Re: [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel e820 table
From: Baoquan He
Date: Sat Jun 08 2019 - 06:06:06 EST
On 06/08/19 at 11:10am, Borislav Petkov wrote:
> On Sat, Jun 08, 2019 at 11:54:51AM +0800, Baoquan He wrote:
> > Is it a UEFI box?
OK, it doesn't matter with uefi since CONFIG_RANDOMIZE_BASE is not set.
> > If it's uefi machine, it should relate to below issue. Because kexec
> > always fails to randomly choose a new position for kernel.
> The kernel succeeds in selecting a position for the kernel - the kexec
> kernel doesn't load when a panic happens. Rather, the box panics and
> nothing more.
OK, it may be different with the case we met, if panic happened when
load a kdump kernel.
We can load with 'kexec -l' or 'kexec -p', but can't boot after triggering
crash or execute 'kexec -e' to do kexec jumping.