Re: BPF: unbounded bpf_map_free_deferred problem

On Fri, Jan 22, 2021 at 4:42 PM Tetsuo Handa wrote: > > Hello, BPF developers. > > Alexey Kardashevskiy is reporting that system_wq gets stuck due to flooding of > unbounded bpf_map_free_deferred work. Use of WQ_MEM_RECLAIM | WQ_HIGHPRI | > WQ_UNBOUND > workqueue did not solve this problem. Is it

BPF: unbounded bpf_map_free_deferred problem

Hello, BPF developers. Alexey Kardashevskiy is reporting that system_wq gets stuck due to flooding of unbounded bpf_map_free_deferred work. Use of WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_UNBOUND workqueue did not solve this problem. Is it possible that a refcount leak somewhere preventing bpf_map_free_