16/10/2020 11:28, wangyunjian: > From: Yunjian Wang <wangyunj...@huawei.com> > > Currently, a issue that a container has many devices and the > application will map the same memory many times. The kernel > driver returns EEXIST as long as there are overlapping memory > areas. As a result, we repeatedly create new user mem map entry > for the same memory segment and this will lead to no more space > for other user mem maps. > > To resolve the issue, add support to remove the same entry in > the function compact_user_maps().
Sorry I don't understand the explanations above. Anatoly, please could you help in rewording?