INFO: task kworker/1:1:23 blocked for more than 120 seconds.
Not tainted 4.16.0-rc7+ #368
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:1 D17304 23 2 0x80000000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:2862 [inline]
__schedule+0x8fb/0x1ec0 kernel/sched/core.c:3440
schedule+0xf5/0x430 kernel/sched/core.c:3499
schedule_preempt_disabled+0x10/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0xaad/0x1a80 kernel/locking/mutex.c:893
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4419
process_one_work+0xc47/0x1bb0 kernel/workqueue.c:2113
worker_thread+0x223/0x1990 kernel/workqueue.c:2247
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406
Showing all locks held in the system:
3 locks held by kworker/1:1/23:
#0: ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: [<000000003b33d4c4>] work_static include/linux/workqueue.h:198 [inline]
#0: ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: [<000000003b33d4c4>] set_work_data kernel/workqueue.c:619 [inline]
#0: ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: [<000000003b33d4c4>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: [<000000003b33d4c4>] process_one_work+0xb12/0x1bb0 kernel/workqueue.c:2084
#1: ((addr_chk_work).work){+.+.}, at: [<000000007bcd42bd>] process_one_work+0xb89/0x1bb0 kernel/workqueue.c:2088
#2: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
2 locks held by khungtaskd/867:
#0: (rcu_read_lock){....}, at: [<00000000b11658cd>] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline]
#0: (rcu_read_lock){....}, at: [<00000000b11658cd>] watchdog+0x1c5/0xd60 kernel/hung_task.c:249
#1: (tasklist_lock){.+.+}, at: [<00000000de3cbfb7>] debug_show_all_locks+0xd3/0x3d0 kernel/locking/lockdep.c:4470
2 locks held by getty/4388:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4389:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4390:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4391:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4392:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4393:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4394:
#0: (&tty->ldisc_sem){++++}, at: [<00000000adf2cc84>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000462f25ad>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
1 lock held by syzkaller546463/4418:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4441:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4449:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4457:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4465:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4473:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4481:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4489:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4497:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4505:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4513:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4521:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4529:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4537:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4545:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4553:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4431:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4437:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4445:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4452:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4460:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4468:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4476:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4484:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4492:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4500:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4508:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4516:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4524:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4532:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4540:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4548:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4432:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4438:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4446:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4454:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4462:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4470:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4478:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4486:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4494:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4502:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4510:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4518:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4526:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4534:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4542:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4550:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4430:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4439:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4448:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4455:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4464:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4471:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4480:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4487:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4495:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4503:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4512:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4519:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4528:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4535:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4544:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4551:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
2 locks held by syzkaller546463/4427:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
#1: (ipvs->sync_mutex){+.+.}, at: [<0000000030031704>] do_ip_vs_set_ctl+0x10f8/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2388
1 lock held by syzkaller546463/4440:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4447:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4456:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4463:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4472:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4479:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4488:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4496:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4504:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4511:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4520:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4527:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4536:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4543:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4552:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4422:
#0: (sb_writers#5){.+.+}, at: [<00000000ab47729c>] __wake_up_common_lock+0x190/0x310 kernel/sched/wait.c:124
1 lock held by syzkaller546463/4429:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4434:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4442:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4450:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4458:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4466:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4474:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4482:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4490:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4498:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4506:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4514:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4522:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4530:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4538:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4546:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4423:
#0: (&pipe->mutex/1){+.+.}, at: [<00000000eb98de0f>] __pipe_lock fs/pipe.c:83 [inline]
#0: (&pipe->mutex/1){+.+.}, at: [<00000000eb98de0f>] pipe_write+0xae/0xd60 fs/pipe.c:366
1 lock held by syzkaller546463/4426:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4436:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4444:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4453:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4461:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4469:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4477:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4485:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4493:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4501:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4509:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4517:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4525:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4533:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4541:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4549:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4428:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4435:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4443:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4451:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4459:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4467:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4475:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4483:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4491:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4499:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4507:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4515:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4523:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4531:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by syzkaller546463/4539:
#0: (ipvs->sync_mutex){+.+.}, at: [<000000000cd1961d>] do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
1 lock held by syzkaller546463/4547:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
1 lock held by ipvs-b:0:0/4433:
#0: (rtnl_mutex){+.+.}, at: [<00000000a7b77366>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 867 Comm: khungtaskd Not tainted 4.16.0-rc7+ #368
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x24d lib/dump_stack.c:53
nmi_cpu_backtrace+0x1d2/0x210 lib/nmi_backtrace.c:103
nmi_trigger_cpumask_backtrace+0x123/0x180 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline]
check_hung_task kernel/hung_task.c:132 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline]
watchdog+0x90c/0xd60 kernel/hung_task.c:249
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4420 Comm: syzkaller546463 Not tainted 4.16.0-rc7+ #368
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x9dd/0x3e00 kernel/locking/lockdep.c:3290
RSP: 0018:ffff8801afd37440 EFLAGS: 00000007
RAX: 0000000000000000 RBX: ffff8801afd0c920 RCX: 0000000000000000
RDX: 1ffff10035fa191e RSI: 0000000007e4bb03 RDI: ffffed0035fa6ef0
RBP: ffff8801afd377d0 R08: 1ffff10035fa6e65 R09: 000000000000000e
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000007b21
R13: 0583f03823a673b4 R14: ffffffff887b5088 R15: ffff8801afd0c080
FS: 0000000000a7c880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001d58000 CR3: 00000001b01d1006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline]
read_seqcount_begin include/linux/seqlock.h:164 [inline]
current_kernel_time64+0xf1/0x2f0 kernel/time/timekeeping.c:2197
current_kernel_time include/linux/timekeeping32.h:17 [inline]
current_time+0x18/0xc0 fs/inode.c:2122
file_update_time+0x141/0x5b0 fs/inode.c:1863
pipe_write+0x6cd/0xd60 fs/pipe.c:481
call_write_iter include/linux/fs.h:1782 [inline]
new_sync_write fs/read_write.c:469 [inline]
__vfs_write+0x684/0x970 fs/read_write.c:482
vfs_write+0x189/0x510 fs/read_write.c:544
SYSC_write fs/read_write.c:589 [inline]
SyS_write+0xef/0x220 fs/read_write.c:581
do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x445959
RSP: 002b:00007fffccce6a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000006dada0 RCX: 0000000000445959
RDX: 0000000000000012 RSI: 00000000004ade66 RDI: 0000000000000001
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dad8c
R13: 00000000006dada0 R14: 0000000000000003 R15: 0000000000000001
Code: 03 8d 00 fd ff ff 31 c0 48 8d 79 08 48 c7 01 00 00 00 00 48 c7 41 50 00 00 00 00 48 83 e7 f8 48 29 f9 83 c1 58 c1 e9 03 f3 48 ab <48> 81 c4 60 03 00 00 44 89 d0 5b 41 5a 41 5c 41 5d 41 5e 41 5f