src: avoid draining platform tasks at FreeEnvironment #51290
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src/node_main_instance.cc
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| #ifdef DEBUG | ||
| // node::Environment has been disposed and no JavaScript Execution is allowed | ||
| // at this point. | ||
| Isolate::DisallowJavascriptExecutionScope disallow_js( |
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Why is Isolate::DisallowJavascriptExecutionScope only called when DEBUG is set?
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Disallowing JavaScript execution in this function is primarily a rule to avoid footguns, i.e. Environment has been freed and most Node.js APIs would not work. However, it is still valid to evaluate JavaScript as the Isolate has not been freed.
So, to enforce the rule, the Isolate::DisallowJavascriptExecutionScope is opened and will strictly crash the process if JavaScript is invoked in this scope. This would allow us to identify possible problems in debug build. While in the release build, it would be better to be more lenient and let the JavaScript run at the best effort.
I've updated the patch to include a comment about this.
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`.
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Landed in 5db35b4 |
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Thanks. Can we know which version version of node will first include this fix ? |
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Will this be ported to the node 20.x branch? Thanks! |
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If there are no unplanned side effects, yes! |
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: #51290 Fixes: #47748 Fixes: #49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: nodejs#51290 Fixes: nodejs#47748 Fixes: nodejs#49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: nodejs#51290 Fixes: nodejs#47748 Fixes: nodejs#49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: #51290 Fixes: #47748 Fixes: #49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: #51290 Fixes: #47748 Fixes: #49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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* chore: bump node in DEPS to v20.12.0 * chore: update build_add_gn_build_files.patch * chore: update patches * chore: bump node in DEPS to v20.12.1 * chore: update patches * build: encode non-ASCII Latin1 characters as one byte in JS2C nodejs/node#51605 * crypto: use EVP_MD_fetch and cache EVP_MD for hashes nodejs/node#51034 * chore: update filenames.json * chore: bump node in DEPS to v20.12.2 * chore: update patches * src: support configurable snapshot nodejs/node#50453 * test: remove test-domain-error-types flaky designation nodejs/node#51717 * src: avoid draining platform tasks at FreeEnvironment nodejs/node#51290 * chore: fix accidentally deleted v8 dep * lib: define FormData and fetch etc. in the built-in snapshot nodejs/node#51598 * chore: rebase on main * chore: remove stray log --------- Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com> Co-authored-by: Cheng <[email protected]> Co-authored-by: Shelley Vohr <[email protected]> Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
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At the point of `FreeEnvironment` and onwards, no JavaScript execution associated with the Environment should be triggered. Avoid draining platform tasks that can trigger JavaScript execution in `FreeEnvironment`. The holder of `node::Environment` should immediately call `node::MultiIsolatePlatform::UnregisterIsolate` and `v8::Isolate::Dispose` to cancel pending foreground tasks and join concurrent tasks after the environment was freed. `NodePlatform` can properly handle the case in `RunForegroundTask` when an Isolate out-lives its associated `node::Environment`. PR-URL: #51290 Fixes: #47748 Fixes: #49344 Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
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* chore: bump node in DEPS to v20.13.1 * chore: bump node in DEPS to v20.14.0 * chore: update build_add_gn_build_files.patch * chore: update patches * chore: update patches * build: encode non-ASCII Latin1 characters as one byte in JS2C nodejs/node#51605 * crypto: use EVP_MD_fetch and cache EVP_MD for hashes nodejs/node#51034 * chore: update filenames.json * chore: update patches * src: support configurable snapshot nodejs/node#50453 * test: remove test-domain-error-types flaky designation nodejs/node#51717 * src: avoid draining platform tasks at FreeEnvironment nodejs/node#51290 * chore: fix accidentally deleted v8 dep * lib: define FormData and fetch etc. in the built-in snapshot nodejs/node#51598 * chore: remove stray log * crypto: enable NODE_EXTRA_CA_CERTS with BoringSSL nodejs/node#52217 * test: skip test for dynamically linked OpenSSL nodejs/node#52542 * lib, url: add a `windows` option to path parsing nodejs/node#52509 * src: use dedicated routine to compile function for builtin CJS loader nodejs/node#52016 * test: mark test as flaky nodejs/node#52671 * build,tools: add test-ubsan ci nodejs/node#46297 * src: preload function for Environment nodejs/node#51539 * deps: update c-ares to 1.28.1 nodejs/node#52285 * chore: fixup * events: extract addAbortListener for safe internal use nodejs/node#52081 * module: print location of unsettled top-level await in entry points nodejs/node#51999 * fs: add stacktrace to fs/promises nodejs/node#49849 * chore: fixup indices --------- Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com> Co-authored-by: Cheng <[email protected]> Co-authored-by: Shelley Vohr <[email protected]> Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
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At the point of
FreeEnvironmentand onwards, no JavaScript executionassociated with the Environment should be triggered.
Avoid draining platform tasks that can trigger JavaScript execution in
FreeEnvironment. The holder ofnode::Environmentshould immediatelycall
node::MultiIsolatePlatform::UnregisterIsolateandv8::Isolate::Disposeto cancel pending foreground tasks and joinconcurrent tasks after the environment was freed.
NodePlatformcan properly handle the case inRunForegroundTaskwhenan Isolate out-lives its associated
node::Environment.Fixes: #47748
Fixes: #49344