INFO: task kworker/1:0:10062 blocked for more than 143 seconds.
Not tainted 6.4.0-rc4-syzkaller-00110-gb4a4be847184 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D
stack:22656 pid:10062 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xaa9/0x2f10 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
unregister_netdev+0x12/0x30 net/core/dev.c:10955
usbnet_disconnect+0xe6/0x510 drivers/net/usb/usbnet.c:1621
usb_unbind_interface+0x1dc/0x8e0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x443/0x610 drivers/base/dd.c:1295
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x399/0xa30 drivers/base/core.c:3814
usb_disable_device+0x360/0x7b0 drivers/usb/core/message.c:1420
usb_disconnect+0x2db/0x8a0 drivers/usb/core/hub.c:2238
hub_port_connect drivers/usb/core/hub.c:5246 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
port_event drivers/usb/core/hub.c:5711 [inline]
hub_event+0x2073/0x4ed0 drivers/usb/core/hub.c:5793
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
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: ffffffff87c9f270
(rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/13:
#0:
ffffffff87c9ef70 (
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff87c9fe80 (
rcu_read_lock){....}-{1:2}
, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6559
6 locks held by kworker/1:2/2317:
4 locks held by dhcpcd/2392:
2 locks held by getty/2412:
#0: ffff888102f24098
(&tty->ldisc_sem
){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc900000452f0
(&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
6 locks held by kworker/0:4/5266:
#0: ffff88810ce7a538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
, at: set_work_data kernel/workqueue.c:643 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc90001747db0
((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff888105f09190
(
&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3:
ffff888107709190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
ffff888107709190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x4b0 drivers/base/dd.c:1005
#4:
ffff88813cd3a160
(&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:837 [inline]
, at: __device_attach+0x76/0x4b0 drivers/base/dd.c:1005
#5: ffffffff88d21868
(rtnl_mutex
){+.+.}-{3:3}, at: register_netdev+0x15/0x50 net/core/dev.c:10211
3 locks held by kworker/1:5/5307:
#0:
ffff888109b77138
((wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
, at: set_work_data kernel/workqueue.c:643 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc90001767db0
((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffffffff88d21868
(rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4630
6 locks held by kworker/1:0/10062:
#0: ffff88810ce7a538
(
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
(wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1:
ffffc9000e05fdb0 (
(work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2:
ffff888105b79190
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
(&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3:
ffff888101311190
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
(&dev->mutex){....}-{3:3}, at: usb_disconnect+0xff/0x8a0 drivers/usb/core/hub.c:2229
#4:
ffff888112e7e160 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:837 [inline]
, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
#5: ffffffff88d21868
(rtnl_mutex
){+.+.}-{3:3}
, at: unregister_netdev+0x12/0x30 net/core/dev.c:10955
3 locks held by kworker/0:0/10947:
#0:
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
ffff888109b77138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000f6d7db0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2:
ffffffff88d21868
(rtnl_mutex){+.+.}-{3:3}
, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4630
4 locks held by kworker/0:2/18392:
#0: ffff88810ce7a538 ((wq_completion)usb_hub_wq
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
, at: set_work_data kernel/workqueue.c:643 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1:
ffffc9000180fdb0
((work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff888105b91190 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
){....}-{3:3}, at: hub_event+0x1c0/0x4ed0 drivers/usb/core/hub.c:5739
#3: ffff888105b944f0
(&port_dev->status_lock
){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3147 [inline]
){+.+.}-{3:3}, at: hub_event+0xbb9/0x4ed0 drivers/usb/core/hub.c:5792
3 locks held by kworker/0:6/27810:
#0: ffff888100070d38 ((wq_completion)events
){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1:
ffffc9000aea7db0 (
(work_completion)(&fw_work->work)
){+.+.}-{0:0}
, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2:
ffff888105f09190 (
&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3b1/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:1296
4 locks held by kworker/0:7/28826:
3 locks held by syz-executor.2/29075:
#0: ffffffff88687450
(minor_rwsem){++++}-{3:3}
, at: usb_open+0x28/0x2e0 drivers/usb/core/file.c:39
#1: ffffffff8871a108 (usblp_mutex
){+.+.}-{3:3}
, at: usblp_open+0x5c/0x450 drivers/usb/class/usblp.c:417
#2:
ffff888105b944f0
(&port_dev->status_lock
){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3147 [inline]
){+.+.}-{3:3}, at: usb_port_resume+0x2a9/0x17e0 drivers/usb/core/hub.c:3705
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc4-syzkaller-00110-gb4a4be847184 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x273/0x2d0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
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: 2392 Comm: dhcpcd Not tainted 6.4.0-rc4-syzkaller-00110-gb4a4be847184 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:mark_lock.part.0+0x53/0x1970 kernel/locking/lockdep.c:4615
Code: 24 48 c7 44 24 38 b3 8a b5 41 48 c1 eb 03 48 c7 44 24 40 08 dc 67 87 48 8d 04 13 48 c7 44 24 48 90 77 2c 81 c7 00 f1 f1 f1 f1 40 04 f1 f1 04 f2 c7 40 08 00 f2 f2 f2 c7 40 0c 00 f2 f2 f2 c7
RSP: 0018:ffffc90000007db0 EFLAGS: 00000806
RAX: fffff52000000fbd RBX: 1ffff92000000fbd RCX: 1ffffffff1699e76
RDX: dffffc0000000000 RSI: ffff88811cb144a8 RDI: ffff88811cb13a00
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff8b4c984f
R10: 0000000000000001 R11: 0000000000038b3d R12: ffff88811cb144a8
R13: 0000000000000002 R14: ffff88811cb14480 R15: 0000000000000000
FS: 00007f5a77f5f740(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd56519f48 CR3: 00000001135a6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_lock kernel/locking/lockdep.c:4620 [inline]
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4252
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4270 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4337 [inline]
lockdep_hardirqs_on_prepare+0x139/0x410 kernel/locking/lockdep.c:4289
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
__do_softirq+0x181/0x8e8 kernel/softirq.c:555
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu kernel/softirq.c:650 [inline]
irq_exit_rcu+0x11b/0x190 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1979 [inline]
RIP: 0010:vprintk_emit+0x3fe/0x600 kernel/printk/printk.c:2306
Code: 66 1b 00 48 85 db 0f 85 da 01 00 00 e8 6b 6a 1b 00 31 ff 4c 89 f6 e8 a1 66 1b 00 4d 85 f6 74 06 e8 57 6a 1b 00 fb f3 0f 1e fa 4d 6a 1b 00 45 31 c9 41 b8 01 00 00 00 31 c9 68 2a c0 2f 81 ba
RSP: 0018:ffffc900014c7368 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88811cb13a00 RSI: ffffffff812fc029 RDI: 0000000000000007
RBP: ffffc900014c73a0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000037
R13: ffff888104e75700 R14: 0000000000000200 R15: ffffc900014c73d0
dev_vprintk_emit drivers/base/core.c:4840 [inline]
dev_printk_emit+0xda/0x120 drivers/base/core.c:4851
__netdev_printk+0x1dd/0x470 net/core/dev.c:11263
netdev_err+0xdc/0x120 net/core/dev.c:11315
asix_set_sw_mii drivers/net/usb/asix_common.c:78 [inline]
asix_check_host_enable+0x19b/0x230 drivers/net/usb/asix_common.c:98
__asix_mdio_read+0x93/0x260 drivers/net/usb/asix_common.c:506
asix_phy_reset+0x108/0x1f0 drivers/net/usb/asix_devices.c:215
ax88178_reset+0x41f/0x13b0 drivers/net/usb/asix_devices.c:1126
usbnet_open+0xcc/0xbe0 drivers/net/usb/usbnet.c:887
__dev_open+0x297/0x4d0 net/core/dev.c:1415
__dev_change_flags+0x587/0x750 net/core/dev.c:8566
dev_change_flags+0x97/0x170 net/core/dev.c:8638
devinet_ioctl+0x15fb/0x1df0 net/ipv4/devinet.c:1150
inet_ioctl+0x33f/0x380 net/ipv4/af_inet.c:977
sock_do_ioctl+0xcc/0x230 net/socket.c:1201
sock_ioctl+0x1f8/0x680 net/socket.c:1318
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
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: 0033:0x7f5a7802dd49
Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8
RSP: 002b:00007fffb161e868 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5a77f5f6c0 RCX: 00007f5a7802dd49
RDX: 00007fffb162ea58 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 00007fffb163ec18 R08: 00007fffb162ea18 R09: 00007fffb162e9c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb162ea58 R14: 0000000000000028 R15: 0000000000008914