I pushed the commit 7f89e4cc5c84b720928c2936c9e2e0630aebec9e for this purpose.
You have to execute `ksr_module_set_flag(KSRMOD_FLAG_POSTCHILDINIT)` inside `mod_init()` and then handle rank `PROC_POSTCHILDINIT` in `child_init()`.
Hoping it offers what is needed for this one.