======================================
| [   57.567019][ T1019] RCU nest depth: 0, expected: 0
| [   57.567234][ T1019] 2 locks held by tc/1019:
| [ 57.567418][ T1019] #0: ffffffffa0e09c08 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261)
| [ 57.567726][ T1019] #1: ffff88800bf3e990 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
[   57.568266][ T1019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   57.568475][ T1019] Call Trace:
[   57.568601][ T1019]  <TASK>
[ 57.568691][ T1019] dump_stack_lvl (lib/dump_stack.c:123)
[ 57.568865][ T1019] __might_resched (kernel/sched/core.c:8759)
[ 57.569309][ T1019] ? tc_new_tfilter (net/sched/cls_api.c:2383)
[ 57.569480][ T1019] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490)
[ 57.569645][ T1019] static_key_slow_inc (kernel/jump_label.c:191)
[ 57.569809][ T1019] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 57.569982][ T1019] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 57.570112][ T1019] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 57.570321][ T1019] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 57.570505][ T1019] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 57.570684][ T1019] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 57.570855][ T1019] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 57.571026][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 57.571197][ T1019] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 57.571368][ T1019] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 57.571499][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 57.571677][ T1019] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 57.571851][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 57.572026][ T1019] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 57.572224][ T1019] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 57.572388][ T1019] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[ 57.572564][ T1019] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 57.572729][ T1019] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 57.572891][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 57.573056][ T1019] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 57.573221][ T1019] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 57.573398][ T1019] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 57.573564][ T1019] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 57.573727][ T1019] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 57.573939][ T1019] ___sys_sendmsg (net/socket.c:2624)
[ 57.574100][ T1019] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 57.574266][ T1019] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 57.574443][ T1019] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 57.574622][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 57.574790][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 57.574959][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 57.575121][ T1019] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 57.575288][ T1019] __sys_sendmsg (net/socket.c:2654)
[ 57.575450][ T1019] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 57.575621][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 57.575789][ T1019] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 57.575957][ T1019] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   57.576160][ T1019] RIP: 0033:0x7f2376fa89a7
[ 57.576330][ T1019] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   57.576904][ T1019] RSP: 002b:00007ffed95632a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   57.577151][ T1019] RAX: ffffffffffffffda RBX: 000000000047da00 RCX: 00007f2376fa89a7
[   57.577393][ T1019] RDX: 0000000000000000 RSI: 00007ffed9563310 RDI: 0000000000000005
[   57.577638][ T1019] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[   57.577889][ T1019] R10: 00007f2376e61708 R11: 0000000000000246 R12: 00007ffed95679bf
[   57.578135][ T1019] R13: 0000000067858ef1 R14: 0000000000483b60 R15: 00007ffed95679c7
| [ 57.580358][ T1019] #1: ffff88800bf3e990 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
| [ 57.580607][ T1019] #2: ffffffffa03f1cd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191)
| [   57.580848][ T1019] stack backtrace:
| [   57.581202][ T1019] Tainted: [W]=WARN
[   57.581303][ T1019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   57.581468][ T1019] Call Trace:
[   57.581572][ T1019]  <TASK>
[ 57.581645][ T1019] dump_stack_lvl (lib/dump_stack.c:123)
[ 57.581782][ T1019] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[ 57.581918][ T1019] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 57.582051][ T1019] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.582224][ T1019] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 57.582357][ T1019] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 57.582493][ T1019] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 57.582629][ T1019] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.582808][ T1019] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735)
[ 57.582941][ T1019] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.583108][ T1019] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.583283][ T1019] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 57.583424][ T1019] ? static_key_slow_inc (kernel/jump_label.c:191)
[ 57.583561][ T1019] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 57.583705][ T1019] ? static_key_fast_inc_not_disabled (./arch/x86/include/asm/atomic.h:23 (discriminator 3) ./include/linux/atomic/atomic-arch-fallback.h:457 (discriminator 3) ./include/linux/atomic/atomic-instrumented.h:33 (discriminator 3) kernel/jump_label.c:141 (discriminator 3))
[ 57.583875][ T1019] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128)
[ 57.584052][ T1019] ? static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.584225][ T1019] static_key_slow_inc_cpuslocked (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:1195 kernel/jump_label.c:167 kernel/jump_label.c:151)
[ 57.584400][ T1019] static_key_slow_inc (kernel/jump_label.c:191)
[ 57.584566][ T1019] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 57.584702][ T1019] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 57.584805][ T1019] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 57.584947][ T1019] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 57.585082][ T1019] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 57.585222][ T1019] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 57.585357][ T1019] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 57.585493][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 57.585626][ T1019] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 57.585757][ T1019] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 57.585859][ T1019] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 57.585995][ T1019] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 57.586127][ T1019] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 57.586265][ T1019] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 57.586402][ T1019] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 57.586538][ T1019] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[ 57.586674][ T1019] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 57.586808][ T1019] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 57.586954][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 57.587089][ T1019] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 57.587227][ T1019] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 57.587363][ T1019] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 57.587497][ T1019] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 57.587632][ T1019] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 57.587810][ T1019] ___sys_sendmsg (net/socket.c:2624)
[ 57.587947][ T1019] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 57.588080][ T1019] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 57.588218][ T1019] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 57.588352][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 57.588486][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 57.588623][ T1019] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 57.588756][ T1019] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 57.588898][ T1019] __sys_sendmsg (net/socket.c:2654)
[ 57.589029][ T1019] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 57.589166][ T1019] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 57.589301][ T1019] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 57.589436][ T1019] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   57.589614][ T1019] RIP: 0033:0x7f2376fa89a7
[ 57.589753][ T1019] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   57.590230][ T1019] RSP: 002b:00007ffed95632a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   57.590432][ T1019] RAX: ffffffffffffffda RBX: 000000000047da00 RCX: 00007f2376fa89a7
[   57.590642][ T1019] RDX: 0000000000000000 RSI: 00007ffed9563310 RDI: 0000000000000005
[   57.590850][ T1019] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[   57.591065][ T1019] R10: 00007f2376e61708 R11: 0000000000000246 R12: 00007ffed95679bf


Finger prints:
__lock_acquire:__mutex_lock:static_key_slow_inc_cpuslocked:static_key_slow_inc:tc_new_tfilter
__might_resched:cpus_read_lock:static_key_slow_inc:tc_new_tfilter:rtnetlink_rcv_msg