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X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Greetings! We're using nvme-cli technology with ZFS and Lustre Filesystem on top of it. But we constantly come across a kernel error while disconnecting remote disks from switched off nodes: ``` [ +0,000089] INFO: task kworker/u593:0:82293 blocked for more than 120 seconds. [ +0,001959] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0,001941] kworker/u593:0 D ffff90e8493fe2a0 0 82293 2 0x00000080 [ +0,000031] Workqueue: nvme-delete-wq nvme_delete_ctrl_work [nvme_core] [ +0,000003] Call Trace: [ +0,000008] [] schedule+0x29/0x70 [ +0,000010] [] blk_mq_freeze_queue_wait+0x75/0xe0 [ +0,000007] [] ? wake_up_atomic_t+0x30/0x30 [ +0,000006] [] blk_freeze_queue+0x24/0x50 [ +0,000009] [] blk_cleanup_queue+0x7f/0x1b0 [ +0,000012] [] nvme_ns_remove+0x8e/0xb0 [nvme_core] [ +0,000011] [] nvme_remove_namespaces+0xab/0xf0 [nvme_core] [ +0,000012] [] nvme_delete_ctrl_work+0x52/0x80 [nvme_core] [ +0,000008] [] process_one_work+0x17f/0x440 [ +0,000006] [] worker_thread+0x278/0x3c0 [ +0,000006] [] ? manage_workers.isra.26+0x2a0/0x2a0 [ +0,000005] [] kthread+0xd1/0xe0 [ +0,000006] [] ? insert_kthread_work+0x40/0x40 [ +0,000006] [] ret_from_fork_nospec_begin+0x7/0x21 [ +0,000006] [] ? insert_kthread_work+0x40/0x40 ``` Nodes characteristics: [root@s02p005 ~]# uname -srm Linux 3.10.0-1062.1.1.el7.x86_64 x86_64 [root@s02p005 ~]# cat /etc/redhat-release CentOS Linux release 7.7.1908 (Core) Where're using nvmet_rdma. Is there any workaround for such error? Best Regards, Anton Brekhov. _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme