[Letux-kernel] Strange problem with non-LPAE letux-4.20-rc kernels on 4GB Pyra only

H. Nikolaus Schaller hns at goldelico.com
Tue Dec 4 22:20:46 CET 2018


Hi,

> Am 04.12.2018 um 22:13 schrieb Andreas Kemnade <andreas at kemnade.info>:
> 
> On Tue, 4 Dec 2018 22:04:36 +0100
> Andreas Kemnade <andreas at kemnade.info> wrote:
> 
>> On Tue, 4 Dec 2018 21:55:56 +0100
>> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>> 
>>> Hi,
>>> for testing of some new patches I did compile some letux-4.20-rc5
>>> in non-lpae mode and tried to boot on the 4GB Pyra.
>>> 
>>> Boot process ends with:
>>> 
>>> [    3.544616] input: user-button as /devices/platform/user-button/input/input0
>>> [    3.555006] input: pyra-game-buttons as /devices/platform/pyra-game-buttons/input/input1
>>> [    3.564689] input: pyra-lid-wakeup as /devices/platform/pyra-lid-wakeup/input/input2
>>> [    3.575503] palmas-rtc 48070000.i2c:palmas at 48:rtc: setting system clock to 2000-01-02 10:57:35 UTC (946810655)
>>> [    3.586006] sr_init: No PMIC hook to init smartreflex
>>> [    3.592186] vmmcsdio_fixed: disabling
>>> [    3.597267] ldo3: disabling
>>> [    3.600850] ldo8: disabling
>>> [    3.604153] modem_vbus_power: disabling
>>> [    3.608201] otg_path: disabling
>>> [    3.611513] ALSA device list:
>>> [    3.614662]   No soundcards found.
>>> [    3.618600] Waiting for root device PARTUUID=17b72d7a-02...
>>> 
>> AFAIK PARTUUID resolution is done by initrd normally?! So I am
>> wondering why it ever has worked. Was there somehow a duplicate root=
>> parameter, so 4.19 took the one it can process?
>> 
>> 
> ok, did some RTFM... 
> I was wrong.

Ok.

Anyways it is becoming more strange now. I did boot the old Pyra
from eMMC. With an 4.19.3 kernel. And it failed as well. But the
4.20-rc5 boots there.

Now I have different boot logs to compare:
4.19.3 on old Pyra fails
4.19.4 on new Pyra boots
4.20-rc5 on new Pyra fails
4.20-rc5 on old Pyra boots

What is the logic behind?

At least I can test the 4.20-rc5 on the old Pyra and try to search for panel enable calls.
Well, it does not try to enable the panel.

BR and thanks,
Nikolaus



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