* blktests failures with v7.2-rc1 kernel
@ 2026-07-06 0:10 Shin'ichiro Kawasaki
0 siblings, 0 replies; only message in thread
From: Shin'ichiro Kawasaki @ 2026-07-06 0:10 UTC (permalink / raw)
To: linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-scsi@vger.kernel.org, nbd, linux-rdma
Hi all,
I ran the latest blktests (git hash: 34941855abbf) with the v7.2-rc1 kernel. I
observed 6 failures listed below. Comparing with the previous report for the
v7.1 kernel [1], 4 failures are no longer observed (nvme/005, nvme/060, nvme/061
fc transport and nbd/002), and 1 failure is new (nvme/033,036,037). Your help
with fixes will be appreciated as always.
[1] https://lore.kernel.org/linux-block/ajtk1CaN1pBreS4O@shinmob/
List of failures
================
#1: block/005
#2: nvme/033,036,037 (new)
#3: nvme/058 (fc transport)(kmemleak)
#4: nvme/061 (rdma transport, siw driver)(kmemleak)
#5: nvme/062 (tcp transport)
#6: nvme/063 (tcp transport)
Failure description
===================
#1: block/005
The test case block/005 failed under some conditions due to concurrent
writes to a sysfs IO scheduler attribute. A fix patch candidate is
available [2].
[2] https://lore.kernel.org/linux-block/20260626004221.711326-1-shinichiro.kawasaki@wdc.com/
#2: nvme/033,036,037 (new)
The test cases nvme/033, 036 and 037 failed when TEST_DEV specifies a NVMe
device with metadata. The failure was triggered by the kernel commit
c8cdecdb47d3 ("nvme: core: reject invalid LBA data size from Identify
Namespace"). After the commit, NVMEoF target passthru no longer makes block
device available for namespaces with metadata. Assuming this kernel behavior
change is expected, I prepared a blktests side patch to avoid the failures
[3].
[3] https://lore.kernel.org/linux-nvme/20260630113714.848831-1-shinichiro.kawasaki@wdc.com/
#3: nvme/058 (fc transport)(kmemleak)
When the kernel enables CONFIG_DEBUG_KMEMLEAK, the test case sometimes
causes kmemleak. The memory leak report with v7.2-rc1 kernel looks similar
to those I reported for v7.0-rc1 kernel [4].
[4] https://lore.kernel.org/linux-block/aZ_-cH8euZLySxdD@shinmob/
#4: nvme/061 (rdma transport, siw driver)(kmemleak)
When the test case nvme/061 is repeated twice for the rdma transport and the
siw driver on the kernel with CONFIG_DEBUG_KMEMLEAK enabled, it causes
kmemleak that is detected at the beginning of the 2nd run. A fix candidiate
series is posted [5].
[5] https://lore.kernel.org/linux-nvme/20260629051529.810925-1-shinichiro.kawasaki@wdc.com/
#5: nvme/062 (tcp transport)
The test case nvme/062 fails for tcp transport due to the lockdep WARN
related to the three locks root->kernfs_rwsem, sparse_irq_lock and
root->kernfs_supers_rwsem [6]. The same failure symptom was also observed
with v7.1 with a fix patch [1].
This test case failed with another similar symptom with v7.1 kernel as
reported [1], and a fix discussion is ongoing [7].
[7] https://lore.kernel.org/linux-nvme/cover.1782436781.git.liuxixin@kylinos.cn/
#6: nvme/063 (tcp transport)
The test case nvme/063 fails for tcp transport due to the lockdep WARN
related to the three locks set->srcu, q->q_usage_counter(io) and
q->elevator_lock. Refer to [1] for the details of the failure.
[6] nvme/062 dmesg with tcp transport
[ 63.220556] [ T1033] run blktests nvme/062 at 2026-07-05 17:24:37
[ 63.483614] [ T1144] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[ 63.525274] [ T1147] nvmet: Allow non-TLS connections while TLS1.3 is enabled
[ 63.539092] [ T1150] nvmet_tcp: enabling port 0 (127.0.0.1:4420)
[ 63.684385] [ T327] nvmet: Created nvm controller 1 for subsystem blktests-subsystem-1 for NQN nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349.
[ 63.696587] [ T1157] nvme nvme5: creating 4 I/O queues.
[ 63.704345] [ T1157] nvme nvme5: mapped 4/0/0 default/read/poll queues.
[ 63.721305] [ T1157] nvme nvme5: new ctrl: NQN "blktests-subsystem-1", addr 127.0.0.1:4420, hostnqn: nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349
[ 64.282423] [ T1211] nvme nvme5: Removing ctrl: NQN "blktests-subsystem-1"
[ 64.853510] [ T327] nvmet: Created nvm controller 1 for subsystem blktests-subsystem-1 for NQN nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349, TLS.
[ 64.861282] [ T1218] nvme nvme5: creating 4 I/O queues.
[ 64.919781] [ T1218] nvme nvme5: mapped 4/0/0 default/read/poll queues.
[ 64.941335] [ T1218] nvme nvme5: new ctrl: NQN "blktests-subsystem-1", addr 127.0.0.1:4420, hostnqn: nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349
[ 65.502530] [ T1289] nvme nvme5: Removing ctrl: NQN "blktests-subsystem-1"
[ 65.873248] [ T1302] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[ 65.935059] [ T1308] nvmet_tcp: enabling port 0 (127.0.0.1:4420)
[ 66.128024] [ T1315] nvme_tcp: queue 0: failed to receive icresp, error -104
[ 66.134922] [ T1315] ======================================================
[ 66.135319] [ T1315] WARNING: possible circular locking dependency detected
[ 66.135756] [ T1315] 7.2.0-rc1 #14 Not tainted
[ 66.136089] [ T1315] ------------------------------------------------------
[ 66.136506] [ T1315] nvme/1315 is trying to acquire lock:
[ 66.136826] [ T1315] ffff88810092b180 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x53/0x160
[ 66.137495] [ T1315]
but task is already holding lock:
[ 66.137997] [ T1315] ffff88810092b2a0 (&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x4b/0x160
[ 66.138597] [ T1315]
which lock already depends on the new lock.
[ 66.139232] [ T1315]
the existing dependency chain (in reverse order) is:
[ 66.139794] [ T1315]
-> #9 (&root->kernfs_supers_rwsem){++++}-{4:4}:
[ 66.140329] [ T1315] down_read+0xa6/0x540
[ 66.140624] [ T1315] kernfs_remove_by_name_ns+0x4b/0x160
[ 66.140989] [ T1315] remove_files+0x8d/0x1b0
[ 66.141849] [ T1315] sysfs_remove_group+0x78/0x170
[ 66.142749] [ T1315] sysfs_remove_groups+0x63/0xd0
[ 66.143640] [ T1315] __kobject_del+0x7d/0x1e0
[ 66.144513] [ T1315] kobject_del+0x34/0x60
[ 66.145332] [ T1315] free_desc+0x23a/0x2a0
[ 66.146148] [ T1315] irq_free_descs+0x4d/0x70
[ 66.146984] [ T1315] msi_domain_free_locked.part.0+0x492/0x690
[ 66.147900] [ T1315] msi_domain_free_irqs_all_locked+0xe9/0x140
[ 66.148826] [ T1315] pci_free_msi_irqs+0x12/0x90
[ 66.149837] [ T1315] pci_disable_msix+0xab/0xf0
[ 66.150808] [ T1315] pci_free_irq_vectors+0x12/0xd0
[ 66.151775] [ T1315] nvme_setup_io_queues+0x5d6/0x16c0 [nvme]
[ 66.152802] [ T1315] nvme_probe.cold+0x30f/0x65a [nvme]
[ 66.153809] [ T1315] local_pci_probe+0xdf/0x190
[ 66.154710] [ T1315] pci_call_probe+0x160/0x6d0
[ 66.155656] [ T1315] pci_device_probe+0x179/0x2f0
[ 66.156557] [ T1315] really_probe+0x1ed/0x900
[ 66.157365] [ T1315] __driver_probe_device+0x1af/0x400
[ 66.158182] [ T1315] driver_probe_device+0x4a/0xd0
[ 66.158996] [ T1315] __driver_attach_async_helper+0x10b/0x280
[ 66.159849] [ T1315] async_run_entry_fn+0x93/0x550
[ 66.160653] [ T1315] process_one_work+0x8b6/0x15e0
[ 66.161436] [ T1315] worker_thread+0x5fd/0xfe0
[ 66.162191] [ T1315] kthread+0x36a/0x460
[ 66.162902] [ T1315] ret_from_fork+0x655/0x9d0
[ 66.163636] [ T1315] ret_from_fork_asm+0x1a/0x30
[ 66.164381] [ T1315]
-> #8 (sparse_irq_lock){+.+.}-{4:4}:
[ 66.165611] [ T1315] __mutex_lock+0x1ae/0x2510
[ 66.166330] [ T1315] cpuhp_bringup_ap+0x52/0x950
[ 66.167053] [ T1315] cpuhp_invoke_callback+0x2c5/0x11f0
[ 66.167833] [ T1315] __cpuhp_invoke_callback_range+0xb6/0x1e0
[ 66.168651] [ T1315] _cpu_up+0x2eb/0x6d0
[ 66.169355] [ T1315] cpu_up+0x111/0x190
[ 66.170017] [ T1315] cpuhp_bringup_mask+0xd3/0x110
[ 66.170787] [ T1315] smp_init+0x27/0xe0
[ 66.171556] [ T1315] kernel_init_freeable+0x442/0x710
[ 66.172363] [ T1315] kernel_init+0x18/0x150
[ 66.173036] [ T1315] ret_from_fork+0x655/0x9d0
[ 66.173754] [ T1315] ret_from_fork_asm+0x1a/0x30
[ 66.174454] [ T1315]
-> #7 (cpu_hotplug_lock){++++}-{0:0}:
[ 66.175644] [ T1315] cpus_read_lock+0x3c/0xe0
[ 66.176327] [ T1315] static_key_disable+0x12/0x30
[ 66.176988] [ T1315] inet_hash+0xf3/0xd00
[ 66.177628] [ T1315] inet_csk_listen_start+0x350/0x440
[ 66.178345] [ T1315] __inet_listen_sk+0x191/0x650
[ 66.178989] [ T1315] inet_listen+0x9a/0xe0
[ 66.179612] [ T1315] __sys_listen+0x85/0x100
[ 66.180266] [ T1315] __x64_sys_listen+0x4e/0x90
[ 66.180909] [ T1315] do_syscall_64+0xdf/0x790
[ 66.181583] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.182334] [ T1315]
-> #6 (sk_lock-AF_INET){+.+.}-{0:0}:
[ 66.183509] [ T1315] lock_sock_nested+0x32/0xf0
[ 66.184200] [ T1315] tls_sw_sendmsg+0x1ba/0x2a50 [tls]
[ 66.184987] [ T1315] sock_sendmsg+0x31c/0x3f0
[ 66.185725] [ T1315] nvmet_tcp_try_recv_pdu+0x14e3/0x1ce0 [nvmet_tcp]
[ 66.186646] [ T1315] nvmet_tcp_io_work+0x122/0x2420 [nvmet_tcp]
[ 66.187507] [ T1315] process_one_work+0x8b6/0x15e0
[ 66.188285] [ T1315] worker_thread+0x5fd/0xfe0
[ 66.189029] [ T1315] kthread+0x36a/0x460
[ 66.189800] [ T1315] ret_from_fork+0x655/0x9d0
[ 66.190561] [ T1315] ret_from_fork_asm+0x1a/0x30
[ 66.191288] [ T1315]
-> #5 (&ctx->tx_lock){+.+.}-{4:4}:
[ 66.192530] [ T1315] __mutex_lock+0x1ae/0x2510
[ 66.193218] [ T1315] tls_sw_sendmsg+0x12e/0x2a50 [tls]
[ 66.193921] [ T1315] sock_sendmsg+0x31c/0x3f0
[ 66.194585] [ T1315] nvme_tcp_try_send_cmd_pdu+0x60e/0xcc0 [nvme_tcp]
[ 66.195394] [ T1315] nvme_tcp_try_send+0x1ef/0xa60 [nvme_tcp]
[ 66.196145] [ T1315] nvme_tcp_queue_rq+0xfa3/0x19e0 [nvme_tcp]
[ 66.196894] [ T1315] blk_mq_dispatch_rq_list+0x3e0/0x2400
[ 66.197614] [ T1315] __blk_mq_sched_dispatch_requests+0x20a/0x15d0
[ 66.198407] [ T1315] blk_mq_sched_dispatch_requests+0xab/0x150
[ 66.199170] [ T1315] blk_mq_run_hw_queue+0x1d9/0x590
[ 66.199885] [ T1315] blk_execute_rq+0x189/0x390
[ 66.200574] [ T1315] __nvme_submit_sync_cmd+0x104/0x320 [nvme_core]
[ 66.201411] [ T1315] nvmf_connect_io_queue+0x1fa/0x320 [nvme_fabrics]
[ 66.202251] [ T1315] nvme_tcp_start_queue+0x7bf/0xc20 [nvme_tcp]
[ 66.203030] [ T1315] nvme_tcp_setup_ctrl.cold+0x6ed/0xd2d [nvme_tcp]
[ 66.203909] [ T1315] nvme_tcp_create_ctrl+0x874/0xc20 [nvme_tcp]
[ 66.204786] [ T1315] nvmf_dev_write+0x40b/0x830 [nvme_fabrics]
[ 66.205695] [ T1315] vfs_write+0x1cc/0xf40
[ 66.206438] [ T1315] ksys_write+0x112/0x250
[ 66.207162] [ T1315] do_syscall_64+0xdf/0x790
[ 66.207937] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.208773] [ T1315]
-> #4 (set->srcu){.+.+}-{0:0}:
[ 66.210039] [ T1315] __synchronize_srcu+0xe1/0x2f0
[ 66.210750] [ T1315] elevator_switch+0x2bd/0x670
[ 66.211429] [ T1315] elevator_change+0x2e7/0x500
[ 66.212104] [ T1315] elevator_set_none+0xaa/0xf0
[ 66.212783] [ T1315] blk_unregister_queue+0x15e/0x2e0
[ 66.213527] [ T1315] __del_gendisk+0x28f/0xaa0
[ 66.214237] [ T1315] del_gendisk+0x11a/0x1c0
[ 66.214913] [ T1315] nvme_ns_remove+0x331/0x9e0 [nvme_core]
[ 66.215729] [ T1315] nvme_remove_namespaces+0x289/0x3f0 [nvme_core]
[ 66.216589] [ T1315] nvme_do_delete_ctrl+0xf6/0x160 [nvme_core]
[ 66.217431] [ T1315] nvme_delete_ctrl_sync.cold+0x8/0xd [nvme_core]
[ 66.218321] [ T1315] nvme_sysfs_delete+0xba/0xe0 [nvme_core]
[ 66.219120] [ T1315] kernfs_fop_write_iter+0x3d6/0x5e0
[ 66.219874] [ T1315] vfs_write+0x4b3/0xf40
[ 66.220615] [ T1315] ksys_write+0x112/0x250
[ 66.221389] [ T1315] do_syscall_64+0xdf/0x790
[ 66.222148] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.222978] [ T1315]
-> #3 (&q->elevator_lock){+.+.}-{4:4}:
[ 66.224209] [ T1315] __mutex_lock+0x1ae/0x2510
[ 66.224904] [ T1315] elevator_change+0x197/0x500
[ 66.225608] [ T1315] elv_iosched_store+0x38f/0x430
[ 66.226418] [ T1315] queue_attr_store+0x25f/0x3e0
[ 66.227141] [ T1315] kernfs_fop_write_iter+0x3d6/0x5e0
[ 66.227917] [ T1315] vfs_write+0x4b3/0xf40
[ 66.228607] [ T1315] ksys_write+0x112/0x250
[ 66.229308] [ T1315] do_syscall_64+0xdf/0x790
[ 66.229971] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.230748] [ T1315]
-> #2 (&q->q_usage_counter(io)){++++}-{0:0}:
[ 66.232002] [ T1315] blk_alloc_queue+0x605/0x7a0
[ 66.232701] [ T1315] blk_mq_alloc_queue+0x168/0x270
[ 66.233442] [ T1315] scsi_alloc_sdev+0x8df/0xd10
[ 66.234116] [ T1315] scsi_probe_and_add_lun+0x5bd/0xbf0
[ 66.234870] [ T1315] __scsi_add_device+0x233/0x280
[ 66.235679] [ T1315] ata_scsi_scan_host+0x137/0x3a0
[ 66.236433] [ T1315] async_run_entry_fn+0x93/0x550
[ 66.237161] [ T1315] process_one_work+0x8b6/0x15e0
[ 66.237927] [ T1315] worker_thread+0x5fd/0xfe0
[ 66.238700] [ T1315] kthread+0x36a/0x460
[ 66.239387] [ T1315] ret_from_fork+0x655/0x9d0
[ 66.240142] [ T1315] ret_from_fork_asm+0x1a/0x30
[ 66.240930] [ T1315]
-> #1 (fs_reclaim){+.+.}-{0:0}:
[ 66.242127] [ T1315] fs_reclaim_acquire+0xd5/0x120
[ 66.242842] [ T1315] kmem_cache_alloc_lru_noprof+0x6f/0x6d0
[ 66.243694] [ T1315] alloc_inode+0x9d/0x1e0
[ 66.244399] [ T1315] iget_locked+0x19d/0x630
[ 66.245091] [ T1315] kernfs_get_inode+0x42/0x440
[ 66.245842] [ T1315] kernfs_get_tree+0x5d0/0xbd0
[ 66.246588] [ T1315] vfs_get_tree+0x87/0x2f0
[ 66.247292] [ T1315] fc_mount+0x16/0x220
[ 66.247945] [ T1315] path_mount+0x854/0x1d10
[ 66.248660] [ T1315] __x64_sys_mount+0x208/0x270
[ 66.249379] [ T1315] do_syscall_64+0xdf/0x790
[ 66.250052] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.250848] [ T1315]
-> #0 (&root->kernfs_rwsem){++++}-{4:4}:
[ 66.252094] [ T1315] __lock_acquire+0xe20/0x2440
[ 66.252777] [ T1315] lock_acquire+0x199/0x320
[ 66.253468] [ T1315] down_write+0x8c/0x1f0
[ 66.254123] [ T1315] kernfs_remove_by_name_ns+0x53/0x160
[ 66.254908] [ T1315] sysfs_unmerge_group+0xd5/0x160
[ 66.255691] [ T1315] dev_pm_qos_hide_latency_tolerance+0x1f/0x60
[ 66.256563] [ T1315] nvme_uninit_ctrl+0x8f/0x110 [nvme_core]
[ 66.257376] [ T1315] nvme_tcp_create_ctrl+0x887/0xc20 [nvme_tcp]
[ 66.258083] [ T1315] nvmf_dev_write+0x40b/0x830 [nvme_fabrics]
[ 66.258878] [ T1315] vfs_write+0x1cc/0xf40
[ 66.259581] [ T1315] ksys_write+0x112/0x250
[ 66.260218] [ T1315] do_syscall_64+0xdf/0x790
[ 66.260892] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.261703] [ T1315]
other info that might help us debug this:
[ 66.263435] [ T1315] Chain exists of:
&root->kernfs_rwsem --> sparse_irq_lock --> &root->kernfs_supers_rwsem
[ 66.265397] [ T1315] Possible unsafe locking scenario:
[ 66.266612] [ T1315] CPU0 CPU1
[ 66.267323] [ T1315] ---- ----
[ 66.268043] [ T1315] rlock(&root->kernfs_supers_rwsem);
[ 66.268760] [ T1315] lock(sparse_irq_lock);
[ 66.269614] [ T1315] lock(&root->kernfs_supers_rwsem);
[ 66.270486] [ T1315] lock(&root->kernfs_rwsem);
[ 66.271166] [ T1315]
*** DEADLOCK ***
[ 66.272829] [ T1315] 3 locks held by nvme/1315:
[ 66.273499] [ T1315] #0: ffffffffc1ad8260 (nvmf_dev_mutex){+.+.}-{4:4}, at: nvmf_dev_write+0x82/0x830 [nvme_fabrics]
[ 66.274619] [ T1315] #1: ffffffff9ed0e3a0 (dev_pm_qos_sysfs_mtx){+.+.}-{4:4}, at: dev_pm_qos_hide_latency_tolerance+0x17/0x60
[ 66.275819] [ T1315] #2: ffff88810092b2a0 (&root->kernfs_supers_rwsem){++++}-{4:4}, at: kernfs_remove_by_name_ns+0x4b/0x160
[ 66.276970] [ T1315]
stack backtrace:
[ 66.278139] [ T1315] CPU: 2 UID: 0 PID: 1315 Comm: nvme Not tainted 7.2.0-rc1 #14 PREEMPT(full)
[ 66.278141] [ T1315] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-10.fc44 06/10/2025
[ 66.278143] [ T1315] Call Trace:
[ 66.278147] [ T1315] <TASK>
[ 66.278152] [ T1315] dump_stack_lvl+0x6a/0x90
[ 66.278156] [ T1315] print_circular_bug.cold+0x189/0x1eb
[ 66.278160] [ T1315] check_noncircular+0x173/0x1a0
[ 66.278164] [ T1315] __lock_acquire+0xe20/0x2440
[ 66.278166] [ T1315] lock_acquire+0x199/0x320
[ 66.278168] [ T1315] ? kernfs_remove_by_name_ns+0x53/0x160
[ 66.278170] [ T1315] ? __pfx___might_resched+0x10/0x10
[ 66.278173] [ T1315] down_write+0x8c/0x1f0
[ 66.278176] [ T1315] ? kernfs_remove_by_name_ns+0x53/0x160
[ 66.278177] [ T1315] ? __pfx_down_write+0x10/0x10
[ 66.278179] [ T1315] ? kernfs_root+0xac/0x1b0
[ 66.278180] [ T1315] ? lock_release+0x1b5/0x340
[ 66.278183] [ T1315] kernfs_remove_by_name_ns+0x53/0x160
[ 66.278185] [ T1315] sysfs_unmerge_group+0xd5/0x160
[ 66.278187] [ T1315] dev_pm_qos_hide_latency_tolerance+0x1f/0x60
[ 66.278190] [ T1315] nvme_uninit_ctrl+0x8f/0x110 [nvme_core]
[ 66.278212] [ T1315] nvme_tcp_create_ctrl+0x887/0xc20 [nvme_tcp]
[ 66.278216] [ T1315] ? nvmf_dev_write+0x2ff/0x830 [nvme_fabrics]
[ 66.278222] [ T1315] nvmf_dev_write+0x40b/0x830 [nvme_fabrics]
[ 66.278226] [ T1315] vfs_write+0x1cc/0xf40
[ 66.278229] [ T1315] ? __pfx_vfs_write+0x10/0x10
[ 66.278231] [ T1315] ? __call_rcu_common.constprop.0+0x4af/0x11a0
[ 66.278234] [ T1315] ? __call_rcu_common.constprop.0+0x4af/0x11a0
[ 66.278236] [ T1315] ? __pfx___call_rcu_common.constprop.0+0x10/0x10
[ 66.278240] [ T1315] ksys_write+0x112/0x250
[ 66.278242] [ T1315] ? __pfx_ksys_write+0x10/0x10
[ 66.278244] [ T1315] ? __pfx_fput_close_sync+0x10/0x10
[ 66.278246] [ T1315] do_syscall_64+0xdf/0x790
[ 66.278248] [ T1315] ? do_syscall_64+0x1ec/0x790
[ 66.278250] [ T1315] ? rcu_is_watching+0x11/0xb0
[ 66.278253] [ T1315] ? trace_hardirqs_on+0x14/0x190
[ 66.278255] [ T1315] ? preempt_count_add+0x7f/0x190
[ 66.278257] [ T1315] ? do_syscall_64+0x5d/0x790
[ 66.278258] [ T1315] ? do_syscall_64+0x8d/0x790
[ 66.278260] [ T1315] ? irqentry_exit+0xfc/0x810
[ 66.278262] [ T1315] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 66.278265] [ T1315] RIP: 0033:0x7f5f789ee08e
[ 66.278268] [ T1315] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 66.278270] [ T1315] RSP: 002b:00007ffd6525c110 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 66.278272] [ T1315] RAX: ffffffffffffffda RBX: 000000003ff23e00 RCX: 00007f5f789ee08e
[ 66.278274] [ T1315] RDX: 00000000000000cf RSI: 000000003ff23e00 RDI: 0000000000000003
[ 66.278275] [ T1315] RBP: 00007ffd6525c120 R08: 0000000000000000 R09: 0000000000000000
[ 66.278276] [ T1315] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 66.278277] [ T1315] R13: 000000003ff215b0 R14: 00007f5f78bc78c0 R15: 000000003ff233a0
[ 66.278280] [ T1315] </TASK>
[ 66.414442] [ T1161] nvmet: Created nvm controller 1 for subsystem blktests-subsystem-1 for NQN nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349, TLS.
[ 66.424755] [ T1325] nvme nvme5: creating 4 I/O queues.
[ 66.498028] [ T1325] nvme nvme5: mapped 4/0/0 default/read/poll queues.
[ 66.505881] [ T1325] nvme nvme5: new ctrl: NQN "blktests-subsystem-1", addr 127.0.0.1:4420, hostnqn: nqn.2014-08.org.nvmexpress:uuid:0f01fb42-9f7f-4856-b0b3-51e60b8de349
[ 66.948962] [ T82] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[ 66.974719] [ T1383] nvme nvme5: Removing ctrl: NQN "blktests-subsystem-1"
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2026-07-06 0:10 blktests failures with v7.2-rc1 kernel Shin'ichiro Kawasaki
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