lkml.org 
[lkml]   [2020]   [Apr]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Trying to kexec on Allwinner A80
On Tue, Apr 07, 2020 at 11:32:53AM +0200, Corentin Labbe wrote:
> On Tue, Apr 07, 2020 at 09:12:57AM +0100, Russell King - ARM Linux admin wrote:
> > That was not reflected in the command lines given to kexec that you
> > quoted previously, so I'm now wondering if you're giving me the full
> > information.
> >
> > In any case, based on the information you've supplied thus far, I have
> > no further suggetsions to make.
> >
>
> Sorry I have added --debug after my initial mail.
> But I am surprised that no debug output like "MEMORY RANGES" is done (like I got in my first try).
> I have started to patch kexec-tools to check it, and debug is enabled.
> Furthermore, I got in locate_hole:237 memory_ranges=0.
> So the memory region in struct kexec_info is not initialized (and so cannot be printed)

The memory region information is initialised by get_memory_ranges()
in kexec/arch/arm/kexec-arm.c, which reads /proc/iomem.

That is called from my_load(), which checks that info.memory_ranges
is non-zero. If it's zero, it errors out with "Could not get memory
layout".

--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up

\
 
 \ /
  Last update: 2020-04-07 12:01    [W:0.062 / U:34.548 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site