Kernel development virtualization options

[Laurence Rochfort]

Hi all,

Thus far, I've been testing my kernel patches in a KVM vm with a full
distro installation, but it's pretty slow and cumbersome.

Valerie Aurora has a blog post on using User-mode Linux, and others
mention QEMU with an overlay filesystem and BusyBox.

What do people recommend for quick iterative development, with good
GDB integration?

Cheers,
Laurence.