[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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Good catch, well done!

I had a look and this driver was removed upstream: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bd31342f0046077e92062a6c09eae6c8f1676916

Upstream is using the generic mediatek driver, and this is also what is used in OpenWrt master with kernel 5.4.  The generic driver does enable TSO, so TSO is likely a symptom and not the root cause.

Have you noticed any performance regression when disabling TSO?  Did you try to reproduce the issue on latest OpenWrt master?
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https://bugs.openwrt.org/index.php?do=details&task_id=2628#comment9192

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