INFO: task kworker/u4:1:11 blocked for more than 143 seconds.
Not tainted 6.0.0-rc2-syzkaller-00283-g10d4879f9ef0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:1 state:D
stack:23864 pid: 11 ppid: 2 flags:0x00004000
Workqueue: events_unbound fsnotify_connector_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
schedule_timeout+0xac/0x300 kernel/time/timer.c:1911
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__synchronize_srcu+0x2aa/0x350 kernel/rcu/srcutree.c:1215
fsnotify_connector_destroy_workfn+0x40/0xa0 fs/notify/mark.c:208
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task kworker/u4:3:51 blocked for more than 145 seconds.
Not tainted 6.0.0-rc2-syzkaller-00283-g10d4879f9ef0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:3 state:D
stack:20192 pid: 51 ppid: 2 flags:0x00004000
Workqueue: events_unbound fsnotify_mark_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
schedule_timeout+0xac/0x300 kernel/time/timer.c:1911
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__synchronize_srcu+0x2aa/0x350 kernel/rcu/srcutree.c:1215
fsnotify_mark_destroy_workfn+0x142/0x340 fs/notify/mark.c:898
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
2 locks held by kworker/u4:1/11:
#0:
ffff888012069138
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1:
ffffc90000107d00
(
connector_reaper_work
){+.+.}-{0:0}
, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cd20970 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cd21170 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0:
ffffffff8cd207a0
(
rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/51:
#0: ffff888012069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1:
ffffc90000bc7d00
(
(reaper_work).work
){+.+.}-{0:0}
, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
4 locks held by kworker/u4:4/62:
6 locks held by kworker/1:2/1792:
2 locks held by getty/3282:
#0: ffff88814abdb098 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1:
ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177
6 locks held by kworker/1:0/3677:
6 locks held by kworker/0:4/3706:
5 locks held by kworker/0:5/3707:
#0: ffff888018551538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1:
ffffc900043cfd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888021d08190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff888021d08190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bb/0xd80 drivers/usb/core/hub.c:5681
#3: ffff8880b9a39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:544
#4: ffff8880b9a27748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x5b1/0x8a0 kernel/sched/psi.c:885
3 locks held by udevd/3765:
#0:
ffff888018c55c88 (&of->mutex){+.+.}-{3:3}
, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
, at: kernfs_fop_read_iter+0x1a5/0x650 fs/kernfs/file.c:300
#1:
ffff88801d6922c0 (kn->active#83){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
ffff88801d6922c0 (kn->active#83){++++}-{0:0}, at: kernfs_fop_read_iter+0x1bc/0x650 fs/kernfs/file.c:300
#2: ffff888021f5d190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff888021f5d190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x30/0x390 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3767:
#0:
ffff88807eeaf888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
ffff88807eeaf888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x1a5/0x650 fs/kernfs/file.c:300
#1:
ffff88801c6f70f0 (kn->active#83){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
ffff88801c6f70f0 (kn->active#83){++++}-{0:0}, at: kernfs_fop_read_iter+0x1bc/0x650 fs/kernfs/file.c:300
#2: ffff88801833b190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88801833b190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x30/0x390 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3768:
#0: ffff88806db68c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff88806db68c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x1a5/0x650 fs/kernfs/file.c:300
#1: ffff88806db30830 (kn->active#83){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff88806db30830 (kn->active#83){++++}-{0:0}, at: kernfs_fop_read_iter+0x1bc/0x650 fs/kernfs/file.c:300
#2: ffff8880762d9190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff8880762d9190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x30/0x390 drivers/usb/core/sysfs.c:873
6 locks held by kworker/1:10/3775:
2 locks held by dhcpcd/3867:
#0: ffff88806bbfe130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1712 [inline]
#0: ffff88806bbfe130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
#1: ffffffff8cd25d78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#1: ffffffff8cd25d78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2a4/0x770 kernel/rcu/tree_exp.h:940
2 locks held by dhcpcd/3869:
#0:
ffff88801e0b4130
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1712 [inline]
, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
#1:
ffffffff8cd25d78
(
rcu_state.exp_mutex
){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
, at: synchronize_rcu_expedited+0x369/0x770 kernel/rcu/tree_exp.h:940
1 lock held by dhcpcd/3870:
#0: ffff888077606130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1712 [inline]
#0: ffff888077606130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
1 lock held by dhcpcd/3871:
#0:
ffff888077602130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1712 [inline]
ffff888077602130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
1 lock held by dhcpcd/3875:
#0: ffff88806d7b0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1712 [inline]
#0: ffff88806d7b0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
1 lock held by dhcpcd/3877:
#0:
ffff888076d0a130
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1712 [inline]
, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc2-syzkaller-00283-g10d4879f9ef0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x47c/0x4b0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 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+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3707 Comm: kworker/0:5 Not tainted 6.0.0-rc2-syzkaller-00283-g10d4879f9ef0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: usb_hub_wq hub_event
RIP: 0010:__lock_acquire+0x6e9/0x1f60 kernel/locking/lockdep.c:5003
Code: 41 b5 02 85 c0 75 23 48 8b 44 24 48 8a 04 10 84 c0 0f 85 c9 14 00 00 48 8b 44 24 10 83 38 00 41 0f 94 c5 45 00 ed 41 80 c5 02 <48> 8b 44 24 38 8a 04 10 84 c0 0f 85 2e 13 00 00 45 3b 26 0f 8d 89
RSP: 0018:ffffc900000079e8 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 00000000000c4107 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8ff9e040
RBP: 0000000000000005 R08: dffffc0000000000 R09: fffffbfff1ff3c09
R10: fffffbfff1ff3c09 R11: 1ffffffff1ff3c08 R12: 0000000000000006
R13: ffff88801f125802 R14: ffff88801f1262f0 R15: ffff88801f126430
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb2a30d0008 CR3: 000000007e3a9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5666
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
debug_object_deactivate+0x61/0x400 lib/debugobjects.c:732
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate kernel/time/hrtimer.c:481 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x2f9/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20
RIP: 0010:console_trylock_spinning+0x3af/0x450 kernel/printk/printk.c:1922
Code: 0f 84 4c ff ff ff e8 b0 76 1c 00 fb 31 db eb 41 e8 a6 76 1c 00 e8 e1 a0 cb 08 4d 85 ed 74 cd e8 97 76 1c 00 fb bb 01 00 00 00 <48> c7 c7 a0 c8 bf 8c 31 f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00
RSP: 0018:ffffc900043cdfe0 EFLAGS: 00000293
RAX: ffffffff816d2209 RBX: 0000000000000001 RCX: ffff88801f125880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900043ce0a8 R08: ffffffff816d21c2 R09: fffffbfff1ff3c17
R10: fffffbfff1ff3c17 R11: 1ffffffff1ff3c16 R12: 1ffff92000879bfc
R13: 0000000000000200 R14: 0000000000000046 R15: dffffc0000000000
vprintk_emit+0xb8/0x1e0 kernel/printk/printk.c:2270
dev_vprintk_emit+0x2e4/0x35d drivers/base/core.c:4736
dev_printk_emit+0xd9/0x118 drivers/base/core.c:4747
_dev_warn+0x12f/0x176 drivers/base/core.c:4803
hid_parser_main+0x71a/0xae0 drivers/hid/hid-core.c:633
hid_open_report+0x85b/0x1090 drivers/hid/hid-core.c:1265
hid_parse include/linux/hid.h:1100 [inline]
cp_probe+0x5e/0xd0 drivers/hid/hid-cypress.c:135
hid_device_probe+0x2ae/0x3a0 drivers/hid/hid-core.c:2598
call_driver_probe+0x96/0x250
really_probe+0x24c/0x9f0 drivers/base/dd.c:609
__driver_probe_device+0x1f4/0x3f0 drivers/base/dd.c:748
driver_probe_device+0x50/0x240 drivers/base/dd.c:778
__device_attach_driver+0x273/0x3d0 drivers/base/dd.c:901
bus_for_each_drv+0x18a/0x210 drivers/base/bus.c:427
__device_attach+0x372/0x5a0 drivers/base/dd.c:973
bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:487
device_add+0xb20/0xf90 drivers/base/core.c:3517
hid_add_device+0x37c/0x4c0 drivers/hid/hid-core.c:2748
usbhid_probe+0xb31/0xe90 drivers/hid/usbhid/hid-core.c:1424
usb_probe_interface+0x66e/0xb60 drivers/usb/core/driver.c:396
call_driver_probe+0x96/0x250
really_probe+0x24c/0x9f0 drivers/base/dd.c:609
__driver_probe_device+0x1f4/0x3f0 drivers/base/dd.c:748
driver_probe_device+0x50/0x240 drivers/base/dd.c:778
__device_attach_driver+0x273/0x3d0 drivers/base/dd.c:901
bus_for_each_drv+0x18a/0x210 drivers/base/bus.c:427
__device_attach+0x372/0x5a0 drivers/base/dd.c:973
bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:487
device_add+0xb20/0xf90 drivers/base/core.c:3517
usb_set_configuration+0x1a5f/0x20e0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
usb_probe_device+0x131/0x260 drivers/usb/core/driver.c:293
call_driver_probe+0x96/0x250
really_probe+0x24c/0x9f0 drivers/base/dd.c:609
__driver_probe_device+0x1f4/0x3f0 drivers/base/dd.c:748
driver_probe_device+0x50/0x240 drivers/base/dd.c:778
__device_attach_driver+0x273/0x3d0 drivers/base/dd.c:901
bus_for_each_drv+0x18a/0x210 drivers/base/bus.c:427
__device_attach+0x372/0x5a0 drivers/base/dd.c:973
bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:487
device_add+0xb20/0xf90 drivers/base/core.c:3517
usb_new_device+0xbc2/0x18b0 drivers/usb/core/hub.c:2573
hub_port_connect+0x105b/0x2930 drivers/usb/core/hub.c:5353
hub_port_connect_change+0x619/0xbe0 drivers/usb/core/hub.c:5497
port_event+0xec6/0x13b0 drivers/usb/core/hub.c:5653
hub_event+0x5c1/0xd80 drivers/usb/core/hub.c:5735
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0xe16/0x1330 kernel/workqueue.c:2438
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30