INFO: task kworker/0:4:22626 blocked for more than 143 seconds.
Not tainted 6.2.0-rc5-syzkaller-00045-g948ef7bb70c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:26936 pid:22626 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:728
usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717
usb_start_wait_urb+0x24a/0x4b0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153
hub_port_init+0x114c/0x3570 drivers/usb/core/hub.c:4875
hub_port_connect drivers/usb/core/hub.c:5337 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5552 [inline]
port_event drivers/usb/core/hub.c:5712 [inline]
hub_event+0x2b5d/0x4810 drivers/usb/core/hub.c:5794
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c790fb0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c790cb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c791b00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4756:
#0: ffff888027375098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1:
ffffc900015902f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
2 locks held by kworker/1:6/5164:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90005017da8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
5 locks held by kworker/0:4/22626:
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880179e1538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc900064efda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88814747a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#2: ffff88814747a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4810 drivers/usb/core/hub.c:5740
#3: ffff88814747d4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3148 [inline]
#3: ffff88814747d4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5304 [inline]
#3: ffff88814747d4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5552 [inline]
#3: ffff88814747d4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5712 [inline]
#3: ffff88814747d4f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x277c/0x4810 drivers/usb/core/hub.c:5794
#4: ffff888147422168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5305 [inline]
#4: ffff888147422168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5552 [inline]
#4: ffff888147422168 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5712 [inline]
#4: ffff888147422168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27b1/0x4810 drivers/usb/core/hub.c:5794
1 lock held by syz-executor.3/4389:
#0: ffffffff8c79c680 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6d0 kernel/rcu/tree.c:3997
1 lock held by syz-executor.2/4396:
#0: ffffffff8c79c680 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6d0 kernel/rcu/tree.c:3997
2 locks held by syz-executor.5/4426:
#0: ffffffff8e0be1e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline]
#0: ffffffff8e0be1e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6138
#1: ffffffff8c79c7b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#1: ffffffff8c79c7b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x5df/0x780 kernel/rcu/tree_exp.h:946
1 lock held by syz-executor.5/4427:
#0: ffffffff8e0be1e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x1c3/0x1060 net/core/dev_ioctl.c:612
1 lock held by syz-executor.5/4429:
#0: ffffffff8e0be1e8 (rtnl_mutex){+.+.}-{3:3}, at: xsk_bind+0x15f/0x10c0 net/xdp/xsk.c:895
1 lock held by syz-executor.5/4431:
#0:
ffffffff8e0be1e8
(
rtnl_mutex
){+.+.}-{3:3}
, at: dev_ifconf+0x183/0x380 net/core/dev_ioctl.c:66
1 lock held by syz-executor.5/4435:
#0:
ffffffff8e0be1e8
(
rtnl_mutex
){+.+.}-{3:3}
, at: xsk_bind+0x15f/0x10c0 net/xdp/xsk.c:895
2 locks held by syz-executor.0/4428:
#0: ffff888082bd1b98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff888082bd1b98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1369
#1: ffffffff8c8860a8 (oom_lock){+.+.}-{3:3}, at: mem_cgroup_out_of_memory+0x8d/0x270 mm/memcontrol.c:1701
6 locks held by syz-executor.0/4430:
1 lock held by syz-executor.4/4432:
#0: ffffffff8c79c680 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6d0 kernel/rcu/tree.c:3997
3 locks held by syz-executor.1/4441:
#0: ffff8880a57c5018 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff8880a57c5018 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1369
#1: ffffffff8c911420 (memcg_oom_lock#2){+.+.}-{0:0}, at: mem_cgroup_oom mm/memcontrol.c:1935 [inline]
#1: ffffffff8c911420 (memcg_oom_lock#2){+.+.}-{0:0}, at: try_charge_memcg+0xe6d/0x12f0 mm/memcontrol.c:2736
#2: ffffffff8c8860a8
(
oom_lock
){+.+.}-{3:3}
, at: mem_cgroup_out_of_memory+0x8d/0x270 mm/memcontrol.c:1701
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc5-syzkaller-00045-g948ef7bb70c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4430 Comm: syz-executor.0 Not tainted 6.2.0-rc5-syzkaller-00045-g948ef7bb70c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:lock_is_held_type+0x103/0x140 kernel/locking/lockdep.c:5716
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 f0 0b fc 75 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc90000007de0 EFLAGS: 00000092
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000010002 RDI: 0000000000000000
RBP: ffffffff8c791a40 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802992ba80
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88802992c4b8
FS: 00007f79693aa700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8463abf84 CR3: 00000000757bb000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3e/0x70 kernel/rcu/update.c:125
trace_hrtimer_expire_exit include/trace/events/timer.h:282 [inline]
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0xb43/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x320/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x180/0x640 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3c/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 c6 3c 5a f7 48 89 ef e8 6e a9 5a f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 8f 0e 4d f7 65 8b 05 90 ea f9 75 85 c0 74 0a 5b 5d c3 e8 ac 22
RSP: 0018:ffffc90017c3fa48 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff22677d6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffffff8c8ad960 R08: 0000000000000001 R09: ffffffff91339ac7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: 000000000007be0c R15: 000000000007be0c
spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
pcpu_alloc+0x86e/0x14c0 mm/percpu.c:1843
__percpu_counter_init+0x113/0x310 lib/percpu_counter.c:166
mm_init+0x806/0xc10 kernel/fork.c:1167
dup_mm kernel/fork.c:1545 [inline]
copy_mm kernel/fork.c:1597 [inline]
copy_process+0x43f6/0x7520 kernel/fork.c:2266
kernel_clone+0xeb/0x990 kernel/fork.c:2681
__do_sys_clone+0xba/0x100 kernel/fork.c:2822
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f796868c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f79693aa118 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f79687abf80 RCX: 00007f796868c0c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f79686e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f79688cfb1f R14: 00007f79693aa300 R15: 0000000000022000