I wonder what happened to that proposal from a few years ago [1] to let Linux communicate more detailed error info to userland. Integer error codes are good en

I wonder what happened to that proposal from a few years ago [1] to let Linux communicate more detailed error info to userland. Integer error codes are good enough for the most common errors, but in obscure cases like that one, it's often unreasonably difficult to figure out where an error code came from or what exactly went wrong. [1] https://lwn.net/Articles/657341/ https://lwn.net/Articles/657341/