[FS#3344] After a while, the network port falls off (eth0: transmit timed out, mt7620, 19.07.04)

Thu Sep 17 10:57:52 EDT 2020

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A new Flyspray task has been opened.  Details are below. 

User who did this - Денис Котляров (denisandroid) 

Attached to Project - OpenWrt/LEDE Project
Summary - After a while, the network port falls off (eth0: transmit timed out, mt7620, 19.07.04)
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - openwrt-19.07
Due in Version - Undecided
Due Date - Undecided
Details - After a while, the network port accidentally falls off.

Iron: mt7620, wt3020, 4.14.195 (18384755d38fc43c447d83d4a3e07054), 19.07.03 - 19.07.04 Release (active Release 19.07.04, r11208-ce6496d796).

Dmesg: 
[   90.986725] ------------[ cut here ]------------
[   90.995945] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:320 0x802c39c0
[   91.010007] NETDEV WATCHDOG: eth0 (mtk_soc_eth): transmit queue 0 timed out
[   91.023880] Modules linked in: rt2800soc rt2800mmio rt2800lib pppoe ppp_async rt2x00soc rt2x00mmio rt2x00lib pppox ppp_generic nf_conntrack_ipv6 mac80211 lzo lz4 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 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 lzo_decompress lzo_compress lz4_decompress lz4_compress iptable_mangle iptable_filter ip_tables crc_ccitt compat nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 zram zsmalloc crypto_acompress leds_gpio
[   91.166089]  ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   91.185369] CPU: 0 PID: 0 Comm: swapper Not tainted 4.14.195 #0
[   91.197166] Stack : 8046dee0 80054358 80480000 8042d258 00000000 00000000 00000000 00000000
[   91.213831]         00000000 00000000 00000000 00000000 00000000 00000001 83807de0 53261622
[   91.230494]         83807e78 00000000 00000000 00003d60 00000038 803ccd58 00000008 00000000
[   91.247161]         00000000 80460000 0002d419 00000000 83807dc0 00000000 00000000 8042710c
[   91.263824]         802c39c0 00000140 8046df34 8046def4 00000002 80213fc0 00000000 805b0000
[   91.280488]         ...
[   91.285351] Call Trace:
[   91.285362] [] 0x80054358
[   91.297207] [] 0x803ccd58
[   91.304148] [] 0x802c39c0
[   91.311097] [] 0x80213fc0
[   91.318049] [] 0x8000aa50
[   91.324986] [] 0x8000aa58
[   91.331940] [] 0x80026480
[   91.338886] [] 0x802c39c0
[   91.345830] [] 0x80026508
[   91.352792] [] 0x802c39c0
[   91.359744] [] 0x802c385c
[   91.366680] [] 0x8005ffcc
[   91.373629] [] 0x800012fc
[   91.380590] [] 0x800601a0
[   91.387547] [] 0x833b5bec [mac80211 at 83380000+0x6bee0]
[   91.399350] [] 0x803d2808
[   91.406289] [] 0x8005a554
[   91.413238] [] 0x80055ab0
[   91.420186] [] 0x80005e90

[   91.430089] ---[ end trace 145bf673f7807cad ]---
[   91.439297] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[   91.451622] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[   91.463608] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02c24000, max=1024, ctx=479, dtx=479, fdx=425, next=479
[   91.485112] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=02e10000, max=1024, calc=8, drx=13
[   93.401723] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[   93.414065] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[   93.426057] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01dc8000, max=1024, ctx=188, dtx=188, fdx=144, next=188
[   93.447571] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01dcc000, max=1024, calc=397, drx=399
[   98.019691] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[   98.032033] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[   98.044031] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01c20000, max=1024, ctx=211, dtx=211, fdx=80, next=211
[   98.065364] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01de0000, max=1024, calc=220, drx=221
[  101.428123] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  101.440467] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  101.452464] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02e10000, max=1024, ctx=56, dtx=56, fdx=47, next=56
[  101.473277] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01eb0000, max=1024, calc=68, drx=69
[  105.047865] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  105.060207] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  105.072203] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02e10000, max=1024, ctx=970, dtx=970, fdx=934, next=970
[  105.093712] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01de0000, max=1024, calc=926, drx=927
[  108.488211] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  108.500553] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  108.512547] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01eb8000, max=1024, ctx=193, dtx=193, fdx=112, next=193
[  108.534053] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01c20000, max=1024, calc=286, drx=287
[  112.533355] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  112.545699] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  112.557696] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02e10000, max=1024, ctx=108, dtx=108, fdx=80, next=108
[  112.579028] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=02c6c000, max=1024, calc=277, drx=278
[  116.249644] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  116.261989] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  116.273985] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01eb8000, max=1024, ctx=79, dtx=79, fdx=32, next=79
[  116.294798] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01e04000, max=1024, calc=95, drx=96
[  178.106197] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  178.118539] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  178.130532] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01eb8000, max=1024, ctx=218, dtx=218, fdx=205, next=218
[  178.152045] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=02e10000, max=1024, calc=426, drx=434
[  806.854440] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  806.866785] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  806.878783] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01eb8000, max=1024, ctx=823, dtx=823, fdx=761, next=823
[  806.900289] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=01e04000, max=1024, calc=745, drx=746
[  810.310475] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
[  810.322817] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
[  810.334813] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=01eb8000, max=1024, ctx=199, dtx=199, fdx=176, next=199
[  810.356320] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=02e10000, max=1024, calc=431, drx=432
[  814.112565] mtk_soc_eth 10100000.ethernet eth0: transmit timed out

[    0.745106] mtk_soc_eth 10100000.ethernet eth0 (uninitialized): port 0 link up (100Mbps/Full duplex)
[    0.763299] mtk_soc_eth 10100000.ethernet eth0 (uninitialized): port 4 link up (100Mbps/Full duplex)
[    0.781711] mtk_soc_eth 10100000.ethernet: loaded mt7620 driver
[    0.794161] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
[    0.811145] rt2880_wdt 10000120.watchdog: Initialized

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3344

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