====================================== | [ 14.889610][ T307] RCU nest depth: 0, expected: 0 | [ 14.889888][ T307] 2 locks held by tc/307: | [ 14.890119][ T307] #0: ffffffff85fe7e88 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 14.890625][ T307] #1: ffff888002acfb90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 14.891542][ T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.891920][ T307] Call Trace: [ 14.892141][ T307] [ 14.892288][ T307] dump_stack_lvl (lib/dump_stack.c:123) [ 14.892573][ T307] __might_resched (kernel/sched/core.c:8759) [ 14.892854][ T307] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 14.893135][ T307] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 14.893397][ T307] static_key_slow_inc (kernel/jump_label.c:191) [ 14.893654][ T307] tc_new_tfilter (net/sched/cls_api.c:2385) [ 14.893947][ T307] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 14.894146][ T307] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 14.894456][ T307] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 14.894734][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 14.895014][ T307] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 14.895289][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 14.895779][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 14.896050][ T307] ? 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) [ 14.896320][ T307] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 14.896545][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 14.896830][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 14.897100][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 14.897392][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 14.897700][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 14.897977][ T307] ? 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) [ 14.898250][ T307] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 14.898525][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 14.898789][ T307] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 14.899068][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 14.899359][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 14.899657][ T307] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 14.899938][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 14.900207][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 14.900553][ T307] ___sys_sendmsg (net/socket.c:2624) [ 14.900828][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 14.901168][ T307] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 14.901466][ T307] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 14.901797][ T307] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 14.902082][ T307] ? 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) [ 14.902371][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 14.902708][ T307] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 14.902976][ T307] ? do_sys_openat2 (fs/open.c:1405) [ 14.903244][ T307] ? do_sys_openat2 (fs/open.c:1411) [ 14.903521][ T307] ? do_sys_openat2 (fs/open.c:1411) [ 14.903806][ T307] __sys_sendmsg (net/socket.c:2654) [ 14.904102][ T307] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 14.904415][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.904690][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.905019][ T307] RIP: 0033:0x7fb404f229a7 [ 14.905309][ T307] Code: Unable to access opcode bytes at 0x7fb404f2297d. Code starting with the faulting instruction =========================================== [ 14.905684][ T307] RSP: 002b:00007ffef083fa88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 14.906109][ T307] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fb404f229a7 [ 14.906531][ T307] RDX: 0000000000000000 RSI: 00007ffef083faf0 RDI: 0000000000000005 [ 14.906922][ T307] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 14.907320][ T307] R10: 00007fb404ddb708 R11: 0000000000000246 R12: 0000000000000000 [ 14.907720][ T307] R13: 0000000067858235 R14: 0000000000483b60 R15: 00007ffef0845980 | [ 14.911034][ T307] #1: ffff888002acfb90 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 14.911415][ T307] #2: ffffffff855ddcd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 14.911791][ T307] stack backtrace: | [ 14.912299][ T307] Tainted: [W]=WARN [ 14.912579][ T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.912837][ T307] Call Trace: [ 14.912993][ T307] [ 14.913103][ T307] dump_stack_lvl (lib/dump_stack.c:123) [ 14.913309][ T307] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 14.913532][ T307] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 14.913741][ T307] ? 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) [ 14.914012][ T307] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 14.914221][ T307] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 14.914420][ T307] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 14.914640][ T307] ? 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) [ 14.914890][ T307] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 14.915225][ T307] ? 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) [ 14.915490][ T307] ? 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) [ 14.915754][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 14.915955][ T307] ? static_key_slow_inc (kernel/jump_label.c:191) [ 14.916165][ T307] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 14.916367][ T307] ? 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)) [ 14.916616][ T307] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 14.916994][ T307] ? 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) [ 14.917243][ T307] 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) [ 14.917493][ T307] static_key_slow_inc (kernel/jump_label.c:191) [ 14.917704][ T307] tc_new_tfilter (net/sched/cls_api.c:2385) [ 14.918041][ T307] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 14.918199][ T307] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 14.918413][ T307] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 14.918632][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 14.918954][ T307] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 14.919175][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 14.919413][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 14.919634][ T307] ? 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) [ 14.919971][ T307] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 14.920145][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 14.920369][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 14.920584][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 14.920939][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 14.921200][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 14.921428][ T307] ? 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) [ 14.921650][ T307] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 14.922013][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 14.922235][ T307] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 14.922461][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 14.922684][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 14.923063][ T307] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 14.923289][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 14.923517][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 14.923796][ T307] ___sys_sendmsg (net/socket.c:2624) [ 14.924149][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 14.924435][ T307] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 14.924665][ T307] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 14.924951][ T307] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 14.925302][ T307] ? 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) [ 14.925646][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 14.925936][ T307] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 14.926276][ T307] ? do_sys_openat2 (fs/open.c:1405) [ 14.926485][ T307] ? do_sys_openat2 (fs/open.c:1411) [ 14.926708][ T307] ? do_sys_openat2 (fs/open.c:1411) [ 14.926941][ T307] __sys_sendmsg (net/socket.c:2654) [ 14.927298][ T307] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 14.927542][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.927777][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.928062][ T307] RIP: 0033:0x7fb404f229a7 [ 14.928446][ T307] Code: Unable to access opcode bytes at 0x7fb404f2297d. Code starting with the faulting instruction =========================================== [ 14.928735][ T307] RSP: 002b:00007ffef083fa88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 14.929085][ T307] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007fb404f229a7 [ 14.929550][ T307] RDX: 0000000000000000 RSI: 00007ffef083faf0 RDI: 0000000000000005 [ 14.929897][ T307] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 14.930235][ T307] R10: 00007fb404ddb708 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