A6 keeps crashing

[Avatarsia]

with v. 1.0.1 - rc1 it works fine
with 1.0.1 & 1.0.2 we have fatal crashes, no logs are ever created
in 1.0.2 not even the user password change is kept saved after crash
error once listed via serial console :
Message from syslogd@recore at Jul 13 16:02:27 ...
kernel:[ 124.110495] Internal error: SP/PC alignment exception: 000000008a000000 [#1] SMP

Message from syslogd@recore at Jul 13 16:02:27 ...
kernel:[ 124.318532] Code: ???????? ???????? ???????? ???????? (????????)