[Gta04-owner] Replicant 4.2 with LetuxOS kernel 5.10

[H. Nikolaus Schaller]

Hi all,
I played a little on the GTA04 with Replicant 4.2 and the
latest letux-5.10.10-replicant kernel [1].

It starts up to a console shell but then the boot process stops.

It appears as if the 'zygote' process tries (or succeeds)
to launch the 'system_server' process but then exits.

root at android:/ # uname -a
Linux localhost 5.10.10-letux-replicant #4842 SMP PREEMPT Sat Jan 30 08:46:17 CET 2021 armv7l GNU/Linux
root at android:/ # ps                                                                                                 
USER     PID   PPID  VSIZE  RSS     WCHAN    PC         NAME
root      1     0     388    260   00000001 00000000 S /sbin/init
root      2     0     0      0     00000001 00000000 S kthreadd
root      3     2     0      0     00000001 00000000 I rcu_gp
root      4     2     0      0     00000001 00000000 I rcu_par_gp
...
root      9311  2     0      0     00000001 00000000 I kworker/0:0-events_power_efficient
root      10201 2     0      0     00000001 00000000 I kworker/0:1H
root      10908 2     0      0     00000001 00000000 I kworker/0:1-events
root      11171 1     279452 48620 00000000 00000000 S zygote
system    11175 11171 287408 23116 00000000 00000000 D system_server
root      11188 1937  1132   400   00000000 00000000 R ps
root at android:/ # [ 8034.207000] init: untracked pid 11171 exited
[ 8034.288116] init: untracked pid 11175 exited

There is an overview of the Android boot process [2], but 
there is no mechanism to debug...

The same user-space works fine with letux-5.4.92-replicant, so it
is some kernel incompatibility.

Any hints and help are welcome,
Nikolaus

[1]: https://git.goldelico.com/?p=letux-kernel.git;a=shortlog;h=refs/heads/letux-5.11-rc5-replicant
[2]: https://medium.com/@voodoomio/what-the-zygote-76f852d887d9