Preserve backtraces in fork_daemon and fork_promise_exn #779
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If the fiber fails, record the backtrace when failing the switch. `fork` itself already did this, but `fork_daemon` and `fork_promise_exn` didn't.
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CHANGES: Changes: - Make `fork_action.h` a public header (@patricoferris ocaml-multicore/eio#769, reviewed by @talex5). Allows other libraries to add new actions. - Record trace event when spawning processes (@talex5 ocaml-multicore/eio#749). Spawning a subprocess can take a long time in some cases, so show it clearly in the traces. - Eio_unix.Net: make some return types more polymorphic (@talex5 ocaml-multicore/eio#744). Bug fixes: - Preserve backtraces in `fork_daemon` (@talex5 ocaml-multicore/eio#779). - Eio.Path: always use "/" as separator (@talex5 ocaml-multicore/eio#743). Linux backend: - Allow `alloc_fixed_or_wait` to be cancelled (@talex5 ocaml-multicore/eio#753). - Avoid triggering a (harmless) TSan warning (@talex5 ocaml-multicore/eio#754, reported by @avsm). Windows backend: - Unregister FDs on cancel (@talex5 ocaml-multicore/eio#756). Fixes `exception Unix.Unix_error(Unix.ENOTSOCK, "select", "")`. - Work around problems in `Unix.getaddrinfo` (@talex5 ocaml-multicore/eio#780). Fixes e.g. `No addresses found for host name "127.0.0.1"`. - Group `ECONNABORTED` with other connection reset errors (@talex5 ocaml-multicore/eio#783). - Check `has_symlink` for tests (@create2000 ocaml-multicore/eio#771, reviewed by @patricoferris and @talex5). - Improve `openat` error handling (@talex5 ocaml-multicore/eio#742, reported by @kentookura). Fixes `exception Unix.Unix_error(Unix.ENOENT, "openat", "")`. Documentation: - examples/fs: show how to read files while scanning (@talex5 ocaml-multicore/eio#745). - Add example to `Buf_read.seq` documentation (@talex5 ocaml-multicore/eio#739, requested by @darrenldl and @rizo). Build and test: - Fix tests on OpenBSD (@talex5 ocaml-multicore/eio#782). - Add advice about using AI for code generation (@patricoferris ocaml-multicore/eio#765, reviewed by @avsm and @talex5). - Minor code cleanups (@talex5 ocaml-multicore/eio#755). - Define `struct clone_args` for linux-lts versions that don't have it (@copy ocaml-multicore/eio#741, reviewed by @talex5). - eio_linux: refactor fixed buffer code (@talex5 ocaml-multicore/eio#752).
talex5
added a commit
to talex5/opam-repository
that referenced
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Nov 23, 2024
CHANGES: Changes: - Make `fork_action.h` a public header (@patricoferris ocaml-multicore/eio#769, reviewed by @talex5). Allows other libraries to add new actions. - Record trace event when spawning processes (@talex5 ocaml-multicore/eio#749). Spawning a subprocess can take a long time in some cases, so show it clearly in the traces. - Eio_unix.Net: make some return types more polymorphic (@talex5 ocaml-multicore/eio#744). Bug fixes: - Preserve backtraces in `fork_daemon` (@talex5 ocaml-multicore/eio#779). - Eio.Path: always use "/" as separator (@talex5 ocaml-multicore/eio#743). Linux backend: - Allow `alloc_fixed_or_wait` to be cancelled (@talex5 ocaml-multicore/eio#753). - Avoid triggering a (harmless) TSan warning (@talex5 ocaml-multicore/eio#754, reported by @avsm). Windows backend: - Unregister FDs on cancel (@talex5 ocaml-multicore/eio#756). Fixes `exception Unix.Unix_error(Unix.ENOTSOCK, "select", "")`. - Work around problems in `Unix.getaddrinfo` (@talex5 ocaml-multicore/eio#780). Fixes e.g. `No addresses found for host name "127.0.0.1"`. - Group `ECONNABORTED` with other connection reset errors (@talex5 ocaml-multicore/eio#783). - Check `has_symlink` for tests (@create2000 ocaml-multicore/eio#771, reviewed by @patricoferris and @talex5). - Improve `openat` error handling (@talex5 ocaml-multicore/eio#742, reported by @kentookura). Fixes `exception Unix.Unix_error(Unix.ENOENT, "openat", "")`. Documentation: - examples/fs: show how to read files while scanning (@talex5 ocaml-multicore/eio#745). - Add example to `Buf_read.seq` documentation (@talex5 ocaml-multicore/eio#739, requested by @darrenldl and @rizo). Build and test: - Fix tests on OpenBSD (@talex5 ocaml-multicore/eio#782). - Add advice about using AI for code generation (@patricoferris ocaml-multicore/eio#765, reviewed by @avsm and @talex5). - Minor code cleanups (@talex5 ocaml-multicore/eio#755). - Define `struct clone_args` for linux-lts versions that don't have it (@copy ocaml-multicore/eio#741, reviewed by @talex5). - eio_linux: refactor fixed buffer code (@talex5 ocaml-multicore/eio#752).
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If the fiber fails, record the backtrace when failing the switch.
forkitself already did this, butfork_daemonandfork_promise_exndidn't.This caused unhelpful errors such as: