IPVS: Unknown mcast interface: veth1
IPVS: Unknown mcast interface: veth1
IPVS: Unknown mcast interface: veth1
IPVS: Unknown mcast interface: veth1
IPVS: Unknown mcast interface: veth1
INFO: task init:13029 blocked for more than 120 seconds.
      Not tainted 4.9.94-g8683408 #3
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
init            D29000 13029      1 0x00000000
 ffff8801cab9c800 ffff8801ca649f80 ffff8801d8055f80 ffff8801d84c3000
 ffff8801db221b98 ffff8801d07c7570 ffffffff838c040d 0000000000000000
 ffff8801cab9d0ea ffff8801d07c76d0 0000000000000046 ffff8801db222468
Call Trace:
 [<ffffffff838c1a0f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3557
 [<ffffffff838cde21>] schedule_timeout+0x861/0xf70 kernel/time/timer.c:1768
 [<ffffffff838ca53e>] __down_common kernel/locking/semaphore.c:221 [inline]
 [<ffffffff838ca53e>] __down+0x12e/0x1f0 kernel/locking/semaphore.c:238
 [<ffffffff81229eee>] down+0x5e/0x80 kernel/locking/semaphore.c:61
 [<ffffffff812587ac>] console_lock+0x2c/0x80 kernel/printk/printk.c:2212
 [<ffffffff8125e01c>] console_device+0x1c/0xc0 kernel/printk/printk.c:2549
 [<ffffffff820013da>] tty_lookup_driver drivers/tty/tty_io.c:1994 [inline]
 [<ffffffff820013da>] tty_open_by_driver drivers/tty/tty_io.c:2039 [inline]
 [<ffffffff820013da>] tty_open+0x71a/0xe20 drivers/tty/tty_io.c:2116
 [<ffffffff8157c55d>] chrdev_open+0x22d/0x4c0 fs/char_dev.c:392
 [<ffffffff81567443>] do_dentry_open+0x703/0xc80 fs/open.c:766
 [<ffffffff8156ac2c>] vfs_open+0x11c/0x210 fs/open.c:879
 [<ffffffff815a1d68>] do_last fs/namei.c:3409 [inline]
 [<ffffffff815a1d68>] path_openat+0x758/0x3590 fs/namei.c:3533
 [<ffffffff815a8e67>] do_filp_open+0x197/0x270 fs/namei.c:3567
 [<ffffffff8156b63d>] do_sys_open+0x30d/0x5c0 fs/open.c:1072
 [<ffffffff8156b91d>] SYSC_open fs/open.c:1090 [inline]
 [<ffffffff8156b91d>] SyS_open+0x2d/0x40 fs/open.c:1085
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d1313>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/515:
 #0:  (rcu_read_lock){......}, at: [<ffffffff813646bc>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff813646bc>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81423bb0>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
1 lock held by rsyslogd/3650:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff815d565c>] __fdget_pos+0xac/0xd0 fs/file.c:781
2 locks held by getty/3746:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff838cf4b2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff82007082>] n_tty_read+0x202/0x16b0 drivers/tty/n_tty.c:2133
1 lock held by init/13029:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116
1 lock held by init/13031:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116
1 lock held by init/13033:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116
1 lock held by init/13034:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116
1 lock held by init/13035:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116
1 lock held by init/13607:
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open_by_driver drivers/tty/tty_io.c:2038 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<ffffffff8200112c>] tty_open+0x46c/0xe20 drivers/tty/tty_io.c:2116

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

NMI backtrace for cpu 0
CPU: 0 PID: 515 Comm: khungtaskd Not tainted 4.9.94-g8683408 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d80f7d08 ffffffff81d9b509 0000000000000000 0000000000000000
 0000000000000000 0000000000000001 ffffffff810b7d60 ffff8801d80f7d40
 ffffffff81da6837 0000000000000000 0000000000000000 0000000000000002
Call Trace:
 [<ffffffff81d9b509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9b509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81da6837>] nmi_cpu_backtrace.cold.2+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81da67ca>] nmi_trigger_cpumask_backtrace+0x12a/0x14f lib/nmi_backtrace.c:60
 [<ffffffff810b7e64>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff81364c54>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff81364c54>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff81364c54>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff81364c54>] watchdog+0x6b4/0xa20 kernel/hung_task.c:239
 [<ffffffff8119ad2d>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff838d14dc>] 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: 2358 Comm: udevd Not tainted 4.9.94-g8683408 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b96d9800 task.stack: ffff8801b9710000
RIP: 0010:[<ffffffff810d0b8d>] 
c [<ffffffff810d0b8d>] unwind_get_return_address_ptr arch/x86/include/asm/unwind.h:47 [inline]
RIP: 0010:[<ffffffff810d0b8d>] 
c [<ffffffff810d0b8d>] unwind_get_return_address+0x1d/0xb0 arch/x86/kernel/unwind_frame.c:12
RSP: 0018:ffff8801b9717860  EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: ffff8801b9717878 RCX: ffff8801b9717db8
RDX: 0000000000000000 RSI: ffff8801b9717da8 RDI: ffff8801b9717878
RBP: ffff8801b9717868 R08: ffffed00372e2f17 R09: ffff8801b9710000
R10: ffffed00372e2f16 R11: ffff8801b97178b7 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8801b96d9800 R15: ffff8801d876bc3f
FS:  00007fe02283e7a0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe022845000 CR3: 00000001b95aa000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801b9717900
c ffff8801b97178e0
c ffffffff8107addd
c 0000000000000001
c
 ffff8801b9710000
c ffff8801b9718000
c 0000000000000000
c 0000000000000002
c
 ffff8801b96d9800
c 0000000000000000
c ffff8801b9717da8
c 0d1dd7242b6edf2b
c
Call Trace:
 [<ffffffff8107addd>] __save_stack_trace+0x8d/0xf0 arch/x86/kernel/stacktrace.c:43
 [<ffffffff8107ae56>] save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 [<ffffffff815382e3>] save_stack+0x43/0xd0 mm/kasan/kasan.c:505
 [<ffffffff815386c7>] set_track mm/kasan/kasan.c:517 [inline]
 [<ffffffff815386c7>] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:609
 [<ffffffff81538c92>] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:547
 [<ffffffff815345be>] slab_post_alloc_hook mm/slab.h:417 [inline]
 [<ffffffff815345be>] slab_alloc_node mm/slub.c:2715 [inline]
 [<ffffffff815345be>] slab_alloc mm/slub.c:2723 [inline]
 [<ffffffff815345be>] kmem_cache_alloc+0xbe/0x290 mm/slub.c:2728
 [<ffffffff814f28ec>] anon_vma_chain_alloc mm/rmap.c:125 [inline]
 [<ffffffff814f28ec>] anon_vma_fork+0x1cc/0x4d0 mm/rmap.c:341
 [<ffffffff8112fc35>] dup_mmap kernel/fork.c:622 [inline]
 [<ffffffff8112fc35>] dup_mm kernel/fork.c:1150 [inline]
 [<ffffffff8112fc35>] copy_mm kernel/fork.c:1204 [inline]
 [<ffffffff8112fc35>] copy_process.part.51+0x4015/0x6330 kernel/fork.c:1670
 [<ffffffff811323d0>] copy_process kernel/fork.c:1497 [inline]
 [<ffffffff811323d0>] _do_fork+0x1b0/0xdc0 kernel/fork.c:1955
 [<ffffffff811330b7>] SYSC_clone kernel/fork.c:2065 [inline]
 [<ffffffff811330b7>] SyS_clone+0x37/0x50 kernel/fork.c:2059
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d1313>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
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c