[linus:master] [io_uring/sqpoll] 22d9db9fd6: WARNING:at_io_uring/sqpoll.c:#io_sq_thread_stop

[linus:master] [io_uring/sqpoll] 22d9db9fd6: WARNING:at_io_uring/sqpoll.c:#io_sq_thread_stop

[kernel test robot]

Hello,

kernel test robot noticed "WARNING:at_io_uring/sqpoll.c:#io_sq_thread_stop" on:

commit: 22d9db9fd64a493525d692b32c556875b7254665 ("io_uring/sqpoll: don't attach to a thread that is canceling") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: trinity
version: trinity-x86_64-24d3003cd-1_20261026
with following parameters:

	runtime: 600s

config: x86_64-kexec
compiler: clang-22
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 4 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202611020832.6be281-lkp@intel.com


[   26.587414][   T45] ------------[ cut here ]------------
[   26.589928][   T45] WARNING: io_uring/sqpoll.c:88 at io_sq_thread_stop+0x51/0x70, CPU#2: kworker/u16:1/45
[   26.594244][   T45] Modules linked in: cn scsi_transport_iscsi can tun sr_mod cdrom sg ata_generic fuse
[   26.598751][   T45] CPU: 2 UID: 0 PID: 45 Comm: kworker/u16:1 Not tainted 7.3.0-16149-g22d9db9fd64a #1 PREEMPTLAZY
[   26.603843][   T45] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.609058][   T45] Workqueue: iou_exit io_ring_exit_work
[   26.611968][   T45] RIP: 0010:io_sq_thread_stop+0x51/0x70
[   26.614851][   T45] Code: d5 9f a0 00 49 8b 7e 38 48 85 ff 74 12 65 48 8b 05 bc 67 1b 02 48 39 c7 74 14 e8 7a 5e 97 ff 48 89 df 5b 41 5e e9 2f a0 a0 00 <0f> 0b eb c4 0f 0b eb e8 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00
[   26.649711][   T45] RSP: 0018:ffffc90000197d88 EFLAGS: 00010202
[   26.653681][   T45] RAX: 0000000000000001 RBX: ffff88811dd85b80 RCX: 0000000000000000
[   26.662253][   T45] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff88811dd85b80
[   26.668755][   T45] RBP: ffff888113d26c00 R08: 0000000000000000 R09: 0000000840670f01
[   26.674920][   T45] R10: 0000000000000000 R11: ffffffff81311c10 R12: ffff888113d26be0
[   26.681428][   T45] R13: ffff888113d26bd0 R14: ffff88811dd85b80 R15: ffff888113d26ac0
[   26.686241][   T45] FS:  0000000000000000(0000) GS:ffff8884ac1d0000(0000) knlGS:0000000000000000
[   26.690638][   T45] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.693882][   T45] CR2: 00007fc4f47f2748 CR3: 0000000166ff4000 CR4: 00000000000406f0
[   26.697813][   T45] Call Trace:
[   26.699320][   T45]  <TASK>
[   26.701367][   T45]  io_put_sq_data+0x29/0x70
[   26.703371][   T45]  io_sq_thread_finish+0x82/0xb0
[   26.706484][   T45]  io_ring_ctx_free+0x10/0x270
[   26.708922][   T45]  io_ring_exit_work+0x131/0x230
[   26.711067][   T45]  ? __pfx_io_tctx_exit_cb+0x10/0x10
[   26.714184][   T45]  process_scheduled_works+0x200/0x430
[   26.717583][   T45]  worker_thread+0x1bd/0x2b0
[   26.722123][   T45]  ? __pfx_worker_thread+0x10/0x10
[   26.732821][   T45]  kthread+0xfe/0x130
[   26.740731][   T45]  ? __pfx_kthread+0x10/0x10
[   26.744642][   T45]  ret_from_fork+0xe0/0x1f0
[   26.747511][   T45]  ? __pfx_kthread+0x10/0x10
[   26.754281][   T45]  ret_from_fork_asm+0x1a/0x30
[   26.757373][   T45]  </TASK>
[   26.765995][   T45] ---[ end trace 0000000000000000 ]---


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261102/202611020832.6be281-lkp@intel.com


--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki