I’m using the V4.2.0 ARM7_LPC2000 port of the FreeRTOS and am now getting the dabort irq on the first call to portSAVE_CONTEXT. Previously I did not have this problem but I think I have changed something. I am using source code control but reverting to a previous commit doesn’t seem to help. I have been trying to work this out for a while now and have been browsing the forums for similar problems but have had no luck. Does anyone have any ideas to what I have done? Thanks in advance.