diff --git a/test/test_linearizer_failures.py b/test/test_linearizer_failures.py
index aa649a0d1b..63de3a1539 100644
--- a/test/test_linearizer_failures.py
+++ b/test/test_linearizer_failures.py
@@ -172,5 +172,10 @@ class TestLinearizerFailures(unittest.TestCase):
     # LLVM: RuntimeError: PHINode should have one entry for each predecessor of its parent basic block!
     helper_test_lin(Linearizer(ast), opts, failed_platforms=["LLVM"])
 
+  def test_failure_22(self):
+    ast = LazyOp(op=BufferOps.STORE, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=0.000244140625, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),)))), LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=UnaryOps.NEG, src=(LazyOp(op=BinaryOps.DIV, src=(LazyOp(op=ReduceOps.SUM, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BinaryOps.SUB, src=(LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BinaryOps.SUB, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=1, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True),)))), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=2, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=3, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=4, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=5, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=6, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=7, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(32, 96, 8, 16), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=8, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=9, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=10, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=11, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=12, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=13, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=14, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=15, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 8640, 180, 18, 1), offset=19, mask=((1, 2), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True))))), LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=16, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(2, 32, 48, 8, 16), strides=(0, 17280, 180, 18, 1), offset=19, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(2, 32, 48, 8, 16), strides=(0, 12288, 128, 16, 1), offset=0, mask=((0, 1), (0, 32), (0, 48), (0, 8), (0, 16)), contiguous=False), View(shape=(1536, 2, 128), strides=(128, 196608, 1), offset=0, mask=None, contiguous=False), View(shape=(32, 96, 8, 16), strides=(12288, 128, 16, 1), offset=0, mask=None, contiguous=True)))))), arg=None)), arg=None)), arg=None)), arg=None)), arg=None)), arg=None)), arg=None)), arg=None)), arg=None),), arg=(0, 2, 3)), LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=17, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=True),)))), LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=2.0, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None)), arg=None),), arg=None), LazyOp(op=BinaryOps.DIV, src=(LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=1.0, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),)))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=18, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=True),)))), LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=0.000244140625, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=1e-05, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None)), arg=None)), arg=None), LazyOp(op=BinaryOps.DIV, src=(LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=1.0, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),)))), LazyOp(op=BinaryOps.ADD, src=(LazyOp(op=BinaryOps.MUL, src=(LazyOp(op=BufferOps.LOAD, src=(), arg=MemBuffer(idx=18, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=True),)))), LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=0.000244140625, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None), LazyOp(op=BufferOps.CONST, src=(), arg=ConstBuffer(val=1e-05, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 0, 0, 0), offset=0, mask=None, contiguous=False),))))), arg=None)), arg=None)), arg=None)), arg=None),), arg=MemBuffer(idx=0, dtype=dtypes.float, st=ShapeTracker(views=(View(shape=(1, 96, 1, 1), strides=(0, 1, 0, 0), offset=0, mask=None, contiguous=True),))))
+    opts = []
+    helper_test_lin(Linearizer(ast), opts, failed_platforms=[])
+
 if __name__ == '__main__':
   unittest.main()
diff --git a/tinygrad/features/search.py b/tinygrad/features/search.py
index 6d02f8ad1f..6d8e6a96b2 100644
--- a/tinygrad/features/search.py
+++ b/tinygrad/features/search.py
@@ -71,6 +71,7 @@ def bufs_from_lin(lin:Linearizer) -> List[Buffer]:
   rawbufs:List[Optional[Buffer]] = [None]*len(bufsts)
   for k,lx in bufsts.items():
     buf_size = prod(lx[0].dtype.shape) if isinstance(lx[0].dtype, ImageDType) else max(y.st.real_size() for y in lx)
+    if buf_size == 0: buf_size = 1  # create a size 1 buffer if no cell is accessed in kernel. # TODO: remove from kernel input in this case.
     rawbufs[k] = Buffer(lin.opts.device, buf_size, lx[0].dtype)
   assert all(r is not None for r in rawbufs)
   return cast(List[Buffer], rawbufs)
diff --git a/tinygrad/shape/shapetracker.py b/tinygrad/shape/shapetracker.py
index 640715186f..4a3c37ca0c 100644
--- a/tinygrad/shape/shapetracker.py
+++ b/tinygrad/shape/shapetracker.py
@@ -42,7 +42,10 @@ class ShapeTracker:
 
   def real_size(self) -> int:
     if 0 in self.shape: return 0
-    ret = self.expr_idxs()[0].max
+    idx, valid = self.expr_idxs()
+    if not valid: return 0
+    # TODO: it's possible that the real_size is smaller condition on valid being true
+    ret = idx.max
     if not isinstance(ret, int): ret = ret.max  # might be represent by symbolic shape, take one more max for int max
     assert isinstance(ret, int), f"ret must be integer, {ret=} isn't"
     return ret+1