====================================== | [ 2047.086761][ C0] #6: ffffffff935447e0 (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)) | [ 2047.087324][ C0] #7: ffffffff935447e0 (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) | [ 2047.087869][ C0] | [ 2047.087869][ C0] stack backtrace: [ 2047.088618][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2047.089319][ C0] Call Trace: [ 2047.089503][ C0] [ 2047.089678][ C0] dump_stack_lvl (lib/dump_stack.c:107) [ 2047.089958][ C0] validate_chain (kernel/locking/lockdep.c:3859) [ 2047.090225][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2047.090500][ C0] ? 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) [ 2047.090747][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2047.091008][ C0] __lock_acquire (kernel/locking/lockdep.c:5137) [ 2047.091272][ C0] ? lock_downgrade (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:67 ./arch/x86/include/asm/irqflags.h:103 kernel/locking/lockdep.c:5653) [ 2047.091548][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2047.091816][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2047.092085][ C0] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2047.092381][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2047.092705][ C0] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 2047.093001][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2047.093259][ C0] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2047.093538][ C0] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 2047.093819][ C0] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2047.094072][ C0] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2047.094334][ C0] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2047.094598][ C0] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2047.094892][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2047.095195][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2047.095489][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2047.095799][ C0] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2047.096061][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2047.096351][ C0] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2047.096732][ C0] ip_rcv (./include/net/dst.h:461 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 2047.096960][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2047.097202][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2047.097492][ C0] ? 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)) [ 2047.097848][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2047.098103][ C0] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2047.098415][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2047.098761][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2047.099045][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2047.099313][ C0] ? 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)) [ 2047.099631][ C0] netif_receive_skb_internal (net/core/dev.c:5742) [ 2047.099933][ C0] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) [ 2047.100294][ C0] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1420) [ 2047.100585][ C0] ? __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)) [ 2047.100832][ C0] netif_receive_skb (net/core/dev.c:5801) [ 2047.101093][ C0] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred [ 2047.101424][ C0] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 2047.101801][ C0] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 2047.102116][ C0] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 2047.102419][ C0] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 2047.102738][ C0] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 2047.103079][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 2047.103366][ C0] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 2047.103636][ C0] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 2047.103918][ C0] ? __bfs (kernel/locking/lockdep.c:1787) [ 2047.104165][ C0] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 2047.104449][ C0] ? __bfs (kernel/locking/lockdep.c:1787) [ 2047.104672][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 2047.104956][ C0] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 2047.105242][ C0] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 2047.105518][ C0] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 2047.105845][ C0] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 2047.106106][ C0] tcf_classify (net/sched/cls_api.c:1830) [ 2047.106373][ C0] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 2047.106639][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2047.106920][ C0] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2047.107217][ C0] tc_run (net/core/dev.c:3945) [ 2047.107435][ C0] ? __pfx_tc_run (net/core/dev.c:3929) [ 2047.107682][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2047.107966][ C0] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2047.108241][ C0] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 2047.108508][ C0] ? 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) [ 2047.108777][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2047.109014][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) [ 2047.109302][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 2047.109653][ C0] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 2047.109956][ C0] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 2047.110229][ C0] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 2047.110527][ C0] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) [ 2047.110847][ C0] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 2047.111090][ C0] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 2047.111346][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2047.111647][ C0] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:451 net/ipv4/ip_output.c:129) [ 2047.111930][ C0] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 2047.112203][ C0] ? __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)) [ 2047.112457][ C0] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 2047.112768][ C0] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 2047.113072][ C0] ? 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) [ 2047.113391][ C0] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 2047.113684][ C0] ? ipv4_mtu (./include/net/net_namespace.h:385 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) [ 2047.113917][ C0] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) [ 2047.114212][ C0] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) [ 2047.114503][ C0] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 2047.114800][ C0] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) [ 2047.115103][ C0] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2047.115353][ C0] ? 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) [ 2047.115600][ C0] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) [ 2047.115890][ C0] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) [ 2047.116202][ C0] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) [ 2047.116489][ C0] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2047.116815][ C0] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 2047.117063][ C0] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 2047.117305][ C0] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2047.117592][ C0] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2047.117857][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2047.118156][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2047.118446][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2047.118749][ C0] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2047.119011][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2047.119299][ C0] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2047.119655][ C0] ip_rcv (./include/net/dst.h:461 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 2047.119873][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2047.120128][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2047.120424][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2047.120694][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2047.120944][ C0] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2047.121290][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2047.121628][ C0] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2047.121929][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2047.122217][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2047.122485][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 2047.122738][ C0] __napi_poll.constprop.0 (net/core/dev.c:6585) [ 2047.123039][ C0] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) [ 2047.123284][ C0] ? __pfx_net_rx_action (net/core/dev.c:6750) [ 2047.123564][ C0] ? __pfx___schedule (kernel/sched/core.c:6608) [ 2047.123856][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 2047.124136][ C0] __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554) [ 2047.124383][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) [ 2047.124676][ C0] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 2047.124912][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 2047.125192][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2047.125487][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 2047.125794][ C0] kthread (kernel/kthread.c:388) [ 2047.126026][ C0] ? __pfx_kthread (kernel/kthread.c:341) [ 2047.126279][ C0] ret_from_fork (arch/x86/kernel/process.c:153) [ 2047.126533][ C0] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested