[bug report] sysfs: cannot create duplicate filename '/devices/virtual/nvme-subsystem'
Yi Zhang
yi.zhang at redhat.com
Tue Jun 10 06:22:41 PDT 2025
Hi
I reproduced this issue on the latest linux-block/for-next with
blktests nvme/fc nvme/061, please help check it and let me know if you
need any info/test, thanks.
commit: 38f4878b9463 (HEAD, origin/for-next) Merge branch 'block-6.16'
into for-next
[ 4810.793156] run blktests nvme/061 at 2025-06-10 08:52:48
[ 4811.164767] loop0: detected capacity change from 0 to 2097152
[ 4811.254997] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[ 4811.746222] nvme nvme0: NVME-FC{0}: create association : host wwpn
0x20001100aa000001 rport wwpn 0x20001100ab000001: NQN
"blktests-subsystem-1"
[ 4811.750328] (NULL device *): {0:0} Association created
[ 4811.751363] nvmet: Created nvm controller 1 for subsystem
blktests-subsystem-1 for NQN
nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349.
[ 4811.754969] sysfs: cannot create duplicate filename
'/devices/virtual/nvme-subsystem'
[ 4811.755435] CPU: 18 UID: 0 PID: 14937 Comm: kworker/u290:0 Tainted:
G W 6.15.0+ #1 PREEMPT(voluntary)
[ 4811.755451] Tainted: [W]=WARN
[ 4811.755455] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380
Gen9, BIOS P89 10/05/2016
[ 4811.755462] Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]
[ 4811.755495] Call Trace:
[ 4811.755500] <TASK>
[ 4811.755507] dump_stack_lvl+0xac/0xc0
[ 4811.755531] sysfs_warn_dup+0x72/0x90
[ 4811.755549] sysfs_create_dir_ns+0x1f2/0x260
[ 4811.755561] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 4811.755570] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4811.755591] ? kobject_add_internal+0x218/0x890
[ 4811.755605] ? do_raw_spin_unlock+0x55/0x1f0
[ 4811.755617] kobject_add_internal+0x272/0x890
[ 4811.755630] kobject_add+0x11f/0x1f0
[ 4811.755641] ? __pfx_kobject_add+0x10/0x10
[ 4811.755652] ? __kmalloc_cache_noprof+0x3b6/0x4e0
[ 4811.755667] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4811.755686] get_device_parent+0x325/0x430
[ 4811.755700] ? __pfx_klist_children_put+0x10/0x10
[ 4811.755717] device_add+0x203/0x10f0
[ 4811.755727] ? lockdep_init_map_type+0x51/0x270
[ 4811.755738] ? __pfx_device_add+0x10/0x10
[ 4811.755748] ? __init_waitqueue_head+0xcb/0x150
[ 4811.755768] nvme_init_subsystem+0xa5d/0x1470 [nvme_core]
[ 4811.755857] ? __pfx_nvme_identify_ctrl+0x10/0x10 [nvme_core]
[ 4811.755912] ? __pfx_nvme_init_subsystem+0x10/0x10 [nvme_core]
[ 4811.755965] ? blk_mq_run_hw_queue+0x35e/0x530
[ 4811.755986] ? rcu_is_watching+0x11/0xb0
[ 4811.756002] nvme_init_identify+0x21c/0x2290 [nvme_core]
[ 4811.756057] ? rcu_is_watching+0x11/0xb0
[ 4811.756064] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4811.756075] ? blk_mq_hw_queue_need_run+0x271/0x3a0
[ 4811.756084] ? rcu_is_watching+0x11/0xb0
[ 4811.756092] ? trace_irq_enable.constprop.0+0x14a/0x1b0
[ 4811.756107] ? rcu_is_watching+0x11/0xb0
[ 4811.756113] ? blk_mq_run_hw_queue+0x2e3/0x530
[ 4811.756121] ? percpu_ref_put_many.constprop.0+0x7b/0x1b0
[ 4811.756130] ? rcu_is_watching+0x11/0xb0
[ 4811.756138] ? __pfx_nvme_init_identify+0x10/0x10 [nvme_core]
[ 4811.756192] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4811.756201] ? __nvme_submit_sync_cmd+0x1e6/0x330 [nvme_core]
[ 4811.756255] ? nvmf_reg_read32+0xd1/0x1e0 [nvme_fabrics]
[ 4811.756276] ? __pfx_nvmf_reg_read32+0x10/0x10 [nvme_fabrics]
[ 4811.756291] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4811.756305] ? nvme_wait_ready+0x13f/0x2d0 [nvme_core]
[ 4811.756359] nvme_init_ctrl_finish+0x1c8/0x810 [nvme_core]
[ 4811.756414] ? __pfx_nvme_init_ctrl_finish+0x10/0x10 [nvme_core]
[ 4811.756472] ? nvme_enable_ctrl+0x3e6/0x620 [nvme_core]
[ 4811.756523] ? __pfx_nvme_enable_ctrl+0x10/0x10 [nvme_core]
[ 4811.756575] ? nvme_fc_connect_admin_queue.constprop.0+0xa1a/0xd20 [nvme_fc]
[ 4811.756596] nvme_fc_create_association+0x880/0x1b60 [nvme_fc]
[ 4811.756618] ? __pfx_debug_object_deactivate+0x10/0x10
[ 4811.756630] ? __pfx_nvme_fc_create_association+0x10/0x10 [nvme_fc]
[ 4811.756649] ? rcu_is_watching+0x11/0xb0
[ 4811.756660] nvme_fc_connect_ctrl_work+0x1d/0xb0 [nvme_fc]
[ 4811.756676] ? rcu_is_watching+0x11/0xb0
[ 4811.756684] process_one_work+0x8cd/0x1950
[ 4811.756704] ? __pfx_process_one_work+0x10/0x10
[ 4811.756720] ? assign_work+0x16c/0x240
[ 4811.756732] worker_thread+0x58d/0xcf0
[ 4811.756748] ? __pfx_worker_thread+0x10/0x10
[ 4811.756759] kthread+0x3d8/0x7a0
[ 4811.756770] ? __pfx_kthread+0x10/0x10
[ 4811.756781] ? rcu_is_watching+0x11/0xb0
[ 4811.756789] ? __pfx_kthread+0x10/0x10
[ 4811.756799] ret_from_fork+0x406/0x510
[ 4811.756810] ? __pfx_kthread+0x10/0x10
[ 4811.756819] ret_from_fork_asm+0x1a/0x30
[ 4811.756843] </TASK>
[ 4811.786652] kobject: kobject_add_internal failed for nvme-subsystem
with -EEXIST, don't try to register things with the same name in the
same directory.
[ 4811.787439] nvme nvme0: failed to register subsystem device.
[ 4811.788282] nvme nvme0: NVME-FC{0}: create_assoc failed, assoc_id
428489c9c100000 ret -17
[ 4811.788849] nvme nvme0: NVME-FC{0}: reset: Reconnect attempt failed (-17)
[ 4811.789259] nvme nvme0: NVME-FC{0}: Reconnect attempt in 1 seconds
[ 4811.790106] nvme nvme0: NVME-FC{0}: new ctrl: NQN
"blktests-subsystem-1", hostnqn:
nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349
[ 4811.819765] (NULL device *): {0:0} Association deleted
[ 4811.835407] (NULL device *): {0:0} Association freed
[ 4811.835791] (NULL device *): Disconnect LS failed: No Association
[ 4812.216419] nvme nvme1: NVME-FC{1}: create association : host wwpn
0x20001100aa000001 rport wwpn 0x20001100ab000001: NQN
"nqn.2014-08.org.nvmexpress.discovery"
[ 4812.220686] (NULL device *): {0:0} Association created
[ 4812.221710] nvmet: Created discovery controller 1 for subsystem
nqn.2014-08.org.nvmexpress.discovery for NQN
nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349.
[ 4812.225298] sysfs: cannot create duplicate filename
'/devices/virtual/nvme-subsystem'
[ 4812.225791] CPU: 3 UID: 0 PID: 10479 Comm: kworker/u289:13 Tainted:
G W 6.15.0+ #1 PREEMPT(voluntary)
[ 4812.225808] Tainted: [W]=WARN
[ 4812.225811] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380
Gen9, BIOS P89 10/05/2016
[ 4812.225817] Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]
[ 4812.225848] Call Trace:
[ 4812.225852] <TASK>
[ 4812.225859] dump_stack_lvl+0xac/0xc0
[ 4812.225880] sysfs_warn_dup+0x72/0x90
[ 4812.225896] sysfs_create_dir_ns+0x1f2/0x260
[ 4812.225908] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 4812.225918] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.225936] ? kobject_add_internal+0x218/0x890
[ 4812.225949] ? do_raw_spin_unlock+0x55/0x1f0
[ 4812.225962] kobject_add_internal+0x272/0x890
[ 4812.225975] kobject_add+0x11f/0x1f0
[ 4812.225986] ? __pfx_kobject_add+0x10/0x10
[ 4812.225997] ? __kmalloc_cache_noprof+0x3b6/0x4e0
[ 4812.226010] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.226029] get_device_parent+0x325/0x430
[ 4812.226042] ? __pfx_klist_children_put+0x10/0x10
[ 4812.226058] device_add+0x203/0x10f0
[ 4812.226067] ? lockdep_init_map_type+0x51/0x270
[ 4812.226079] ? __pfx_device_add+0x10/0x10
[ 4812.226089] ? __init_waitqueue_head+0xcb/0x150
[ 4812.226107] nvme_init_subsystem+0xa5d/0x1470 [nvme_core]
[ 4812.226191] ? __pfx_nvme_identify_ctrl+0x10/0x10 [nvme_core]
[ 4812.226245] ? __pfx_nvme_init_subsystem+0x10/0x10 [nvme_core]
[ 4812.226298] ? blk_mq_run_hw_queue+0x35e/0x530
[ 4812.226310] ? rcu_is_watching+0x11/0xb0
[ 4812.226325] nvme_init_identify+0x21c/0x2290 [nvme_core]
[ 4812.226380] ? rcu_is_watching+0x11/0xb0
[ 4812.226386] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.226398] ? blk_mq_hw_queue_need_run+0x271/0x3a0
[ 4812.226407] ? rcu_is_watching+0x11/0xb0
[ 4812.226414] ? trace_irq_enable.constprop.0+0x14a/0x1b0
[ 4812.226430] ? rcu_is_watching+0x11/0xb0
[ 4812.226436] ? blk_mq_run_hw_queue+0x2e3/0x530
[ 4812.226444] ? percpu_ref_put_many.constprop.0+0x7b/0x1b0
[ 4812.226452] ? rcu_is_watching+0x11/0xb0
[ 4812.226461] ? __pfx_nvme_init_identify+0x10/0x10 [nvme_core]
[ 4812.226514] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4812.226523] ? __nvme_submit_sync_cmd+0x1e6/0x330 [nvme_core]
[ 4812.226576] ? nvmf_reg_read32+0xd1/0x1e0 [nvme_fabrics]
[ 4812.226595] ? __pfx_nvmf_reg_read32+0x10/0x10 [nvme_fabrics]
[ 4812.226610] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4812.226623] ? nvme_wait_ready+0x13f/0x2d0 [nvme_core]
[ 4812.226677] nvme_init_ctrl_finish+0x1c8/0x810 [nvme_core]
[ 4812.226732] ? __pfx_nvme_init_ctrl_finish+0x10/0x10 [nvme_core]
[ 4812.226791] ? nvme_enable_ctrl+0x3e6/0x620 [nvme_core]
[ 4812.226842] ? __pfx_nvme_enable_ctrl+0x10/0x10 [nvme_core]
[ 4812.226893] ? nvme_fc_connect_admin_queue.constprop.0+0xa1a/0xd20 [nvme_fc]
[ 4812.226914] nvme_fc_create_association+0x880/0x1b60 [nvme_fc]
[ 4812.226936] ? __pfx_debug_object_deactivate+0x10/0x10
[ 4812.226949] ? __pfx_nvme_fc_create_association+0x10/0x10 [nvme_fc]
[ 4812.226968] ? rcu_is_watching+0x11/0xb0
[ 4812.226979] nvme_fc_connect_ctrl_work+0x1d/0xb0 [nvme_fc]
[ 4812.226995] ? rcu_is_watching+0x11/0xb0
[ 4812.227002] process_one_work+0x8cd/0x1950
[ 4812.227022] ? __pfx_process_one_work+0x10/0x10
[ 4812.227038] ? assign_work+0x16c/0x240
[ 4812.227050] worker_thread+0x58d/0xcf0
[ 4812.227066] ? __pfx_worker_thread+0x10/0x10
[ 4812.227077] kthread+0x3d8/0x7a0
[ 4812.227088] ? __pfx_kthread+0x10/0x10
[ 4812.227098] ? rcu_is_watching+0x11/0xb0
[ 4812.227107] ? __pfx_kthread+0x10/0x10
[ 4812.227117] ret_from_fork+0x406/0x510
[ 4812.227131] ? __pfx_kthread+0x10/0x10
[ 4812.227140] ret_from_fork_asm+0x1a/0x30
[ 4812.227163] </TASK>
[ 4812.256970] kobject: kobject_add_internal failed for nvme-subsystem
with -EEXIST, don't try to register things with the same name in the
same directory.
[ 4812.257789] nvme nvme1: failed to register subsystem device.
[ 4812.258585] nvme nvme1: NVME-FC{1}: create_assoc failed, assoc_id
5a306fd184770000 ret -17
[ 4812.259155] nvme nvme1: NVME-FC{1}: reset: Reconnect attempt failed (-17)
[ 4812.259560] nvme nvme1: NVME-FC{1}: Reconnect attempt in 2 seconds
[ 4812.260436] nvme nvme1: NVME-FC{1}: new ctrl: NQN
"nqn.2014-08.org.nvmexpress.discovery", hostnqn:
nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349
[ 4812.281759] (NULL device *): {0:0} Association deleted
[ 4812.301381] (NULL device *): {0:0} Association freed
[ 4812.301771] (NULL device *): Disconnect LS failed: No Association
[ 4812.823776] nvme nvme0: NVME-FC{0}: create association : host wwpn
0x20001100aa000001 rport wwpn 0x20001100ab000001: NQN
"blktests-subsystem-1"
[ 4812.827820] (NULL device *): {0:0} Association created
[ 4812.828831] nvmet: Created nvm controller 1 for subsystem
blktests-subsystem-1 for NQN
nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349.
[ 4812.832443] sysfs: cannot create duplicate filename
'/devices/virtual/nvme-subsystem'
[ 4812.832925] CPU: 18 UID: 0 PID: 14937 Comm: kworker/u290:0 Tainted:
G W 6.15.0+ #1 PREEMPT(voluntary)
[ 4812.832941] Tainted: [W]=WARN
[ 4812.832945] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380
Gen9, BIOS P89 10/05/2016
[ 4812.832951] Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]
[ 4812.832980] Call Trace:
[ 4812.832985] <TASK>
[ 4812.832992] dump_stack_lvl+0xac/0xc0
[ 4812.833011] sysfs_warn_dup+0x72/0x90
[ 4812.833026] sysfs_create_dir_ns+0x1f2/0x260
[ 4812.833039] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 4812.833048] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.833064] ? kobject_add_internal+0x218/0x890
[ 4812.833077] ? do_raw_spin_unlock+0x55/0x1f0
[ 4812.833089] kobject_add_internal+0x272/0x890
[ 4812.833103] kobject_add+0x11f/0x1f0
[ 4812.833113] ? __pfx_kobject_add+0x10/0x10
[ 4812.833124] ? __kmalloc_cache_noprof+0x3b6/0x4e0
[ 4812.833137] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.833156] get_device_parent+0x325/0x430
[ 4812.833168] ? __pfx_klist_children_put+0x10/0x10
[ 4812.833183] device_add+0x203/0x10f0
[ 4812.833193] ? lockdep_init_map_type+0x51/0x270
[ 4812.833205] ? __pfx_device_add+0x10/0x10
[ 4812.833215] ? __init_waitqueue_head+0xcb/0x150
[ 4812.833232] nvme_init_subsystem+0xa5d/0x1470 [nvme_core]
[ 4812.833308] ? __pfx_nvme_identify_ctrl+0x10/0x10 [nvme_core]
[ 4812.833363] ? __pfx_nvme_init_subsystem+0x10/0x10 [nvme_core]
[ 4812.833416] ? blk_mq_run_hw_queue+0x35e/0x530
[ 4812.833427] ? rcu_is_watching+0x11/0xb0
[ 4812.833440] nvme_init_identify+0x21c/0x2290 [nvme_core]
[ 4812.833495] ? rcu_is_watching+0x11/0xb0
[ 4812.833502] ? __pfx_do_raw_spin_trylock+0x10/0x10
[ 4812.833514] ? blk_mq_hw_queue_need_run+0x271/0x3a0
[ 4812.833523] ? rcu_is_watching+0x11/0xb0
[ 4812.833530] ? trace_irq_enable.constprop.0+0x14a/0x1b0
[ 4812.833545] ? rcu_is_watching+0x11/0xb0
[ 4812.833551] ? blk_mq_run_hw_queue+0x2e3/0x530
[ 4812.833559] ? percpu_ref_put_many.constprop.0+0x7b/0x1b0
[ 4812.833567] ? rcu_is_watching+0x11/0xb0
[ 4812.833575] ? __pfx_nvme_init_identify+0x10/0x10 [nvme_core]
[ 4812.833629] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4812.833638] ? __nvme_submit_sync_cmd+0x1e6/0x330 [nvme_core]
[ 4812.833692] ? nvmf_reg_read32+0xd1/0x1e0 [nvme_fabrics]
[ 4812.833711] ? __pfx_nvmf_reg_read32+0x10/0x10 [nvme_fabrics]
[ 4812.833725] ? percpu_ref_put_many.constprop.0+0x80/0x1b0
[ 4812.833739] ? nvme_wait_ready+0x13f/0x2d0 [nvme_core]
[ 4812.833793] nvme_init_ctrl_finish+0x1c8/0x810 [nvme_core]
[ 4812.833848] ? __pfx_nvme_init_ctrl_finish+0x10/0x10 [nvme_core]
[ 4812.833906] ? nvme_enable_ctrl+0x3e6/0x620 [nvme_core]
[ 4812.833958] ? __pfx_nvme_enable_ctrl+0x10/0x10 [nvme_core]
[ 4812.834009] ? nvme_fc_connect_admin_queue.constprop.0+0xa1a/0xd20 [nvme_fc]
[ 4812.834030] nvme_fc_create_association+0x880/0x1b60 [nvme_fc]
[ 4812.834052] ? __pfx_debug_object_deactivate+0x10/0x10
[ 4812.834064] ? __pfx_nvme_fc_create_association+0x10/0x10 [nvme_fc]
[ 4812.834083] ? rcu_is_watching+0x11/0xb0
[ 4812.834094] nvme_fc_connect_ctrl_work+0x1d/0xb0 [nvme_fc]
[ 4812.834110] ? rcu_is_watching+0x11/0xb0
[ 4812.834117] process_one_work+0x8cd/0x1950
[ 4812.834137] ? __pfx_process_one_work+0x10/0x10
[ 4812.834154] ? assign_work+0x16c/0x240
[ 4812.834165] worker_thread+0x58d/0xcf0
[ 4812.834182] ? __pfx_worker_thread+0x10/0x10
[ 4812.834193] kthread+0x3d8/0x7a0
[ 4812.834204] ? __pfx_kthread+0x10/0x10
[ 4812.834215] ? rcu_is_watching+0x11/0xb0
[ 4812.834223] ? __pfx_kthread+0x10/0x10
[ 4812.834233] ret_from_fork+0x406/0x510
[ 4812.834245] ? __pfx_kthread+0x10/0x10
[ 4812.834255] ret_from_fork_asm+0x1a/0x30
[ 4812.834277] </TASK>
[ 4812.862781] kobject: kobject_add_internal failed for nvme-subsystem
with -EEXIST, don't try to register things with the same name in the
same directory.
[ 4812.863540] nvme nvme0: failed to register subsystem device.
[ 4812.864338] nvme nvme0: NVME-FC{0}: create_assoc failed, assoc_id
d8c1d294d6f70000 ret -17
[ 4812.864873] nvme nvme0: NVME-FC{0}: reset: Reconnect attempt failed (-17)
[ 4812.865226] nvme nvme0: NVME-FC{0}: Reconnect attempt in 1 seconds
[ 4812.879761] (NULL device *): {0:0} Association deleted
[ 4812.896413] (NULL device *): {0:0} Association freed
[ 4812.896821] (NULL device *): Disconnect LS failed: No Association
[ 4813.911770] nvme nvme0: NVME-FC{0}: create association : host wwpn
0x20001100aa000001 rport wwpn 0x20001100ab000001: NQN
"blktests-subsystem-1"
[ 4813.916771] (NULL device *): {0:0} Association created
--
Best Regards,
Yi Zhang
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