JavaScript heap out of memory

[ctretyak]

I am using Astronvim community tailwind package with default config https://github.com/AstroNvim/astrocommunity/blob/4d8d63458cea63e704e0f08eeaf4d4c3330e19d4/lua/astrocommunity/pack/tailwindcss/init.lua

Regular (every day at least, usually often) tailwind language server is down because of memory:

[ERROR][2025-02-05 09:44:29] .../vim/lsp/rpc.lua:770	"rpc"	"/home/voyager/.local/share/nvim/mason/bin/tailwindcss-language-server"	"stderr"	"
<--- Last few GCs --->

[1341160:0x6de1000] 59744036 ms: Scavenge 4090.7 (4123.6) -> 4090.7 (4127.9) MB, pooled: 0 MB, 1.78 / 0.00 ms  (average mu = 0.997, current mu = 0.960) allocation failure; 
[1341160:0x6de1000] 59744061 ms: Mark-Compact (reduce) 4093.5 (4130.7) -> 4093.5 (4123.7) MB, pooled: 0 MB, 4.28 / 0.00 ms  (+ 0.1 ms in 0 steps since start of marking, biggest step 0.0 ms, walltime since start of marking 25 ms) (average mu = 0.995, curre

<--- JS stacktrace --->

FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory
----- Native stack trace -----

"
[ERROR][2025-02-05 09:44:29] .../vim/lsp/rpc.lua:770	"rpc"	"/home/voyager/.local/share/nvim/mason/bin/tailwindcss-language-server"	"stderr"	" 1: 0xe1bdfe node::OOMErrorHandler(char const*, v8::OOMDetails const&) [node]
 2: 0x123e800 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]
 3: 0x123ead7 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]
 4: 0x146c615  [node]
 5: 0x1485e89 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
 6: 0x145a558 v8::internal::HeapAllocator::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
 7: 0x145b485 v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
 8: 0x143387e v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [node]
 9: 0x1422974 v8::internal::FactoryBase<v8::internal::Factory>::AllocateRawWithImmortalMap(int, v8::internal::AllocationType, v8::internal::Tagged<v8::internal::Map>, v8::internal::AllocationAlignment) [node]
10: 0x142487f v8::internal::FactoryBase<v8::internal::Factory>::NewRawTwoByteString(int, v8::internal::AllocationType) [node]
11: 0x143f25a v8::internal::Factory::NewStringFromUtf8(v8::base::Vector<char const>, v8::internal::AllocationType) [node]
12: 0x125ad1d v8::String::NewFromUtf8(v8::Isolate*, char const*, v8::NewStringType, int) [node]
13: 0x10d0977  [node]
14: 0x10d0aaf node::StringDecoder::DecodeData(v8::Isolate*, char const*, unsigned long*) [node]
15: 0x10d100d  [node]
16: 0x7da90320f745 
"

[thecrypticace]

Interesting. I don't see this… ever. Any chance you could provide some more details about the kind of project(s) you use it on?

[ctretyak]

Interesting. I don't see this… ever. Any chance you could provide some more details about the kind of project(s) you use it on?

This is one of monorepo (turborepo) project. Next.js

[thecrypticace]

• How large is the project? (number of files, number of packages, etc)
• Do you have multiple installations of Tailwind CSS in that project or one shared installation?
• How many tailwind configs do you have in your project?
• Any chance you could provide LSP logs up to the point where the crash happens?

[ctretyak]

• How large is the project? (number of files, number of packages, etc)
• Do you have multiple installations of Tailwind CSS in that project or one shared installation?
• How many tailwind configs do you have in your project?
• Any chance you could provide LSP logs up to the point where the crash happens?

• I think it's medium size. not too big, but it's not a landing. It's about 15-20 pages
• It's one installation in one of the multirepo projects (apps/web/tailwind.config.js)
• One config
• logs before:

[WARN][2024-07-02 09:56:59] ...lsp/handlers.lua:135	"The language server copilot triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 09:57:40] .../lua/vim/lsp.lua:604	"buf_attach_client called on unloaded buffer (id: 162): "
[WARN][2024-07-02 09:57:41] .../lua/vim/lsp.lua:604	"buf_attach_client called on unloaded buffer (id: 162): "
[ERROR][2024-07-02 09:57:42] ...lsp/handlers.lua:623	"TSServer exited. Code: null. Signal: SIGTERM"
[START][2024-07-02 09:58:45] LSP logging initiated
[WARN][2024-07-02 09:58:45] ...lsp/handlers.lua:135	"The language server emmet_ls triggers a registerCapability handler for workspace/didChangeConfiguration despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 09:58:45] ...lsp/handlers.lua:135	"The language server emmet_ls triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 09:58:45] ...lsp/handlers.lua:135	"The language server eslint triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[ERROR][2024-07-02 09:58:45] ...lsp/handlers.lua:623	"invalid/unknown file in graphql config documents entry:\n 'apps/web/**/*.{graphql,gql}'"
[ERROR][2024-07-02 09:58:45] ...lsp/handlers.lua:623	"Error: \n      Unable to find any GraphQL type definitions for the following pointers:\n        \n          - apps/web/**/*.{graphql,gql}\n          "
[WARN][2024-07-02 09:58:45] ...lsp/handlers.lua:135	"The language server copilot triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 10:02:12] ...m/lsp/client.lua:1023	"server_request: no handler found for"	"workspace/diagnostic/refresh"
[ERROR][2024-07-02 10:02:13] ...lsp/handlers.lua:623	"Unhandled exception: MethodNotFound\nError: MethodNotFound\n    at handleResponse (/home/tretiak.k/.local/share/nvim/mason/packages/json-lsp/node_modules/vscode-langservers-extracted/node_modules/vscode-jsonrpc/lib/common/connection.js:561:48)\n    at handleMessage (/home/tretiak.k/.local/share/nvim/mason/packages/json-lsp/node_modules/vscode-langservers-extracted/node_modules/vscode-jsonrpc/lib/common/connection.js:398:20)\n    at Immediate.<anonymous> (/home/tretiak.k/.local/share/nvim/mason/packages/json-lsp/node_modules/vscode-langservers-extracted/node_modules/vscode-jsonrpc/lib/common/connection.js:368:30)\n    at process.processImmediate (node:internal/timers:478:21)"
[WARN][2024-07-02 10:17:06] ...lsp/handlers.lua:135	"The language server dockerls triggers a registerCapability handler for workspace/didChangeConfiguration despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 10:51:01] ...lsp/handlers.lua:135	"The language server eslint triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 11:11:33] ...m/lsp/client.lua:1023	"server_request: no handler found for"	"workspace/diagnostic/refresh"
[ERROR][2024-07-02 11:11:33] ...lsp/handlers.lua:623	"Failed to refresh diagnostics"
[WARN][2024-07-02 11:11:33] ...lsp/handlers.lua:135	"The language server emmet_ls triggers a registerCapability handler for workspace/didChangeConfiguration despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 11:11:33] ...lsp/handlers.lua:135	"The language server emmet_ls triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[WARN][2024-07-02 11:11:35] ...lsp/handlers.lua:135	"The language server tailwindcss triggers a registerCapability handler for workspace/didChangeWorkspaceFolders despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[ERROR][2024-07-02 11:23:01] ...lsp/handlers.lua:623	"The prop value with an expression type of JSXEmptyExpression could not be resolved. Please file an issue ( https://github.com/jsx-eslint/jsx-ast-utils/issues/new ) to get this fixed immediately."
[ERROR][2024-07-02 11:23:01] ...lsp/handlers.lua:623	"The prop value with an expression type of JSXEmptyExpression could not be resolved. Please file an issue ( https://github.com/jsx-eslint/jsx-ast-utils/issues/new ) to get this fixed immediately."
[ERROR][2024-07-02 11:26:50] .../vim/lsp/rpc.lua:770	"rpc"	"/home/tretiak.k/.local/share/nvim/mason/bin/tailwindcss-language-server"	"stderr"	"\n<--- Last few GCs --->\n\n[214016:0x2ec2cfd0]   917042 ms: Mark-Compact (reduce) 4093.3 (4124.3) -> 4093.3 (4121.3) MB, 4.12 / 0.00 ms  (+ 15.9 ms in 2 steps since start of marking, biggest step 15.9 ms, walltime since start of marking 33 ms) (average mu = 0.870, current mu = 0.54[214016:0x2ec2cfd0]   917069 ms: Mark-Compact (reduce) 4094.2 (4122.3) -> 4094.2 (4122.3) MB, 20.99 / 0.00 ms  (average mu = 0.770, current mu = 0.232) allocation failure; scavenge might not succeed\n\n\n<--- JS stacktrace --->\n\nFATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory\n----- Native stack trace -----\n\n"
[ERROR][2024-07-02 11:26:50] .../vim/lsp/rpc.lua:770	"rpc"	"/home/tretiak.k/.local/share/nvim/mason/bin/tailwindcss-language-server"	"stderr"	" 1: 0xb82c78 node::OOMErrorHandler(char const*, v8::OOMDetails const&) [node]\n 2: 0xeefa80 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]\n 3: 0xeefd67 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]\n 4: 0x1101905  [node]\n 5: 0x1119788 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]\n 6: 0x10ef8a1 v8::internal::HeapAllocator::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]\n 7: 0x10f0a35 v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]\n 8: 0x10cd156 v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [node]\n 9: 0x10bed84 v8::internal::FactoryBase<v8::internal::Factory>::AllocateRawWithImmortalMap(int, v8::internal::AllocationType, v8::internal::Map, v8::internal::AllocationAlignment) [node]\n10: 0x10c2097 v8::internal::FactoryBase<v8::internal::Factory>::NewRawTwoByteString(int, v8::internal::AllocationType) [node]\n11: 0x10d85cb v8::internal::Factory::NewStringFromUtf8(v8::base::Vector<char const> const&, v8::internal::AllocationType) [node]\n12: 0xf02312 v8::String::NewFromUtf8(v8::Isolate*, char const*, v8::NewStringType, int) [node]\n13: 0xde2ed1  [node]\n14: 0xde2fef node::StringDecoder::DecodeData(v8::Isolate*, char const*, unsigned long*) [node]\n15: 0xde352d  [node]\n16: 0x76124944d546 \n"

[thecrypticace]

@ctretyak I actually discovered a case that causes the language server to crash repeatedly with out of memory issues though it does so rather quickly: recursive symlinks

I've got a work in progress PR to address this but it needs a decent bit of testing before it's merged and released.

[thecrypticace]

The recursive symlink fix for this was release a bit ago. There's another possibility of this happening that I've addressed but it should've only affected v4 projects (and it's been fixed but not released yet). Gonna close this one. If you're still seeing this I'd love to see a project I can reproduce it with.