====================================== | [ 2202.326205][ C2] #6: ffffffffb29447e0 (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)) | [ 2202.326728][ C2] #7: ffffffffb29447e0 (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) | [ 2202.327235][ C2] | [ 2202.327235][ C2] stack backtrace: [ 2202.327942][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2202.328563][ C2] Call Trace: [ 2202.328738][ C2] [ 2202.328901][ C2] dump_stack_lvl (lib/dump_stack.c:107) [ 2202.329138][ C2] validate_chain (kernel/locking/lockdep.c:3859) [ 2202.329384][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2202.329654][ C2] ? 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) [ 2202.329889][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2202.330128][ C2] __lock_acquire (kernel/locking/lockdep.c:5137) [ 2202.330371][ C2] ? lock_downgrade (kernel/locking/lockdep.c:5656) [ 2202.330622][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2202.330857][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2202.331125][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 2202.331370][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2202.331661][ C2] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 2202.331947][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2202.332195][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 2202.332444][ C2] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 2202.332710][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 2202.332948][ C2] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 2202.333195][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) [ 2202.333454][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2202.333718][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2202.334016][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2202.334298][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2202.334601][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2202.334856][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2202.335134][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1136 ./include/linux/skbuff.h:1188 net/ipv4/ip_input.c:390) [ 2202.335465][ C2] 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) [ 2202.335674][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2202.335914][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2202.336184][ C2] ? 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)) [ 2202.336489][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2202.336723][ C2] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2202.337032][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2202.337349][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2202.337601][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2202.337837][ C2] ? 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)) [ 2202.338144][ C2] netif_receive_skb_internal (net/core/dev.c:5742) [ 2202.338436][ C2] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) [ 2202.338762][ C2] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1426) [ 2202.339026][ C2] ? __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:1497 (discriminator 4)) [ 2202.339263][ C2] netif_receive_skb (net/core/dev.c:5801) [ 2202.339517][ C2] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred [ 2202.339834][ C2] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 2202.340161][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2202.340438][ C2] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 2202.340734][ C2] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 2202.341015][ C2] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 2202.341313][ C2] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 2202.341643][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 2202.341904][ C2] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 2202.342154][ C2] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 2202.342419][ C2] ? __bfs (kernel/locking/lockdep.c:1787) [ 2202.342646][ C2] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 2202.342915][ C2] ? __bfs (kernel/locking/lockdep.c:1787) [ 2202.343120][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 2202.343376][ C2] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 2202.343654][ C2] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 2202.343929][ C2] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 2202.344213][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2202.344474][ C2] ? 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) [ 2202.344717][ C2] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 2202.344962][ C2] tcf_classify (net/sched/cls_api.c:1830) [ 2202.345205][ C2] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 2202.345465][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2202.345725][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2202.345990][ C2] tc_run (net/core/dev.c:3945) [ 2202.346201][ C2] ? __pfx_tc_run (net/core/dev.c:3929) [ 2202.346435][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2202.346681][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2202.346940][ C2] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 2202.347190][ C2] ? 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) [ 2202.347434][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2202.347659][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) [ 2202.347940][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 2202.348269][ C2] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 2202.348520][ C2] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 2202.348788][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 2202.349072][ C2] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) [ 2202.349343][ C2] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 2202.349568][ C2] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 2202.349819][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2202.350114][ C2] ? ip_local_out (./include/linux/skbuff.h:1136 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) [ 2202.350352][ C2] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 2202.350615][ C2] ? __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:1497 (discriminator 4)) [ 2202.350857][ C2] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 2202.351132][ C2] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 2202.351410][ C2] ? 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) [ 2202.351713][ C2] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 2202.351967][ C2] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) [ 2202.352192][ C2] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) [ 2202.352467][ C2] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) [ 2202.352740][ C2] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 2202.353024][ C2] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6881) [ 2202.353303][ C2] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6621) [ 2202.353607][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 2202.353863][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 2202.354114][ C2] ? 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) [ 2202.354346][ C2] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930) [ 2202.354581][ C2] ? __pfx_tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1887) [ 2202.354862][ C2] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2330) [ 2202.355103][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) [ 2202.355354][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2202.355613][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2202.355907][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2202.356185][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2202.356475][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2202.356723][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2202.357012][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1136 ./include/linux/skbuff.h:1188 net/ipv4/ip_input.c:390) [ 2202.357343][ C2] 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) [ 2202.357551][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2202.357780][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2202.358053][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2202.358310][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2202.358546][ C2] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2202.358854][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2202.359182][ C2] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2202.359474][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2202.359716][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2202.359978][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 2202.360217][ C2] __napi_poll.constprop.0 (net/core/dev.c:6584) [ 2202.360492][ C2] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) [ 2202.360739][ C2] ? __pfx_net_rx_action (net/core/dev.c:6750) [ 2202.361001][ C2] ? __pfx___schedule (kernel/sched/core.c:6608) [ 2202.361255][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 2202.361524][ C2] __do_softirq (kernel/softirq.c:553) [ 2202.361761][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 2202.362025][ C2] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 2202.362264][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 2202.362524][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2202.362799][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2202.363075][ C2] kthread (kernel/kthread.c:388) [ 2202.363295][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 2202.363535][ C2] ret_from_fork (arch/x86/kernel/process.c:147) [ 2202.363767][ C2] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested