====================================== | [ 1690.855594][ C3] #6: ffffffffacf447e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) | [ 1690.856140][ C3] #7: ffffffffacf447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/ipv4/ip_input.c:232) | [ 1690.856679][ C3] | [ 1690.856679][ C3] stack backtrace: [ 1690.857431][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1690.858065][ C3] Call Trace: [ 1690.858251][ C3] [ 1690.858425][ C3] dump_stack_lvl (lib/dump_stack.c:107) [ 1690.858683][ C3] validate_chain (kernel/locking/lockdep.c:3859) [ 1690.858967][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 1690.859245][ C3] ? 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) [ 1690.859487][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1690.859748][ C3] __lock_acquire (kernel/locking/lockdep.c:5137) [ 1690.860003][ C3] ? lock_downgrade (kernel/locking/lockdep.c:5656) [ 1690.860264][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1690.860530][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1690.860800][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 1690.861052][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1690.861366][ C3] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 1690.861665][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1690.861915][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 1690.862189][ C3] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 1690.862465][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 1690.862716][ C3] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 1690.862987][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) [ 1690.863246][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 1690.863519][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1690.863831][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 1690.864118][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1690.864410][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 1690.864693][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 1690.864982][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 1690.865317][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 1690.865567][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1690.865812][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1690.866088][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) [ 1690.866424][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1690.866672][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 1690.866989][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 1690.867364][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 1690.867628][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1690.867877][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) [ 1690.868206][ C3] netif_receive_skb_internal (net/core/dev.c:5742) [ 1690.868497][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) [ 1690.868828][ C3] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1423) [ 1690.869098][ C3] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1494 (discriminator 4)) [ 1690.869366][ C3] netif_receive_skb (net/core/dev.c:5801) [ 1690.869629][ C3] tcf_mirred_to_dev (net/sched/act_mirred.c:251 net/sched/act_mirred.c:326) act_mirred [ 1690.869993][ C3] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 1690.870346][ C3] tcf_mirred_act (net/sched/act_mirred.c:461 (discriminator 2)) act_mirred [ 1690.870665][ C3] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 1690.870962][ C3] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 1690.871296][ C3] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 1690.871620][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 1690.871905][ C3] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 1690.872168][ C3] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 1690.872447][ C3] ? __bfs (kernel/locking/lockdep.c:1787) [ 1690.872679][ C3] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 1690.872955][ C3] ? __bfs (kernel/locking/lockdep.c:1787) [ 1690.873185][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 1690.873467][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 1690.873746][ C3] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 1690.874019][ C3] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 1690.874314][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 1690.874599][ C3] ? 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) [ 1690.874845][ C3] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 1690.875094][ C3] tcf_classify (net/sched/cls_api.c:1830) [ 1690.875372][ C3] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 1690.875639][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1690.875914][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 1690.876204][ C3] tc_run (net/core/dev.c:3945) [ 1690.876418][ C3] ? __pfx_tc_run (net/core/dev.c:3929) [ 1690.876662][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1690.876941][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 1690.877214][ C3] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 1690.877484][ C3] ? 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) [ 1690.877740][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1690.877977][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) [ 1690.878266][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 1690.878630][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 1690.878901][ C3] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 1690.879171][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 1690.879494][ C3] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) [ 1690.879770][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 1690.879996][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 1690.880276][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1690.880573][ C3] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) [ 1690.880825][ C3] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 1690.881104][ C3] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1494 (discriminator 4)) [ 1690.881356][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 1690.881635][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 1690.881942][ C3] ? tcp_small_queue_check.isra.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/ipv4/tcp_output.c:2623) [ 1690.882257][ C3] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 1690.882513][ C3] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) [ 1690.882753][ C3] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) [ 1690.883032][ C3] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) [ 1690.883320][ C3] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 1690.883627][ C3] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6881) [ 1690.883912][ C3] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6621) [ 1690.884220][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 1690.884509][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 1690.884761][ C3] ? 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) [ 1690.885010][ C3] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930) [ 1690.885274][ C3] ? __pfx_tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1887) [ 1690.885548][ C3] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2330) [ 1690.885793][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) [ 1690.886065][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 1690.886332][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1690.886636][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 1690.886937][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1690.887226][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 1690.887491][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 1690.887798][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 1690.888130][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 1690.888343][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1690.888602][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1690.888889][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 1690.889158][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1690.889417][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 1690.889729][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 1690.890072][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 1690.890408][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1690.890663][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 1690.890932][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 1690.891196][ C3] __napi_poll.constprop.0 (net/core/dev.c:6584) [ 1690.891480][ C3] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) [ 1690.891728][ C3] ? __pfx_net_rx_action (net/core/dev.c:6750) [ 1690.892034][ C3] ? __pfx___schedule (kernel/sched/core.c:6608) [ 1690.892298][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 1690.892574][ C3] __do_softirq (kernel/softirq.c:553) [ 1690.892834][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 1690.893111][ C3] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 1690.893355][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 1690.893639][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 1690.893934][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 1690.894222][ C3] kthread (kernel/kthread.c:388) [ 1690.894471][ C3] ? __pfx_kthread (kernel/kthread.c:341) [ 1690.894721][ C3] ret_from_fork (arch/x86/kernel/process.c:147) [ 1690.894959][ C3] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested