======================================
| [   13.549740][  T285] RCU nest depth: 0, expected: 0
| [   13.549952][  T285] 2 locks held by tc/285:
| [ 13.550095][ T285] #0: ffffffff91e09c08 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261)
| [ 13.550438][ T285] #1: ffff88800988e990 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
[   13.551010][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.551215][  T285] Call Trace:
[   13.551341][  T285]  <TASK>
[ 13.551437][ T285] dump_stack_lvl (lib/dump_stack.c:123)
[ 13.551607][ T285] __might_resched (kernel/sched/core.c:8759)
[ 13.551778][ T285] ? tc_new_tfilter (net/sched/cls_api.c:2383)
[ 13.551949][ T285] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490)
[ 13.552110][ T285] static_key_slow_inc (kernel/jump_label.c:191)
[ 13.552277][ T285] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 13.552449][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 13.552576][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 13.552766][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 13.552945][ T285] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 13.553110][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 13.553272][ T285] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 13.553437][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 13.553599][ 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)
[ 13.553760][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 13.553889][ T285] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 13.554054][ T285] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 13.554220][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 13.554384][ T285] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 13.554563][ T285] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 13.554727][ 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)
[ 13.554890][ T285] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 13.555055][ T285] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 13.555223][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 13.555397][ T285] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 13.555565][ T285] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 13.555742][ T285] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 13.555908][ T285] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 13.556068][ T285] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 13.556284][ T285] ___sys_sendmsg (net/socket.c:2624)
[ 13.556446][ 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)
[ 13.556616][ T285] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 13.556782][ T285] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 13.556952][ 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)
[ 13.557114][ 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)
[ 13.557282][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 13.557447][ T285] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 13.557612][ T285] __sys_sendmsg (net/socket.c:2654)
[ 13.557780][ T285] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 13.557950][ T285] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 13.558118][ T285] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 13.558279][ T285] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   13.558480][  T285] RIP: 0033:0x7f9c8f0449a7
[ 13.558663][ T285] Code: Unable to access opcode bytes at 0x7f9c8f04497d.

Code starting with the faulting instruction
===========================================
[   13.558868][  T285] RSP: 002b:00007ffeeaac5ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   13.559121][  T285] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f9c8f0449a7
[   13.559377][  T285] RDX: 0000000000000000 RSI: 00007ffeeaac5c10 RDI: 0000000000000005
[   13.559619][  T285] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000404e08
[   13.559860][  T285] R10: 00007f9c8eefd708 R11: 0000000000000246 R12: 0000000000000000
[   13.560107][  T285] R13: 00000000678591c6 R14: 0000000000483b60 R15: 00007ffeeaacb9dd
| [ 13.562254][ T285] #1: ffff88800988e990 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383)
| [ 13.562491][ T285] #2: ffffffff913f1cd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191)
| [   13.562723][  T285] stack backtrace:
| [   13.563063][  T285] Tainted: [W]=WARN
[   13.563164][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.563327][  T285] Call Trace:
[   13.563430][  T285]  <TASK>
[ 13.563502][ T285] dump_stack_lvl (lib/dump_stack.c:123)
[ 13.563639][ T285] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[ 13.563774][ T285] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 13.563907][ 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)
[ 13.564083][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 13.564217][ T285] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 13.564350][ T285] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 13.564488][ 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)
[ 13.564654][ T285] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735)
[ 13.564785][ 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)
[ 13.564949][ 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)
[ 13.565119][ T285] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 13.565252][ T285] ? static_key_slow_inc (kernel/jump_label.c:191)
[ 13.565385][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 13.565520][ 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))
[ 13.565685][ T285] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128)
[ 13.565851][ 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)
[ 13.566019][ 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)
[ 13.566183][ T285] static_key_slow_inc (kernel/jump_label.c:191)
[ 13.566317][ T285] tc_new_tfilter (net/sched/cls_api.c:2385)
[ 13.566452][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 13.566554][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 13.566694][ T285] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 13.566830][ T285] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912)
[ 13.566964][ T285] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186)
[ 13.567098][ T285] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914)
[ 13.567232][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 13.567364][ 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)
[ 13.567497][ T285] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 13.567601][ T285] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 13.567735][ T285] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 13.567869][ T285] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817)
[ 13.568013][ T285] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 13.568150][ T285] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 13.568282][ 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)
[ 13.568417][ T285] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 13.568556][ T285] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 13.568689][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 13.568830][ T285] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 13.568964][ T285] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 13.569100][ T285] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568)
[ 13.569245][ T285] ? __pfx_____sys_sendmsg (net/socket.c:2514)
[ 13.569379][ T285] ? __pfx_copy_msghdr_from_user (net/socket.c:2494)
[ 13.569547][ T285] ___sys_sendmsg (net/socket.c:2624)
[ 13.569678][ 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)
[ 13.569811][ T285] ? __pfx____sys_sendmsg (net/socket.c:2611)
[ 13.569950][ T285] ? usage_skip (kernel/locking/lockdep.c:2314 kernel/locking/lockdep.c:2282)
[ 13.570085][ 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)
[ 13.570219][ 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)
[ 13.570352][ T285] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 13.570486][ T285] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 13.570619][ T285] __sys_sendmsg (net/socket.c:2654)
[ 13.570751][ T285] ? __pfx___sys_sendmsg (net/socket.c:2639)
[ 13.570890][ T285] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 13.571024][ T285] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 13.571157][ T285] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   13.571321][  T285] RIP: 0033:0x7f9c8f0449a7
[ 13.571494][ T285] Code: Unable to access opcode bytes at 0x7f9c8f04497d.

Code starting with the faulting instruction
===========================================
[   13.571668][  T285] RSP: 002b:00007ffeeaac5ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   13.571873][  T285] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f9c8f0449a7
[   13.572075][  T285] RDX: 0000000000000000 RSI: 00007ffeeaac5c10 RDI: 0000000000000005
[   13.572275][  T285] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000404e08
[   13.572480][  T285] R10: 00007f9c8eefd708 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