On 5/7/20 1:30 PM, Roman Kennke wrote: >> *) What's the point of this cast? >> >> 133 *const_cast<HeapWord**>(&_update_watermark) = w; > > Make access non-volatile. You think it's too much? I don't think that is relevant. As long as it is not the atomic store (with fences), we are fine. -- Thanks, -Aleksey