kobject: kobject_add_internal failed for hci6:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci6: failed to register connection device
------------[ cut here ]------------
WARNING: net/bluetooth/hci_conn.c:567 at hci_conn_timeout+0x82/0x130, CPU#1: kworker/u11:2/6379
Modules linked in:
CPU: 1 UID: 0 PID: 6379 Comm: kworker/u11:2 Not tainted 6.18.0-next-20251203 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x82/0x130
Code: e8 33 a6 25 fd 85 ed 78 1b e8 0a ab 25 fd 31 ff 89 ee e8 21 a6 25 fd 85 ed 74 12 5b 5d 41 5c e9 f4 aa 25 fd e8 ef aa 25 fd 90 <0f> 0b 90 e8 e6 aa 25 fd 48 8d bb fd f5 ff ff 48 b8 00 00 00 00 00
RSP: 0018:ffff88804a61fbe8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88800a994a40 RCX: ffffffff844fc73d
RDX: ffff88801a889bc0 RSI: ffffffff844fc761 RDI: 0000000000000005
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffed1001532802
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88800fa16000
R13: ffff88804a61fcb8 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880e5465000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd03083fd8 CR3: 000000004a202000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 process_one_work+0x8e1/0x1960
 worker_thread+0x67e/0xe90
 kthread+0x3c8/0x740
 ret_from_fork+0x67a/0x7a0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
irq event stamp: 75835
hardirqs last  enabled at (75843): [<ffffffff8154ec78>] __up_console_sem+0x78/0x80
hardirqs last disabled at (75852): [<ffffffff8154ec5d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (75726): [<ffffffff813c1388>] handle_softirqs+0x4d8/0x740
softirqs last disabled at (75423): [<ffffffff813c1724>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci6: command 0x2016 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci6: command 0x2016 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci6: command 0x2016 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci6: command 0x2016 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci3: hardware error 0x1c
Bluetooth: hci6: SCO packet for unknown connection handle 201
Bluetooth: hci6: Ignoring HCI_Connection_Complete for existing connection
Bluetooth: hci6: SCO packet for unknown connection handle 201
Bluetooth: hci5: ACL packet for unknown connection handle 200
debugfs: '0' already exists in 'hci6'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci6/hci6:0'
CPU: 1 UID: 0 PID: 313 Comm: kworker/u11:7 Tainted: G        W           6.18.0-next-20251203 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci6 hci_rx_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xfa/0x120
 sysfs_warn_dup+0x80/0xa0
 sysfs_create_dir_ns+0x23b/0x2a0
 kobject_add_internal+0x24c/0x9a0
 kobject_add+0x157/0x240
 device_add+0x32d/0x1830
 hci_conn_add_sysfs+0x117/0x1c0
 le_conn_complete_evt+0x1246/0x1e40
 hci_le_enh_conn_complete_evt+0x22f/0x2e0
 hci_le_meta_evt+0x34b/0x530
 hci_event_packet+0x66c/0x10e0
 hci_rx_work+0x65b/0x8b0
 process_one_work+0x8e1/0x1960
 worker_thread+0x67e/0xe90
 kthread+0x3c8/0x740
 ret_from_fork+0x67a/0x7a0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
kobject: kobject_add_internal failed for hci6:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci6: failed to register connection device
debugfs: '0' already exists in 'hci6'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci6/hci6:0'
CPU: 1 UID: 0 PID: 313 Comm: kworker/u11:7 Tainted: G        W           6.18.0-next-20251203 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci6 hci_rx_work
Call Trace:
 <TASK>
 dump_stack_lvl+0xfa/0x120
 sysfs_warn_dup+0x80/0xa0
 sysfs_create_dir_ns+0x23b/0x2a0
 kobject_add_internal+0x24c/0x9a0
 kobject_add+0x157/0x240
 device_add+0x32d/0x1830
 hci_conn_add_sysfs+0x117/0x1c0
 le_conn_complete_evt+0x1246/0x1e40
 hci_le_enh_conn_complete_evt+0x22f/0x2e0
 hci_le_meta_evt+0x34b/0x530
 hci_event_packet+0x66c/0x10e0
 hci_rx_work+0x65b/0x8b0
 process_one_work+0x8e1/0x1960
 worker_thread+0x67e/0xe90
 kthread+0x3c8/0x740
 ret_from_fork+0x67a/0x7a0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
kobject: kobject_add_internal failed for hci6:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci6: failed to register connection device
Bluetooth: hci5: ACL packet for unknown connection handle 200