Re: problem with dwmmc ? panic's on bad filesystem...

On 12 Mar 2021, at 12:01, Søren Schmidt wrote:

> On 12 Mar 2021, at 11.09, Emmanuel Vadot <[email protected]> 
> wrote:
>>
>> On Fri, 12 Mar 2021 09:47:40 +0100
>> Søren Schmidt <[email protected]> wrote:
>>
>>> On 11 Mar 2021, at 23.30, Jesper Schmitz Mouridsen <[email protected]> 
>>> wrote:
>>>>
>>>>
>>>> On 11.03.2021 21.29, Søren Schmidt wrote:
>>>>> Hi
>>>>>
>>>>> I have had this panic several times on rk3399 based systems when 
>>>>> the filesystem has gone bad (and just needs a fsck).
>>>>> It doesn?t happen on Marvell a3720, so its not arm64 specific, 
>>>>> more likely dwmmc specific or maybe the dma on the rk3399 ?
>>>>>
>>>>> 13-stable of today, but problem has been around for a long time..
>>>>>
>>>> <snip>
>>>>
>>>> Check under known issues https://wiki.freebsd.org/arm/RockChip.
>>>>
>>>> Should be fixed in 
>>>> https://cgit.freebsd.org/src/commit/?id=8727c174b0fe44766bb7ea765dac6d5f82818103
>>>>
>>>> But perhaps it is not included in stable/13 or it is not totally 
>>>> fixed?
>>>
>>> That fix is indeed in stable13, so it looks like its not really 
>>> fixed, or this is another problem...
>>>
>>> --
>>> Søren Schmidt
>>> [email protected] / [email protected]
>>> "So much code to hack, so little time"
>>
>> Seems like it's the same issue.
>> Your hitting EFBIG from bus_dmamap_load.
>> Does that happens everytime ?
>
> Yes it does.
>
>> Does that happens if you disable journaling or softupdate ?
>
> Journalling seems to be what triggers this error.
>
> The last (error) request contains 0 segs and a non %blocksize length 
> if that helps.

This sounded familiar;  I am not sure what happened to the comments from 
  this:  https://reviews.freebsd.org/D26735


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