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win: almost fix race detecting ESRCH in uv_kill #4341

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merged 1 commit into from
Mar 5, 2024
Merged

win: almost fix race detecting ESRCH in uv_kill #4341

merged 1 commit into from
Mar 5, 2024

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santigimeno
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It might happen that only using WaitForSingleObject() with timeout 0 could return WAIT_TIMEOUT as the process might not have been signaled yet. To improve things, first use GetExitCodeProcess() and check that status is not STILL_ACTIVE. Then, to cover for the case that the exit code was actually STILL_ACTIVE use WaitForSingleObject(). This could still be prone to the race condition but only for that case.

Fixes: nodejs/node#51766

@santigimeno santigimeno requested a review from vtjnash March 5, 2024 14:07
@santigimeno santigimeno mentioned this pull request Mar 5, 2024
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vtjnash
vtjnash approved these changes Mar 5, 2024
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Ah, good find. I assumed that TerminateProcess was a synchronization barrier since it used terms like "after", but apparently the kernel doesn't those implement semantics correctly.

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Can you copy this same code into the "health check" case? I would find it confusing if kill(SIGINT) returned ESRCH, and then kill(0) returned 0

vtjnash
vtjnash reviewed Mar 5, 2024
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vtjnash
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I think this is done @vtjnash ptal, thanks

@santigimeno
win: almost fix race detecting ESRCH in uv_kill
0bbadb3 
It might happen that only using `WaitForSingleObject()` with timeout 0
could return WAIT_TIMEOUT as the process might not have been signaled
yet. To improve things, first use `GetExitCodeProcess()` and check
that `status` is not `STILL_ACTIVE`. Then, to cover for the case that the exit
code was actually `STILL_ACTIVE` use `WaitForSingleObject()`. This could
still be prone to the race condition but only for that case.
@santigimeno santigimeno force-pushed the santi/win_kill_esrch branch from 09e1c46 to 0bbadb3 Compare March 5, 2024 20:19
@santigimeno santigimeno merged commit ff95879 into libuv:v1.x Mar 5, 2024
14 of 15 checks passed
@santigimeno santigimeno deleted the santi/win_kill_esrch branch March 5, 2024 20:22
@05nelsonm 05nelsonm mentioned this pull request Jun 16, 2024
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codebytere added a commit to electron/electron that referenced this pull request Oct 31, 2024
@codebytere
win: almost fix race detecting ESRCH in uv_kill
7e7f0b3 
libuv/libuv#4341
codebytere added a commit to electron/electron that referenced this pull request Oct 31, 2024
@codebytere
win: almost fix race detecting ESRCH in uv_kill
77f4f34 
libuv/libuv#4341
jkleinsc pushed a commit to electron/electron that referenced this pull request Nov 4, 2024
@codebytere
chore: bump Node.js to v22.9.0 (#44281)
c63d0d6 
* chore: bump Node.js to v22.9.0

* build: drop base64 dep in GN build

nodejs/node#52856

* build,tools: make addons tests work with GN

nodejs/node#50737

* fs: add fast api for InternalModuleStat

nodejs/node#51344

* src: move package_json_reader cache to c++

nodejs/node#50322

* crypto: disable PKCS#1 padding for privateDecrypt

nodejs-private/node-private#525

* src: move more crypto code to ncrypto

nodejs/node#54320

* crypto: ensure valid point on elliptic curve in SubtleCrypto.importKey

nodejs/node#50234

* src: shift more crypto impl details to ncrypto

nodejs/node#54028

* src: switch crypto APIs to use Maybe<void>

nodejs/node#54775

* crypto: remove DEFAULT_ENCODING

nodejs/node#47182

* deps: update libuv to 1.47.0

nodejs/node#50650

* build: fix conflict gyp configs

nodejs/node#53605

* lib,src: drop --experimental-network-imports

nodejs/node#53822

* esm: align sync and async load implementations

nodejs/node#49152

* esm: remove unnecessary toNamespacedPath calls

nodejs/node#53656

* module: detect ESM syntax by trying to recompile as SourceTextModule

nodejs/node#52413

* test: adapt debugger tests to V8 11.4

nodejs/node#49639

* lib: update usage of always on Atomics API

nodejs/node#49639

* test: adapt test-fs-write to V8 internal changes

nodejs/node#49639

* test: adapt to new V8 trusted memory spaces

nodejs/node#50115

* deps: update libuv to 1.47.0

nodejs/node#50650

* src: use non-deprecated v8::Uint8Array::kMaxLength

nodejs/node#50115

* src: update default V8 platform to override functions with location

nodejs/node#51362

* src: add missing TryCatch

nodejs/node#51362

* lib,test: handle new Iterator global

nodejs/node#51362

* src: use non-deprecated version of CreateSyntheticModule

nodejs/node#50115

* src: remove calls to recently deprecated V8 APIs

nodejs/node#52996

* src: use new V8 API to define stream accessor

nodejs/node#53084

* src: do not use deprecated V8 API

nodejs/node#53084

* src: do not use soon-to-be-deprecated V8 API

nodejs/node#53174

* src: migrate to new V8 interceptors API

nodejs/node#52745

* src: use supported API to get stalled TLA messages

nodejs/node#51362

* module: print location of unsettled top-level await in entry points

nodejs/node#51999

* test: make snapshot comparison more flexible

nodejs/node#54375

* test: do not set concurrency on parallelized runs

nodejs/node#52177

* src: move FromNamespacedPath to path.cc

nodejs/node#53540

* test: adapt to new V8 trusted memory spaces

nodejs/node#50115

* build: add option to enable clang-cl on Windows

nodejs/node#52870

* chore: fixup patch indices

* chore: add/remove changed files

* esm: drop support for import assertions

nodejs/node#54890

* build: compile with C++20 support

nodejs/node#52838

* deps: update nghttp2 to 1.62.1

nodejs/node#52966

* src: parse inspector profiles with simdjson

nodejs/node#51783

* build: add GN build files

nodejs/node#47637

* deps,lib,src: add experimental web storage

nodejs/node#52435

* build: add missing BoringSSL dep

* src: rewrite task runner in c++

nodejs/node#52609

* fixup! build: add GN build files

* src: stop using deprecated fields of v8::FastApiCallbackOptions

nodejs/node#54077

* fix: shadow variable

* build: add back incorrectly removed SetAccessor patch

* fixup! fixup! build: add GN build files

* crypto: fix integer comparison in crypto for BoringSSL

* src,lib: reducing C++ calls of esm legacy main resolve

nodejs/node#48325

* src: move more crypto_dh.cc code to ncrypto

nodejs/node#54459

* chore: fixup GN files for previous commit

* src: move more crypto code to ncrypto

nodejs/node#54320

* Fixup Perfetto ifdef guards

* fix: missing electron_natives dep

* fix: node_use_node_platform = false

* fix: include src/node_snapshot_stub.cc in libnode

* 5507047: [import-attributes] Remove support for import assertions

https://chromium-review.googlesource.com/c/v8/v8/+/5507047

* fix: restore v8-sandbox.h in filenames.json

* fix: re-add original-fs generation logic

* fix: ngtcp2 openssl dep

* test: try removing NAPI_VERSION undef

* chore(deps): bump @types/node

* src: move more crypto_dh.cc code to ncrypto

nodejs/node#54459

* esm: remove unnecessary toNamespacedPath calls

nodejs/node#53656

* buffer: fix out of range for toString

nodejs/node#54553

* lib: rewrite AsyncLocalStorage without async_hooks

nodejs/node#48528

* module: print amount of load time of a cjs module

nodejs/node#52213

* test: skip reproducible snapshot test on 32-bit

nodejs/node#53592

* fixup! src: move more crypto_dh.cc code to ncrypto

* test: adjust emittedUntil return type

* chore: remove redundant wpt streams patch

* fixup! chore(deps): bump @types/node

* fix: gn executable name on Windows

* fix: build on Windows

* fix: rename conflicting win32 symbols in //third_party/sqlite

On Windows otherwise we get:

lld-link: error: duplicate symbol: sqlite3_win32_write_debug
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:47987
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_sleep
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48042
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_is_nt
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48113
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_utf8_to_unicode
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48470
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_unicode_to_utf8
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48486
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_mbcs_to_utf8
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48502
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_mbcs_to_utf8_v2
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48518
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_utf8_to_mbcs
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48534
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

lld-link: error: duplicate symbol: sqlite3_win32_utf8_to_mbcs_v2
>>> defined at .\..\..\third_party\electron_node\deps\sqlite\sqlite3.c:48550
>>>            obj/third_party/electron_node/deps/sqlite/sqlite/sqlite3.obj
>>> defined at obj/third_party/sqlite\chromium_sqlite3/sqlite3_shim.obj

* docs: remove unnecessary ts-expect-error after types bump

* src: move package resolver to c++

nodejs/node#50322

* build: set ASAN detect_container_overflow=0

nodejs/node#55584

* chore: fixup rebase

* test: disable failing ASAN test

* win: almost fix race detecting ESRCH in uv_kill

libuv/libuv#4341
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childprocess kill() results in -4048 EPERM error on windows since update to v21.6.2
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@santigimeno @vtjnash