#18922: eth1 (ag71xx): transmit queue 0 timed out
------------------------+----------------------------------
Reporter: fpv2000@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Chaos Calmer (trunk)
Component: kernel | Version: Trunk
Resolution: | Keywords:
------------------------+----------------------------------
Comment (by psyke83):
I'm having the same problem with my TP Link-WL842N, r45922.
{{{
[35974.010000] ------------[ cut here ]------------
[35974.010000] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:303
dev_watchdog+0x1d8/0x25c()
[35974.020000] NETDEV WATCHDOG: eth1 (ag71xx): transmit queue 0 timed out
[35974.020000] Modules linked in: ifb 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_REJECT ipt_MASQUERADE cfg80211 xt_time
xt_tcpudp xt_tcpmss xt_statistic xt_state xt_recent xt_nat xt_multiport
xt_mark xt_mac xt_limit xt_length xt_id xt_hl xt_helper xt_ecn xt_dscp
xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS
xt_REDIRECT xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY slhc nf_reject_ipv4
nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat nf_log_ipv4 nf_defrag_ipv6
nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_ftp iptable_raw
iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt compat fuse
act_connmark nf_conntrack act_skbedit act_mirred em_u32 cls_u32
cls_tcindex cls_flow cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev
ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw
ip6table_mangle ip6table_filter ip6_tables x_tables ipv6 arc4
crypto_blkcipher usb_storage sd_mod scsi_mod ext4 jbd2 mbcache crc16
crypto_hash ohci_platform ohci_hcd ehci_platform ehci_hcd
gpio_button_hotplug usbcore nls_base usb_common [last unloaded: ifb]
[35974.130000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.18.14 #1
[35974.130000] Stack : 00000000 00000000 00000000 00000000 803e4272
00000032 00000000 80262490
[35974.130000] 00000001 00000029 8032bbcc 80384ba3 00000000 803e349c
80384ed8 00000029
[35974.130000] 803e38e0 00000001 00000004 800a3720 00000003 800803d0
0000012f 00000029
[35974.130000] 8032f1d8 8037fc6c 00000000 00000000 00000000 00000000
00000000 00000000
[35974.130000] 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[35974.130000] ...
[35974.170000] Call Trace:
[35974.170000] [<80071058>] show_stack+0x48/0x70
[35974.180000] [<800804d8>] warn_slowpath_common+0x84/0xb4
[35974.180000] [<80080534>] warn_slowpath_fmt+0x2c/0x38
[35974.190000] [<80262490>] dev_watchdog+0x1d8/0x25c
[35974.190000] [<800ab19c>] call_timer_fn.isra.38+0x24/0x84
[35974.200000] [<800ab9b4>] run_timer_softirq+0x1bc/0x1f8
[35974.200000] [<800829d8>] __do_softirq+0xf8/0x230
[35974.210000] [<80082d3c>] irq_exit+0x54/0x70
[35974.210000] [<80060830>] ret_from_irq+0x0/0x4
[35974.220000] [<80060a80>] __r4k_wait+0x20/0x40
[35974.220000] [<8009f6b8>] cpu_startup_entry+0xf0/0x13c
[35974.220000] [<8039eb64>] start_kernel+0x434/0x44c
[35974.230000]
[35974.230000] ---[ end trace e8e90892f46c2d1e ]---
}}}
This happens every 1-2 days, and the internet is unreachable unless I
reboot the router or restart networking. The error doesn't affect wifi
connectivity to the router, so SSH is always available. Due to the
frequency of the problem I was forced to write a script to automatically
recover connectivity: https://gist.github.com/psyke83/a2476609557f58ad946d
--
Ticket URL: <https://dev.openwrt.org/ticket/18922#comment:1>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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