Re: [Caml-list] memory corruption using C stub

[Alexey Egorov <alex.only.d@gmail.com>]

OK, I'm minimized this function as much as possible and it's still
crashing - https://pastebin.com/MZ0Qkh9B
Now I'm thinking that is compiler's bug on windows...

2017-06-10 20:33 GMT+05:00 Alexey Egorov <alex.only.d@gmail.com>:
> Hello,
>
> I have an OCaml application with some C code which (I believe) is the
> reason of some random crashes.
>
> Here is the code - https://pastebin.com/FVtLphZu
> This function reads file at given offset, divides data into chunks and
> compute checksums and compression ratio:
>   external compute_data_props
>     : string -> int -> int -> int -> (int * int * float) list =
> "compute_data_props"
>
> The problem is, after some calls to this stub, application is crashing
> at random places in OCaml code.
> I can't figure out what's going wrong, but replacing this stub with
> dummy function (which does nothing but returns some predefined list)
> eliminates the problem.
>
> What can we do to debug it? We are using OCaml 4.04.1 and Windows 10,
> and there is no other C stubs in our codebase.
>
> Thanks!