====================================== | [ 21.647820][ T381] RCU nest depth: 0, expected: 0 | [ 21.648131][ T381] 2 locks held by tc/381: | [ 21.648361][ T381] #0: ffffffffa79e7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 21.648909][ T381] #1: ffff88800abd4f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.649860][ T381] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.650191][ T381] Call Trace: [ 21.650360][ T381] [ 21.650506][ T381] dump_stack_lvl (lib/dump_stack.c:123) [ 21.650780][ T381] __might_resched (kernel/sched/core.c:8759) [ 21.651040][ T381] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 21.651317][ T381] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 21.651587][ T381] static_key_slow_inc (kernel/jump_label.c:191) [ 21.651882][ T381] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.652179][ T381] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.652389][ T381] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.652701][ T381] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.652981][ T381] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.653246][ T381] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.653510][ T381] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.653792][ T381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.654218][ T381] ? 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) [ 21.654384][ T381] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.654517][ T381] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.654685][ T381] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.654852][ T381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.655017][ T381] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.655208][ T381] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.655383][ T381] ? 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) [ 21.655552][ T381] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.655719][ T381] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.655895][ T381] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.656065][ T381] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.656247][ T381] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.656425][ T381] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.656605][ T381] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.656770][ T381] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.656989][ T381] ___sys_sendmsg (net/socket.c:2624) [ 21.657167][ T381] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.657388][ T381] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.657565][ T381] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.657788][ T381] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.657969][ T381] ? 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) [ 21.658172][ T381] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.658403][ T381] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.658572][ T381] ? do_sys_openat2 (fs/open.c:1405) [ 21.658735][ T381] ? do_sys_openat2 (fs/open.c:1411) [ 21.658910][ T381] ? do_sys_openat2 (fs/open.c:1411) [ 21.659090][ T381] __sys_sendmsg (net/socket.c:2654) [ 21.659276][ T381] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.659480][ T381] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.659665][ T381] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.659892][ T381] RIP: 0033:0x7f4f7dc6c9a7 [ 21.660076][ T381] Code: Unable to access opcode bytes at 0x7f4f7dc6c97d. Code starting with the faulting instruction =========================================== [ 21.660304][ T381] RSP: 002b:00007fff9b6e0448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.660569][ T381] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f4f7dc6c9a7 [ 21.660823][ T381] RDX: 0000000000000000 RSI: 00007fff9b6e04b0 RDI: 0000000000000005 [ 21.661068][ T381] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.661318][ T381] R10: 00007f4f7db25708 R11: 0000000000000246 R12: 0000000000000000 [ 21.661580][ T381] R13: 0000000067858405 R14: 0000000000483b60 R15: 00007fff9b6e597a | [ 21.664782][ T381] #1: ffff88800abd4f90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 21.665188][ T381] #2: ffffffffa6fddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 21.665587][ T381] stack backtrace: | [ 21.666133][ T381] Tainted: [W]=WARN [ 21.666306][ T381] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.666589][ T381] Call Trace: [ 21.666761][ T381] [ 21.666878][ T381] dump_stack_lvl (lib/dump_stack.c:123) [ 21.667115][ T381] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 21.667348][ T381] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 21.667567][ T381] ? 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) [ 21.667853][ T381] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.668083][ T381] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 21.668289][ T381] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 21.668509][ T381] ? 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) [ 21.668788][ T381] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 21.669005][ T381] ? 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) [ 21.669273][ T381] ? 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) [ 21.669542][ T381] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 21.669761][ T381] ? static_key_slow_inc (kernel/jump_label.c:191) [ 21.669969][ T381] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.670186][ T381] ? 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)) [ 21.670455][ T381] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 21.670734][ T381] ? 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) [ 21.670989][ T381] 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) [ 21.671253][ T381] static_key_slow_inc (kernel/jump_label.c:191) [ 21.671458][ T381] tc_new_tfilter (net/sched/cls_api.c:2385) [ 21.671671][ T381] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.671832][ T381] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.672051][ T381] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 21.672270][ T381] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 21.672458][ T381] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 21.672606][ T381] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 21.672817][ T381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.673017][ T381] ? 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) [ 21.673159][ T381] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 21.673319][ T381] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 21.673529][ T381] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 21.673739][ T381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 21.673950][ T381] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 21.674159][ T381] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 21.674351][ T381] ? 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) [ 21.674555][ T381] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 21.674760][ T381] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 21.674970][ T381] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 21.675187][ T381] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 21.675405][ T381] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 21.675631][ T381] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 21.675838][ T381] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 21.676042][ T381] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 21.676324][ T381] ___sys_sendmsg (net/socket.c:2624) [ 21.676565][ T381] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 21.676833][ T381] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 21.677050][ T381] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 21.677302][ T381] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 21.677525][ T381] ? 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) [ 21.677729][ T381] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 21.677990][ T381] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 21.678181][ T381] ? do_sys_openat2 (fs/open.c:1405) [ 21.678512][ T381] ? do_sys_openat2 (fs/open.c:1411) [ 21.678718][ T381] ? do_sys_openat2 (fs/open.c:1411) [ 21.678931][ T381] __sys_sendmsg (net/socket.c:2654) [ 21.679126][ T381] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 21.679456][ T381] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 21.679658][ T381] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 21.679905][ T381] RIP: 0033:0x7f4f7dc6c9a7 [ 21.680118][ T381] Code: Unable to access opcode bytes at 0x7f4f7dc6c97d. Code starting with the faulting instruction =========================================== [ 21.680540][ T381] RSP: 002b:00007fff9b6e0448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.680841][ T381] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f4f7dc6c9a7 [ 21.681132][ T381] RDX: 0000000000000000 RSI: 00007fff9b6e04b0 RDI: 0000000000000005 [ 21.681545][ T381] RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 [ 21.681879][ T381] R10: 00007f4f7db25708 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