Hi folks, I recently started seeing spurious test failures with rbtree tests, resulting in boot delays and random "hung task" warnings. The problems have been fixed upstream with the following patches. v4.14.y: 0b548e33e6cb lib/rbtree-test: lower default params v4.4.y, v4.9.y: a54dae0338b7 lib/interval_tree_test.c: make test options module parameters c46ecce431eb lib/interval_tree_test.c: allow full tree search 223f8911eace lib/rbtree_test.c: make input module parameters 0b548e33e6cb lib/rbtree-test: lower default params The first three patches for v4.4.y and v4.9.y are the minimum set of context patches needed to avoid conflicts when applying commit 0b548e33e6cb. I tested all kernel versions with the patches applied and rbtree testing enabled to ensure that no new problems are introduced. Please consider applying those patches to the respective releases. Thanks, Guenter
