Description of the problem

Seems like RLIMIT_STACK is overwritten to the default value (read from the manifest file) in the child process.

In other words, a program like this:

    struct rlimit rlim = { .rlim_cur = 1024*1024, .rlim_max = 1024*1024*1024 };
    setrlimit(RLIMIT_STACK, rlim);
    fork();
    ... child runs ...

will not inherit the set-by-parent stack limit. Instead the child will use the stack size read from the manifest file.

This is in contrast to how other resource limits are propagated to the child, in particular, the brk (RLIMIT_DATA) limit: