======================================
| [   12.798821][  T285] RCU nest depth: 0, expected: 0
| [   12.799001][  T285] 2 locks held by tc/285:
| [ 12.799143][ T285] #0: ffffffffa4009c08 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261)
| [ 12.799533][ T285] #1: ffff88800ae66f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
[   12.800149][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.800380][  T285] Call Trace:
[   12.800530][  T285]  <TASK>
[ 12.800626][ T285] dump_stack_lvl (lib/dump_stack.c:123)
[ 12.800811][ T285] __might_resched (kernel/sched/core.c:8759)
[ 12.801002][ T285] ? tc_new_tfilter (net/sched/cls_api.c:2383)
[ 12.801202][ T285] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490)
[ 12.801377][ T285] static_key_slow_inc (kernel/jump_label.c:191)
[ 12.801557][ T285] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 12.801757][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 12.801897][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 12.802107][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 12.802303][ T285] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 12.802482][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 12.802665][ T285] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 12.802851][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 12.803033][ T285] ? 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)
[ 12.803218][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 12.803366][ T285] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 12.803556][ T285] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 12.803745][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 12.803930][ T285] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 12.804135][ T285] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 12.804330][ T285] ? 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)
[ 12.804512][ T285] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 12.804693][ T285] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 12.804886][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 12.805074][ T285] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 12.805255][ T285] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 12.805448][ T285] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 12.805631][ T285] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 12.805808][ T285] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 12.806040][ T285] ___sys_sendmsg (net/socket.c:2624)
[ 12.806216][ T285] ? 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)
[ 12.806393][ T285] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 12.806573][ T285] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 12.806754][ T285] ? 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)
[ 12.806928][ T285] ? 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)
[ 12.807110][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 12.807287][ T285] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 12.807470][ T285] __sys_sendmsg (net/socket.c:2654)
[ 12.807646][ T285] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 12.807828][ T285] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 12.808010][ T285] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 12.808189][ T285] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   12.808405][  T285] RIP: 0033:0x7fa66065e9a7
[ 12.808590][ T285] Code: Unable to access opcode bytes at 0x7fa66065e97d.

Code starting with the faulting instruction
===========================================
[   12.808817][  T285] RSP: 002b:00007fff542186f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   12.809087][  T285] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fa66065e9a7
[   12.809347][  T285] RDX: 0000000000000000 RSI: 00007fff54218760 RDI: 0000000000000005
[   12.809608][  T285] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000404e08
[   12.809893][  T285] R10: 00007fa660517708 R11: 0000000000000246 R12: 0000000000000000
[   12.810159][  T285] R13: 00000000678595b6 R14: 0000000000483b60 R15: 00007fff5421d9dd
| [ 12.812980][ T285] #1: ffff88800ae66f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
| [ 12.813236][ T285] #2: ffffffffa35f1cd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191)
| [   12.813496][  T285] stack backtrace:
| [   12.813861][  T285] Tainted: [W]=WARN
[   12.813977][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.814151][  T285] Call Trace:
[   12.814269][  T285]  <TASK>
[ 12.814350][ T285] dump_stack_lvl (lib/dump_stack.c:123)
[ 12.814499][ T285] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[ 12.814650][ T285] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 12.814797][ T285] ? 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)
[ 12.814983][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 12.815130][ T285] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 12.815278][ T285] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 12.815424][ T285] ? 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)
[ 12.815606][ T285] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735)
[ 12.815753][ T285] ? 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)
[ 12.815937][ T285] ? 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)
[ 12.816118][ T285] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 12.816263][ T285] ? static_key_slow_inc (kernel/jump_label.c:191)
[ 12.816412][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 12.816559][ T285] ? 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))
[ 12.816742][ T285] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128)
[ 12.816926][ T285] ? 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)
[ 12.817109][ T285] 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)
[ 12.817287][ T285] static_key_slow_inc (kernel/jump_label.c:191)
[ 12.817433][ T285] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 12.817584][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 12.817697][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 12.817849][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 12.817996][ T285] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 12.818148][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 12.818293][ T285] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 12.818441][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 12.818584][ T285] ? 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)
[ 12.818731][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 12.818843][ T285] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 12.818988][ T285] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 12.819138][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 12.819285][ T285] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 12.819437][ T285] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 12.819586][ T285] ? 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)
[ 12.819735][ T285] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 12.819885][ T285] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 12.820031][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 12.820180][ T285] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 12.820328][ T285] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 12.820479][ T285] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 12.820626][ T285] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 12.820773][ T285] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 12.820957][ T285] ___sys_sendmsg (net/socket.c:2624)
[ 12.821101][ T285] ? 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)
[ 12.821248][ T285] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 12.821393][ T285] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 12.821538][ T285] ? 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)
[ 12.821684][ T285] ? 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)
[ 12.821830][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 12.821974][ T285] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 12.822123][ T285] __sys_sendmsg (net/socket.c:2654)
[ 12.822269][ T285] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 12.822419][ T285] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 12.822568][ T285] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 12.822714][ T285] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   12.822896][  T285] RIP: 0033:0x7fa66065e9a7
[ 12.823052][ T285] Code: Unable to access opcode bytes at 0x7fa66065e97d.

Code starting with the faulting instruction
===========================================
[   12.823238][  T285] RSP: 002b:00007fff542186f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   12.823460][  T285] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fa66065e9a7
[   12.823683][  T285] RDX: 0000000000000000 RSI: 00007fff54218760 RDI: 0000000000000005
[   12.823901][  T285] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000404e08
[   12.824120][  T285] R10: 00007fa660517708 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