On Wed, Apr 11, 2018 at 01:55:25PM -0600, Bart Van Assche wrote: > On 04/11/18 13:00, Alexandru Moise wrote: > >But the root cause of it is in blkcg_init_queue() when blkg_create() returns > >an ERR ptr, because it tries to insert into a populated index into blkcg->blkg_tree, > >the entry that we fail to remove at __blk_release_queue(). > > Hello Alex, > > Had you considered something like the untested patch below? But queue init shouldn't fail here, right? Thanks. -- tejun