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worker: fix crash when a worker joins after exit #56191
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #56191 +/- ##
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+ Coverage 87.99% 88.49% +0.50%
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Files 656 656
Lines 189103 189262 +159
Branches 35997 36349 +352
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+ Hits 166402 167494 +1092
+ Misses 15859 14976 -883
+ Partials 6842 6792 -50
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Yeah, I don't think this is the right fix here ... according to the stack trace in #56020, this crash occurs while the parent thread is still running its event loop, so I'm not sure why the |
If a worker has not already joined before running to completion it will join in a SetImmediateThreadsafe which could occur after the worker has already ended by other means. Mutating a JS object at that point would fail because the isolate is already disposed.
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lgtm
@addaleax It's happening while the parent thread is alive, but it's the child thread that it's happening to because it's scheduling the SetImmediateThreadSafe from the StartThread of the worker after the Run completes. The worker completes its Run before main exits, schedules an immediate, and then seemingly is having its exit trigger before the immediate which results in the worker already having disposed its isolate by the time it reaches that immediate which attempts to join the thread. |
@Qard Yeah, but the thing here is that the scheduled immediate runs on the parent thread, and it's accessing the parent Isolate, not the worker Isolate, so that should be fine? Anyway, the current fix here does look good to me (Oh, and: It looks like the Isolate here is terminating, i.e. |
I don't know. Just going by the logs that said "isolate disposed" in it. 🤷 |
Landed in 586814b |
If a worker has not already joined before running to completion it will join in a SetImmediateThreadsafe which could occur after the worker has already ended by other means. Mutating a JS object at that point would fail because the isolate is already disposed. PR-URL: #56191 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
If a worker has not already joined before running to completion it will join in a SetImmediateThreadsafe which could occur after the worker has already ended by other means. Mutating a JS object at that point would fail because the isolate is already disposed. PR-URL: #56191 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [node](https://nodejs.org) ([source](https://github.com/nodejs/node)) | minor | `23.4.0` -> `23.5.0` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>nodejs/node (node)</summary> ### [`v23.5.0`](https://github.com/nodejs/node/releases/tag/v23.5.0): 2024-12-19, Version 23.5.0 (Current), @​aduh95 [Compare Source](nodejs/node@v23.4.0...v23.5.0) ##### Notable Changes ##### WebCryptoAPI [`Ed25519`](nodejs/node@Ed25519) and X25519 algorithms are now stable Following the merge of Curve25519 into the [Web Cryptography API Editor's Draft](https://w3c.github.io/webcrypto/) the `Ed25519` and `X25519` algorithm identifiers are now stable and will no longer emit an ExperimentalWarning upon use. Contributed by Filip Skokan in [#​56142](nodejs/node#56142). ##### On-thread hooks are back This release introduces `module.registerHooks()` for registering module loader customization hooks that are run for all modules loaded by `require()`, `import` and functions returned by `createRequire()` in the same thread, which makes them easier for CJS monkey-patchers to migrate to. ```mjs import assert from 'node:assert'; import { registerHooks, createRequire } from 'node:module'; import { writeFileSync } from 'node:fs'; writeFileSync('./bar.js', 'export const id = 123;', 'utf8'); registerHooks({ resolve(specifier, context, nextResolve) { const replaced = specifier.replace('foo', 'bar'); return nextResolve(replaced, context); }, load(url, context, nextLoad) { const result = nextLoad(url, context); return { ...result, source: result.source.toString().replace('123', '456'), }; }, }); // Checks that it works with require. const require = createRequire(import.meta.url); const required = require('./foo.js'); // Redirected by resolve hook to bar.js assert.strictEqual(required.id, 456); // Replaced by load hook to 456 // Checks that it works with import. const imported = await import('./foo.js'); // Redirected by resolve hook to bar.js assert.strictEqual(imported.id, 456); // Replaced by load hook to 456 ``` This complements the `module.register()` hooks - the new hooks fit better internally and cover all corners in the module graph; whereas `module.register()` previously could not cover `require()` while it was on-thread, and still cannot cover `createRequire()` after being moved off-thread. They are also run in the same thread as the modules being loaded and where the hooks are registered, which means they are easier to debug (no more `console.log()` getting lost) and do not have the many deadlock issues haunting the `module.register()` hooks. The new API also takes functions directly so that it's easier for intermediate loader packages to take user options from files that the hooks can't be aware of, like many existing CJS monkey-patchers do. Contributed by Joyee Cheung in [#​55698](nodejs/node#55698). ##### Other notable changes - \[[`59cae91465`](nodejs/node@59cae91465)] - **(SEMVER-MINOR)** **dgram**: support blocklist in udp (theanarkh) [#​56087](nodejs/node#56087) - \[[`72f79b44ed`](nodejs/node@72f79b44ed)] - **doc**: stabilize util.styleText (Rafael Gonzaga) [#​56265](nodejs/node#56265) - \[[`b5a2c0777d`](nodejs/node@b5a2c0777d)] - **(SEMVER-MINOR)** **module**: add prefix-only modules to `module.builtinModules` (Jordan Harband) [#​56185](nodejs/node#56185) - \[[`9863d27566`](nodejs/node@9863d27566)] - **(SEMVER-MINOR)** **module**: only emit require(esm) warning under --trace-require-module (Joyee Cheung) [#​56194](nodejs/node#56194) - \[[`8e780bc5ae`](nodejs/node@8e780bc5ae)] - **(SEMVER-MINOR)** **module**: use synchronous hooks for preparsing in import(cjs) (Joyee Cheung) [#​55698](nodejs/node#55698) - \[[`65bc8e847f`](nodejs/node@65bc8e847f)] - **(SEMVER-MINOR)** **report**: fix typos in report keys and bump the version (Yuan-Ming Hsu) [#​56068](nodejs/node#56068) - \[[`0ab36e1937`](nodejs/node@0ab36e1937)] - **(SEMVER-MINOR)** **sqlite**: aggregate constants in a single property (Edigleysson Silva (Edy)) [#​56213](nodejs/node#56213) - \[[`efcc5d90c5`](nodejs/node@efcc5d90c5)] - **(SEMVER-MINOR)** **src,lib**: stabilize permission model (Rafael Gonzaga) [#​56201](nodejs/node#56201) ##### Commits - \[[`2314e4916e`](nodejs/node@2314e4916e)] - **assert**: make Maps be partially compared in partialDeepStrictEqual (Giovanni Bucci) [#​56195](nodejs/node#56195) - \[[`cfbdff7b45`](nodejs/node@cfbdff7b45)] - **assert**: make partialDeepStrictEqual work with ArrayBuffers (Giovanni Bucci) [#​56098](nodejs/node#56098) - \[[`f264dd6d20`](nodejs/node@f264dd6d20)] - **buffer**: document concat zero-fill (Duncan) [#​55562](nodejs/node#55562) - \[[`4831b87d83`](nodejs/node@4831b87d83)] - **build**: set DESTCPU correctly for 'make binary' on loongarch64 (吴小白) [#​56271](nodejs/node#56271) - \[[`1497bb405e`](nodejs/node@1497bb405e)] - **build**: fix missing fp16 dependency in d8 builds (Joyee Cheung) [#​56266](nodejs/node#56266) - \[[`445c8c7489`](nodejs/node@445c8c7489)] - **build**: add major release action (Rafael Gonzaga) [#​56199](nodejs/node#56199) - \[[`f4faedfa69`](nodejs/node@f4faedfa69)] - **build**: fix C string encoding for `PRODUCT_DIR_ABS` (Anna Henningsen) [#​56111](nodejs/node#56111) - \[[`6f49c8006c`](nodejs/node@6f49c8006c)] - **build**: use variable for simdutf path (Shelley Vohr) [#​56196](nodejs/node#56196) - \[[`fcaa2c82a6`](nodejs/node@fcaa2c82a6)] - **build**: fix GN build on macOS (Joyee Cheung) [#​56141](nodejs/node#56141) - \[[`08e5309f4f`](nodejs/node@08e5309f4f)] - ***Revert*** "**build**: avoid compiling with VS v17.12" (Gerhard Stöbich) [#​56151](nodejs/node#56151) - \[[`c2fb38cfdf`](nodejs/node@c2fb38cfdf)] - **crypto**: graduate WebCryptoAPI [`Ed25519`](nodejs/node@Ed25519) and X25519 algorithms as stable (Filip Skokan) [#​56142](nodejs/node#56142) - \[[`8658833884`](nodejs/node@8658833884)] - **deps**: update nghttp3 to 1.6.0 (Node.js GitHub Bot) [#​56258](nodejs/node#56258) - \[[`7c941d4610`](nodejs/node@7c941d4610)] - **deps**: update simdutf to 5.6.4 (Node.js GitHub Bot) [#​56255](nodejs/node#56255) - \[[`4e9113eada`](nodejs/node@4e9113eada)] - **deps**: update libuv to 1.49.2 (Luigi Pinca) [#​56224](nodejs/node#56224) - \[[`db6aba12e4`](nodejs/node@db6aba12e4)] - **deps**: update c-ares to v1.34.4 (Node.js GitHub Bot) [#​56256](nodejs/node#56256) - \[[`25bb462bc2`](nodejs/node@25bb462bc2)] - **deps**: define V8\_PRESERVE_MOST as no-op on Windows (Stefan Stojanovic) [#​56238](nodejs/node#56238) - \[[`54308c51bb`](nodejs/node@54308c51bb)] - **deps**: update sqlite to 3.47.2 (Node.js GitHub Bot) [#​56178](nodejs/node#56178) - \[[`59cae91465`](nodejs/node@59cae91465)] - **(SEMVER-MINOR)** **dgram**: support blocklist in udp (theanarkh) [#​56087](nodejs/node#56087) - \[[`52c18e605e`](nodejs/node@52c18e605e)] - **doc**: fix color contrast issue in light mode (Rich Trott) [#​56272](nodejs/node#56272) - \[[`72f79b44ed`](nodejs/node@72f79b44ed)] - **doc**: stabilize util.styleText (Rafael Gonzaga) [#​56265](nodejs/node#56265) - \[[`0d08756d0c`](nodejs/node@0d08756d0c)] - **doc**: clarify util.aborted resource usage (Kunal Kumar) [#​55780](nodejs/node#55780) - \[[`f94f21080b`](nodejs/node@f94f21080b)] - **doc**: add esm examples to node:repl (Alfredo González) [#​55432](nodejs/node#55432) - \[[`7a10ef88d9`](nodejs/node@7a10ef88d9)] - **doc**: add esm examples to node:readline (Alfredo González) [#​55335](nodejs/node#55335) - \[[`cc7a7c391b`](nodejs/node@cc7a7c391b)] - **doc**: fix 'which' to 'that' and add commas (Selveter Senitro) [#​56216](nodejs/node#56216) - \[[`c5b086250e`](nodejs/node@c5b086250e)] - **doc**: fix winget config path (Alex Yang) [#​56233](nodejs/node#56233) - \[[`71c38a24d4`](nodejs/node@71c38a24d4)] - **doc**: add esm examples to node:tls (Alfredo González) [#​56229](nodejs/node#56229) - \[[`394fffbbde`](nodejs/node@394fffbbde)] - **doc**: add esm examples to node:perf_hooks (Alfredo González) [#​55257](nodejs/node#55257) - \[[`7b2a6ee61e`](nodejs/node@7b2a6ee61e)] - **doc**: `sea.getRawAsset(key)` always returns an ArrayBuffer (沈鸿飞) [#​56206](nodejs/node#56206) - \[[`8092dcf27e`](nodejs/node@8092dcf27e)] - **doc**: update announce documentation for releases (Rafael Gonzaga) [#​56200](nodejs/node#56200) - \[[`2974667815`](nodejs/node@2974667815)] - **doc**: update blog link to /vulnerability (Rafael Gonzaga) [#​56198](nodejs/node#56198) - \[[`f3b3ff85e0`](nodejs/node@f3b3ff85e0)] - **doc**: call out import.meta is only supported in ES modules (Anton Kastritskii) [#​56186](nodejs/node#56186) - \[[`a9e67280e7`](nodejs/node@a9e67280e7)] - **doc**: add ambassador message - benefits of Node.js (Michael Dawson) [#​56085](nodejs/node#56085) - \[[`e4922ab15f`](nodejs/node@e4922ab15f)] - **doc**: fix incorrect link to style guide (Yuan-Ming Hsu) [#​56181](nodejs/node#56181) - \[[`114a3e5a05`](nodejs/node@114a3e5a05)] - **doc**: fix c++ addon hello world sample (Edigleysson Silva (Edy)) [#​56172](nodejs/node#56172) - \[[`f1c2d2f65e`](nodejs/node@f1c2d2f65e)] - **doc**: update blog release-post link (Ruy Adorno) [#​56123](nodejs/node#56123) - \[[`d48b5224c0`](nodejs/node@d48b5224c0)] - **doc**: fix module.md headings (Chengzhong Wu) [#​56131](nodejs/node#56131) - \[[`4cc0493a0b`](nodejs/node@4cc0493a0b)] - **fs**: make mutating `options` in Callback `readdir()` not affect results (LiviaMedeiros) [#​56057](nodejs/node#56057) - \[[`8d485f1c09`](nodejs/node@8d485f1c09)] - **fs**: make mutating `options` in Promises `readdir()` not affect results (LiviaMedeiros) [#​56057](nodejs/node#56057) - \[[`595851b5ed`](nodejs/node@595851b5ed)] - **fs,win**: fix readdir for named pipe (Hüseyin Açacak) [#​56110](nodejs/node#56110) - \[[`075b36b7b4`](nodejs/node@075b36b7b4)] - **http**: add setDefaultHeaders option to http.request (Tim Perry) [#​56112](nodejs/node#56112) - \[[`febd969c46`](nodejs/node@febd969c46)] - **http2**: remove duplicate codeblock (Vitaly Aminev) [#​55915](nodejs/node#55915) - \[[`b0ebd23e52`](nodejs/node@b0ebd23e52)] - **http2**: support ALPNCallback option (ZYSzys) [#​56187](nodejs/node#56187) - \[[`f10239fde7`](nodejs/node@f10239fde7)] - **lib**: remove redundant global regexps (Gürgün Dayıoğlu) [#​56182](nodejs/node#56182) - \[[`fd55d3cbdd`](nodejs/node@fd55d3cbdd)] - **lib**: clean up persisted signals when they are settled (Edigleysson Silva (Edy)) [#​56001](nodejs/node#56001) - \[[`889094fdbc`](nodejs/node@889094fdbc)] - **lib**: handle Float16Array in node:v8 serdes (Bartek Iwańczuk) [#​55996](nodejs/node#55996) - \[[`5aec513207`](nodejs/node@5aec513207)] - **lib**: disable default memory leak warning for AbortSignal (Lenz Weber-Tronic) [#​55816](nodejs/node#55816) - \[[`b5a2c0777d`](nodejs/node@b5a2c0777d)] - **(SEMVER-MINOR)** **module**: add prefix-only modules to `module.builtinModules` (Jordan Harband) [#​56185](nodejs/node#56185) - \[[`9863d27566`](nodejs/node@9863d27566)] - **(SEMVER-MINOR)** **module**: only emit require(esm) warning under --trace-require-module (Joyee Cheung) [#​56194](nodejs/node#56194) - \[[`5665e86da6`](nodejs/node@5665e86da6)] - **module**: prevent main thread exiting before esm worker ends (Shima Ryuhei) [#​56183](nodejs/node#56183) - \[[`8e780bc5ae`](nodejs/node@8e780bc5ae)] - **(SEMVER-MINOR)** **module**: use synchronous hooks for preparsing in import(cjs) (Joyee Cheung) [#​55698](nodejs/node#55698) - \[[`e5bb6c2303`](nodejs/node@e5bb6c2303)] - **(SEMVER-MINOR)** **module**: implement module.registerHooks() (Joyee Cheung) [#​55698](nodejs/node#55698) - \[[`f883bedceb`](nodejs/node@f883bedceb)] - **node-api**: allow napi_delete_reference in finalizers (Chengzhong Wu) [#​55620](nodejs/node#55620) - \[[`65bc8e847f`](nodejs/node@65bc8e847f)] - **(SEMVER-MINOR)** **report**: fix typos in report keys and bump the version (Yuan-Ming Hsu) [#​56068](nodejs/node#56068) - \[[`a6f0cfa468`](nodejs/node@a6f0cfa468)] - **sea**: only assert snapshot main function for main threads (Joyee Cheung) [#​56120](nodejs/node#56120) - \[[`0ab36e1937`](nodejs/node@0ab36e1937)] - **(SEMVER-MINOR)** **sqlite**: aggregate constants in a single property (Edigleysson Silva (Edy)) [#​56213](nodejs/node#56213) - \[[`4745798225`](nodejs/node@4745798225)] - **sqlite**: add support for custom functions (Colin Ihrig) [#​55985](nodejs/node#55985) - \[[`53cc0cc744`](nodejs/node@53cc0cc744)] - **sqlite**: support `db.loadExtension` (Alex Yang) [#​53900](nodejs/node#53900) - \[[`3968599702`](nodejs/node@3968599702)] - **src**: fix outdated js2c.cc references (Chengzhong Wu) [#​56133](nodejs/node#56133) - \[[`efcc5d90c5`](nodejs/node@efcc5d90c5)] - **(SEMVER-MINOR)** **src,lib**: stabilize permission model (Rafael Gonzaga) [#​56201](nodejs/node#56201) - \[[`a4a83613cb`](nodejs/node@a4a83613cb)] - **stream**: commit pull-into descriptors after filling from queue (Mattias Buelens) [#​56072](nodejs/node#56072) - \[[`3298ef4891`](nodejs/node@3298ef4891)] - **test**: remove test-sqlite-statement-sync flaky designation (Luigi Pinca) [#​56051](nodejs/node#56051) - \[[`1d8cc6179d`](nodejs/node@1d8cc6179d)] - **test**: use --permission over --experimental-permission (Rafael Gonzaga) [#​56239](nodejs/node#56239) - \[[`5d252b7a67`](nodejs/node@5d252b7a67)] - **test**: remove exludes for sea tests on PPC (Michael Dawson) [#​56217](nodejs/node#56217) - \[[`8288f57724`](nodejs/node@8288f57724)] - **test**: fix test-abortsignal-drop-settled-signals flakiness (Edigleysson Silva (Edy)) [#​56197](nodejs/node#56197) - \[[`683cc15796`](nodejs/node@683cc15796)] - **test**: move localizationd data from `test-icu-env` to external file (Livia Medeiros) [#​55618](nodejs/node#55618) - \[[`a0c4a5f122`](nodejs/node@a0c4a5f122)] - **test**: update WPT for url to [`6fa3fe8`](nodejs/node@6fa3fe8a92) (Node.js GitHub Bot) [#​56136](nodejs/node#56136) - \[[`a0e3926285`](nodejs/node@a0e3926285)] - **test**: remove `hasOpenSSL3x` utils (Antoine du Hamel) [#​56164](nodejs/node#56164) - \[[`041a49094e`](nodejs/node@041a49094e)] - **test**: update streams wpt (Mattias Buelens) [#​56072](nodejs/node#56072) - \[[`ea9a675f56`](nodejs/node@ea9a675f56)] - **test_runner**: exclude test files from coverage by default (Pietro Marchini) [#​56060](nodejs/node#56060) - \[[`118cd9998f`](nodejs/node@118cd9998f)] - **tools**: fix `node:` enforcement for docs (Antoine du Hamel) [#​56284](nodejs/node#56284) - \[[`c4c56daae8`](nodejs/node@c4c56daae8)] - **tools**: update github_reporter to 1.7.2 (Node.js GitHub Bot) [#​56205](nodejs/node#56205) - \[[`78743b1533`](nodejs/node@78743b1533)] - **tools**: add REPLACEME check to workflow (Mert Can Altin) [#​56251](nodejs/node#56251) - \[[`002ee71d9b`](nodejs/node@002ee71d9b)] - **tools**: use `github.actor` instead of bot username for release proposals (Antoine du Hamel) [#​56232](nodejs/node#56232) - \[[`d25d16efeb`](nodejs/node@d25d16efeb)] - ***Revert*** "**tools**: disable automated libuv updates" (Luigi Pinca) [#​56223](nodejs/node#56223) - \[[`b395e0c8c9`](nodejs/node@b395e0c8c9)] - **tools**: update gyp-next to 0.19.1 (Anna Henningsen) [#​56111](nodejs/node#56111) - \[[`a5aaf31c50`](nodejs/node@a5aaf31c50)] - **tools**: fix release proposal linter to support more than 1 folk preparing (Antoine du Hamel) [#​56203](nodejs/node#56203) - \[[`fa667d609e`](nodejs/node@fa667d609e)] - **tools**: remove has_absl_stringify from gyp file (Michaël Zasso) [#​56157](nodejs/node#56157) - \[[`65b541e70e`](nodejs/node@65b541e70e)] - **tools**: enable linter for `tools/icu/**` (Livia Medeiros) [#​56176](nodejs/node#56176) - \[[`28a4b6ff58`](nodejs/node@28a4b6ff58)] - **tools**: use commit title as MR title when creating release proposal (Antoine du Hamel) [#​56165](nodejs/node#56165) - \[[`e20eef659f`](nodejs/node@e20eef659f)] - **tools**: update gyp-next to 0.19.0 (Node.js GitHub Bot) [#​56158](nodejs/node#56158) - \[[`efcc829085`](nodejs/node@efcc829085)] - **tools**: bump the eslint group in /tools/eslint with 4 updates (dependabot\[bot]) [#​56099](nodejs/node#56099) - \[[`5620b2be8a`](nodejs/node@5620b2be8a)] - **tools**: improve release proposal MR opening (Antoine du Hamel) [#​56161](nodejs/node#56161) - \[[`3e17a8e78e`](nodejs/node@3e17a8e78e)] - **util**: harden more built-in classes against prototype pollution (Antoine du Hamel) [#​56225](nodejs/node#56225) - \[[`13815417c7`](nodejs/node@13815417c7)] - **util**: fix Latin1 decoding to return string output (Mert Can Altin) [#​56222](nodejs/node#56222) - \[[`77397c5013`](nodejs/node@77397c5013)] - **util**: do not rely on mutable `Object` and `Function`' `constructor` prop (Antoine du Hamel) [#​56188](nodejs/node#56188) - \[[`84f98e0a74`](nodejs/node@84f98e0a74)] - **v8,tools**: expose experimental wasm revectorize feature (Yolanda-Chen) [#​54896](nodejs/node#54896) - \[[`8325fa5c04`](nodejs/node@8325fa5c04)] - **worker**: fix crash when a worker joins after exit (Stephen Belanger) [#​56191](nodejs/node#56191) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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If a worker has not already joined before running to completion it will join in a SetImmediateThreadsafe which could occur after the worker has already ended by other means. Mutating a JS object at that point would fail because the isolate is already disposed.
Fixes #56020 (Note that this issue is not reproducible on 22+, but is likely still technically present on later versions as it appears to be a race condition which just happened to be reproducible in the specific conditions described in the issue. The originating code has not been changed in a long time, so it's likely just a very rare condition.)
cc @addaleax I would greatly appreciate a review from you as you're the last person to touch this code...even if it's been many years now. 😅