From: Philippe Schenker > Sent: 03 May 2019 14:57 > In some cases, the wait_completion got interrupted. This caused the > error-handling to mutex_unlock the function. The before turned on > interrupt then got called anyway. In the ISR then completion() > was called causing problems. > > Making this wait_completion non interruptible solves the problem. Won't the same thing happen if the interrupt occurs just after the timeout? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)