[PATCH 1/2] mmc: bcm2835: reset host on timeout

[Stefan Wahren]

Hi Michal,

[add Phil]

Am 14.02.2018 um 17:13 schrieb Michal Suchánek:
> On Wed, 14 Feb 2018 16:36:49 +0100
> Michal Suchánek <msuchanek at suse.de> wrote:
>
>> On Wed, 14 Feb 2018 15:58:31 +0100
>> Stefan Wahren <stefan.wahren at i2se.com> wrote:
>>
>>> Hi Michal,
>>>
>>> Am 14.02.2018 um 15:38 schrieb Michal Suchanek:  
>>>> The bcm2835 mmc host tends to lock up for unknown reason so reset
>>>> it on timeout. The upper mmc block layer tries retransimitting
>>>> with single blocks which tends to work out after a long wait.
>>>>
>>>> This is better than giving up and leaving the machine broken for
>>>> no obvious reason.    
>>> could you please provide more information about this issue (affected
>>> hardware, kernel config, version, dmesg, reproducible scenario)?
>>>   
> It tends to reproduce when upgrading a few packages with zypper and
> otherwise at random during system operation. It seems that for my card
> it worsens with age to some degree so perhaps it depends on the
> fragmentation of the internal card flash.
>
> Attaching dmesg and kernel config.

do you noticed this issue before 4.15-rc4?

Could you please test with 4.15 final again?

What kind of SD card (name) triggers the issue?

Thanks Stefan

>
> Thanks
>
> Michal