INFO: task kworker/1:1:24 blocked for more than 143 seconds.
Not tainted 6.0.0-rc4-syzkaller-00120-gad5dbfc123e6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:22352 pid: 24 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x93f/0x26f0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
scsi_remove_host+0x3f7/0x540 drivers/scsi/hosts.c:199
quiesce_and_remove_host drivers/usb/storage/usb.c:867 [inline]
usb_stor_disconnect+0x115/0x260 drivers/usb/storage/usb.c:1087
usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:550 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:542
__device_release_driver drivers/base/dd.c:1249 [inline]
device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1275
bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529
device_del+0x4f3/0xc80 drivers/base/core.c:3704
usb_disable_device+0x356/0x7a0 drivers/usb/core/message.c:1419
usb_disconnect.cold+0x259/0x6ed drivers/usb/core/hub.c:2235
hub_port_connect drivers/usb/core/hub.c:5197 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5653 [inline]
hub_event+0x1f86/0x4610 drivers/usb/core/hub.c:5735
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2ea/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff87a94550 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
5 locks held by kworker/1:1/24:
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900001a7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f3c4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f3c4190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x6ed drivers/usb/core/hub.c:2226
#4: ffff88811d07d118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#4: ffff88811d07d118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline]
#4: ffff88811d07d118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1272
1 lock held by khungtaskd/26:
#0: ffffffff87a950a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492
2 locks held by getty/1235:
#0: ffff88810e5fa098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
6 locks held by kworker/0:3/4077:
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000176fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f3ac190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f3ac190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88810f3af4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3103 [inline]
#3: ffff88810f3af4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5249 [inline]
#3: ffff88810f3af4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#3: ffff88810f3af4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5653 [inline]
#3: ffff88810f3af4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x20f9/0x4610 drivers/usb/core/hub.c:5735
#4: ffff88810eabf268 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5250 [inline]
#4: ffff88810eabf268 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#4: ffff88810eabf268 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5653 [inline]
#4: ffff88810eabf268 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2120/0x4610 drivers/usb/core/hub.c:5735
#5: ffffffff884164b0 (
ehci_cf_port_reset_rwsem){.+.+}-{3:3}
, at: hub_port_reset+0x188/0x1cc0 drivers/usb/core/hub.c:2960
5 locks held by kworker/1:4/4116:
6 locks held by kworker/0:5/4141:
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000200fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f384190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f384190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88810f3874f0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3103 [inline]
#3: ffff88810f3874f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5249 [inline]
#3: ffff88810f3874f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#3: ffff88810f3874f0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5653 [inline]
#3: ffff88810f3874f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x20f9/0x4610 drivers/usb/core/hub.c:5735
#4: ffff88810edf6a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5250 [inline]
#4: ffff88810edf6a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#4: ffff88810edf6a68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5653 [inline]
#4: ffff88810edf6a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2120/0x4610 drivers/usb/core/hub.c:5735
#5: ffffffff884164b0 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x188/0x1cc0 drivers/usb/core/hub.c:2960
4 locks held by kworker/0:2/12522:
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c08d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90001f6fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f4f4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f4f4190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88810ca14190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff88810ca14190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983
5 locks held by kworker/1:5/28788:
3 locks held by udevd/29515:
#0: ffff88811c50a488 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff88811c50a488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x710 fs/kernfs/file.c:300
#1: ffff8881376a6da0 (kn->active#49){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff8881376a6da0 (kn->active#49){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x710 fs/kernfs/file.c:300
#2: ffff88810ca14190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88810ca14190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/29538:
#0: ffff88813592a088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff88813592a088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x710 fs/kernfs/file.c:300
#1: ffff8881108d7008 (kn->active#49){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff8881108d7008 (kn->active#49){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x710 fs/kernfs/file.c:300
#2: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/29548:
#0: ffff8881001d0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff8881001d0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x710 fs/kernfs/file.c:300
#1: ffff8881108d7008 (kn->active#49){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff8881108d7008 (kn->active#49){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x710 fs/kernfs/file.c:300
#2: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88811d079190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/29556:
#0: ffff888132bd4088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff888132bd4088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x710 fs/kernfs/file.c:300
#1: ffff88810fa42830 (kn->active#49){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff88810fa42830 (kn->active#49){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x710 fs/kernfs/file.c:300
#2: ffff888115934190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff888115934190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 6.0.0-rc4-syzkaller-00120-gad5dbfc123e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
kthread+0x2ea/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18806 Comm: syz-executor.3 Not tainted 6.0.0-rc4-syzkaller-00120-gad5dbfc123e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:__this_cpu_preempt_check+0x1/0x20 lib/smp_processor_id.c:65
Code: f3 54 d6 ff eb a2 0f 1f 00 0f 1f 44 00 00 48 c7 c6 40 b4 62 86 48 c7 c7 80 b4 62 86 e9 78 fe ff ff 0f 1f 84 00 00 00 00 00 55 <48> 89 fd 0f 1f 44 00 00 48 89 ee 5d 48 c7 c7 c0 b4 62 86 e9 57 fe
RSP: 0018:ffffc900100ef898 EFLAGS: 00000046
RAX: 0000000000000007 RBX: ffff8881f6837b18 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8647ade0
RBP: ffff88810adb1c80 R08: ffff8881f6837d50 R09: 0000023bf4df5c40
R10: ffff8881f6837cc0 R11: 0000000000000001 R12: ffffffff88deb42c
R13: ffff8881f6838338 R14: 1ffff9200201df19 R15: ffff8881f6837c60
FS: 000055555620c400(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f36178070b0 CR3: 000000013da24000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:461 [inline]
lock_unpin_lock+0x106/0x3c0 kernel/locking/lockdep.c:5765
rq_unpin_lock kernel/sched/sched.h:1594 [inline]
rq_unlock_irqrestore kernel/sched/sched.h:1661 [inline]
update_blocked_averages+0x3ef/0x1800 kernel/sched/fair.c:8404
newidle_balance+0x403/0x1020 kernel/sched/fair.c:11159
pick_next_task_fair+0x48/0xf80 kernel/sched/fair.c:7482
__pick_next_task kernel/sched/core.c:5804 [inline]
pick_next_task kernel/sched/core.c:6313 [inline]
__schedule+0x3a3/0x26f0 kernel/sched/core.c:6458
schedule+0xda/0x1b0 kernel/sched/core.c:6570
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x197/0x690 kernel/time/hrtimer.c:2044
hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097
common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1236
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline]
__x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1254
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa15cf8b33a
Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3
RSP: 002b:00007ffceaa0a960 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000688 RCX: 00007fa15cf8b33a
RDX: 00007ffceaa0a9a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffceaa0aa2c R08: 0000000000000998 R09: 00007ffceaa4c080
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032
R13: 00000000002574e9 R14: 0000000000000000 R15: 00007ffceaa0aa90