**System Information**
Operating system: Windows 10
Graphics card: GTX 1080Ti
**Blender Version**
Broken: 2.8 Beta
2019-01-07 91a155833e59
**Short description of error**version: 2.83 (sub 10), branch: master, commit date: 2020-03-19 11:11, hash: `rBcc516b82ef68`
Baking normal maps many times in the same file drastically increases memory consumption, to the point where a bake that takes seconds in a new file is enough to freeze my computer completely.Worked: Never (2.8+)
**Exact steps for others to reproduce the error**
1. Open the baking-bug file:
{F8332628}
2. Everything is set up, just click Bake. This will bake a simple beveled cube's normals to a regular cube.
This takes quite some time, and memory usage is through the roof. I've used a previous version of this file to bake over 100 high poly objects (door_high collection) to 15 subdivided low poly objects with cages (door_low collection) about 5 times each. Each time I hit Bake, Blender would take longer and use more memory. I've noticed this same behavior as far back as a year ago and never tracked it down, so I don't think it's anything new with 2.8.
3.{F8416474}
# Open file
# Press bake, Open the baking-perfect file for comparison, which has the exact same cubewatch memory usage
# Remove subsurf modifier on `door_frame_low.001` objects copied over to a fresh file:
{F6258059} and repeat step 2
4. Click Bake. This should be almost instantaneous. Baking is much quicker and doesn't require too much RAM