[bug report][regession] most of blktests nvme/tcp failed with the last linux code

[Yi Zhang]

Hello

CKI reported most of the blktests nvme/tcp tests failed on the linux
tree[1], here is the reproducer and dmesg log, the issue cannot be
reproduced with 6.11.0, seems
it was introduced with the latest block code merge, please help check
it and let me know if you need any info/testing about it, thanks.


[1]
https://datawarehouse.cki-project.org/kcidb/tests/14394423

[2]
# nvme_trtype=tcp ./check nvme/003
nvme/003 (tr=tcp) (test if we're sending keep-alives to a discovery
controller) [failed]
    runtime  11.280s  ...  11.188s
    --- tests/nvme/003.out 2024-09-18 11:30:11.243366401 -0400
    +++ /root/blktests/results/nodev_tr_tcp/nvme/003.out.bad
2024-09-18 11:52:32.977112834 -0400
    @@ -1,3 +1,3 @@
     Running nvme/003
    -disconnected 1 controller(s)
    +disconnected 0 controller(s)
     Test complete
# dmesg
[  447.213539] run blktests nvme/003 at 2024-09-18 11:52:21
[  447.229285] loop0: detected capacity change from 0 to 2097152
[  447.233104] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[  447.242398] nvmet_tcp: enabling port 0 (127.0.0.1:4420)
[  447.251089] sysfs: cannot create duplicate filename
'/devices/virtual/nvme-fabrics/ctl/nvme0/reset_controller'
[  447.251810] CPU: 2 UID: 0 PID: 5241 Comm: nvme Kdump: loaded Not
tainted 6.12.0-0.rc0.adfc3ded5c33.2.test.el10.aarch64 #1
[  447.252540] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[  447.253006] Call trace:
[  447.253171]  dump_backtrace+0xd8/0x130
[  447.253432]  show_stack+0x20/0x38
[  447.253657]  dump_stack_lvl+0x80/0xa8
[  447.253925]  dump_stack+0x18/0x30
[  447.254152]  sysfs_warn_dup+0x6c/0x90
[  447.254406]  sysfs_add_file_mode_ns+0x12c/0x138
[  447.254713]  create_files+0xa8/0x1f8
[  447.254973]  internal_create_group+0x18c/0x358
[  447.255274]  internal_create_groups+0x58/0xe0
[  447.255558]  sysfs_create_groups+0x20/0x40
[  447.255826]  device_add_attrs+0x19c/0x218
[  447.256093]  device_add+0x310/0x6d0
[  447.256327]  cdev_device_add+0x58/0xc0
[  447.256579]  nvme_add_ctrl+0x78/0xd0 [nvme_core]
[  447.256895]  nvme_tcp_create_ctrl+0x3c/0x178 [nvme_tcp]
[  447.257248]  nvmf_create_ctrl+0x150/0x288 [nvme_fabrics]
[  447.257614]  nvmf_dev_write+0x98/0xf8 [nvme_fabrics]
[  447.257948]  vfs_write+0xdc/0x380
[  447.258174]  ksys_write+0x7c/0x120
[  447.258408]  __arm64_sys_write+0x24/0x40
[  447.258673]  invoke_syscall.constprop.0+0x74/0xd0
[  447.258994]  do_el0_svc+0xb0/0xe8
[  447.259225]  el0_svc+0x44/0x1a0
[  447.259449]  el0t_64_sync_handler+0x120/0x130
[  447.259745]  el0t_64_sync+0x1a4/0x1a8

-- 
Best Regards,
  Yi Zhang