Linux kernel 6.12.50 compiled
A week ago, compiled the 6.12.48 kernel, with extra modules required to support wireguard and wg-quick:
- Aiming to support Wireguard — September 25, 2025
Now that we have embraced overlayfs, replacing aufs, there are new problems. Have worked through them, see recent blog posts; however, have not yet got direct-save to work. Attempting direct-save has brought with it the dreaded "cross-device link" error message, that I have complained about over the years. That error has kept me away from overlay, as aufs "just works". Or rather has just-worked until recently.
I want to experiment with different ways to use overlay,
including tmpfs as a layer. Then I realised that the kernel
requires xattrs enabled for tmpfs, but it isn't. So, I have
compiled the 6.12.50 kernel, with "Tmpfs POSIX Access Control
Lists" and "Tmpfs extended attributes" enabled:

Now to do some more experimenting with
overlay...
Tags: easy