====================================== | [ 1153.915470] #6: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5787 net/core/dev.c:5859) | [ 1153.915921] #7: ffffffff83b678c0 (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) | [ 1153.916403] | [ 1153.916403] stack backtrace: [ 1153.917058] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1153.917650] Call Trace: [ 1153.917789] [ 1153.917911] dump_stack_lvl (lib/dump_stack.c:108) [ 1153.918123] __lock_acquire (kernel/locking/lockdep.c:5138) [ 1153.918393] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) [ 1153.918635] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) [ 1153.918839] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1153.919062] ? sk_filter_trim_cap (net/core/filter.c:165) [ 1153.919291] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 1153.919529] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1153.919725] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1153.919918] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 1153.92016 DETECTED CRASH, lowering timeout 1] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1153.920401] __netif_receive_skb_one_core (net/core/dev.c:5600 (discriminator 4)) [ 1153.920660] netif_receive_skb (net/core/dev.c:5800 net/core/dev.c:5859) [ 1153.920876] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred [ 1153.921164] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 1153.921477] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit [ 1153.921765] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) [ 1153.921973] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 1153.922236] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower [ 1153.922553] ? __bfs (kernel/locking/lockdep.c:1787) [ 1153.922734] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 1153.922964] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 1153.923214] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 1153.923443] ? lock_release (kernel/locking/lockdep.c:5430 kernel/locking/lockdep.c:5774) [ 1153.923657] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) [ 1153.923878] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) [ 1153.924087] tc_run (net/core/dev.c:3946) [ 1153.924341] __dev_queue_xmit (net/core/dev.c:4070 net/core/dev.c:4302) [ 1153.924579] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 1153.924785] ip_finish_output2 (./include/linux/netdevice.h:3172 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 1153.924998] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 1153.925223] __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 1153.925433] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 1153.925654] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 1153.925873] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 1153.926164] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6867) [ 1153.926402] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1153.926610] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 1153.926820] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 1153.927016] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 1153.927207] ? process_backlog (net/core/dev.c:6036 (discriminator 2)) [ 1153.927433] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 1153.927710] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1153.927961] __netif_receive_skb_one_core (net/core/dev.c:5600 (discriminator 4)) [ 1153.928216] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6043) [ 1153.928418] __napi_poll.constprop.0 (net/core/dev.c:6671) [ 1153.928667] net_rx_action (net/core/dev.c:6742 net/core/dev.c:6871) [ 1153.928907] __do_softirq (kernel/softirq.c:553) [ 1153.929107] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) [ 1153.929364] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) [ 1153.929587] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) [ 1153.929795] kthread (kernel/kthread.c:388) [ 1153.929964] ? __pfx_kthread (kernel/kthread.c:341) [ 1153.930174] ret_from_fork (arch/x86/kernel/process.c:147) [ 1153.930379] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested