[FS#2628] Kernel warning / crash on ramips: eth0 (mtk_soc_eth): transmit queue 0 timed out

OpenWrt Bugs openwrt-bugs at lists.openwrt.org
Sun Feb 28 21:59:49 EST 2021


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FS#2628 - Kernel warning / crash on ramips: eth0 (mtk_soc_eth): transmit queue 0 timed out
User who did this - Nigel Reed (nelgin)

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I'm using a Netgear R6220 router and having the same issues.

I was using a snapshot from probably back in April last year and everything was working fine. I decided to experiment with i2pd, unfortunately my file system was rendered read-only due to filling up. I decided I was going to do 2 things.

1. Upgraded to the latest 19.07.7 
2. extended the filesystem to a USB stick following the instructions at: https://openwrt.org/docs/guide-user/additional-software/extroot_configuration

[code]
[Sun Feb 28 13:38:23 2021] ------------[ cut here ]------------
[Sun Feb 28 13:38:23 2021] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:320 0x8038d700
[Sun Feb 28 13:38:23 2021] NETDEV WATCHDOG: eth0 (mtk_soc_eth): transmit queue 0 timed out
[Sun Feb 28 13:38:23 2021] Modules linked in: pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 mt76x2e mt76x2_common mt76x02_lib mt7603e mt76 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_FLOWOFFLOAD xt_CT wireguard slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbport xt_set ip_set_list_set ip_set_hash_netportnet ip_set_hash_netport ip_set_hash_netnet ip_set_hash_netiface ip_set_hash_net ip_set_hash_mac ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport
[Sun Feb 28 13:38:23 2021]  ip_set_hash_ipmark ip_set_hash_ip ip_set_bitmap_port ip_set_bitmap_ipmac ip_set_bitmap_ip ip_set nfnetlink nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ehci_platform ip6_gre ip_gre gre ehci_hcd ip6_udp_tunnel udp_tunnel sit ip6_tunnel tunnel6 tunnel4 ip_tunnel usb_storage uhci_hcd ohci_platform ohci_hcd sd_mod scsi_mod ext4 mbcache jbd2 crc32c_generic leds_gpio xhci_plat_hcd xhci_pci xhci_mtk xhci_hcd gpio_button_hotplug usbcore nls_base usb_common
[Sun Feb 28 13:38:23 2021] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.221 #0
[Sun Feb 28 13:38:23 2021] Stack : 00000000 00000000 00000000 87f77540 00000000 00000000 00000000 00000000
[Sun Feb 28 13:38:24 2021]         00000000 00000000 00000000 00000000 00000000 00000001 87c09d60 5326163c
[Sun Feb 28 13:38:24 2021]         87c09df8 00000000 00000000 000075e8 00000038 8049e2b8 00000008 00000000
[Sun Feb 28 13:38:24 2021]         00000000 80550000 000f0274 00000000 87c09d40 00000000 00000000 8050d500
[Sun Feb 28 13:38:24 2021]         8038d700 00000140 00000000 87f77540 00000000 802ae4c0 00000000 806b0000
[Sun Feb 28 13:38:24 2021]         ...
[Sun Feb 28 13:38:24 2021] Call Trace:
[Sun Feb 28 13:38:24 2021] [] 0x8049e2b8
[Sun Feb 28 13:38:24 2021] [] 0x8038d700
[Sun Feb 28 13:38:24 2021] [] 0x802ae4c0
[Sun Feb 28 13:38:24 2021] [] 0x8000c1a0
[Sun Feb 28 13:38:24 2021] [] 0x8000c1a8
[Sun Feb 28 13:38:24 2021] [] 0x804870f4
[Sun Feb 28 13:38:24 2021] [] 0x80071e00
[Sun Feb 28 13:38:24 2021] [] 0x8002e798
[Sun Feb 28 13:38:24 2021] [] 0x8038d700
[Sun Feb 28 13:38:24 2021] [] 0x8002e820
[Sun Feb 28 13:38:24 2021] [] 0x86d20104 [mt76x02_lib at 86d20000+0x9760]
[Sun Feb 28 13:38:24 2021] [] 0x8038d700
[Sun Feb 28 13:38:24 2021] [] 0x8038d554
[Sun Feb 28 13:38:24 2021] [] 0x80088948
[Sun Feb 28 13:38:24 2021] [] 0x8035d6bc
[Sun Feb 28 13:38:24 2021] [] 0x80088c04
[Sun Feb 28 13:38:24 2021] [] 0x800794a8
[Sun Feb 28 13:38:24 2021] [] 0x804a50b8
[Sun Feb 28 13:38:24 2021] [] 0x80033164
[Sun Feb 28 13:38:24 2021] [] 0x80050818
[Sun Feb 28 13:38:24 2021] [] 0x8025b710
[Sun Feb 28 13:38:24 2021] [] 0x80007488

[Sun Feb 28 13:38:24 2021] ---[ end trace edf46818e20cf603 ]---
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet eth0: transmit timed out
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet eth0: dma_cfg:80000065
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet eth0: tx_ring=0, base=06b70000, max=0, ctx=396, dtx=396, fdx=395, next=396
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet eth0: rx_ring=0, base=05f10000, max=0, calc=296, drx=373
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet: 0x100 = 0x6060000c, 0x10c = 0x80818
[Sun Feb 28 13:38:24 2021] mtk_soc_eth 1e100000.ethernet: PPE started
[/code]


The router seems to lock up overnight when it's not being used as much but it's random.


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https://bugs.openwrt.org/index.php?do=details&task_id=2628#comment9429

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