `caml_enter_blocking_section` in more places (@talex5 ocaml-multicore/eio#654, reviewed by @SGrondin).

- eio_posix: work around `caml_unix_alloc_sockaddr` bug (@talex5 ocaml-multicore/eio#651).

- Remove default backtrace from `Switch.fail` (@talex5 ocaml-multicore/eio#664).

Documentation:

- Organise eio.mli better (@talex5 ocaml-multicore/eio#667).

- Fix quoting of quotes in process error messages (@talex5 ocaml-multicore/eio#666, reviewed by @SGrondin).

- Mention Path module in File and Fs documentation (@talex5 ocaml-multicore/eio#659, requested by @clecat).

- Minor documentation updates (@SGrondin @talex5 ocaml-multicore/eio#670).

Build / internals:

- Allow closing synchronous streams (@talex5 ocaml-multicore/eio#641, reviewed by @SGrondin).
  This isn't currently exposed in the public interface.

- Fix non-idempotent tests (@SGrondin ocaml-multicore/eio#662).

- eio_windows: add explicit fmt dependency (@talex5 ocaml-multicore/eio#643).
nberth pushed a commit to nberth/opam-repository that referenced this pull request Jun 18, 2024
CHANGES:

New features / API changes:

- Add `Eio.Executor_pool` (@SGrondin ocaml-multicore/eio#639, reviewed by @talex5).
  Provides an easy way to distribute jobs across domains.

- Add `Fiber.first ~combine` and `Fiber.n_any` (@SGrondin @talex5 ocaml-multicore/eio#587).
  Allows keeping both results in the case where multiple fibers succeed.

- Add `Eio_mock.Backend.run_full` with auto-advancing mock clock (@talex5 ocaml-multicore/eio#644, reviewed by @SGrondin).
  Simplifies testing of code using clocks.

- Add `Buf_write.printf` (@SGrondin @talex5 ocaml-multicore/eio#655).

- Add `Net.listening_addr` (@mefyl ocaml-multicore/eio#555, reviewed by @patricoferris @talex5).
  Useful to get the socket's address if the OS assigns it.

- Add `Promise.try_resolve` (@talex5 ocaml-multicore/eio#646).

- Remove `Cancel_hook_failed` exception (@talex5 ocaml-multicore/eio#640).
  Didn't seem to be used and broke dscheck.

Tracing:

- Improve tracing (@TheLortex @patricoferris @talex5 ocaml-multicore/eio#656).
  Trace cancellation contexts and OS operations, and simplify API.

- Add labels to switches (@talex5 ocaml-multicore/eio#661, reviewed by @SGrondin).

- `Fiber.all`: use the parent fiber (@talex5 ocaml-multicore/eio#665, reviewed by @SGrondin).
  Cleans up the traces a bit.

Performance:

- Faster and simpler `Lf_queue` (@talex5 ocaml-multicore/eio#647, based on work by @polytypic).

- Optimise `Flow.copy` with `Buf_read.as_flow` (@talex5 ocaml-multicore/eio#663, reviewed by @SGrondin, reported by @leostera).

Bug fixes:

- Fix handling of very long IO vectors (@talex5 ocaml-multicore/eio#653, reported by @Cjen1).

- eio_posix: use `caml_enter_blocking_section` in more places (@talex5 ocaml-multicore/eio#654, reviewed by @SGrondin).

- eio_posix: work around `caml_unix_alloc_sockaddr` bug (@talex5 ocaml-multicore/eio#651).

- Remove default backtrace from `Switch.fail` (@talex5 ocaml-multicore/eio#664).

Documentation:

- Organise eio.mli better (@talex5 ocaml-multicore/eio#667).

- Fix quoting of quotes in process error messages (@talex5 ocaml-multicore/eio#666, reviewed by @SGrondin).

- Mention Path module in File and Fs documentation (@talex5 ocaml-multicore/eio#659, requested by @clecat).

- Minor documentation updates (@SGrondin @talex5 ocaml-multicore/eio#670).

Build / internals:

- Allow closing synchronous streams (@talex5 ocaml-multicore/eio#641, reviewed by @SGrondin).
  This isn't currently exposed in the public interface.

- Fix non-idempotent tests (@SGrondin ocaml-multicore/eio#662).

- eio_windows: add explicit fmt dependency (@talex5 ocaml-multicore/eio#643).
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