[Letux-kernel] LX20 prototype is booting

[Andreas Kemnade]

Am Tue, 29 Apr 2025 08:48:47 +0200
schrieb "H. Nikolaus Schaller" <hns at goldelico.com>:

> > Am 29.04.2025 um 07:48 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> > 
> > 
> >   
> >> Am 28.04.2025 um 22:18 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> >> 
> >> So there is something wrong with passing or processing the command line...
> >> Maybe kernel gets stuck in some loop.
> >> Shouldn't be very difficult to analyse.  
> > 
> > Ok, it turns out to be stuck in this panic (which can not be printed before standard printk is set up):
> > 
> > https://elixir.bootlin.com/linux/v6.1.28/source/drivers/of/fdt.c#L1265
> > 
> > So I have to analyse why memblock_alloc() fails. AFAIR we had a similar issue with the X1600.  
> 
> Ok, it appears that there is no mem= entry in the command line... Hence there is no early
> memory which can be allocated and
> 
> https://elixir.bootlin.com/linux/v6.1.28/source/mm/memblock.c#L295
> 
> fails to set the end (which is 0 by default) to a reasonable value.
> 
> This is consistent with that our 6.15 kernel and the sudomaker 6.1 kernel show the same
> failure.
> 
> So we have to find the fix in our U-Boot and not the kernel. And it is likely something
> very simple...
> 
Does the chosen/memory node exists and/or is properly populated
(manually or by U-Boot)

Regards,
Andreas