RTOS library updates for ChibiOS/RT, FreeRTOS, and NilRTOS

I have posted new versions of the following RTOS libraries on GitHub.

ChibiOS/RT version 2.6.5 https://github.com/greiman/ChibiOS-Arduino.

FreeRTOS version 8.0.1 https://github.com/greiman/FreeRTOS-Arduino.

NilRTOS slight update to original version 0.0.1 https://github.com/greiman/NilRTOS-Arduino.

I am following work on ChibiOS version 3.0. Version 3.0 will include many new features and NilRTOS will be more compatible with ChibiOS.

I can't get nilrtos working with malloc.. Even with one small task on 128b allocated, malloc always returns NULL. What is that i am doing wrong?

I've tried to delete malloc.c in \Arduino\hardware\arduino\cores\arduino\avr-libc\malloc.c and it actually seems to fix it, but it seems wierd. Can you help me out?