run error without any error info in gramine-sgx

[mccoysc]

the module work well in linux,but get crashed without any error info in gramine-sgx when loaded.

i found a debug info via gramine-sgx which said that "memory access error at address 0.

and also,i can run python by spawn("python").so the error must be caused by node-calls-python.

[mccoysc]

and also,in normal nodejs env,if i call some times,it also throw an error "SIGSEGV" and killed.
it seems that you have some memory error in code.

[mccoysc]

my code just like this:

//only call this once.
py=new interpreter()// i just export your class,not the instance of your class.

//may call many times:
pymodule=py.importSync("someMod")
pymodule.execSync(pymodule,params)
pymodule.evalSync(pymodule,parms)

at some time,the code cause nodejs crashed with SIGSEGV

[mccoysc]

i found that some time it crashed at evalSync with py code "data" and really,data is not defined in py file.

but,it don't crash every time,just "some time".

[hmenyus]

Please attach a reproducable standalone example. What are your OS and node versions?

[mccoysc]

Please attach a reproducable standalone example. What are your OS and node versions?

any code that run nodejs and require node-calls-python in gramine-sgx would repruduce the error.
about gramine-sgx:
https://github.com/gramineproject/gramine

[mccoysc]

[mccoysc]

i add some logs to your cpp code,and this is the logs:

[mccoysc]

@hmenyus

[mccoysc]

and more:
if you create a worker,in the worker you require node-calls-python.
and call some api like importSync("import tensorflow") and execSync.
and then terminate the worker.

and loop the above,maybe the node-calls-python would crash node process some time.

[hmenyus]

I cannot reproduce your problem with workers.

Regarding gramine: I do not have time to help you with this. Ubuntu, windows, mac work fine.

In the meantime I have added some improvements to some edge-cases in 1.7.5. Hopefully that will help you.