====================================== | [ 15.176973][ T295] RCU nest depth: 0, expected: 0 | [ 15.177162][ T295] 2 locks held by tc/295: | [ 15.177303][ T295] #0: ffffffff8fc09c08 (rtnl_mutex){+.+.}-{4:4}, at: tc_new_tfilter (net/sched/cls_api.c:2261) | [ 15.177638][ T295] #1: ffff88800a819290 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) [ 15.178230][ T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.178453][ T295] Call Trace: [ 15.178593][ T295] [ 15.178713][ T295] dump_stack_lvl (lib/dump_stack.c:123) [ 15.178899][ T295] __might_resched (kernel/sched/core.c:8759) [ 15.179078][ T295] ? tc_new_tfilter (net/sched/cls_api.c:2383) [ 15.179261][ T295] cpus_read_lock (./include/linux/kernel.h:73 ./include/linux/percpu-rwsem.h:49 kernel/cpu.c:490) [ 15.179439][ T295] static_key_slow_inc (kernel/jump_label.c:191) [ 15.179615][ T295] tc_new_tfilter (net/sched/cls_api.c:2385) [ 15.179800][ T295] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 15.179937][ T295] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 15.180152][ T295] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 15.180342][ T295] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 15.180526][ T295] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 15.180854][ T295] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 15.181034][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 15.181215][ T295] ? 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) [ 15.181393][ T295] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 15.181531][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 15.181707][ T295] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 15.181887][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 15.182064][ T295] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 15.182256][ T295] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 15.182435][ T295] ? 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) [ 15.182611][ T295] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 15.182790][ T295] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 15.182966][ T295] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 15.183155][ T295] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 15.183333][ T295] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 15.183517][ T295] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 15.183697][ T295] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 15.183870][ T295] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 15.184098][ T295] ___sys_sendmsg (net/socket.c:2624) [ 15.184273][ T295] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 15.184497][ T295] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 15.184677][ T295] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 15.184891][ T295] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 15.185065][ T295] ? 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) [ 15.185251][ T295] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 15.185472][ T295] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 15.185647][ T295] ? do_sys_openat2 (fs/open.c:1405) [ 15.185825][ T295] ? do_sys_openat2 (fs/open.c:1411) [ 15.186008][ T295] ? do_sys_openat2 (fs/open.c:1411) [ 15.186189][ T295] __sys_sendmsg (net/socket.c:2654) [ 15.186370][ T295] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 15.186563][ T295] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 15.186743][ T295] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 15.186958][ T295] RIP: 0033:0x7f03ad08a9a7 [ 15.187150][ T295] Code: Unable to access opcode bytes at 0x7f03ad08a97d. Code starting with the faulting instruction =========================================== [ 15.187375][ T295] RSP: 002b:00007ffc55f9ade8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.187638][ T295] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f03ad08a9a7 [ 15.187901][ T295] RDX: 0000000000000000 RSI: 00007ffc55f9ae50 RDI: 0000000000000005 [ 15.188162][ T295] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 15.188428][ T295] R10: 00007f03acf43708 R11: 0000000000000246 R12: 00007ffc55f9f9b3 [ 15.188691][ T295] R13: 0000000067859577 R14: 0000000000483b60 R15: 00007ffc55f9f9c0 | [ 15.190988][ T295] #1: ffff88800a819290 (&tp->lock){+.+.}-{3:3}, at: tc_new_tfilter (net/sched/cls_api.c:2383) | [ 15.191256][ T295] #2: ffffffff8f1f1cd0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_inc (kernel/jump_label.c:191) | [ 15.191516][ T295] stack backtrace: | [ 15.191891][ T295] Tainted: [W]=WARN [ 15.192003][ T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.192188][ T295] Call Trace: [ 15.192299][ T295] [ 15.192376][ T295] dump_stack_lvl (lib/dump_stack.c:123) [ 15.192527][ T295] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 15.192681][ T295] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 15.192827][ T295] ? 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) [ 15.193016][ T295] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 15.193165][ T295] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 15.193312][ T295] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 15.193460][ T295] ? 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) [ 15.193637][ T295] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735) [ 15.193790][ T295] ? 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) [ 15.193969][ T295] ? 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) [ 15.194151][ T295] ? __pfx___mutex_lock (kernel/locking/mutex.c:734) [ 15.194299][ T295] ? static_key_slow_inc (kernel/jump_label.c:191) [ 15.194444][ T295] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 15.194590][ T295] ? 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)) [ 15.194771][ T295] ? __pfx_static_key_fast_inc_not_disabled (kernel/jump_label.c:128) [ 15.194960][ T295] ? 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) [ 15.195141][ T295] 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) [ 15.195325][ T295] static_key_slow_inc (kernel/jump_label.c:191) [ 15.195472][ T295] tc_new_tfilter (net/sched/cls_api.c:2385) [ 15.195622][ T295] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 15.195734][ T295] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 15.195887][ T295] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 15.196045][ T295] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6912) [ 15.196194][ T295] ? __pfx_tc_new_tfilter (net/sched/cls_api.c:2186) [ 15.196340][ T295] rtnetlink_rcv_msg (net/core/rtnetlink.c:6914) [ 15.196488][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 15.196638][ T295] ? 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) [ 15.196785][ T295] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 15.196899][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 15.197054][ T295] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 15.197203][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6817) [ 15.197350][ T295] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 15.197501][ T295] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 15.197651][ T295] ? 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) [ 15.197804][ T295] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 15.198030][ T295] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 15.198182][ T295] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 15.198330][ T295] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 15.198479][ T295] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 15.198702][ T295] ____sys_sendmsg (net/socket.c:713 net/socket.c:728 net/socket.c:2568) [ 15.198853][ T295] ? __pfx_____sys_sendmsg (net/socket.c:2514) [ 15.198999][ T295] ? __pfx_copy_msghdr_from_user (net/socket.c:2494) [ 15.199258][ T295] ___sys_sendmsg (net/socket.c:2624) [ 15.199409][ T295] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) [ 15.199590][ T295] ? __pfx____sys_sendmsg (net/socket.c:2611) [ 15.199736][ T295] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) [ 15.199994][ T295] ? __pfx_free_object_rcu (mm/kmemleak.c:514) [ 15.200139][ T295] ? 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) [ 15.200287][ T295] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 15.200478][ T295] ? kmem_cache_free (mm/slub.c:4613 mm/slub.c:4715) [ 15.200694][ T295] ? do_sys_openat2 (fs/open.c:1405) [ 15.200839][ T295] ? do_sys_openat2 (fs/open.c:1411) [ 15.200991][ T295] ? do_sys_openat2 (fs/open.c:1411) [ 15.201142][ T295] __sys_sendmsg (net/socket.c:2654) [ 15.201374][ T295] ? __pfx___sys_sendmsg (net/socket.c:2639) [ 15.201523][ T295] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 15.201671][ T295] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 15.201928][ T295] RIP: 0033:0x7f03ad08a9a7 [ 15.202081][ T295] Code: Unable to access opcode bytes at 0x7f03ad08a97d. Code starting with the faulting instruction =========================================== [ 15.202267][ T295] RSP: 002b:00007ffc55f9ade8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.202491][ T295] RAX: ffffffffffffffda RBX: 000000000047dbc0 RCX: 00007f03ad08a9a7 [ 15.202785][ T295] RDX: 0000000000000000 RSI: 00007ffc55f9ae50 RDI: 0000000000000005 [ 15.203010][ T295] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 15.203304][ T295] R10: 00007f03acf43708 R11: 0000000000000246 R12: 00007ffc55f9f9b3 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