INFO: task kworker/1:1:26 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D
stack:24792 pid:26 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:3:4732 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:24576 pid:4732 ppid:2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/1:4:15291 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4 state:D
stack:24632 pid:15291 ppid:2 flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
linkwatch_event+0xe/0x60 net/core/link_watch.c:277
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 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/13:
#0: ffffffff8cf27670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27a30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
3 locks held by kworker/1:1/26:
#0: ffff8880287d6538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90000a1fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2:
ffffffff8e09f908
(
rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
1 lock held by khungtaskd/28:
#0:
ffffffff8cf274a0
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire+0x0/0x30
1 lock held by khugepaged/34:
#0:
ffffffff8cfd0aa8 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x570 mm/swap.c:852
5 locks held by kworker/u4:3/49:
#0: ffff88801425b138
((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1:
ffffc90000ba7d20
(
net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffffffff8e093650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:576
#3: ffffffff8e09f908 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xdb/0x630 net/core/dev.c:11377
#4: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#4: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
3 locks held by kworker/1:3/4732:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc9000364fd20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2:
ffffffff8e09f908 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
2 locks held by getty/4745:
#0: ffff8880290ae098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
3 locks held by kworker/0:4/5058:
#0: ffff8880287d6538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc9000459fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffffffff8e09f908 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
3 locks held by kworker/0:7/5063:
#0: ffff888012471d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc900045dfd20 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffffffff8e09f908 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xde0 net/wireless/reg.c:2455
2 locks held by kworker/u4:13/12891:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc9001497fd20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
2 locks held by kworker/u4:17/29851:
2 locks held by kworker/u4:19/30705:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90005affd20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
2 locks held by kworker/1:2/15284:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1:
ffffc90005067d20
(
(work_completion)(&rew->rew_work)
){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
7 locks held by kworker/0:2/15285:
3 locks held by kworker/1:4/15291:
#0: ffff888012470d38 ((wq_completion)events
){+.+.}-{0:0}
, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90005037d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffffffff8e09f908 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:277
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 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+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 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: 15285 Comm: kworker/0:2 Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: events uhid_device_add_worker
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:207
Code: 10 3b 78 7e 65 8b 15 11 3b 78 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 0c 16 00 00 00 74 2c 8b 91 e8 15 00 00 <83> fa 02 75 21 48 8b 91 f0 15 00 00 48 8b 32 48 8d 7e 01 8b 89 ec
RSP: 0018:ffffc9000529e9b8 EFLAGS: 00000246
RAX: ffffffff8aa96f18 RBX: 0000000000000003 RCX: ffff88802acd3b80
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: ffffc9000529ead0 R08: ffffffff8aa96f0e R09: 0000000000000000
R10: ffffc9000529ea40 R11: dffffc0000000001 R12: 0000000000000004
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffc9000529ee22
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7da89831b8 CR3: 000000002bf84000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
number+0x948/0xf90 lib/vsprintf.c:554
vsnprintf+0x153d/0x1d80 lib/vsprintf.c:2883
sprintf+0xda/0x120 lib/vsprintf.c:3021
print_time kernel/printk/printk.c:1327 [inline]
info_print_prefix+0x16b/0x300 kernel/printk/printk.c:1353
record_print_text kernel/printk/printk.c:1402 [inline]
printk_get_next_message+0x408/0xce0 kernel/printk/printk.c:2809
console_emit_next_record kernel/printk/printk.c:2844 [inline]
console_flush_all+0x3aa/0xd70 kernel/printk/printk.c:2933
console_unlock+0xff/0x270 kernel/printk/printk.c:3007
vprintk_emit+0xd5/0x1f0 kernel/printk/printk.c:2307
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4840
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4851
_dev_warn+0x122/0x170 drivers/base/core.c:4907
hid_parser_main+0x71b/0xaa0 drivers/hid/hid-core.c:632
hid_open_report+0xaf0/0x1490 drivers/hid/hid-core.c:1269
hid_parse include/linux/hid.h:1090 [inline]
hid_generic_probe+0x3d/0x80 drivers/hid/hid-generic.c:63
hid_device_probe+0x29c/0x3a0 drivers/hid/hid-core.c:2633
really_probe+0x294/0xc30 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:800
driver_probe_device+0x50/0x420 drivers/base/dd.c:830
__device_attach_driver+0x2d3/0x520 drivers/base/dd.c:958
bus_for_each_drv+0x24a/0x2d0 drivers/base/bus.c:457
__device_attach+0x32f/0x510 drivers/base/dd.c:1030
bus_probe_device+0x185/0x260 drivers/base/bus.c:532
device_add+0xb75/0xf60 drivers/base/core.c:3625
hid_add_device+0x3a9/0x510 drivers/hid/hid-core.c:2785
uhid_device_add_worker+0x44/0xf0 drivers/hid/uhid.c:73
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308