Panic on Rpi3 at r358976

[Mark Millard]

On 2020-Mar-15, at 17:33, Kyle Evans <kevans at freebsd.org> wrote:

> On Sat, Mar 14, 2020 at 11:12 PM bob prohaska <fbsd at www.zefox.net> wrote:
>> 
>> Tried to boot a kernel built from r358976 on a Pi3 and got a panic:
>> 
>> [... snip ...]
> 
> Hi,
> 
> I've got a patch against sysutils/u-boot-rpi{3,4} based on what I've
> submitted upstream that I'm test-building again and will soon be
> submitting to Phabricator; please give it a shot and confirm if it
> makes life happier or not:
> https://people.freebsd.org/~kevans/rpi-psci.diff

I grep'd in the area that holds where I did the
investigative patch that enabled the RPi4 to boot
and such without the armstub8-gic.bin memory being
slamed. (I've not done any clean-out of the materials
in that area.)

The result is not suggestive of CONFIG_RPI_EFI_NR_SPIN_PAGES
making a difference:

# grep -r CONFIG_RPI_EFI_NR_SPIN_PAGES /wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/
#

(I.e., nothing found.) The same was true for grep'ing
in the wider area:

/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/

By contrast, for CONFIG_ENV_FAT_DEVICE_AND_PART :

# grep -r CONFIG_ENV_FAT_DEVICE_AND_PART /wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/configs/am65x_evm_r5_defconfig:CONFIG_ENV_FAT_DEVICE_AND_PART="1:1"
. . . (I'll not show the other 33 lines of matches) . . .

I will show .h and .c source lines using
CONFIG_ENV_FAT_DEVICE_AND_PART :

wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/env/fat.c:					CONFIG_ENV_FAT_DEVICE_AND_PART,
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/env/fat.c:					CONFIG_ENV_FAT_DEVICE_AND_PART,
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/include/configs/sama5d27_som1_ek.h:#define CONFIG_BOOTCOMMAND	"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x21000000 at91-sama5d27_som1_ek.dtb; " \
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/include/configs/sama5d27_som1_ek.h:				"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x22000000 zImage; " \
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/include/configs/sama5d2_xplained.h:#define CONFIG_BOOTCOMMAND	"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x21000000 at91-sama5d2_xplained.dtb; " \
/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/include/configs/sama5d2_xplained.h:				"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x22000000 zImage; " \

A file that lists the potential CONFG_* names seems to be:

/wrkdirs/usr/ports/sysutils/u-boot-rpi4/work/u-boot-2019.10/u-boot.cfg.configs

and it does not have CONFIG_RPI_EFI_NR_SPIN_PAGES .


I've no evidence that 2019.10 would make any use of
a CONFIG_RPI_EFI_NR_SPIN_PAGES definition.

Still, I can try it later if desired.


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)