Comment 257 for bug 1690085

(In reply to Yibin Lin from comment #171)
> Just would like to report that I have almost exactly the same problem (log
> shows "soft lockup - CPU#0 stuck for 22s!"), with TP-Link TL-WDN4800 WiFi
> adapter. Apparently someone has exactly the same issue with me at
> https://forum.level1techs.com/t/solved-linux-is-unstable-ever-since-i-
> upgraded-to-ryzen/117541/152 .
>
> Not sure if I have other same components with the OP in the level1techs
> forum. But for me the soft lockup definitely comes from the WiFi driver
> process (it mentions about ath9k_hw_wait, which is the WiFi driver in kernel
> I think).
>
> It seems to me that TP-Link TL-WDN4800, with a recent kernel (I tried 4.10,
> 4.11, 4.13) can reliably re-produce the soft lockup issue within an hour in
> Ubuntu 16.04. (Of course you will need to turn on WiFi)
>
> I have given my Ryzen CPU to a friend who is a windows user. But I kept a
> copy of the log - let me know if you guys need me to upload it.

Some additional information: I tried disabling C6 and with the WiFi card it still freezes (that's why I gave away my Ryzen). I have Ryzen 5 1600, EVGA 550 G3 PSU, Asus ROG Strix B350-f motherboard.