INFO: task init:1 blocked for more than 140 seconds.
      Not tainted 4.9.130+ #46
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
init            D23880     1      0 0x00000004
 ffff8801da5f8000 0000000000000000 ffff8801d4c68580 ffff8801da6b2f80
 ffff8801db721018 ffff8801da607598 ffffffff827f2d82 ffff8801da5f8000
 0000000000000000 0000000000000000 0000000000000000 ffff8801db7218f0
Call Trace:
 [<ffffffff827f42af>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff817e5065>] wait_transaction_locked+0x1a5/0x230 fs/jbd2/transaction.c:163
 [<ffffffff817e5538>] add_transaction_credits+0x408/0x980 fs/jbd2/transaction.c:191
 [<ffffffff817e5ef0>] start_this_handle+0x340/0xe40 fs/jbd2/transaction.c:361
 [<ffffffff817e7da6>] jbd2__journal_start+0x306/0x8b0 fs/jbd2/transaction.c:457
 [<ffffffff8178d8dc>] __ext4_journal_start_sb+0x10c/0x460 fs/ext4/ext4_jbd2.c:76
 [<ffffffff816e6016>] __ext4_journal_start fs/ext4/ext4_jbd2.h:318 [inline]
 [<ffffffff816e6016>] ext4_dirty_inode+0x56/0xa0 fs/ext4/inode.c:5614
 [<ffffffff8159d84e>] __mark_inode_dirty+0x10e/0x1090 fs/fs-writeback.c:2097
 [<ffffffff81561125>] generic_update_time+0x1a5/0x270 fs/inode.c:1637
 [<ffffffff81561ad2>] update_time fs/inode.c:1653 [inline]
 [<ffffffff81561ad2>] file_update_time+0x262/0x390 fs/inode.c:1864
 [<ffffffff8141213a>] __generic_file_write_iter+0x1ca/0x540 mm/filemap.c:2828
 [<ffffffff816b2fcd>] ext4_file_write_iter+0x63d/0xd70 fs/ext4/file.c:165
 [<ffffffff81508197>] new_sync_write fs/read_write.c:496 [inline]
 [<ffffffff81508197>] __vfs_write+0x3d7/0x580 fs/read_write.c:509
 [<ffffffff8150a9e7>] vfs_write+0x187/0x520 fs/read_write.c:557
 [<ffffffff8150e819>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff8150e819>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82803013>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by init/1:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] file_start_write include/linux/fs.h:2640 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] vfs_write+0x3eb/0x520 fs/read_write.c:556
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] ext4_file_write_iter+0x122/0xd70 fs/ext4/file.c:100
2 locks held by khungtaskd/24:
 #0:  (rcu_read_lock){......}, at: [<ffffffff8131b8dc>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff8131b8dc>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff813fe0a4>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
3 locks held by rs:main Q:Reg/1903:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff8156cacc>] __fdget_pos+0xac/0xd0 fs/file.c:781
 #1:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] file_start_write include/linux/fs.h:2640 [inline]
 #1:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] vfs_write+0x3eb/0x520 fs/read_write.c:556
 #2:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] inode_lock include/linux/fs.h:766 [inline]
 #2:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] ext4_file_write_iter+0x122/0xd70 fs/ext4/file.c:100
2 locks held by getty/2033:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff828010d2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff81d2af12>] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142
4 locks held by kworker/u4:3/2229:
 #0:  ("writeback"){++++.+}, at: [<ffffffff81130abc>] process_one_work+0x73c/0x1530 kernel/workqueue.c:2085
 #1:  ((&(&wb->dwork)->work)){+.+.+.}, at: [<ffffffff81130af4>] process_one_work+0x774/0x1530 kernel/workqueue.c:2089
 #2:  (&type->s_umount_key#32){++++++}, at: [<ffffffff81514840>] trylock_super+0x20/0xf0 fs/super.c:393
 #3:  (&sbi->s_journal_flag_rwsem){++++.+}, at: [<ffffffff81433a1f>] do_writepages+0xef/0x1d0 mm/page-writeback.c:2331
1 lock held by syz-executor1/4961:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/5815:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6272:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6338:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6408:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6577:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6793:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/6928:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/9750:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/10555:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/10688:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/10731:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/10748:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/11394:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/11429:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/11808:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/12950:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/13675:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/13697:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor1/14289:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
1 lock held by syz-executor4/14735:
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] sb_start_intwrite include/linux/fs.h:1620 [inline]
 #0:  (sb_internal){.+.+..}, at: [<ffffffff816e301d>] ext4_evict_inode+0x3fd/0x1230 fs/ext4/inode.c:240
2 locks held by syz-executor4/14814:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8157543f>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8157543f>] mnt_want_write+0x3f/0xb0 fs/namespace.c:391
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff815031c8>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff815031c8>] do_truncate2+0x128/0x1f0 fs/open.c:61
2 locks held by syz-executor4/14853:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8157543f>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8157543f>] mnt_want_write+0x3f/0xb0 fs/namespace.c:391
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff815031c8>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff815031c8>] do_truncate2+0x128/0x1f0 fs/open.c:61
2 locks held by syz-executor4/14854:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150113e>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150113e>] vfs_fallocate+0x2fe/0x620 fs/open.c:328
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff8178a3e6>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff8178a3e6>] ext4_fallocate+0x366/0x1e80 fs/ext4/extents.c:4974
2 locks held by syz-executor4/14856:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150113e>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150113e>] vfs_fallocate+0x2fe/0x620 fs/open.c:328
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff8178a3e6>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff8178a3e6>] ext4_fallocate+0x366/0x1e80 fs/ext4/extents.c:4974
2 locks held by syz-executor4/14857:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff815755c8>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff815755c8>] mnt_want_write_file+0x68/0x110 fs/namespace.c:449
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff81560ae4>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff81560ae4>] lock_two_nondirectories+0xd4/0xf0 fs/inode.c:981
2 locks held by syz-executor1/14851:
 #0:  (&mm->mmap_sem){++++++}, at: [<ffffffff810b2752>] __do_page_fault+0x272/0xa60 arch/x86/mm/fault.c:1335
 #1:  (sb_pagefaults){.+.+..}, at: [<ffffffff816e6564>] sb_start_pagefault include/linux/fs.h:1602 [inline]
 #1:  (sb_pagefaults){.+.+..}, at: [<ffffffff816e6564>] ext4_page_mkwrite+0x154/0xfe0 fs/ext4/inode.c:5764
3 locks held by syz-executor1/14852:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff8156cacc>] __fdget_pos+0xac/0xd0 fs/file.c:781
 #1:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] file_start_write include/linux/fs.h:2640 [inline]
 #1:  (sb_writers#4){.+.+.+}, at: [<ffffffff8150ac4b>] vfs_write+0x3eb/0x520 fs/read_write.c:556
 #2:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] inode_lock include/linux/fs.h:766 [inline]
 #2:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816b2ab2>] ext4_file_write_iter+0x122/0xd70 fs/ext4/file.c:100
2 locks held by syz-executor1/14855:
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff815755c8>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#4){.+.+.+}, at: [<ffffffff815755c8>] mnt_want_write_file+0x68/0x110 fs/namespace.c:449
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816ec4a7>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&sb->s_type->i_mutex_key#9){++++++}, at: [<ffffffff816ec4a7>] ext4_ioctl+0x1787/0x3620 fs/ext4/ioctl.c:663

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

NMI backtrace for cpu 0
CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.130+ #46
 ffff8801d9907d08 ffffffff81b36c89 0000000000000000 0000000000000000
 0000000000000000 0000000000000001 ffffffff81098180 ffff8801d9907d40
 ffffffff81b41d99 0000000000000000 0000000000000000 0000000000000003
Call Trace:
 [<ffffffff81b36c89>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b36c89>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81b41d99>] nmi_cpu_backtrace.cold.0+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81b41d2c>] nmi_trigger_cpumask_backtrace+0x12c/0x151 lib/nmi_backtrace.c:60
 [<ffffffff81098284>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff8131be6d>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff8131be6d>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8131be6d>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8131be6d>] watchdog+0x6ad/0xa20 kernel/hung_task.c:239
 [<ffffffff8114272d>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff828031dc>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14805 Comm: syz-executor4 Not tainted 4.9.130+ #46
task: ffff8801a1ae0000 task.stack: ffff8801a1520000
RIP: 0010:[<ffffffff817b99ad>] 
c [<ffffffff817b99ad>] ext_depth fs/ext4/ext4_extents.h:189 [inline]
RIP: 0010:[<ffffffff817b99ad>] 
c [<ffffffff817b99ad>] mext_check_coverage.constprop.2+0x18d/0x400 fs/ext4/move_extent.c:109
RSP: 0018:ffff8801a15276b0  EFLAGS: 00000a07
RAX: dffffc0000000000 RBX: ffff8801d293e180 RCX: ffffc90003b60000
RDX: 0000000000000000 RSI: ffffffff817b998d RDI: ffff88019d930006
RBP: ffff8801a1527760 R08: 000000000000000c R09: ffff8801a1527390
R10: ffffed00342a4e65 R11: ffff8801a152732f R12: 000000000056209e
R13: ffff8801a15278f8 R14: ffff88019d9301f0 R15: 0000000000008002
FS:  00007f202dea5700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc9909ac084 CR3: 00000001c8a24000 CR4: 00000000001606b0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Stack:
 0000000000000000
c 1ffff100342a4edb
c ffff88019d930006
c ffffffff07000246
c
 ffff88019d930000
c 0000000041b58ab3
c ffffffff82e42a8f
c ffffffff817b9820
c
 ffff88019d9369c0
c ffff8801d293e180
c ffffea0006113d80
c ffff8801a1527730
c
Call Trace:
 [<ffffffff817bb48b>] move_extent_per_page fs/ext4/move_extent.c:333 [inline]
 [<ffffffff817bb48b>] ext4_move_extents+0x17bb/0x2a50 fs/ext4/move_extent.c:681
 [<ffffffff816ed51c>] ext4_ioctl+0x27fc/0x3620 fs/ext4/ioctl.c:594
 [<ffffffff81546c3c>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff81546c3c>] file_ioctl fs/ioctl.c:493 [inline]
 [<ffffffff81546c3c>] do_vfs_ioctl+0x1ac/0x11a0 fs/ioctl.c:677
 [<ffffffff81547cbf>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<ffffffff81547cbf>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82803013>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
c45 
c00 
c00 
c00 
c00 
c00 
ce8 
ce3 
c18 
cb6 
cff 
c48 
c8b 
c85 
c70 
cff 
cff 
cff 
c48 
c8d 
c78 
c06 
c48 
cb8 
c00 
c00 
c00 
c00 
c00 
cfc 
cff 
cdf 
c48 
c89 
cfa 
c48 
cc1 
cea 
c03 
c0f 
cb6 
c14 
c02 
c<48> 
c89 
cf8 
c83 
ce0 
c07 
c83 
cc0 
c01 
c38 
cd0 
c7c 
c08 
c84 
cd2 
c0f 
c85 
cd4 
c01 
c00 
c00 
c