#18616: NETDEV WATCHDOG: eth0 (ag71xx): transmit queue 0 timed out
-----------------------+----------------------------------
Reporter: openwrt@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Chaos Calmer (trunk)
Component: kernel | Version: Trunk
Keywords: |
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Hi,
Since '''kernel 3.14''' is used in ar71xx I get this error with a NanoBeam
M5 16 (hardware-compatible with NanoStation Loco M5 XW) when the device
boots with the Ethernet cable connected:
{{{
[ 44.050000] ------------[ cut here ]------------
[ 44.050000] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264
dev_watchdog+0x1e8/0x26c()
[ 44.060000] NETDEV WATCHDOG: eth0 (ag71xx): transmit queue 0 timed out
[ 44.070000] Modules linked in: ath9k ath9k_common pppoe ppp_async
iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6
nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp
xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack
xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp
nf_nat nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_irc
nf_conntrack_ftp nf_conntrack iptable_raw iptable_mangle iptable_filter
ipt_REJECT ip_tables crc_ccitt compat ip6t_REJECT ip6table_raw
ip6table_mangle ip6table_filter ip6_tables x_tables ipv6 arc4
crypto_blkcipher ohci_platform ohci_hcd ehci_platform ehci_hcd
gpio_button_hotplug usbcore nls_base usb_common
[ 44.130000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.14.26 #1
[ 44.140000] Stack : 00000006 00000000 00000000 00000000 00000000
00000000 803ac8ce 00000032
[ 44.140000] 80341408 00000005 802f70f4 8034182f 00000000 803a3b5c
80341408 00000005
[ 44.140000] 803ac244 00000001 00000004 8029a1d0 00000003 801ff138
00000108 00000005
[ 44.140000] 802fa2b8 80331c74 00000000 00000000 00000000 00000000
00000000 00000000
[ 44.140000] 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 44.140000] ...
[ 44.170000] Call Trace:
[ 44.180000] [<80241100>] show_stack+0x48/0x70
[ 44.180000] [<802aa790>] warn_slowpath_common+0x84/0xb4
[ 44.190000] [<802aa7ec>] warn_slowpath_fmt+0x2c/0x38
[ 44.190000] [<8011102c>] dev_watchdog+0x1e8/0x26c
[ 44.200000] [<800ee5f8>] call_timer_fn.isra.38+0x24/0x84
[ 44.200000] [<8022a250>] run_timer_softirq+0x17c/0x1bc
[ 44.210000] [<8008f5c8>] __do_softirq+0xf8/0x228
[ 44.210000] [<801864f0>] irq_exit+0x54/0x70
[ 44.210000] [<80060830>] ret_from_irq+0x0/0x4
[ 44.220000] [<80210584>] r4k_wait_irqoff+0x18/0x1c
[ 44.220000] [<80100584>] cpu_startup_entry+0xa4/0x104
[ 44.230000] [<8034e94c>] start_kernel+0x3c8/0x3e0
[ 44.230000]
[ 44.240000] ---[ end trace 2b19aa29f924c27c ]---
}}}
After that, there is no link on the Ethernet port anymore. However, if I
boot the device without the Ethernet cable connected and plug it later,
the Ethernet port works perfectly and the error does not appear at all.
--
Ticket URL: <https://dev.openwrt.org/ticket/18616>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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