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

Andreas Kemnade andreas at kemnade.info
Tue Dec 4 22:04:36 CET 2018


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?


> The PARTUUID claimed to be missing seems to be correct (read through a device with USB card reader):
> 
> root at letux:~# blkid
> /dev/mmcblk0: PTUUID="10a12191" PTTYPE="dos"
> /dev/mmcblk0p1: LABEL="rootfs" UUID="46b783c0-53e3-42fe-96c4-8a7eae14739e" TYPE="ext3" PARTUUID="10a12191-01"
> /dev/sdb1: LABEL="boot" UUID="D707-1ABC" TYPE="vfat" PARTUUID="17b72d7a-01"
> /dev/sdb2: LABEL="rootfs" UUID="bbe7f361-dfbc-4fb2-b8e0-a71f748c48d1" TYPE="ext3" PARTUUID="17b72d7a-02"
> root at letux:~# 
> 
> I can see this effect only for 4.20-rc kernels (rc1..rc5).
> Not for 4.19.x kernels which boot fine from the identical u-boot and rootfs (I have only
> swapped uImage, modules and dtbs).
> 
Well, the sdcard from you does not have that problem.

Regrads,
Andreas
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