Local vs CI: RuntimeError: null function or function signature mismatch #25950
Description
I am one of the maintainers of PGlite - PostgreSQL in WASM.
I have been chasing a RuntimeError that only happens in the CI.
The crash is this:
RuntimeError: null function or function signature mismatch
at pglite.wasm.MemoryContextAlloc (wasm://wasm/pglite.wasm-095d8682:wasm-function[13757]:0x5673f7)
at pglite.wasm.LockAcquireExtended (wasm://wasm/pglite.wasm-095d8682:wasm-function[8504]:0x3defb1)
at pglite.wasm.LockRelationOid (wasm://wasm/pglite.wasm-095d8682:wasm-function[8456]:0x3dd814)
at pglite.wasm.relation_open (wasm://wasm/pglite.wasm-095d8682:wasm-function[730]:0x9408c)
at pglite.wasm.table_open (wasm://wasm/pglite.wasm-095d8682:wasm-function[1625]:0xfb235)
at pglite.wasm.update_attstats (wasm://wasm/pglite.wasm-095d8682:wasm-function[3145]:0x1bac76)
at pglite.wasm.do_analyze_rel (wasm://wasm/pglite.wasm-095d8682:wasm-function[3139]:0x1ba20a)
at pglite.wasm.analyze_rel (wasm://wasm/pglite.wasm-095d8682:wasm-function[3137]:0x1b9005)
at invoke_viiiiii (/home/runner/_work/pglite/pglite/packages/pglite/dist/index.js:3:131071)
at pglite.wasm.vacuum (wasm://wasm/pglite.wasm-095d8682:wasm-function[3833]:0x24f1c7)
Full CI run can be seen here.
This happens on node 22 and above (node 20 works fine), but only on CI. I cannot reproduce it locally with the same node version(s).
More info
The .wasm is built in a docker container both locally and in CI.
The test passes when running on node 20 even in CI. See this run.
Having looked at https://emscripten.org/docs/porting/Debugging.html and trying to identify the issue without success, I am searching for pointers in how I could reproduce it locally, identify it and possibly fix it.