IPVS: ftp: loaded support on port[0] = 21
chnl_net:caif_netlink_parms(): no params data found
batman_adv: batadv0: Interface deactivated: batadv_slave_0
Bluetooth: hci3: command 0x0409 tx timeout
INFO: task segctord:10365 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
batman_adv: batadv0: Removing interface: batadv_slave_0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
segctord        D30088 10365      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
 rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
 __down_write arch/x86/include/asm/rwsem.h:142 [inline]
 down_write+0x4f/0x90 kernel/locking/rwsem.c:72
 nilfs_transaction_lock+0x1fb/0x8b0 fs/nilfs2/segment.c:362
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2479 [inline]
 nilfs_segctor_thread+0x3c0/0xf50 fs/nilfs2/segment.c:2563
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
batman_adv: batadv0: Interface deactivated: batadv_slave_1
INFO: task segctord:10769 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
batman_adv: batadv0: Removing interface: batadv_slave_1
segctord        D29872 10769      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
 rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
 __down_write arch/x86/include/asm/rwsem.h:142 [inline]
 down_write+0x4f/0x90 kernel/locking/rwsem.c:72
 nilfs_transaction_lock+0x1fb/0x8b0 fs/nilfs2/segment.c:362
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2479 [inline]
 nilfs_segctor_thread+0x3c0/0xf50 fs/nilfs2/segment.c:2563
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Showing all locks held in the system:
device bridge_slave_1 left promiscuous mode
3 locks held by kworker/1:0/19:
 #0: 00000000c4b54bea ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
bridge0: port 2(bridge_slave_1) entered disabled state
 #1: 00000000d6ecebf6 ((linkwatch_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
 #2: 000000003387916a (rtnl_mutex){+.+.}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:236
1 lock held by khungtaskd/1571:
 #0: 00000000a40b2177 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
5 locks held by kworker/u4:5/6990:
 #0: 00000000b3749962 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 0000000047c3f5c8 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
 #2: 00000000374490a6 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521
 #3: 000000003387916a (rtnl_mutex){+.+.}, at: rtnl_lock_unregistering net/core/dev.c:9748 [inline]
 #3: 000000003387916a (rtnl_mutex){+.+.}, at: default_device_exit_batch+0xea/0x3c0 net/core/dev.c:9786
 #4: 000000004a34300b (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
 #4: 000000004a34300b (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667
1 lock held by in:imklog/7781:
 #0: 00000000a8f04eb8 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
3 locks held by kworker/0:4/9347:
 #0: 00000000c4b54bea ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 0000000051e7bfdb (deferred_process_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
 #2: 000000003387916a (rtnl_mutex){+.+.}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150
5 locks held by syz-executor.1/10358:
1 lock held by segctord/10365:
 #0: 000000003d28f400 (&nilfs->ns_segctor_sem){++++}, at: nilfs_transaction_lock+0x1fb/0x8b0 fs/nilfs2/segment.c:362
6 locks held by syz-executor.2/10765:
1 lock held by segctord/10769:
 #0: 00000000e86d47ed (&nilfs->ns_segctor_sem){++++}, at: nilfs_transaction_lock+0x1fb/0x8b0 fs/nilfs2/segment.c:362
2 locks held by kworker/0:1/15182:
 #0: 0000000090900cf6 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 00000000076b298e ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
1 lock held by syz-executor.5/15355:
 #0: 000000003387916a (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 000000003387916a (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779

=============================================

device bridge_slave_0 left promiscuous mode
NMI backtrace for cpu 1
CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
bridge0: port 1(bridge_slave_0) entered disabled state
 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x991/0xe60 kernel/hung_task.c:287
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15182 Comm: kworker/0:1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: rcu_gp wait_rcu_exp_gp
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:693 [inline]
RIP: 0010:register_lock_class+0x1ce/0x11c0 kernel/locking/lockdep.c:749
Code: c1 e8 03 80 3c 28 00 0f 85 bc 0b 00 00 4d 8b 24 24 4d 85 e4 0f 84 1a 02 00 00 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 80 3c 28 00 <0f> 85 a6 0b 00 00 4d 3b 6c 24 20 75 c5 49 8d bc 24 40 01 00 00 48
RSP: 0018:ffff8880b36077b0 EFLAGS: 00000046
RAX: 1ffffffff19bf792 RBX: ffff8880b3607b90 RCX: 0000000000000000
RDX: 1ffffffff19ab7df RSI: 0000000000000000 RDI: ffffffff8cdfbc90
RBP: dffffc0000000000 R08: 0000000000000000 R09: 1ffff110166c0efe
R10: ffffffff8d243760 R11: 0000000000000000 R12: ffffffff8cdfbc70
R13: ffffffff8d245600 R14: 1ffff110166c0efe R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefc8baf000 CR3: 00000000af212000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3304
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 del_timer_sync+0xab/0x270 kernel/time/timer.c:1295
 schedule_timeout+0x4d7/0xfe0 kernel/time/timer.c:1819
 synchronize_sched_expedited_wait kernel/rcu/tree_exp.h:529 [inline]
 rcu_exp_wait_wake+0x2ff/0x480 kernel/rcu/tree_exp.h:597
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415