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Re: kern/52818: The wm driver stops working after large traffic

On Mon, 18 Dec 2017 09:14:48 -0800 (PST)
Hisashi T Fujinaka <> wrote:

> ASPM needs to be negotiated on the PCIe link and really should be turned
> off in the BIOS.

XCY mini PC's system firmware have a bug that it cannot handle PCIe ASPM.
We should disable PCIe ASPM to use the such box.
I think most end user cannot fix the behavior of the system firmware.

> For the workaround I would suggest that you don't differentiate between
> the 82583 and the 82574 (do the same thing for both).

I read the specification update of the 82573 and 82574.
I'll post the candidate patch later...

Shinichi Doyashiki <>

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