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| author | Chengchang Tang <tangchengchang@huawei.com> | 2026-01-04 14:40:54 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-01-04 10:09:51 -0500 |
| commit | c0a26bbd3f99b7b03f072e3409aff4e6ec8af6f6 (patch) | |
| tree | 0666bb4c04b2f9c9ed874de11670a6d526f2a5e3 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | ddd6c8c873e912cb1ead79def54de5e24ff71c80 (diff) | |
| download | linux-c0a26bbd3f99b7b03f072e3409aff4e6ec8af6f6.tar.gz linux-c0a26bbd3f99b7b03f072e3409aff4e6ec8af6f6.zip | |
RDMA/hns: Fix WQ_MEM_RECLAIM warning
When sunrpc is used, if a reset triggered, our wq may lead the
following trace:
workqueue: WQ_MEM_RECLAIM xprtiod:xprt_rdma_connect_worker [rpcrdma]
is flushing !WQ_MEM_RECLAIM hns_roce_irq_workq:flush_work_handle
[hns_roce_hw_v2]
WARNING: CPU: 0 PID: 8250 at kernel/workqueue.c:2644 check_flush_dependency+0xe0/0x144
Call trace:
check_flush_dependency+0xe0/0x144
start_flush_work.constprop.0+0x1d0/0x2f0
__flush_work.isra.0+0x40/0xb0
flush_work+0x14/0x30
hns_roce_v2_destroy_qp+0xac/0x1e0 [hns_roce_hw_v2]
ib_destroy_qp_user+0x9c/0x2b4
rdma_destroy_qp+0x34/0xb0
rpcrdma_ep_destroy+0x28/0xcc [rpcrdma]
rpcrdma_ep_put+0x74/0xb4 [rpcrdma]
rpcrdma_xprt_disconnect+0x1d8/0x260 [rpcrdma]
xprt_rdma_connect_worker+0xc0/0x120 [rpcrdma]
process_one_work+0x1cc/0x4d0
worker_thread+0x154/0x414
kthread+0x104/0x144
ret_from_fork+0x10/0x18
Since QP destruction frees memory, this wq should have the WQ_MEM_RECLAIM.
Fixes: ffd541d45726 ("RDMA/hns: Add the workqueue framework for flush cqe handler")
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://patch.msgid.link/20260104064057.1582216-2-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions