====================================== | [ 18.657853][ T382] RCU nest depth: 0, expected: 0 | [ 18.658066][ T382] 2 locks held by tc/382: | [ 18.658208][ T382] #0: ffffffff9d7e7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 18.658565][ T382] #1: ffff888009fc4f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 18.659116][ T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.659328][ T382] Call Trace: [ 18.659454][ T382] [ 18.659543][ T382] dump_stack_lvl (lib/dump_stack.c:123) [ 18.659718][ T382] __might_resched (kernel/sched/core.c:8759) [ 18.659883][ T382] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 18.660059][ T382] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 18.660223][ T382] static_key_slow_inc (kernel/jump_label.c:191) [ 18.660387][ T382] tc_new_tfilter (net/sched/cls_api.c:2385) [ 18.660561][ T382] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 18.660692][ T382] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 18.660881][ T382] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.661051][ T382] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 18.661216][ T382] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 18.661390][ T382] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 18.661570][ T382] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 18.661864][ T382] ? 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) [ 18.662032][ T382] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 18.662162][ T382] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 18.662326][ T382] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 18.662488][ T382] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 18.662665][ T382] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 18.662846][ T382] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 18.663010][ T382] ? 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) [ 18.663181][ T382] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 18.663345][ T382] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 18.663508][ T382] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 18.663678][ T382] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 18.663846][ T382] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 18.664019][ T382] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 18.664191][ T382] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 18.664355][ T382] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 18.664570][ T382] ___sys_sendmsg (net/socket.c:2624) [ 18.664729][ T382] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 18.664932][ T382] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 18.665098][ T382] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 18.665297][ T382] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 18.665479][ T382] ? trace_rcu_segcb_stats (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:570 ./include/linux/cpumask.h:1117 ./include/trace/events/rcu.h:537) [ 18.665659][ T382] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 18.665883][ T382] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 18.666046][ T382] ? do_sys_openat2 (fs/open.c:1405) [ 18.666206][ T382] ? do_sys_openat2 (fs/open.c:1411) [ 18.666372][ T382] ? do_sys_openat2 (fs/open.c:1411) [ 18.666541][ T382] __sys_sendmsg (net/socket.c:2654) [ 18.666705][ T382] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 18.666894][ T382] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 18.667060][ T382] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.667259][ T382] RIP: 0033:0x7fbed1fd99a7 [ 18.667434][ T382] Code: Unable to access opcode bytes at 0x7fbed1fd997d. Code starting with the faulting instruction =========================================== [ 18.667643][ T382] RSP: 002b:00007ffff5519d48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.667962][ T382] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fbed1fd99a7 [ 18.668210][ T382] RDX: 0000000000000000 RSI: 00007ffff5519db0 RDI: 0000000000000005 [ 18.668453][ T382] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 18.668694][ T382] R10: 00007fbed1e92708 R11: 0000000000000246 R12: 0000000000000000 [ 18.668936][ T382] R13: 0000000067858810 R14: 0000000000483b60 R15: 00007ffff551f974 | [ 18.671064][ T382] #1: ffff888009fc4f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 18.671303][ T382] #2: ffffffff9cdddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 18.671538][ T382] stack backtrace: | [ 18.671868][ T382] Tainted: [W]=WARN [ 18.671969][ T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.672142][ T382] Call Trace: [ 18.672244][ T382] [ 18.672313][ T382] dump_stack_lvl (lib/dump_stack.c:123) [ 18.672451][ T382] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 18.672586][ T382] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 18.672719][ T382] ? 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) [ 18.672890][ T382] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.673022][ T382] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 18.673160][ T382] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 18.673292][ T382] ? 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) [ 18.673474][ T382] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 18.673607][ T382] ? 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) [ 18.673771][ T382] ? 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) [ 18.673937][ T382] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 18.674070][ T382] ? static_key_slow_inc (kernel/jump_label.c:191) [ 18.674207][ T382] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.674341][ T382] ? 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)) [ 18.674505][ T382] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 18.674671][ T382] ? 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) [ 18.674836][ T382] 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) [ 18.675001][ T382] static_key_slow_inc (kernel/jump_label.c:191) [ 18.675138][ T382] tc_new_tfilter (net/sched/cls_api.c:2385) [ 18.675274][ T382] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 18.675377][ T382] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 18.675516][ T382] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 18.675650][ T382] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 18.675785][ T382] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 18.675936][ T382] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 18.676076][ T382] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 18.676209][ T382] ? 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) [ 18.676341][ T382] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 18.676444][ T382] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 18.676579][ T382] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 18.676711][ T382] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 18.676844][ T382] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 18.676983][ T382] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 18.677123][ T382] ? 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) [ 18.677258][ T382] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 18.677402][ T382] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 18.677543][ T382] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 18.677679][ T382] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 18.677815][ T382] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 18.677951][ T382] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 18.678097][ T382] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 18.678230][ T382] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 18.678399][ T382] ___sys_sendmsg (net/socket.c:2624) [ 18.678531][ T382] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 18.678699][ T382] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 18.678832][ T382] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 18.678999][ T382] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 18.679134][ T382] ? trace_rcu_segcb_stats (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:570 ./include/linux/cpumask.h:1117 ./include/trace/events/rcu.h:537) [ 18.679296][ T382] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 18.679462][ T382] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 18.679596][ T382] ? do_sys_openat2 (fs/open.c:1405) [ 18.679730][ T382] ? do_sys_openat2 (fs/open.c:1411) [ 18.679864][ T382] ? do_sys_openat2 (fs/open.c:1411) [ 18.679998][ T382] __sys_sendmsg (net/socket.c:2654) [ 18.680135][ T382] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 18.680306][ T382] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 18.680499][ T382] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 18.680735][ T382] RIP: 0033:0x7fbed1fd99a7 [ 18.680934][ T382] Code: Unable to access opcode bytes at 0x7fbed1fd997d. Code starting with the faulting instruction =========================================== [ 18.681173][ T382] RSP: 002b:00007ffff5519d48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.681461][ T382] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fbed1fd99a7 [ 18.681744][ T382] RDX: 0000000000000000 RSI: 00007ffff5519db0 RDI: 0000000000000005 [ 18.682019][ T382] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 18.682292][ T382] R10: 00007fbed1e92708 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