Bug 62171

Summary:	Kernel Crash In local_bh_enable in case of Vlan Tagged ICMP Packets
Product:	Networking	Reporter:	Gautam Acharya (gautam06acharya)
Component:	Other	Assignee:	Stephen Hemminger (stephen)
Status:	CLOSED WILL_NOT_FIX
Severity:	high	CC:	alan, gautam06acharya
Priority:	P1
Hardware:	Mips64
OS:	Linux
Kernel Version:	Linux 2.6.27.18	Subsystem:
Regression:	No	Bisected commit-id:

Description Gautam Acharya 2013-09-26 13:22:42 UTC

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

Comment 1 Alan 2013-11-04 11:50:06 UTC

Obsolete lermel