@Syphymo: What do you mean with “disturbed”? If you reinsert the card after it is not seen after a reboot, is the data still corect on the card? Did you once enable the Debug Output and check if there is any difference it it works and if it does not work? Probably the controller of the card is in a locked state if the board gets powered down and needs to be reset by powering it off. If this is the case you probably never would see the issue if you make a full power off and not only a reset?
@Saphymo: I think we have to further understand how this issue is triggered. Is there a way how to reliable reproduce this issue? Could you give us a guide how we can get into the same situation on our baseboard and the standard image?
@Saphymo: The Community Issue 4244 as similar. We have been able to reproduce the issue of the customer but on image 1.4. The description of the issue is slightly different. On image 2.0 beta 3 or beta 2, we have not been able to reproduce it any longer. Also the customer confirmed his issue is fixed with 2.0 beta 3 (post of the 29th of November 2016). We currently do not know what could have fixed the issue and need to do some further investigations. If not already done, would you mind test with Image 2.0 beta 3 once? If you don’t see the issue any longer, this could be the same issue as reported in 4244. We on our side will do some more investigation in order to find out what could actually could have fixed this issue (MS Updates, chnages on our side, …).
If I remember right, this issue is still not reproducible easily on your side?
We are currently investigating a similar issue. Also we have not seen it on 2.0 beta 1 images an later, we don’t think the issue we are investigating is actually solved. It is hard to say until when we have a patch for this issue, I guess it will be in the following two weeks. I will send you an updated driver once is ready, so you can test with that.
@Saphymo: Generally no settings are needed for SDIO. We once have seen that there is an issue with an industrial brand card with a timeout (industrial grade cards may be do deeper tests of the flash health when starting up). To fix that issue we introduced a key “PowerUpDelay”. You find the details here.
In this issue you have also reported issues with data corruptions. This will not solve this issue but only the not mounting issue.