Re: Bug report for ahci-mvebu driver

Damien Le Moal
2023-02-08T23:00:47Z

On 2023/02/08 21:17, marius@psihoexpert.ro wrote:
> February 8, 2023 1:40 AM, "Damien Le Moal" <damien.lemoal@opensource.wdc.com> wrote:
>
>> On 2023/02/08 3:40, marius@psihoexpert.ro wrote:
>>
>>> [ 173.591831] ata2.15: Port Multiplier 1.2, 0x197b:0x0325 r193, 8 ports, feat 0xf/0x1f
>>> [ 173.600838] ahci-mvebu f10a8000.sata: FBS is enabled
>>> [ 173.605977] ata2.00: hard resetting link
>>> [ 173.937078] ata2.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>>> [ 173.943563] ata2.01: hard resetting link
>>> [ 174.277073] ata2.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>>> [ 174.283555] ata2.02: hard resetting link
>>> [ 174.617075] ata2.02: SATA link down (SStatus 0 SControl 300)
>>> [ 174.622787] ata2.03: hard resetting link
>>> [ 174.957074] ata2.03: SATA link down (SStatus 0 SControl 300)
>>> [ 174.962785] ata2.04: hard resetting link
>>> [ 175.297075] ata2.04: SATA link down (SStatus 0 SControl 300)
>>> [ 175.302784] ata2.05: hard resetting link
>>> [ 175.637072] ata2.05: SATA link down (SStatus 0 SControl 300)
>>> [ 175.642781] ata2.06: hard resetting link
>>> [ 175.977071] ata2.06: SATA link down (SStatus 0 SControl 300)
>>> [ 175.982781] ata2.07: hard resetting link
>>> [ 176.317063] ata2.07: SATA link down (SStatus 0 SControl 300)
>>
>> That is weird too. No point in repeatedly resetting if the link is up. So the
>> patch really screwed up something for 5.15.
>
> Nothing weird here. There is one reset for each logical port. Only two ports are used.

Ah! missed the port number changing :) You are right.

>
> I'm going to insert the debug messages in this kernel version too and test again.

Thanks. Did you test the other LTS 6.1 kernel too ? The patch was backported
there too.