A ground processing roller, in particular for a soil compactor, comprising: - a roller shell that can be rotated about a roller axis of rotation and surrounds a roller interior, - an unbalance arrangement with a plurality of unbalanced masses (30 1, 30 2) arranged at a circumferential distance from one another about the roller axis of rotation, wherein each unbalanced mass (30 1, 30 2) can be driven to rotate about an unbalance axis of rotation assigned to it, - an unbalance drive with an unbalance motor and an unbalance transmission system, wherein the unbalance transmission system comprises at least one drive gear (66, 94) that can be driven for rotation by the unbalance motor and, in assignment to each unbalanced mass (30 1, 30 2), a driven gear (68 1, 68 2) connected thereto for common rotation, wherein each drive gear (66, 94) is coupled to at least one driven gear (68 1, 68 2) for torque transmission, - a first lubricant sump arranged in a height direction below the roller axis of rotation, wherein the first lubricant sump is filled or fillable with lubricant up to a first lubricant sump level (N 1) which has a first distance (D 1) from the roller axis of rotation in the height direction, - a second lubricant sump arranged in a height direction below the roller axis of rotation, wherein the second lubricant sump is filled or fillable with lubricant up to a second lubricant sump level (N 2) which has a second distance (D 2) from the roller axis of rotation in the height direction, wherein the second distance (D 2) is smaller than the first distance (D 1), characterized by: - a lubricant conveying arrangement for conveying lubricant from the first lubricant sump into the second lubricant sump, - an overflow connection between the first lubricant sump and the second lubricant sump, wherein lubricant flows from the second lubricant sump via the overflow connection into the first lubricant sump in the conveying operation of the lubricant conveying arrangement when the second lubricant sump level (N 2) in the second lubricant sump is reached or/and exceeded. - a roller shell that can be rotated about a roller axis of rotation and surrounds a roller interior, - an unbalance arrangement with a plurality of unbalanced masses (30 1, 30 2) arranged at a circumferential distance from one another about the roller axis of rotation, wherein each unbalanced mass (30 1, 30 2) can be driven to rotate about an unbalance axis of rotation assigned to it, - an unbalance drive with an unbalance motor and an unbalance transmission system, wherein the unbalance transmission system comprises at least one drive gear (66, 94) that can be driven for rotation by the unbalance motor and, in assignment to each unbalanced mass (30 1, 30 2), a driven gear (68 1, 68 2) connected thereto for common rotation, wherein each drive gear (66, 94) is coupled to at least one driven gear (68 1, 68 2) for torque transmission, - a first lubricant sump arranged in a height direction below the roller axis of rotation, wherein the first lubricant sump is filled or fillable with lubricant up to a first lubricant sump level (N 1) which has a first distance (D 1) from the roller axis of rotation in the height direction, - a second lubricant sump arranged in a height direction below the roller axis of rotation, wherein the second lubricant sump is filled or fillable with lubricant up to a second lubricant sump level (N 2) which has a second distance (D 2) from the roller axis of rotation in the height direction, wherein the second distance (D 2) is smaller than the first distance (D 1), - a lubricant conveying arrangement for conveying lubricant from the first lubricant sump into the second lubricant sump, - an overflow connection between the first lubricant sump and the second lubricant sump, wherein lubricant flows from the second lubricant sump via the overflow connection into the first lubricant sump in the conveying operation of the lubricant conveying arrangement when the second lubricant sump level (N 2) in the second lubricant sump is reached or/and exceeded.