Hi Jan,

Am 22.06.19 um 09:04 schrieb Jan Kratochvil:
> Hello,
>
> further discussion with Peter Robinson was at:
>       https://bugzilla.redhat.com/show_bug.cgi?id=1607872#c11
>
>
> On Fri, 21 Jun 2019 13:55:39 +0200, Stefan Wahren wrote:
>> I've seen a lot of reports about this issue. Unfortunately this was only
>> reproducible with specific MicroSD cards.
>>
>> Are you able to reproduce this issue with multiple MicroSDs?
>> What type of MicroSD produce this issue?
> From the Bug:
> # that does not matter, the important part is that it works with Raspbian
> # while it does not with Fedora.
it does matter, because there is zero free documentation about the
sdhost controller on the BCM2835. So everything depends on helpful users
and a lots of testing. Raspbian uses their downstream sdhost driver
bcm2835-sdhost, while Fedora the mainline driver bcm2835. This one was
derived from the downstream one around kernel 4.12. Thanks for letting
me know it's a Kingston card. I've a few Kingston cards and never had a
problem. So i wouldn't think there is a general issue with them.
>
>
> On Fri, 21 Jun 2019 15:26:11 +0200, Peter Robinson wrote:
>>> I see nowhere on this list mentioned this problem, really nobody is using
>>> MicroSD directly?
>> I primarily use mSD cards directly, I currently have 12 RPi of
>> different models from the RPi2, original 3 (a couple of gens), the
>> 3B+, 3A+ and even a CM3 based device running various Fedora images on
>> both aarch64 and ARMv7 with no issues.
> One should also use more wide range of MicroSD cards.
>
> From the Bug:
> # I have verified now that it is a regression
> # since (as this kernel boots fine directly from my Kingston MicroSD):
> #   Fedora-Server-29-1.2.aarch64.raw.xz = kernel-4.18.16-300.fc29.aarch64
Thanks this is very helpful. Could you please test Fedora kernel 4.19
and 5.0 for aarch64? This would narrow down the issue much more.
>
>
>> Also it's possible under powered PSUs might cause something like this,
>> I've had reports of issues with SD cards that have gone away with
>> different PSUs, what is the rating of your PSU?
> From the Bug:
> # Original Raspberry PSU 2.5A

I don't think this is power related.

Thanks
Stefan

>
>
> Regards,
> Jan Kratochvil
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