[poc] initial cd periph refcount: -1
[poc] round 0 burn 0: ioctl rc=-1 errno=4(Interrupted system call)  refcount=-1
[poc] round 0 burn 1: ioctl rc=-1 errno=4(Interrupted system call)  refcount=-2
[poc] round 0 burn 2: ioctl rc=-1 errno=4(Interrupted system call)  refcount=-3
RC=124