[BISECTED] kexec regression on PowerBook G4

[Aaro Koskinen]

Hi,

On Thu, May 23, 2019 at 07:33:38AM +0200, Christophe Leroy wrote:
> Ok, the Oops confirms that the error is due to executing the kexec control
> code which is located outside the kernel text area.
> 
> My yesterday's proposed change doesn't work because on book3S/32, NX
> protection is based on setting segments to NX, and using IBATs for kernel
> text.
> 
> Can you try the patch I sent out a few minutes ago ?
> (https://patchwork.ozlabs.org/patch/1103827/)

It now crashes with "BUG: Unable to handle kernel instruction fetch"
and the faulting address is 0xef13a000.

A.