====================================== | [ 17.099800][ T375] RCU nest depth: 0, expected: 0 | [ 17.100053][ T375] 2 locks held by tc/375: | [ 17.100182][ T375] #0: ffffffff8efe7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 17.100516][ T375] #1: ffff88800a0ae510 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 17.101064][ T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.101277][ T375] Call Trace: [ 17.101420][ T375] [ 17.101512][ T375] dump_stack_lvl (lib/dump_stack.c:123) [ 17.101687][ T375] __might_resched (kernel/sched/core.c:8759) [ 17.101855][ T375] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 17.102027][ T375] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 17.102196][ T375] static_key_slow_inc (kernel/jump_label.c:191) [ 17.102380][ T375] tc_new_tfilter (net/sched/cls_api.c:2385) [ 17.102566][ T375] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 17.102697][ T375] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 17.102891][ T375] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 17.103067][ T375] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 17.103237][ T375] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 17.103651][ T375] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 17.103819][ T375] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 17.103991][ T375] ? 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) [ 17.104163][ T375] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 17.104299][ T375] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 17.104485][ T375] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 17.104649][ T375] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 17.104819][ T375] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 17.105004][ T375] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 17.105182][ T375] ? 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) [ 17.105367][ T375] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 17.105542][ T375] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 17.105712][ T375] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 17.105890][ T375] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 17.106059][ T375] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 17.106242][ T375] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 17.106424][ T375] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 17.106598][ T375] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 17.106814][ T375] ___sys_sendmsg (net/socket.c:2624) [ 17.106981][ T375] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 17.107188][ T375] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 17.107380][ T375] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 17.107588][ T375] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 17.107769][ T375] ? 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) [ 17.107945][ T375] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 17.108159][ T375] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 17.108363][ T375] ? do_sys_openat2 (fs/open.c:1405) [ 17.108535][ T375] ? do_sys_openat2 (fs/open.c:1411) [ 17.108707][ T375] ? do_sys_openat2 (fs/open.c:1411) [ 17.108882][ T375] __sys_sendmsg (net/socket.c:2654) [ 17.109052][ T375] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 17.109253][ T375] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 17.109440][ T375] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 17.109648][ T375] RIP: 0033:0x7fa4f0dfa9a7 [ 17.109839][ T375] Code: Unable to access opcode bytes at 0x7fa4f0dfa97d. Code starting with the faulting instruction =========================================== [ 17.110058][ T375] RSP: 002b:00007ffcd49c1c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.110314][ T375] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fa4f0dfa9a7 [ 17.110590][ T375] RDX: 0000000000000000 RSI: 00007ffcd49c1d00 RDI: 0000000000000005 [ 17.110841][ T375] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 17.111090][ T375] R10: 00007fa4f0cb3708 R11: 0000000000000246 R12: 0000000000000000 [ 17.111354][ T375] R13: 000000006785869d R14: 0000000000483b60 R15: 00007ffcd49c698f | [ 17.113617][ T375] #1: ffff88800a0ae510 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 17.113887][ T375] #2: ffffffff8e5ddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 17.114151][ T375] stack backtrace: | [ 17.114560][ T375] Tainted: [W]=WARN [ 17.114665][ T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.114846][ T375] Call Trace: [ 17.114952][ T375] [ 17.115024][ T375] dump_stack_lvl (lib/dump_stack.c:123) [ 17.115166][ T375] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 17.115308][ T375] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 17.115458][ T375] ? 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) [ 17.115628][ T375] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 17.115763][ T375] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 17.115909][ T375] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 17.116047][ T375] ? 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) [ 17.116214][ T375] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 17.116357][ T375] ? 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) [ 17.116530][ T375] ? 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) [ 17.116698][ T375] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 17.116834][ T375] ? static_key_slow_inc (kernel/jump_label.c:191) [ 17.116980][ T375] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 17.117121][ T375] ? 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)) [ 17.117292][ T375] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 17.117472][ T375] ? 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) [ 17.117644][ T375] 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) [ 17.117815][ T375] static_key_slow_inc (kernel/jump_label.c:191) [ 17.117956][ T375] tc_new_tfilter (net/sched/cls_api.c:2385) [ 17.118095][ T375] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 17.118203][ T375] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 17.118363][ T375] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 17.118503][ T375] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 17.118642][ T375] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 17.118781][ T375] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 17.118924][ T375] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 17.119060][ T375] ? 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) [ 17.119195][ T375] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 17.119300][ T375] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 17.119444][ T375] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 17.119582][ T375] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 17.119718][ T375] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 17.119892][ T375] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 17.120029][ T375] ? 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) [ 17.120182][ T375] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 17.120320][ T375] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 17.120464][ T375] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 17.120604][ T375] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 17.120754][ T375] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 17.120898][ T375] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 17.121039][ T375] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 17.121173][ T375] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 17.121357][ T375] ___sys_sendmsg (net/socket.c:2624) [ 17.121496][ T375] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 17.121671][ T375] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 17.121813][ T375] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 17.121988][ T375] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 17.122130][ T375] ? 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) [ 17.122272][ T375] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 17.122457][ T375] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 17.122613][ T375] ? do_sys_openat2 (fs/open.c:1405) [ 17.122757][ T375] ? do_sys_openat2 (fs/open.c:1411) [ 17.122892][ T375] ? do_sys_openat2 (fs/open.c:1411) [ 17.123034][ T375] __sys_sendmsg (net/socket.c:2654) [ 17.123173][ T375] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 17.123316][ T375] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 17.123465][ T375] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 17.123636][ T375] RIP: 0033:0x7fa4f0dfa9a7 [ 17.123789][ T375] Code: Unable to access opcode bytes at 0x7fa4f0dfa97d. Code starting with the faulting instruction =========================================== [ 17.123966][ T375] RSP: 002b:00007ffcd49c1c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.124205][ T375] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fa4f0dfa9a7 [ 17.124423][ T375] RDX: 0000000000000000 RSI: 00007ffcd49c1d00 RDI: 0000000000000005 [ 17.124661][ T375] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 17.124871][ T375] R10: 00007fa4f0cb3708 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