Re: Linux crash when using FTDI FT232R USB to serial converter on AMD boards.

StarostaCZ@gmail.com
2019-05-15T07:56:24Z

Hello,
can I still help with this problem? It's very important for us. Thank you.

starosta

Dne 6.5.2019 v 9:10 StarostaCZ@gmail.com napsal(a):
> New test on kernel Linux version 5.1.0-050100-generic. Same problem,
> system crash after a few seconds.
> Full kern.log: https://paste.ee/p/EmLsw
> I can do access to my pc through SSH if useful.
>
> starosta
>
> Dne 3.5.2019 v 17:37 Joerg Roedel napsal(a):
>> On Mon, Apr 29, 2019 at 11:48:47AM +0200, Johan Hovold wrote:
>>> So this is a debian 4.18 kernel seemingly crashing due to a xhci or
>>> iommu issue.
>>>
>>> Can you reproduce this on a mainline kernel?
>>>
>>> If so, please post the corresponding logs to the lists and CC the xhci
>>> and iommu maintainers (added to CC).
>> Your kernel is probably missing this upstream fix:
>>
>>     4e50ce03976f iommu/amd: fix sg->dma_address for sg->offset bigger
>> than PAGE_SIZE
>>
>> Regards,
>>
>>     Joerg
>>