These logs are something I've not seen here in my testing. This shows that we are stuck doing an up_write() on root->rwsem in the anon_vma path. It looks like we are contending on the rwsem's sem->wait_lock. I don't have a reproduction of this issue, it will be interesting to examine what is causing the heavy contention
These logs are something I've not seen here in my testing. This shows that we are stuck doing an up_write() on root->rwsem in the anon_vma path. It looks like we are contending on the rwsem's sem->wait_lock. I don't have a reproduction of this issue, it will be interesting to examine what is causing the heavy contention