On Mon, May 29, 2023 at 05:12:33PM +0200, Maurizio Lombardi wrote: > út 23. 5. 2023 v 20:28 odesílatel Leon Romanovsky <leon@xxxxxxxxxx> napsal: > > > workqueue: WQ_MEM_RECLAIM nvme-wq:nvme_rdma_reconnect_ctrl_work > > > [nvme_rdma] is flushing !WQ_MEM_RECLAIM ib_addr:process_one_req [ib_core] > > > > And why does nvme-wq need WQ_MEM_RECLAIM flag? I wonder if it is really > > needed. > > Adding Sagi Grimberg to cc, he probably knows and can explain it better than me. We already allocate so much memory on these paths it is pretty nonsense to claim they are a reclaim context. One allocation on the WQ is not going to be the problem. Probably this nvme stuff should not be re-using a reclaim marke dWQ for memory allocating work like this, it is kind of nonsensical. Jason
