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

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

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I am not able to reproduce with a current 19.07 snapshot (self-build, r11297-4465b44fc1).  I have been sending 32 iperf3 UDP flows with small packets + iperf3 TCP flows through the router, and also sending UDP packets from the router itself with "dd if=/dev/zero bs=4k |nc -u ". No crash in 24h, with and without software flow offloading.

So, either:

1) it has been fixed (but I don't see how, except maybe for a kernel bump)
2) it is hard to reproduce
3) it depends on build parameters
4) it depends on runtime parameters like VLAN configuration

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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=2628#comment9345

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