Son and I building 30ft wall for new house construction with 2×6 sheeted with OSB. We successfully built my home some years back and seeking to build home for him. While we thought bottom plate was laid out straight, now we find wall has slight banana shape. All 2×6, window openings, headers, etc are framed and OSB just tacked in at the moment. Issue is when wall is raised, it will l8kely not sit flat on sub floor.
Our error of course but any tips or ideas how we can rectify short of removing all OSB sheeting? My son feels the weight of the house with roof etc will cause bottom plate to settle. Don’t know if this issue arises often but is big issue for us now. 
Any advice?