Kernel panic in tcp_rearm_rto
Issue
-
Kernel panic in
tcp_rearm_rto
PANIC: "BUG: unable to handle kernel NULL pointer dereference at 0000000000000014" [exception RIP: tcp_rearm_rto+0xbf] RIP: ffffffff930b22cf RSP: ffff90a8bfbc3950 RFLAGS: 00010293 RAX: 00000000f7f3c38f RBX: ffff90a8a0f7be00 RCX: 000000002882c54c RDX: 0000000000000000 RSI: ffff9087b1abd700 RDI: ffff90a8a0f7be00 RBP: ffff90a8bfbc3958 R8: 00000000f7f3c38f R9: 0000000000000000 R10: ffffa84f32b6fa80 R11: ffffffffc054f5f8 R12: 000000002882c54c R13: ffff9087b1abd700 R14: 0000000000004100 R15: 000000002882c54c ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #10 [ffff90a8bfbc3960] tcp_ack at ffffffff930b274c #11 [ffff90a8bfbc3a00] tcp_rcv_established at ffffffff930b3be5 #12 [ffff90a8bfbc3a50] tcp_v4_do_rcv at ffffffff930becda #13 [ffff90a8bfbc3a98] tcp_v4_rcv at ffffffff930c03ec #14 [ffff90a8bfbc3b40] ip_local_deliver_finish at ffffffff9309886d #15 [ffff90a8bfbc3b68] ip_local_deliver at ffffffff93098b60 #16 [ffff90a8bfbc3bc8] ip_rcv_finish at ffffffff930984d0 #17 [ffff90a8bfbc3bf0] ip_rcv at ffffffff93098ea0 #18 [ffff90a8bfbc3c60] __netif_receive_skb_core at ffffffff9304dbd9 #19 [ffff90a8bfbc3cd8] __netif_receive_skb at ffffffff9304ded8 #20 [ffff90a8bfbc3cf8] netif_receive_skb_internal at ffffffff9304df60 #21 [ffff90a8bfbc3d28] napi_gro_receive at ffffffff9304ebe8 #22 [ffff90a8bfbc3d50] ixgbe_clean_rx_irq at ffffffffc05889d2 [ixgbe] #23 [ffff90a8bfbc3de0] ixgbe_poll at ffffffffc0589b56 [ixgbe] #24 [ffff90a8bfbc3e78] net_rx_action at ffffffff9304e57f #25 [ffff90a8bfbc3ef8] __do_softirq at ffffffff92aa41e5 #26 [ffff90a8bfbc3f68] call_softirq at ffffffff9318f42c #27 [ffff90a8bfbc3f80] do_softirq at ffffffff92a2f675 #28 [ffff90a8bfbc3fa0] irq_exit at ffffffff92aa4565 #29 [ffff90a8bfbc3fb8] do_IRQ at ffffffff93190716 --- <IRQ stack> ---
Environment
- Red Hat Enterprise Linux 7.7 with
kernel-3.10.0-1062.el7.x86_64
- TCP network communication
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