On 6/19/18 5:35 PM, Michael Ellerman wrote:
> Jens Axboe <axboe@xxxxxxxxx> writes:
>> On 6/19/18 1:29 AM, Michael Ellerman wrote:
>>> Jens Axboe <axboe@xxxxxxxxx> writes:
>>>> On 6/18/18 1:33 AM, Michael Ellerman wrote:
>>>>> Tejun Heo <tj@xxxxxxxxxx> writes:
>>>>> ...
>>>>>> Jens Axboe (10):
>>>>>> libata: introduce notion of separate hardware tags
>>>>>> libata: convert core and drivers to ->hw_tag usage
>>>>>> libata: bump ->qc_active to a 64-bit type
>>>>>> libata: use ata_tag_internal() consistently
>>>>>> libata: remove assumption that ATA_MAX_QUEUE - 1 is the max
>>>>>> sata_nv: set host can_queue count appropriately
>>>>>> libata: add extra internal command
>>>>>
>>>>> Replying here because I can't find the original mail.
>>>>>
>>>>> The above commit is causing one of my machines to constantly spew ata
>>>>> messages on the console, according to bisect:
>>>>>
>>>>> # first bad commit: [28361c403683c2b00d4f5e76045f3ccd299bf99d] libata: add extra internal command
>>>>>
>>>>> To get it to boot I have to also apply:
>>>>>
>>>>> 88e10092f6a6 ("sata_fsl: use the right type for tag bitshift")
>>>>>
>>>>>
>>>>> The system boots OK and seems fine, except that it's just printing
>>>>> multiple of these per second:
>>>>>
>>>>> ata2: Signature Update detected @ 0 msecs
>>>>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>>>>> ata2.00: configured for UDMA/100
>>>>> ata2: Signature Update detected @ 0 msecs
>>>>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>>>>> ata2.00: configured for UDMA/100
>>>>> ata2: Signature Update detected @ 0 msecs
>>>>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>>>>> ata2.00: configured for UDMA/100
>>>>> ata2: Signature Update detected @ 0 msecs
>>>>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
>>>>> ata2.00: configured for UDMA/100
>>>>> ata2: Signature Update detected @ 0 msecs
> ...
>>
>> Actually, just try this one on top of current -git.
>
> Yep that fixes it.
>
> No more message spam, and when I try to mount sr0 it says "no medium".
>
> I'll have to go into the office to actually put a disc in the drive
> to check it's really working, but it seems likely.
>
> Thanks for debugging it, here's a tested-by if you like:
>
> Tested-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Thanks, but I packaged it a little differently, see the other
series I CC'ed you on. It'll work the same, though. It's in Tejun's
tree now, so should end up with Linus some time this week I think.
Thanks for reporting and testing the fix!
--
Jens Axboe
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