======================================
| [  112.681739][ T1234] RCU nest depth: 0, expected: 0
| [  112.681900][ T1234] 2 locks held by tc/1234:
| [ 112.682062][ T1234] #0: ffffffffb1609c08 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261)
| [ 112.682375][ T1234] #1: ffff88800c71e090 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
[  112.682933][ T1234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  112.683133][ T1234] Call Trace:
[  112.683259][ T1234]  <TASK>
[ 112.683346][ T1234] dump_stack_lvl (lib/dump_stack.c:123)
[ 112.683513][ T1234] __might_resched (kernel/sched/core.c:8759)
[ 112.683673][ T1234] ? tc_new_tfilter (net/sched/cls_api.c:2383)
[ 112.683842][ T1234] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490)
[ 112.684006][ T1234] static_key_slow_inc (kernel/jump_label.c:191)
[ 112.684165][ T1234] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 112.684335][ T1234] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 112.684461][ T1234] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 112.684787][ T1234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 112.684956][ T1234] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 112.685119][ T1234] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 112.685285][ T1234] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 112.685446][ T1234] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 112.685605][ T1234] ? 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)
[ 112.685761][ T1234] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 112.685890][ T1234] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 112.686053][ T1234] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 112.686211][ T1234] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 112.686373][ T1234] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 112.686554][ T1234] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 112.686717][ T1234] ? 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)
[ 112.686880][ T1234] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 112.687043][ T1234] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 112.687204][ T1234] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 112.687369][ T1234] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 112.687534][ T1234] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 112.687708][ T1234] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 112.687872][ T1234] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 112.688031][ T1234] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 112.688242][ T1234] ___sys_sendmsg (net/socket.c:2624)
[ 112.688399][ T1234] ? 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)
[ 112.688561][ T1234] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 112.688727][ T1234] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 112.688899][ T1234] ? 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)
[ 112.689060][ T1234] ? 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)
[ 112.689227][ T1234] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 112.689389][ T1234] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 112.689552][ T1234] __sys_sendmsg (net/socket.c:2654)
[ 112.689711][ T1234] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 112.689881][ T1234] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 112.690052][ T1234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 112.690212][ T1234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  112.690409][ T1234] RIP: 0033:0x7fd3720ee9a7
[ 112.690580][ T1234] Code: Unable to access opcode bytes at 0x7fd3720ee97d.

Code starting with the faulting instruction
===========================================
[  112.690784][ T1234] RSP: 002b:00007fff14b8b3b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  112.691024][ T1234] RAX: ffffffffffffffda RBX: 000000000047da00 RCX: 00007fd3720ee9a7
[  112.691275][ T1234] RDX: 0000000000000000 RSI: 00007fff14b8b420 RDI: 0000000000000005
[  112.691512][ T1234] RBP: 0000000000000300 R08: 0000000000000000 R09: 00306d6574656e5f
[  112.691749][ T1234] R10: 00007fd371fa7708 R11: 0000000000000246 R12: 0000000000000000
[  112.691987][ T1234] R13: 0000000067859092 R14: 0000000000483b60 R15: 00007fff14b919ae
| [ 112.694071][ T1234] #1: ffff88800c71e090 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
| [ 112.694304][ T1234] #2: ffffffffb0bf1cd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191)
| [  112.694537][ T1234] stack backtrace:
| [  112.694864][ T1234] Tainted: [W]=WARN
[  112.694962][ T1234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  112.695128][ T1234] Call Trace:
[  112.695228][ T1234]  <TASK>
[ 112.695297][ T1234] dump_stack_lvl (lib/dump_stack.c:123)
[ 112.695433][ T1234] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[ 112.695568][ T1234] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 112.695702][ T1234] ? 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)
[ 112.695868][ T1234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 112.696000][ T1234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 112.696140][ T1234] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 112.696273][ T1234] ? 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)
[ 112.696436][ T1234] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735)
[ 112.696568][ T1234] ? 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)
[ 112.696732][ T1234] ? 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)
[ 112.696895][ T1234] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 112.697025][ T1234] ? static_key_slow_inc (kernel/jump_label.c:191)
[ 112.697161][ T1234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 112.697293][ T1234] ? 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))
[ 112.697454][ T1234] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128)
[ 112.697619][ T1234] ? 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)
[ 112.697781][ T1234] 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)
[ 112.697943][ T1234] static_key_slow_inc (kernel/jump_label.c:191)
[ 112.698076][ T1234] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 112.698212][ T1234] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 112.698312][ T1234] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 112.698449][ T1234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 112.698584][ T1234] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 112.698718][ T1234] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 112.698849][ T1234] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 112.698985][ T1234] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 112.699116][ T1234] ? 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)
[ 112.699248][ T1234] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 112.699349][ T1234] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 112.699480][ T1234] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 112.699614][ T1234] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 112.699747][ T1234] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 112.699887][ T1234] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 112.700019][ T1234] ? 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)
[ 112.700153][ T1234] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 112.700285][ T1234] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 112.700417][ T1234] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 112.700549][ T1234] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 112.700680][ T1234] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 112.700819][ T1234] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 112.700950][ T1234] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 112.701082][ T1234] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 112.701249][ T1234] ___sys_sendmsg (net/socket.c:2624)
[ 112.701381][ T1234] ? 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)
[ 112.701512][ T1234] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 112.701644][ T1234] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 112.701776][ T1234] ? 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)
[ 112.701913][ T1234] ? 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)
[ 112.702045][ T1234] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 112.702175][ T1234] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 112.702308][ T1234] __sys_sendmsg (net/socket.c:2654)
[ 112.702439][ T1234] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 112.702572][ T1234] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 112.702703][ T1234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 112.702839][ T1234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  112.703005][ T1234] RIP: 0033:0x7fd3720ee9a7
[ 112.703143][ T1234] Code: Unable to access opcode bytes at 0x7fd3720ee97d.

Code starting with the faulting instruction
===========================================
[  112.703313][ T1234] RSP: 002b:00007fff14b8b3b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  112.703511][ T1234] RAX: ffffffffffffffda RBX: 000000000047da00 RCX: 00007fd3720ee9a7
[  112.703710][ T1234] RDX: 0000000000000000 RSI: 00007fff14b8b420 RDI: 0000000000000005
[  112.703907][ T1234] RBP: 0000000000000300 R08: 0000000000000000 R09: 00306d6574656e5f
[  112.704107][ T1234] R10: 00007fd371fa7708 R11: 0000000000000246 R12: 0000000000000000


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