Pylance still crashes after switching to my own Node.js executable

[nickchen120235]

Hi community!

I recently experienced constant crashes in Pylance so I switched to my own Node.js, installed via nvm, following this troubleshooting guide. However, it still crashes because of allocation failed. I wonder if I misconfigured anything.

I use remote ssh to connect to the server. The server (actually a vm) has 16G of RAM and 16 CPU cores.

code --version

root@my-server:~/my-code# code --version
1.97.2
e54c774e0add60467559eb0d1e229c6452cf8447
x64

Pylance output

("service" has been renamed to protect private project)

2025-02-25 02:17:22.205 [info] [Info  - 2:17:22 AM] (11075) Server root directory: file:///root/.vscode-server/extensions/ms-python.vscode-pylance-2025.2.101/dist
2025-02-25 02:17:22.208 [info] [Info  - 2:17:22 AM] (11075) Pylance language server 2025.2.101 (pyright version 1.1.394, commit 8a3ad454) starting
2025-02-25 02:17:22.223 [info] [Info  - 2:17:22 AM] (11075) Starting service instance "my-code"
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Setting environmentName for service "my-code": "3.10.12 (global)"
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Setting pythonPath for service "my-code": "/bin/python3"
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) No include entries specified; assuming /root/my-code
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Auto-excluding **/node_modules
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Auto-excluding **/__pycache__
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Auto-excluding **/.*
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Assuming Python version 3.10.12.final.0
2025-02-25 02:17:22.471 [info] [Info  - 2:17:22 AM] (11075) Found 692 source files
2025-02-25 02:17:22.752 [info] [Info  - 2:17:22 AM] (11075) Background analysis(1) root directory: file:///root/.vscode-server/extensions/ms-python.vscode-pylance-2025.2.101/dist
2025-02-25 02:17:22.754 [info] [Info  - 2:17:22 AM] (11075) Background analysis(1) started
2025-02-25 02:17:22.812 [info] [Info  - 2:17:22 AM] (11075) Indexer background runner(2) root directory: file:///root/.vscode-server/extensions/ms-python.vscode-pylance-2025.2.101/dist (index)
2025-02-25 02:17:22.812 [info] [Info  - 2:17:22 AM] (11075) Indexing(2) started
2025-02-25 02:17:23.098 [info] [Info  - 2:17:23 AM] (11075) scanned(2) 92 files over 1 exec env
2025-02-25 02:17:23.224 [info] [Info  - 2:17:23 AM] (11075) indexed(2) 92 files over 1 exec env
2025-02-25 02:17:23.244 [info] [Info  - 2:17:23 AM] (11075) Indexing finished(2).
2025-02-25 02:17:25.583 [info] 
<--- Last few GCs --->

[11075:0x7624e8001000]     3051 ms: Scavenge 565.8 (614.6) -> 554.9 (617.4) MB, pooled: 5 MB, 3.12 / 0.00 ms  (average mu = 0.911, current mu = 0.830) allocation failure; 
[11075:0x7624e8001000]     3076 ms: Scavenge 572.3 (620.4) -> 561.5 (622.4) MB, pooled: 0 MB, 2.84 / 0.00 ms  (average mu = 0.911, current mu = 0.830) allocation failure; 


<--- JS stacktrace --->

FATAL ERROR: MarkCompactCollector: young object promotion failed Allocation failed - JavaScript heap out of memory
----- Native stack trace -----


2025-02-25 02:17:25.583 [info]  1: 0xe36196 node::OOMErrorHandler(char const*, v8::OOMDetails const&) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.583 [info]  2: 0x123f4a0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.584 [info]  3: 0x123f777 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.584 [info]  4: 0x146d1a5  [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.584 [info]  5: 0x14a224a void v8::internal::LiveObjectVisitor::VisitMarkedObjectsNoFail<v8::internal::EvacuateNewSpaceVisitor>(v8::internal::PageMetadata*, v8::internal::EvacuateNewSpaceVisitor*) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.585 [info]  6: 0x14b71d5 v8::internal::Evacuator::RawEvacuatePage(v8::internal::MutablePageMetadata*) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.585 [info]  7: 0x14b769f v8::internal::Evacuator::EvacuatePage(v8::internal::MutablePageMetadata*) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.586 [info]  8: 0x14b79df v8::internal::PageEvacuationJob::Run(v8::JobDelegate*) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.586 [info]  9: 0x2236e8d v8::platform::DefaultJobState::Join() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.587 [info] 10: 0x2237023 v8::platform::DefaultJobHandle::Join() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.587 [info] 11: 0x14b5852 v8::internal::MarkCompactCollector::EvacuatePagesInParallel() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.588 [info] 12: 0x14c4530 v8::internal::MarkCompactCollector::Evacuate() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.588 [info] 13: 0x14c4ead v8::internal::MarkCompactCollector::CollectGarbage() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.589 [info] 14: 0x14840ee v8::internal::Heap::MarkCompact() [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.589 [info] 15: 0x1484c75 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::internal::GarbageCollectionReason, char const*) [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.589 [info] 16: 0x1485fc9  [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.590 [info] 17: 0x1489458  [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.590 [info] 18: 0x1cc6071  [/root/.nvm/versions/node/v22.14.0/bin/node]

2025-02-25 02:17:25.673 [info] [Info  - 2:17:25 AM] Connection to server got closed. Server will restart.
2025-02-25 02:17:25.673 [info] true
2025-02-25 02:17:25.676 [info] [Error - 2:17:25 AM] Server process exited with signal SIGABRT.

Any help would be appreciated! Thanks!

[nickchen120235]

For context my server is idling at around 3.8G of total used RAM when connected to and Pylance crashes at around 5.8G of total used RAM.