Re: BPF: unbounded bpf_map_free_deferred problem

2021-01-24 Thread Tetsuo Handa
On 2021/01/25 8:48, Alexey Kardashevskiy wrote: > > > On 23/01/2021 22:17, Tetsuo Handa wrote: >> On 2021/01/23 12:27, Cong Wang wrote: >>> On Fri, Jan 22, 2021 at 4:42 PM Tetsuo Handa >>> wrote: Hello, BPF developers. Alexey Kardashevskiy is reporting that system_wq gets stu

Re: BPF: unbounded bpf_map_free_deferred problem

2021-01-22 Thread Cong Wang
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

2021-01-22 Thread Tetsuo Handa
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_