RE: kernel doesn't start booting after chaning to minimum config (on qemu arm64 machine)

2021-10-13 Thread Chan Kim
Hi Greg K-H, > There are two different ways of getting a "minimal" kernel > configuration: > - start with a working one and remove items until something > breaks > - start with a minimal config and keep adding things until it > works. > > Usually the first option is

Re: kernel doesn't start booting after chaning to minimum config (on qemu arm64 machine)

2021-10-13 Thread Greg KH
On Tue, Oct 12, 2021 at 11:06:53PM +0900, Chan Kim wrote: > Hello all, > > To make a minimal kernel size (with almost no driver), I copied a .config > that was used for building kernel for sparc machine using linux 3.3 several > years ago to current linux 5.4.21 version build tree. > > (That

kernel doesn't start booting after chaning to minimum config (on qemu arm64 machine)

2021-10-12 Thread Chan Kim
Hello all, To make a minimal kernel size (with almost no driver), I copied a .config that was used for building kernel for sparc machine using linux 3.3 several years ago to current linux 5.4.21 version build tree. (That .config was for kernel with interrupt controller, timer and uart so a very