No, I build kernel separately from here:https://github.com/dmitrysmagin/a380_kernel
, branch: jz-2.6.32
I don't remember for sure, but these two options must be on (=m) to enable serial over usb
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_SERIAL is not set
It was real pain to upgrade from 2.6.24 to 2.6.32, because it's a really dirty chinese code. In fact, everything should be redone from scratch, but I don't have much time and will to go on with kernel right now.
Thanks for the hint with system swap. It seems I reinvented the bicycle.
Btw, even with swap some encrypted roms (mslug3&4) won't start because it takes forever to uncrypt because of the swap.