I have an old router (Netgear Dgn3500) that has errors displayed in dmesg and / or logread (only when there is traffic from wireless to wan interface):
kern.err kernel: ltq_etop 1e180000.etop eth0: tx ring full
logread | grep "tx ring full" | wc -l
201
uptime 17:34:27 up 1 day, 6:20, load average: 0.04, 0.01, 0.00
Openwrt version: OpenWrt 19.07.5
I would like to understand what they are due to as I do not seem to require anything exceptional from the router in question.
I know that it is an obsolete product and that there are various alternatives on the market but I would like to try to understand the errors
thanks to anyone who wants to answer me