[Freifunk Franken Firmware 0000145]: Frequent WAN disconnects on ath79 platform

[FFF Bugtracker]

Der folgende Eintrag wurde erfasst. 
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https://mantis.freifunk-franken.de/view.php?id=145 
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Berichtet von:              Adrian Schmutzler
Zugewiesen an:              Adrian Schmutzler
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Projekt:                    Freifunk Franken Firmware
Eintrag-ID:                 145
Kategorie:                  General
Reproduzierbarkeit:         zufällig
Schweregrad:                schwerer Fehler
Priorität:                  hoch
Status:                     zugewiesen
Zielversion:                next-stable
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Erstellt am:                2020-09-30 13:29 CEST
Zuletzt geändert:           2020-09-30 13:29 CEST
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Zusammenfassung:            Frequent WAN disconnects on ath79 platform
Beschreibung: 
The ar8216 switch driver has a problem that leads to occational (and sometimes
frequent) WAN dis- and reconnects as well as link speed drops.
This only occurs with a subset of devices from ath79 target, ar71xx (i.e. last
released stable firmware) is fine:

[18580.106696] eth0: link up (100Mbps/Full duplex)
[19014.825937] eth0: link up (10Mbps/Half duplex)
[19055.384105] eth0: link up (100Mbps/Full duplex)
[21927.853366] eth0: link up (10Mbps/Half duplex)
[22003.771999] eth0: link up (100Mbps/Full duplex)
[23743.685216] eth0: link down
[23744.723679] eth0: link up (100Mbps/Full duplex)
[23756.242265] eth0: link down
[23757.283590] eth0: link up (100Mbps/Full duplex)
[24075.522397] eth0: link up (10Mbps/Half duplex)
[24090.081802] eth0: link up (100Mbps/Full duplex)
[24100.481809] eth0: link up (10Mbps/Half duplex)
[24166.001178] eth0: link up (100Mbps/Full duplex)
[24500.880989] eth0: link up (10Mbps/Half duplex)

In production, this may lead to an installation becoming inaccessible for days.

Further information: https://bugs.openwrt.org/index.php?do=details&task_id=2216

The problem has recently been "fixed" in OpenWrt master:
https://github.com/openwrt/openwrt/commit/86fdc8abed5992a74078b000b5ff9da723b6f46b

I have cherry-picked this into 19.07 and just sent a patch to the franken-dev
list.
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Eintrags-Historie 
Änderungsdatum   Benutzername   Feld                     Änderung             
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2020-09-30 13:29 Adrian SchmutzlerNeuer Eintrag                                
2020-09-30 13:29 Adrian SchmutzlerStatus                   neu => zugewiesen   
2020-09-30 13:29 Adrian SchmutzlerBearbeitung durch         => Adrian Schmutzler
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