====================================== | [ 2391.395807][ C2] #6: ffffffffa63467e0 (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:5696 (discriminator 16)) | [ 2391.396339][ C2] #7: ffffffffa63467e0 (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) | [ 2391.396878][ C2] | [ 2391.396878][ C2] stack backtrace: [ 2391.397590][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2391.398224][ C2] Call Trace: [ 2391.398409][ C2] [ 2391.398583][ C2] dump_stack_lvl (lib/dump_stack.c:107) [ 2391.398834][ C2] validate_chain (kernel/locking/lockdep.c:3859) [ 2391.399082][ C2] ? DETECTED CRASH, lowering timeout __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2391.399359][ 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) [ 2391.399598][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2391.399823][ C2] __lock_acquire (kernel/locking/lockdep.c:5137) [ 2391.400086][ C2] ? lock_downgrade (kernel/locking/lockdep.c:5656) [ 2391.400342][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2391.400577][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2391.400839][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2391.401084][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2391.401388][ C2] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 2391.401681][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2391.401934][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2391.402184][ C2] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 2391.402457][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2391.402700][ C2] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2391.402941][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2391.403214][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2391.403485][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2391.403777][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2391.404069][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2391.404358][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2391.404625][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2391.404902][ C2] ? tcp_v4_early_demux (./include/linux/skbuff.h:1163 net/ipv4/tcp_ipv4.c:1988) [ 2391.405173][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2391.405521][ 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) [ 2391.405728][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2391.405970][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2391.406258][ C2] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5696 (discriminator 16)) [ 2391.406564][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2391.406816][ C2] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) [ 2391.407124][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5502) [ 2391.407455][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2391.407717][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2391.407961][ C2] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5696 (discriminator 16)) [ 2391.408264][ C2] netif_receive_skb_internal (net/core/dev.c:5709) [ 2391.408569][ C2] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5688) [ 2391.408902][ C2] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1420) [ 2391.409167][ 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:1491 (discriminator 4)) [ 2391.409420][ C2] netif_receive_skb (net/core/dev.c:5768) [ 2391.409676][ C2] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred [ 2391.410008][ C2] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 2391.410346][ C2] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 2391.410661][ C2] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 2391.410949][ C2] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 2391.411254][ C2] ? ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 2391.411497][ C2] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 2391.411823][ C2] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 2391.412097][ C2] ? __bfs (kernel/locking/lockdep.c:1787) [ 2391.412320][ C2] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 2391.412594][ C2] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 2391.412881][ C2] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 2391.413153][ 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) [ 2391.413399][ C2] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 2391.413692][ C2] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 2391.413963][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2391.414250][ 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) [ 2391.414496][ 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) [ 2391.414742][ C2] ? check_prev_add (kernel/locking/lockdep.c:3172) [ 2391.415010][ C2] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 2391.415261][ C2] tcf_classify (net/sched/cls_api.c:1830) [ 2391.415504][ C2] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 2391.415762][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) [ 2391.416027][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) [ 2391.416293][ C2] tc_run (net/core/dev.c:3912) [ 2391.416518][ C2] ? __pfx_tc_run (net/core/dev.c:3896) [ 2391.416763][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2391.417020][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4251) [ 2391.417289][ C2] __dev_queue_xmit (net/core/dev.c:4036 net/core/dev.c:4268) [ 2391.417548][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2391.417810][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 2391.418145][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4235) [ 2391.418430][ C2] ? __pfx_vrf_output_direct_finish (./include/linux/skbuff.h:1134) vrf [ 2391.418778][ C2] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 2391.419038][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 2391.419324][ C2] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) [ 2391.419605][ C2] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 2391.419830][ C2] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 2391.420089][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2391.420385][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 2391.420730][ C2] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) [ 2391.420985][ C2] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 2391.421244][ 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:1491 (discriminator 4)) [ 2391.421494][ C2] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 2391.421767][ C2] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 2391.422063][ 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) [ 2391.422372][ C2] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 2391.422634][ C2] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2655 ./include/net/ip.h:465 net/ipv4/route.c:1326) [ 2391.422861][ C2] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) [ 2391.423143][ C2] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) [ 2391.423423][ C2] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 2391.423733][ C2] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) [ 2391.424017][ C2] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2391.424261][ 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) [ 2391.424524][ C2] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) [ 2391.424790][ C2] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) [ 2391.425095][ C2] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) [ 2391.425380][ C2] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2391.425679][ C2] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 2391.425932][ C2] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 2391.426180][ C2] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2391.426450][ C2] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2391.426709][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2391.427005][ C2] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2391.427300][ C2] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2391.427590][ C2] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2391.427853][ C2] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2391.428136][ C2] ? tcp_v4_early_demux (./include/linux/skbuff.h:1163 net/ipv4/tcp_ipv4.c:1988) [ 2391.428417][ C2] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2391.428749][ 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) [ 2391.428966][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2391.429200][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2391.429469][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5950) [ 2391.429727][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2391.429975][ C2] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) [ 2391.430288][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5502) [ 2391.430628][ C2] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2391.430915][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2391.431162][ C2] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5950) [ 2391.431419][ C2] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5952) [ 2391.431677][ C2] __napi_poll.constprop.0 (net/core/dev.c:6551) [ 2391.431956][ C2] net_rx_action (net/core/dev.c:6620 net/core/dev.c:6753) [ 2391.432202][ C2] ? __pfx_net_rx_action (net/core/dev.c:6717) [ 2391.432481][ C2] ? __pfx___schedule (kernel/sched/core.c:6608) [ 2391.432741][ C2] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 2391.433012][ C2] __do_softirq (kernel/softirq.c:553) [ 2391.433255][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 2391.433550][ C2] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 2391.433781][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 2391.434042][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2391.434324][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2391.434624][ C2] kthread (kernel/kthread.c:388) [ 2391.434838][ C2] ? __pfx_kthread (kernel/kthread.c:341) [ 2391.435078][ C2] ret_from_fork (arch/x86/kernel/process.c:147) [ 2391.435329][ C2] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested