#6754: Can crash wan port (eth1) with ping flood (Atheros AG71xx)
---------------------------------------------+-----------------------------
Reporter: monte <peabody.bb4wtmzci8qj@…> | Owner: juhosg
Type: defect | Status: reopened
Priority: normal | Milestone: Barrier Breaker
Component: kernel | 14.07
Resolution: | Version: Trunk
| Keywords:
---------------------------------------------+-----------------------------
Comment (by weeds):
I am using the Barrier Breaker latest code, compile for TL-WR841N v8, and
still I got below message which caused us can not access the Internet,
this happened on 10M Hub which TL-WR841N v8 wan port plugged in. With some
downloading something it just happen, I don't think we should overlook it
to the next milestone to fix.
[ 1015.010000] ------------[ cut here ]------------
[ 1015.010000] WARNING: at net/sched/sch_generic.c:255
dev_watchdog+0x1e8/0x26c()
[ 1015.020000] NETDEV WATCHDOG: eth0 (ag71xx): transmit queue 0 timed out
[ 1015.020000] Modules linked in: ath9k ath9k_common pppoe ppp_async
iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4
mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_tcpmss xt_string
xt_statistic xt_state xt_recent xt_quota xt_pkttype xt_owner xt_nat
xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_ecn
xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment
xt_addrtype xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_DSCP xt_CT
xt_CLASSIFY ts_kmp ts_fsm ts_bm slhc nf_nat_irc nf_nat_ftp nf_nat
nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw
iptable_mangle iptable_filter ipt_REJECT ipt_ECN ip_tables crc_ccitt
compat sch_teql sch_tbf sch_sfq sch_red sch_prio sch_htb sch_gred
sch_dsmark sch_codel em_text em_nbyte em_meta em_cmp cls_basic act_police
act_ipt act_connmark act_skbedit act_mirred em_u32 cls_u32 cls_tcindex
cls_flow cls_route cls_fw sch_hfsc sch_ingress ip6t_REJECT ip6table_raw
ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6
nf_conntrack nf_defrag_ipv6 ifb ipv6 arc4 crypto_blkcipher
gpio_button_hotplug
[ 1015.130000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.49 #2
[ 1015.130000] Stack : 00000000 00000000 00000000 00000000 80372eba
00000032 80313498 0000004d
[ 1015.130000] 802c4f58 8031321b 00000000 80372664 80313498 0000004d
8039383c 00000001
[ 1015.130000] 00000004 80079040 00000003 80076ac0 802ed7fc 0000004d
802c6818 8030dc74
[ 1015.130000] 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 1015.130000] 00000000 00000000 00000000 00000000 00000000 00000000
00000000 8030dc00
[ 1015.130000] ...
[ 1015.170000] Call Trace:
[ 1015.170000] [<8006e294>] show_stack+0x48/0x70
[ 1015.180000] [<80076bbc>] warn_slowpath_common+0x78/0xa8
[ 1015.180000] [<80076c18>] warn_slowpath_fmt+0x2c/0x38
[ 1015.190000] [<8021a240>] dev_watchdog+0x1e8/0x26c
[ 1015.190000] [<800828d8>] call_timer_fn.isra.38+0x24/0x84
[ 1015.200000] [<80082ab4>] run_timer_softirq+0x17c/0x1bc
[ 1015.200000] [<8007d974>] __do_softirq+0xd0/0x1bc
[ 1015.210000] [<8007db00>] do_softirq+0x48/0x68
[ 1015.210000] [<8007dd34>] irq_exit+0x54/0x70
[ 1015.220000] [<80060830>] ret_from_irq+0x0/0x4
[ 1015.220000] [<8006b8e0>] r4k_wait_irqoff+0x18/0x1c
[ 1015.230000] [<8009efe8>] cpu_startup_entry+0xa4/0x104
[ 1015.230000] [<80329910>] start_kernel+0x38c/0x3a4
[ 1015.240000]
[ 1015.240000] ---[ end trace 9a4953f252a32df0 ]---
[ 1015.240000] eth0: tx timeout
[ 1015.250000] eth0: link down
[ 1015.260000] eth0: link up (10Mbps/Half duplex)
[ 1021.020000] eth0: tx timeout
[ 1021.020000] eth0: link down
[ 1021.270000] eth0: link up (10Mbps/Half duplex)
[ 1027.020000] eth0: tx timeout
[ 1027.020000] eth0: link down
[ 1027.270000] eth0: link up (10Mbps/Half duplex)
[ 1033.020000] eth0: tx timeout
[ 1033.020000] eth0: link down
[ 1033.270000] eth0: link up (10Mbps/Half duplex)
[ 1039.020000] eth0: tx timeout
[ 1039.020000] eth0: link down
[ 1039.270000] eth0: link up (10Mbps/Half duplex)
[ 1045.020000] eth0: tx timeout
[ 1045.020000] eth0: link down
[ 1045.270000] eth0: link up (10Mbps/Half duplex)
[ 1051.020000] eth0: tx timeout
[ 1051.020000] eth0: link down
[ 1051.270000] eth0: link up (10Mbps/Half duplex)
[ 1057.020000] eth0: tx timeout
[ 1057.020000] eth0: link down
[ 1057.270000] eth0: link up (10Mbps/Half duplex)
[ 1063.020000] eth0: tx timeout
[ 1063.020000] eth0: link down
[ 1063.270000] eth0: link up (10Mbps/Half duplex)
[ 1069.020000] eth0: tx timeout
[ 1069.020000] eth0: link down
[ 1069.270000] eth0: link up (10Mbps/Half duplex)
[ 1075.020000] eth0: tx timeout
[ 1075.020000] eth0: link down
[ 1075.270000] eth0: link up (10Mbps/Half duplex)
[ 1081.020000] eth0: tx timeout
[ 1081.020000] eth0: link down
[ 1081.270000] eth0: link up (10Mbps/Half duplex)
[ 1087.020000] eth0: tx timeout
[ 1087.020000] eth0: link down
[ 1087.270000] eth0: link up (10Mbps/Half duplex)
[ 1093.020000] eth0: tx timeout
[ 1093.020000] eth0: link down
[ 1093.270000] eth0: link up (10Mbps/Half duplex)
[ 1099.020000] eth0: tx timeout
[ 1099.020000] eth0: link down
[ 1099.270000] eth0: link up (10Mbps/Half duplex)
[ 1105.020000] eth0: tx timeout
[ 1105.020000] eth0: link down
[ 1105.270000] eth0: link up (10Mbps/Half duplex)
[ 1111.020000] eth0: tx timeout
[ 1111.020000] eth0: link down
[ 1111.270000] eth0: link up (10Mbps/Half duplex)
[ 1117.020000] eth0: tx timeout
[ 1117.020000] eth0: link down
[ 1117.270000] eth0: link up (10Mbps/Half duplex)
[ 1123.020000] eth0: tx timeout
[ 1123.020000] eth0: link down
[ 1123.270000] eth0: link up (10Mbps/Half duplex)
[ 1129.020000] eth0: tx timeout
[ 1129.020000] eth0: link down
[ 1129.270000] eth0: link up (10Mbps/Half duplex)
[ 1135.020000] eth0: tx timeout
[ 1135.020000] eth0: link down
[ 1135.270000] eth0: link up (10Mbps/Half duplex)
[ 1141.020000] eth0: tx timeout
[ 1141.020000] eth0: link down
[ 1141.270000] eth0: link up (10Mbps/Half duplex)
[ 1147.020000] eth0: tx timeout
[ 1147.020000] eth0: link down
[ 1147.270000] eth0: link up (10Mbps/Half duplex)
[ 1153.020000] eth0: tx timeout
[ 1153.020000] eth0: link down
[ 1153.270000] eth0: link up (10Mbps/Half duplex)
[ 1159.020000] eth0: tx timeout
[ 1159.020000] eth0: link down
[ 1159.270000] eth0: link up (10Mbps/Half duplex)
[ 1165.020000] eth0: tx timeout
[ 1165.020000] eth0: link down
[ 1165.270000] eth0: link up (10Mbps/Half duplex)
[ 1171.020000] eth0: tx timeout
[ 1171.020000] eth0: link down
[ 1171.270000] eth0: link up (10Mbps/Half duplex)
[ 1177.020000] eth0: tx timeout
[ 1177.020000] eth0: link down
[ 1177.270000] eth0: link up (10Mbps/Half duplex)
[ 1183.020000] eth0: tx timeout
[ 1183.020000] eth0: link down
[ 1183.270000] eth0: link up (10Mbps/Half duplex)
[ 1189.020000] eth0: tx timeout
[ 1189.020000] eth0: link down
[ 1189.270000] eth0: link up (10Mbps/Half duplex)
[ 1195.020000] eth0: tx timeout
[ 1195.020000] eth0: link down
[ 1195.270000] eth0: link up (10Mbps/Half duplex)
[ 1201.020000] eth0: tx timeout
[ 1201.020000] eth0: link down
.
--
Ticket URL: <https://dev.openwrt.org/ticket/6754#comment:39>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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