Hi, Kernel In based on Linux Version 2.6.27.18, Cavium octeon Board is used. In SMP mode but one one cpu is loaded with Linux Kernel. Its getting crashed in WARN_ON_ONCE in _local_bh_enable_ip called from local_bh_enable. Please Find Below Stack Trace Regarding this Crash: [<ffffffff81154108>] warn_on_slowpath+0x58/0x90 [<ffffffff8115bd20>] local_bh_enable+0x88/0xf8 [<ffffffff81344a44>] dev_queue_xmit+0x144/0x688 [<ffffffff81301f04>] bond_dev_queue_xmit+0x44/0x178 [<ffffffff81302408>] bond_xmit_activebackup+0xb0/0xe8 [<ffffffff81344ea4>] dev_queue_xmit+0x5a4/0x688 [<ffffffff813d59b4>] vlan_dev_hwaccel_hard_start_xmit+0x8c/0xa0 [<ffffffff81344ea4>] dev_queue_xmit+0x5a4/0x688 [<ffffffff81377cbc>] ip_push_pending_frames+0x37c/0x4c0 [<ffffffff813a0768>] icmp_reply+0x170/0x290 [<ffffffff813a0a58>] icmp_echo+0x58/0x68 [<ffffffff813a11b4>] icmp_rcv+0x334/0x390 [<ffffffff813721a4>] ip_local_deliver_finish+0x13c/0x2d8 [<ffffffff813718c4>] ip_rcv_finish+0x134/0x510 [<ffffffff81343af4>] netif_receive_skb+0x41c/0x5d8 [<ffffffff81343d58>] process_backlog+0xa8/0x160 [<ffffffff8134186c>] net_rx_action+0x194/0x2e8 [<ffffffff8115b71c>] __do_softirq+0x114/0x288 [<ffffffff8115b910>] do_softirq+0x80/0x98 [<ffffffff8115bb8c>] irq_exit+0x64/0x78 [<ffffffff81100e40>] plat_irq_dispatch+0xd0/0x1d0 [<ffffffff81120c80>] ret_from_irq+0x0/0x4 [<ffffffff81120ea0>] r4k_wait+0x20/0x40 [<ffffffff81123414>] cpu_idle+0x34/0x60
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