======================================
| [    9.270080][  T180] softirqs last disabled at (10754): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [    9.270082][  T180] Preemption disabled at:
| [    9.270083][  T180] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.270092][  T180] Tainted: [W]=WARN
[    9.270093][  T180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.270095][  T180] Call Trace:
[    9.270097][  T180]  <TASK>
[    9.270098][  T180]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.270104][  T180]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.270107][  T180]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.270111][  T180]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.270115][  T180]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.270121][  T180]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.270123][  T180]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.270128][  T180]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.270131][  T180]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.270134][  T180]  put_chars (drivers/char/virtio_console.c:1176)
[    9.270137][  T180]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.270138][  T180]  ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3))
[    9.270142][  T180]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[    9.270145][  T180]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.270148][  T180]  ? mark_usage (kernel/locking/lockdep.c:4690)
[    9.270150][  T180]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.270151][  T180]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.270156][  T180]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.270157][  T180]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.270161][  T180]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.270165][  T180]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.270168][  T180]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.270170][  T180]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.270173][  T180]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.270177][  T180]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.270181][  T180]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.270185][  T180]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.270187][  T180]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.270192][  T180]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.270194][  T180]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.270196][  T180]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.270198][  T180]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.270202][  T180]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.270204][  T180]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.270207][  T180]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.270213][  T180]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.270217][  T180]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.270221][  T180]  _printk (kernel/printk/printk.c:2504)
[    9.270224][  T180]  ? snapshot_read.cold (user.c:?)
[    9.270228][  T180]  ? in6_dev_get (./include/linux/rcupdate.h:882 ./include/net/addrconf.h:410)
[    9.270232][  T180]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[    9.270235][  T180]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[    9.270238][  T180]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[    9.270240][  T180]  ? netdev_notice (net/core/dev.c:13194)
[    9.270243][  T180]  ? ref_tracker_alloc (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:252 ./include/linux/refcount.h:283 ./include/linux/refcount.h:366 ./include/linux/refcount.h:383 lib/ref_tracker.c:265)
[    9.270247][  T180]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[    9.270251][  T180]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    9.270255][  T180]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[    9.270260][  T180]  dev_set_allmulti (net/core/dev_api.c:315)
[    9.270264][  T180]  vif_add (net/ipv4/ipmr.c:875)
[    9.270265][  T180]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[    9.270268][  T180]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[    9.270272][  T180]  ? pim_rcv (net/ipv4/ipmr.c:2435)
[    9.270275][  T180]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.270276][  T180]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.270282][  T180]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.270285][  T180]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[    9.270289][  T180]  ip_mroute_setsockopt (net/ipv4/ipmr.c:1491 (discriminator 1))
[    9.270292][  T180]  ? ipmr_rtm_route (net/ipv4/ipmr.c:2967)
[    9.270294][  T180]  ? __mark_inode_dirty (./include/linux/spinlock.h:347 fs/fs-writeback.c:2773)
[    9.270298][  T180]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[    9.270301][  T180]  ? __mark_inode_dirty (./include/linux/spinlock.h:401 fs/fs-writeback.c:2835)
[    9.270303][  T180]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5593)
[    9.270307][  T180]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.270311][  T180]  do_ip_setsockopt (net/ipv4/ip_sockglue.c:952)
[    9.270315][  T180]  ? file_update_time_flags (fs/inode.c:2484)
[    9.270319][  T180]  ? ip_sock_set_tos (net/ipv4/ip_sockglue.c:609)
[    9.270322][  T180]  ? fault_dirty_shared_page (mm/memory.c:3858)
[    9.270325][  T180]  ? do_pte_missing (mm/memory.c:6092 mm/memory.c:6138 mm/memory.c:4700)
[    9.270329][  T180]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[    9.270331][  T180]  ? handle_pte_fault (mm/memory.c:6558)
[    9.270335][  T180]  ip_setsockopt (net/ipv4/ip_sockglue.c:1421)
[    9.270339][  T180]  raw_setsockopt (net/ipv4/raw.c:851)
[    9.270342][  T180]  ? raw_bind (net/ipv4/raw.c:733)
[    9.270344][  T180]  ? __handle_mm_fault (mm/memory.c:6707)
[    9.270346][  T180]  ? __pmd_alloc (./include/linux/mm.h:1762)
[    9.270350][  T180]  do_sock_setsockopt (net/socket.c:2397)
[    9.270355][  T180]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[    9.270359][  T180]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.270362][  T180]  __sys_setsockopt (net/socket.c:2422)
[    9.270367][  T180]  __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425)
[    9.270369][  T180]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.270372][  T180]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.270375][  T180]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[    9.270376][  T180]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.270378][  T180]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.270381][  T180]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.270383][  T180] RIP: 0033:0x7fc505d9c2de
[    9.270387][  T180] Code: 55 48 63 c9 48 63 ff 45 89 c9 48 89 e5 48 83 ec 08 6a 2c e8 94 72 f7 ff c9 c3 66 90 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 e1
All code
========
   0:	55                   	push   %rbp
   1:	48 63 c9             	movslq %ecx,%rcx
   4:	48 63 ff             	movslq %edi,%rdi
   7:	45 89 c9             	mov    %r9d,%r9d
   a:	48 89 e5             	mov    %rsp,%rbp
   d:	48 83 ec 08          	sub    $0x8,%rsp
  11:	6a 2c                	push   $0x2c
  13:	e8 94 72 f7 ff       	call   0xfffffffffff772ac
  18:	c9                   	leave
  19:	c3                   	ret
  1a:	66 90                	xchg   %ax,%ax
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	e1                   	.byte 0xe1

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	e1                   	.byte 0xe1
[    9.270389][  T180] RSP: 002b:00007ffed7d79bb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000036
[    9.270391][  T180] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc505d9c2de
[    9.270393][  T180] RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000006
[    9.270394][  T180] RBP: 00007ffed7d79c30 R08: 0000000000000010 R09: 0000000000000000
[    9.270395][  T180] R10: 00007ffed7d79c6c R11: 0000000000000206 R12: 00007ffed7d7a338
[    9.270395][  T180] R13: 0000000000000001 R14: 00007fc505ee4000 R15: 000000000040be00
| [   10.319751][   T12] softirqs last disabled at (97396): mroute_clean_tables (net/ipv4/ipmr.c:1364 (discriminator 1))
| [   10.319754][   T12] Preemption disabled at:
| [   10.319754][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.319764][   T12] Tainted: [W]=WARN
[   10.319765][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.319767][   T12] Workqueue: netns cleanup_net
[   10.319770][   T12] Call Trace:
[   10.319772][   T12]  <TASK>
[   10.319774][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.319780][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.319782][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.319787][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.319791][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.319797][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.319799][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.319805][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.319813][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.319816][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   10.319819][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.319822][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.319828][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.319834][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.319837][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.319841][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.319845][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.319849][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.319851][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.319855][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.319857][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.319861][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.319866][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.319868][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.319873][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.319876][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.319878][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.319880][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.319884][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.319886][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.319890][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.319894][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.319896][   T12]  ? unwind_next_frame (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/linux/rcupdate.h:1216 (discriminator 2) arch/x86/kernel/unwind_orc.c:495 (discriminator 2))
[   10.319900][   T12]  ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495)
[   10.319903][   T12]  _printk (kernel/printk/printk.c:2504)
[   10.319907][   T12]  ? snapshot_read.cold (user.c:?)
[   10.319909][   T12]  ? stack_access_ok (./arch/x86/include/asm/stacktrace.h:55)
[   10.319913][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   10.319916][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   10.319920][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.319923][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   10.319927][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.319929][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.319932][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.319934][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   10.319938][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   10.319942][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   10.319946][   T12]  vif_delete (net/ipv4/ipmr.c:725)
[   10.319949][   T12]  ? ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   10.319953][   T12]  ? ipmr_cache_report (./include/linux/skbuff.h:3160)
[   10.319960][   T12]  mroute_clean_tables (net/ipv4/ipmr.c:1337)
[   10.319968][   T12]  ? rtm_to_ipmr_mfcc.constprop.0 (./include/net/netlink.h:1734 (discriminator 1))
[   10.319971][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.319974][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.319977][   T12]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3206 (discriminator 6))
[   10.319982][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:449)
[   10.319984][   T12]  ipmr_free_table (net/ipv4/ipmr.c:449)
[   10.319986][   T12]  ? mroute_clean_tables (./include/linux/rhashtable.h:122)
[   10.319992][   T12]  ipmr_net_exit_rtnl (net/ipv4/ipmr.c:287 net/ipv4/ipmr.c:3354)
[   10.319996][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   10.320001][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   10.320003][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.320008][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   10.320012][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.320016][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.320017][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.320022][   T12]  process_one_work (kernel/workqueue.c:3387)
[   10.320028][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   10.320032][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.320039][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   10.320047][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   10.320049][   T12]  kthread (kernel/kthread.c:436)
[   10.320051][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.320054][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   10.320057][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.320061][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   10.320064][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.320068][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   10.320070][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   11.432656][  T280] softirqs last disabled at (9366): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   11.432658][  T280] Preemption disabled at:
| [   11.432659][  T280] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.432668][  T280] Tainted: [W]=WARN
[   11.432669][  T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.432671][  T280] Call Trace:
[   11.432673][  T280]  <TASK>
[   11.432674][  T280]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.432679][  T280]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.432682][  T280]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.432686][  T280]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.432690][  T280]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.432696][  T280]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.432698][  T280]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.432704][  T280]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.432706][  T280]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.432709][  T280]  put_chars (drivers/char/virtio_console.c:1176)
[   11.432711][  T280]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   11.432713][  T280]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.432716][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.432720][  T280]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.432724][  T280]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.432727][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.432728][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.432733][  T280]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.432734][  T280]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.432737][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.432740][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.432744][  T280]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.432748][  T280]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.432750][  T280]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.432753][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.432755][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.432759][  T280]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.432763][  T280]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.432765][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.432770][  T280]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.432773][  T280]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.432775][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.432777][  T280]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.432781][  T280]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.432783][  T280]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.432786][  T280]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.432789][  T280]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.432795][  T280]  _printk (kernel/printk/printk.c:2504)
[   11.432799][  T280]  ? snapshot_read.cold (user.c:?)
[   11.432801][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.432804][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.432806][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.432809][  T280]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.432817][  T280]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.432820][  T280]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.432823][  T280]  ? netdev_notice (net/core/dev.c:13194)
[   11.432824][  T280]  ? ref_tracker_alloc (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:252 ./include/linux/refcount.h:283 ./include/linux/refcount.h:366 ./include/linux/refcount.h:383 lib/ref_tracker.c:265)
[   11.432828][  T280]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[   11.432834][  T280]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   11.432838][  T280]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   11.432842][  T280]  dev_set_allmulti (net/core/dev_api.c:315)
[   11.432846][  T280]  ? dev_get_by_index (./include/linux/rcupdate.h:882 net/core/dev.c:1025)
[   11.432849][  T280]  mif6_add (net/ipv6/ip6mr.c:943)
[   11.432852][  T280]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.432857][  T280]  ? mr6_netlink_event (./include/net/net_namespace.h:422 (discriminator 7))
[   11.432859][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.432862][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.432864][  T280]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.432871][  T280]  ip6_mroute_setsockopt (net/ipv6/ip6mr.c:1754 (discriminator 1))
[   11.432874][  T280]  ? ip6mr_sk_done (net/ipv6/ip6mr.c:1665 (discriminator 2))
[   11.432876][  T280]  ? validate_chain (kernel/locking/lockdep.c:154 (discriminator 5) kernel/locking/lockdep.c:202 (discriminator 5) kernel/locking/lockdep.c:3329 (discriminator 5) kernel/locking/lockdep.c:3924 (discriminator 5))
[   11.432881][  T280]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.432887][  T280]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.432889][  T280]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.432892][  T280]  do_ipv6_setsockopt (net/ipv6/ipv6_sockglue.c:397)
[   11.432898][  T280]  ? ipv6_set_opt_hdr (net/ipv6/ipv6_sockglue.c:343 (discriminator 1))
[   11.432902][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.432905][  T280]  ? __mark_inode_dirty (./include/linux/spinlock.h:401 fs/fs-writeback.c:2835)
[   11.432908][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5593)
[   11.432909][  T280]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.432912][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.432914][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.432918][  T280]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.432920][  T280]  ? preempt_count_add (./include/linux/ftrace.h:1177 kernel/sched/core.c:5970 kernel/sched/core.c:5967 kernel/sched/core.c:6000)
[   11.432922][  T280]  ? mnt_put_write_access_file (fs/namespace.c:556 fs/namespace.c:580 fs/namespace.c:577)
[   11.432924][  T280]  ? mnt_put_write_access_file (fs/namespace.c:558 (discriminator 1) fs/namespace.c:580 (discriminator 1) fs/namespace.c:577 (discriminator 1))
[   11.432926][  T280]  ? file_update_time_flags (fs/inode.c:2484)
[   11.432931][  T280]  ? fault_dirty_shared_page (mm/memory.c:3858)
[   11.432935][  T280]  ? do_pte_missing (mm/memory.c:6092 mm/memory.c:6138 mm/memory.c:4700)
[   11.432940][  T280]  ? ipv6_setsockopt (net/ipv6/ipv6_sockglue.c:980)
[   11.432942][  T280]  ipv6_setsockopt (net/ipv6/ipv6_sockglue.c:980)
[   11.432945][  T280]  rawv6_setsockopt (net/ipv6/raw.c:1048)
[   11.432948][  T280]  ? mksaveddirty_shift (./arch/x86/include/asm/pgtable.h:373)
[   11.432950][  T280]  ? raw6_seq_show (./include/net/raw.h:68)
[   11.432952][  T280]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   11.432956][  T280]  ? __pmd_alloc (./include/linux/mm.h:1762)
[   11.432959][  T280]  do_sock_setsockopt (net/socket.c:2397)
[   11.432964][  T280]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   11.432968][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.432972][  T280]  __sys_setsockopt (net/socket.c:2422)
[   11.432977][  T280]  __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425)
[   11.432979][  T280]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.432982][  T280]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.432984][  T280]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   11.432986][  T280]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.432987][  T280]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.432990][  T280]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.432992][  T280] RIP: 0033:0x7fc505d9c2de
[   11.432996][  T280] Code: 55 48 63 c9 48 63 ff 45 89 c9 48 89 e5 48 83 ec 08 6a 2c e8 94 72 f7 ff c9 c3 66 90 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 e1
All code
========
   0:	55                   	push   %rbp
   1:	48 63 c9             	movslq %ecx,%rcx
   4:	48 63 ff             	movslq %edi,%rdi
   7:	45 89 c9             	mov    %r9d,%r9d
   a:	48 89 e5             	mov    %rsp,%rbp
   d:	48 83 ec 08          	sub    $0x8,%rsp
  11:	6a 2c                	push   $0x2c
  13:	e8 94 72 f7 ff       	call   0xfffffffffff772ac
  18:	c9                   	leave
  19:	c3                   	ret
  1a:	66 90                	xchg   %ax,%ax
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	e1                   	.byte 0xe1

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	e1                   	.byte 0xe1
[   11.432998][  T280] RSP: 002b:00007ffed7d79b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[   11.433001][  T280] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc505d9c2de
[   11.433002][  T280] RDX: 00000000000000ca RSI: 0000000000000029 RDI: 0000000000000006
[   11.433003][  T280] RBP: 00007ffed7d79c30 R08: 000000000000000c R09: 0000000000000000
[   11.433004][  T280] R10: 00007ffed7d79c6c R11: 0000000000000246 R12: 00007ffed7d7a338


Finger prints:
mroute_clean_tables:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
fpu_clone:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars