request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-3, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-3, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-3, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-3, throttling... request_module: kmod_concurrent_max (0) close to 0 (max_modprobes: 50), for module net-pf-3, throttling... INFO: task kworker/u4:9:12467 blocked for more than 140 seconds. Not tainted 4.14.115+ #64 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:9 D26776 12467 2 0x80000000 Workqueue: netns cleanup_net Call Trace: schedule+0x92/0x1c0 kernel/sched/core.c:3498 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893 cleanup_net+0x136/0x860 net/core/net_namespace.c:450 process_one_work+0x7c6/0x1510 kernel/workqueue.c:2134 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2271 kthread+0x310/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Showing all locks held in the system: 2 locks held by kworker/u4:0/5: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [<00000000dfaadc6c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 2 locks held by kworker/u4:1/64: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 1 lock held by rsyslogd/1649: #0: (&f->f_pos_lock){+.+.}, at: [<000000009f6b314f>] __fdget_pos+0xa6/0xc0 fs/file.c:769 2 locks held by getty/1777: #0: (&tty->ldisc_sem){++++}, at: [<00000000a60c7719>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&ldata->atomic_read_lock){+.+.}, at: [<000000001bddd352>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 2 locks held by kworker/u4:3/1875: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:5/2071: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:7/2187: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 3 locks held by kworker/u4:9/12467: #0: ("%s""netns"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: (net_cleanup_work){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 #2: (net_mutex){+.+.}, at: [<00000000df91c943>] cleanup_net+0x136/0x860 net/core/net_namespace.c:450 2 locks held by kworker/u4:10/12472: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:11/12484: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:12/12493: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:13/12501: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:14/12506: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:15/12514: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:16/12521: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:17/12525: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:20/12539: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:23/12558: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:25/12573: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:26/12575: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:28/14049: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:29/14051: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:30/21467: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:33/21515: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:35/21541: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:36/21547: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:38/21598: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:39/21611: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:40/21630: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:41/21644: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:42/21660: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:44/21698: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:45/21706: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:47/21768: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:48/21784: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:51/21894: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:53/22745: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:54/26481: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:55/11668: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:56/11683: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:57/11687: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:58/11706: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:60/11743: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:61/11746: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 2 locks held by kworker/u4:62/11747: #0: ("events_unbound"){+.+.}, at: [<00000000dd5394dc>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105 #1: ((&sub_info->work)){+.+.}, at: [<0000000065ffa22b>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109 1 lock held by init/24028: #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open_by_driver drivers/tty/tty_io.c:1937 [inline] #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open+0x350/0x990 drivers/tty/tty_io.c:2021 1 lock held by init/24038: #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open_by_driver drivers/tty/tty_io.c:1937 [inline] #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open+0x350/0x990 drivers/tty/tty_io.c:2021 1 lock held by init/24191: #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open_by_driver drivers/tty/tty_io.c:1937 [inline] #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open+0x350/0x990 drivers/tty/tty_io.c:2021 1 lock held by init/24353: #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open_by_driver drivers/tty/tty_io.c:1937 [inline] #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open+0x350/0x990 drivers/tty/tty_io.c:2021 1 lock held by init/24751: #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open_by_driver drivers/tty/tty_io.c:1937 [inline] #0: (tty_mutex){+.+.}, at: [<00000000c84c185d>] tty_open+0x350/0x990 drivers/tty/tty_io.c:2021 1 lock held by modprobe/26459: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26461: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26465: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26466: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26467: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26469: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26471: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26472: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26475: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26476: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26477: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26480: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26483: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26484: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26485: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26486: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26488: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26490: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 1 lock held by modprobe/26492: #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] i_mmap_lock_write include/linux/fs.h:470 [inline] #0: (&mapping->i_mmap_rwsem){++++}, at: [<00000000bf1055da>] unlink_file_vma+0x6e/0xa0 mm/mmap.c:158 2 locks held by modprobe/26493: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26494: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26495: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26496: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26497: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26498: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26499: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26500: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26501: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26502: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26503: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26504: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26506: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26507: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26508: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26509: #0: (&mm->mmap_sem){++++}, at: [<00000000de808bf8>] vm_mmap_pgoff+0x147/0x1c0 mm/util.c:331 #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] i_mmap_lock_write include/linux/fs.h:470 [inline] #1: (&mapping->i_mmap_rwsem){++++}, at: [<0000000046c6fbb9>] vma_link+0x92/0x160 mm/mmap.c:613 2 locks held by modprobe/26510: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26511: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26512: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26513: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 2 locks held by modprobe/26514: #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){++++}, at: [<00000000f8d2c225>] blocking_notifier_call_chain+0x63/0x90 kernel/notifier.c:325 #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier drivers/misc/uid_sys_stats.c:633 [inline] #1: (uid_lock){+.+.}, at: [<0000000047619e7a>] process_notifier+0x84/0x633 drivers/misc/uid_sys_stats.c:622 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.115+ #64 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x10e lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.115+ #64 task: 000000009a48432e task.stack: 0000000075087812 RIP: 0010:separate_irq_context kernel/locking/lockdep.c:3103 [inline] RIP: 0010:__lock_acquire+0x636/0x3fa0 kernel/locking/lockdep.c:3478 RSP: 0018:ffff8881daa4f980 EFLAGS: 00000046 RAX: af69de341f8c9c0a RBX: 0000000000000001 RCX: 1ffff1103b5473f5 RDX: 0000000000000000 RSI: ffff8881daa39fd8 RDI: ffffffff9e35a910 RBP: ffff8881daa4fb38 R08: 0000000000000001 R09: 00000000000c2001 R10: ffff8881daa39fd8 R11: 0000000000000000 R12: ffff8881daa39ff0 R13: 0000000000000001 R14: 0000000000000001 R15: ffff8881daa39780 FS: 0000000000000000(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000165c26002 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: Code: 76 27 00 00 48 8b 4c 24 70 49 89 02 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 0f b6 14 11 84 d2 74 09 80 fa 03 0f 8e 7a 27 00 00 <41> 8b 97 28 08 00 00 85 d2 74 77 48 8b 7c 24 78 48 8d 14 92 4c