====================================== | [ 21.445150][ T384] RCU nest depth: 0, expected: 0 | [ 21.445471][ T384] 2 locks held by tc/384: | [ 21.445742][ T384] #0: ffffffffbb7e7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 21.446268][ T384] #1: ffff88800a34c690 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.447211][ T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.447561][ T384] Call Trace: [ 21.447779][ T384] [ 21.447871][ T384] dump_stack_lvl (lib/dump_stack.c:123) [ 21.448058][ T384] __might_resched (kernel/sched/core.c:8759) [ 21.448225][ T384] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.448402][ T384] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 21.448579][ T384] static_key_slow_inc (kernel/jump_label.c:191) [ 21.448747][ T384] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.448922][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.449054][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.449257][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.449430][ T384] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.449597][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.449767][ T384] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.450216][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.450381][ T384] ? 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) [ 21.450544][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.450687][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.450858][ T384] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.451025][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.451189][ T384] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.451372][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.451541][ T384] ? 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) [ 21.451717][ T384] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.451891][ T384] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.452057][ T384] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.452232][ T384] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.452402][ T384] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.452577][ T384] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.452745][ T384] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.452911][ T384] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.453133][ T384] ___sys_sendmsg (net/socket.c:2624) [ 21.453296][ T384] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.453509][ T384] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.453678][ T384] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.453881][ T384] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.454047][ T384] ? 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) [ 21.454229][ T384] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.454438][ T384] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.454606][ T384] ? do_sys_openat2 (fs/open.c:1405) [ 21.454774][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.454946][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.455115][ T384] __sys_sendmsg (net/socket.c:2654) [ 21.455277][ T384] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.455465][ T384] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.455642][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.455850][ T384] RIP: 0033:0x7fc2caddb9a7 [ 21.456030][ T384] Code: Unable to access opcode bytes at 0x7fc2caddb97d. Code starting with the faulting instruction =========================================== [ 21.456255][ T384] RSP: 002b:00007ffd9149d868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.456508][ T384] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fc2caddb9a7 [ 21.456759][ T384] RDX: 0000000000000000 RSI: 00007ffd9149d8d0 RDI: 0000000000000005 [ 21.457016][ T384] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.457263][ T384] R10: 00007fc2cac94708 R11: 0000000000000246 R12: 0000000000000000 [ 21.457508][ T384] R13: 00000000678585cb R14: 0000000000483b60 R15: 00007ffd914a3986 | [ 21.460210][ T384] #1: ffff88800a34c690 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 21.460461][ T384] #2: ffffffffbadddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 21.460728][ T384] stack backtrace: | [ 21.461102][ T384] Tainted: [W]=WARN [ 21.461221][ T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.461407][ T384] Call Trace: [ 21.461524][ T384] [ 21.461611][ T384] dump_stack_lvl (lib/dump_stack.c:123) [ 21.461755][ T384] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 21.461896][ T384] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 21.462032][ T384] ? 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) [ 21.462210][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.462346][ T384] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 21.462482][ T384] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 21.462622][ T384] ? 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) [ 21.462793][ T384] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 21.462930][ T384] ? 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) [ 21.463101][ T384] ? 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) [ 21.463271][ T384] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 21.463405][ T384] ? static_key_slow_inc (kernel/jump_label.c:191) [ 21.463541][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.463678][ T384] ? 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)) [ 21.463857][ T384] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 21.464027][ T384] ? 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) [ 21.464195][ T384] 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) [ 21.464366][ T384] static_key_slow_inc (kernel/jump_label.c:191) [ 21.464503][ T384] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.464643][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.464746][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.464890][ T384] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.465031][ T384] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.465170][ T384] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.465305][ T384] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.465443][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.465581][ T384] ? 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) [ 21.465715][ T384] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.465818][ T384] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.465956][ T384] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.466095][ T384] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.466232][ T384] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.466371][ T384] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.466514][ T384] ? 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) [ 21.466653][ T384] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.466792][ T384] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.466927][ T384] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.467065][ T384] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.467200][ T384] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.467338][ T384] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.467476][ T384] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.467616][ T384] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.467807][ T384] ___sys_sendmsg (net/socket.c:2624) [ 21.467941][ T384] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.468111][ T384] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.468251][ T384] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.468417][ T384] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.468563][ T384] ? 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) [ 21.468705][ T384] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.468876][ T384] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.469011][ T384] ? do_sys_openat2 (fs/open.c:1405) [ 21.469149][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.469283][ T384] ? do_sys_openat2 (fs/open.c:1411) [ 21.469419][ T384] __sys_sendmsg (net/socket.c:2654) [ 21.469552][ T384] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.469699][ T384] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.469836][ T384] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.470006][ T384] RIP: 0033:0x7fc2caddb9a7 [ 21.470157][ T384] Code: Unable to access opcode bytes at 0x7fc2caddb97d. Code starting with the faulting instruction =========================================== [ 21.470332][ T384] RSP: 002b:00007ffd9149d868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.470547][ T384] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fc2caddb9a7 [ 21.470756][ T384] RDX: 0000000000000000 RSI: 00007ffd9149d8d0 RDI: 0000000000000005 [ 21.470960][ T384] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.471165][ T384] R10: 00007fc2cac94708 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