WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#1: kworker/u11:8/318
Modules linked in:
CPU: 1 UID: 0 PID: 318 Comm: kworker/u11:8 Not tainted 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 57 c7 5c 00 e9 a9 fe ff ff e8 7d 1d 1f 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 6c 1d 1f 00 90 0f 0b 90 45 31
RSP: 0018:ffff88806cf086b8 EFLAGS: 00010046
RAX: 0000000080010000 RBX: ffff88806cf087d0 RCX: ffffffff8155afe6
RDX: ffff888015b20000 RSI: ffffffff8155b1b3 RDI: 0000000000000006
RBP: ffff88806cf08798 R08: 0000000000001338 R09: 0000008bbc4dc9ce
R10: 0000000000000000 R11: 0000013e8200004f R12: ffffffff85d2e610
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c9e4d8018 CR3: 000000000c8b5000 CR4: 0000000000350ef0
Call Trace:
_prb_read_valid+0x2f3/0x830
prb_read_valid+0x78/0xa0
printk_get_next_message+0x10b/0x570
console_flush_one_record+0x64f/0xb20
__console_flush_and_unlock+0xb1/0x1d0
wake_up_klogd_work_func+0x17c/0x1e0
irq_work_single+0x128/0x260
irq_work_run_list+0x91/0xc0
update_process_times+0x12f/0x210
tick_nohz_handler+0x4ff/0x8c0
__hrtimer_run_queues+0x60f/0xab0
hrtimer_interrupt+0x369/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x6b/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:dump_stack_lvl+0x115/0x120
Code: fc ff ff 4c 89 e2 31 f6 31 ff e8 46 89 6c fc e8 d1 d2 96 fc 48 89 ee 31 ff e8 d7 08 b7 fc e8 72 0d b7 fc e8 7d 76 bf fc fb 5b <5d> 41 5c e9 63 0d b7 fc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffff88801874f588 EFLAGS: 00000206
RAX: 00000000000079c3 RBX: ffff88804943cbe8 RCX: 0000000000000040
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84bdc1c3
RBP: 0000000000000200 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664a557 R11: 0000000000000001 R12: ffffffff85520ea0
R13: ffff88800d0c54b0 R14: ffff88804943cc00 R15: ffffffff85251de0
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
irq event stamp: 31172
hardirqs last enabled at (31171): [] dump_stack_lvl+0x113/0x120
hardirqs last disabled at (31172): [] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last enabled at (31148): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (31087): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
debugfs: '0' already exists in 'hci4'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci4 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci4: failed to register connection device
debugfs: '0' already exists in 'hci3'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci3/hci3:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci3 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci3:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci3: failed to register connection device
debugfs: '0' already exists in 'hci3'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci3/hci3:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci3 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci3:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci3: failed to register connection device
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
debugfs: '0' already exists in 'hci1'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci1/hci1:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci1 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
debugfs: '0' already exists in 'hci3'
kobject: kobject_add_internal failed for hci1:0 with -EEXIST, don't try to register things with the same name in the same directory.
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci3/hci3:0'
Bluetooth: hci1: failed to register connection device
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci3 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci3:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci3: failed to register connection device
debugfs: '0' already exists in 'hci3'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci3/hci3:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci3 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci3:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci3: failed to register connection device
debugfs: '0' already exists in 'hci4'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci4 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci4: failed to register connection device
debugfs: '0' already exists in 'hci1'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci1/hci1:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci1 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci1:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci1: failed to register connection device
Bluetooth: hci3: hcon 000000004705161b sent 1 < count 793
Bluetooth: hci3: hcon 000000004705161b sent 0 < count 1023
Bluetooth: hci3: hcon 000000004705161b sent 0 < count 793
Bluetooth: hci3: hcon 000000004705161b sent 0 < count 1023
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
Bluetooth: hci0: SCO packet for unknown connection handle 1
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci0: ACL packet for unknown connection handle 197
Bluetooth: hci5: failed to register connection device
Bluetooth: hci0: SCO packet for unknown connection handle 1
debugfs: '0' already exists in 'hci4'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci4 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci4: failed to register connection device
Bluetooth: hci0: ACL packet for unknown connection handle 197
debugfs: '0' already exists in 'hci1'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci1/hci1:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci1 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci1:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci1: failed to register connection device
debugfs: '0' already exists in 'hci5'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
CPU: 0 UID: 0 PID: 5917 Comm: kworker/u11:0 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci5 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci5: failed to register connection device
debugfs: '0' already exists in 'hci4'
sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
CPU: 1 UID: 0 PID: 303 Comm: kworker/u11:3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: hci4 hci_rx_work
Call Trace:
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+0x124b/0x1f60
hci_le_enh_conn_complete_evt+0x22f/0x2e0
hci_le_meta_evt+0x34b/0x530
hci_event_packet+0x66c/0x10e0
hci_rx_work+0x96c/0x1270
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x67a/0x7a0
ret_from_fork_asm+0x1a/0x30
kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
Bluetooth: hci4: failed to register connection device
----------------
Code disassembly (best guess), 2 bytes skipped:
0: ff 4c 89 e2 decl -0x1e(%rcx,%rcx,4)
4: 31 f6 xor %esi,%esi
6: 31 ff xor %edi,%edi
8: e8 46 89 6c fc callq 0xfc6c8953
d: e8 d1 d2 96 fc callq 0xfc96d2e3
12: 48 89 ee mov %rbp,%rsi
15: 31 ff xor %edi,%edi
17: e8 d7 08 b7 fc callq 0xfcb708f3
1c: e8 72 0d b7 fc callq 0xfcb70d93
21: e8 7d 76 bf fc callq 0xfcbf76a3
26: fb sti
27: 5b pop %rbx
* 28: 5d pop %rbp <-- trapping instruction
29: 41 5c pop %r12
2b: e9 63 0d b7 fc jmpq 0xfcb70d93
30: 0f 1f 00 nopl (%rax)
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop