[bug report] WARNING: block/blk-mq.c:321 at blk_mq_unquiesce_queue+0x93/0xb0 observed by blktests nvme/fc nvme/058

[Yi Zhang]

Hi

I found this issue with the latest linux-block/for-next. Please help
check it and let me know if you need any information or tests for it.
Thank you.

commit d678712ead7318d5650158aa00113f63ccd4e210
Merge: 95ed689e9f30 a0750fae73c5
Author: Jens Axboe <axboe at kernel.dk>
Date:   Wed Dec 10 13:41:17 2025 -0700

    Merge branch 'block-6.19' into for-next

    * block-6.19:
      blk-mq-dma: always initialize dma state

[13367.070880] run blktests nvme/058 at 2025-12-11 09:44:09
[13368.291045] nvme nvme7: NVME-FC{0}: create association : host wwpn
0x20001100aa000001  rport wwpn 0x20001100ab000001: NQN
"nqn.2014-08.org.nvmexpress.discovery"
[13368.309331] nvmet_fc: {0:0}: Association created
[13368.314356] nvmet: Created discovery controller 1 for subsystem
nqn.2014-08.org.nvmexpress.discovery for NQN
nqn.2014-08.org.nvmexpress:uuid:4c4c4544-0047-5a10-804b-cac04f514a33.
[13368.333710] nvme nvme7: NVME-FC{0}: controller connect complete
--snip--
[13377.364142] nvme nvme10: identifiers changed for nsid 3
[13377.364180] nvme nvme10: identifiers changed for nsid 2
[13377.366018] nvme nvme10: NVME-FC{3}: resetting controller
[13377.413250] nvme nvme12: Found shared namespace 1, but multipathing
not supported.
[13377.421051] nvme nvme9: Found shared namespace 1, but multipathing
not supported.
[13377.429122] nvme nvme9: IDs don't match for shared namespace 2
[13377.435247] nvme nvme10: Found shared namespace 1, but multipathing
not supported.
[13377.438649] ------------[ cut here ]------------
[13377.442996] nvme nvme12: IDs don't match for shared namespace 2
[13377.443116] nvme nvme10: Identify namespace failed (880)
[13377.447459] WARNING: block/blk-mq.c:321 at
blk_mq_unquiesce_queue+0x93/0xb0, CPU#4: kworker/u65:40/103352
[13377.447479] Modules linked in: nvme_fcloop nvmet_fc
[13377.453458] nvme nvme11: IDs don't match for shared namespace 2
[13377.458724]  nvmet nvme_fc nvme_fabrics nvme nvme_core
[13377.468369] nvme nvme12: Found shared namespace 3, but multipathing
not supported.
[13377.473178]  ext4 crc16 mbcache jbd2 platform_profile dell_wmi
dell_smbios intel_rapl_msr amd_atl sparse_keymap intel_rapl_common
rfkill video amd64_edac edac_mce_amd dcdbas kvm_amd vfat fat kvm
irqbypass mgag200 rapl ipmi_ssif dell_wmi_descriptor i2c_algo_bit
wmi_bmof pcspkr acpi_cpufreq i2c_piix4 ptdma i2c_smbus k10temp
acpi_power_meter ipmi_si acpi_ipmi ipmi_devintf ipmi_msghandler sg
loop fuse xfs sd_mod ahci libahci nvme_keyring tg3 ghash_clmulni_intel
libata nvme_auth ccp hkdf mpt3sas raid_class scsi_transport_sas
sp5100_tco wmi sunrpc dm_mirror dm_region_hash dm_log dm_mod nfnetlink
[last unloaded: nvmet]
[13377.492397]  nvme9n4: unable to read partition table
[13377.501340]  nvme12n4: unable to read partition table
[13377.510005] nvme nvme12: rescanning namespaces.
[13377.514737]  nvme11n4: unable to read partition table
[13377.520897] nvme nvme11: rescanning namespaces.
[13377.546199] CPU: 4 UID: 0 PID: 103352 Comm: kworker/u65:40 Kdump:
loaded Tainted: G             L      6.18.0+ #1 PREEMPT(voluntary)
[13377.546213] Tainted: [L]=SOFTLOCKUP
[13377.546217] Hardware name: Dell Inc. PowerEdge R6515/07PXPY, BIOS
2.17.0 12/04/2024
[13377.546224] Workqueue: nvme-reset-wq nvme_fc_reset_ctrl_work [nvme_fc]
[13377.555677] nvme nvme9: rescanning namespaces.
[13377.605978] RIP: 0010:blk_mq_unquiesce_queue+0x93/0xb0
[13377.611131] Code: 01 48 89 de bf 09 00 00 00 e8 39 3c fc ff 48 89
ee 4c 89 e7 e8 ee 1a 9a 01 48 89 df be 01 00 00 00 5b 5d 41 5c e9 1d
fa ff ff <0f> 0b 5b 48 89 ee 4c 89 e7 5d 41 5c e9 cc 1a 9a 01 e8 e7 84
99 ff
[13377.629885] RSP: 0018:ffffc9000c03fab8 EFLAGS: 00010046
[13377.635118] RAX: 0000000000000000 RBX: ffff888202a83d50 RCX: 0000000000000001
[13377.642251] RDX: 0000000000000000 RSI: ffffffff91b66900 RDI: ffff888202a83e70
[13377.649386] RBP: 0000000000000246 R08: 0000000000000001 R09: fffff52001807f46
[13377.656525] R10: 0000000000000003 R11: 00000000000003ad R12: ffff888202a83e28
[13377.663657] R13: ffff888265a71440 R14: ffff888178198048 R15: ffff888265a71418
[13377.670791] FS:  0000000000000000(0000) GS:ffff888889ec4000(0000)
knlGS:0000000000000000
[13377.678884] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[13377.684631] CR2: 00007fffa12a5688 CR3: 0000000245fa0000 CR4: 0000000000350ef0
[13377.691772] Call Trace:
[13377.694226]  <TASK>
[13377.696343]  blk_mq_unquiesce_tagset+0xe1/0x1c0
[13377.700884]  nvme_fc_delete_association+0x4e9/0x700 [nvme_fc]
[13377.706658]  ? __pfx_nvme_fc_delete_association+0x10/0x10 [nvme_fc]
[13377.712936]  ? __pfx_enable_work+0x10/0x10
[13377.717043]  ? __pfx_autoremove_wake_function+0x10/0x10
[13377.722288]  nvme_fc_reset_ctrl_work+0x2e/0x110 [nvme_fc]
[13377.727707]  process_one_work+0xd8b/0x1320
[13377.731821]  ? __pfx_process_one_work+0x10/0x10
[13377.736361]  ? srso_return_thunk+0x5/0x5f
[13377.740387]  ? srso_return_thunk+0x5/0x5f
[13377.744402]  ? assign_work+0x16c/0x240
[13377.748157]  ? srso_return_thunk+0x5/0x5f
[13377.752191]  worker_thread+0x5f3/0xfe0
[13377.752209]  ? __pfx_worker_thread+0x10/0x10
[13377.760238]  kthread+0x3b4/0x770
[13377.763479]  ? __pfx_do_raw_spin_trylock+0x10/0x10
[13377.768279]  ? srso_return_thunk+0x5/0x5f
[13377.772328]  ? __pfx_kthread+0x10/0x10
[13377.776087]  ? lock_acquire+0x10b/0x140
[13377.781313]  ? calculate_sigpending+0x3d/0x90
[13377.787059]  ? srso_return_thunk+0x5/0x5f
[13377.792457]  ? rcu_is_watching+0x15/0xb0
[13377.797770]  ? srso_return_thunk+0x5/0x5f
[13377.803170]  ? __pfx_kthread+0x10/0x10
[13377.808313]  ret_from_fork+0x4ce/0x710
[13377.813452]  ? __pfx_ret_from_fork+0x10/0x10
[13377.818503]  ? srso_return_thunk+0x5/0x5f
[13377.822521]  ? __switch_to+0x528/0xf50
[13377.826284]  ? __switch_to_asm+0x39/0x70
[13377.830220]  ? __pfx_kthread+0x10/0x10
[13377.833982]  ret_from_fork_asm+0x1a/0x30
[13377.837931]  </TASK>
[13377.840123] irq event stamp: 0
[13377.843183] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[13377.849457] hardirqs last disabled at (0): [<ffffffff8ecd5acb>]
copy_process+0x174b/0x5440
[13377.857725] softirqs last  enabled at (0): [<ffffffff8ecd5b23>]
copy_process+0x17a3/0x5440
[13377.865992] softirqs last disabled at (0): [<0000000000000000>] 0x0
[13377.872259] ---[ end trace 0000000000000000 ]---

-- 
Best Regards,
  Yi Zhang