Up Squared on Linux - getting mmc error messages

Andy Carlson

I have an 8GB, 128GB N4200 Up Squared. I installed Fedora, with the 4.11 kernel. I have been getting a lot of timeout errors on the mmc. Here is an example:

[Sun Jun 11 21:26:31 2017] mmc0: Timeout waiting for hardware interrupt.
[Sun Jun 11 21:26:31 2017] sdhci: =========== REGISTER DUMP (mmc0)===========
[Sun Jun 11 21:26:31 2017] sdhci: Sys addr: 0x00000008 | Version: 0x00001002
[Sun Jun 11 21:26:31 2017] sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000008
[Sun Jun 11 21:26:31 2017] sdhci: Argument: 0x028a9988 | Trn mode: 0x0000003b
[Sun Jun 11 21:26:31 2017] sdhci: Present: 0x1fff0001 | Host ctl: 0x0000003d
[Sun Jun 11 21:26:31 2017] sdhci: Power: 0x0000000b | Blk gap: 0x00000080
[Sun Jun 11 21:26:31 2017] sdhci: Wake-up: 0x00000000 | Clock: 0x00000007
[Sun Jun 11 21:26:31 2017] sdhci: Timeout: 0x00000004 | Int stat: 0x00000000
[Sun Jun 11 21:26:31 2017] sdhci: Int enab: 0x02ff000b | Sig enab: 0x02ff000b
[Sun Jun 11 21:26:31 2017] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
[Sun Jun 11 21:26:31 2017] sdhci: Caps: 0x546ec881 | Caps_1: 0x80000807
[Sun Jun 11 21:26:31 2017] sdhci: Cmd: 0x0000123a | Max curr: 0x00000000
[Sun Jun 11 21:26:31 2017] sdhci: Host ctl2: 0x0000008d
[Sun Jun 11 21:26:31 2017] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x000000027034e200
[Sun Jun 11 21:26:31 2017] sdhci: ===========================================
[Sun Jun 11 21:26:31 2017] mmcblk0: error -110 sending stop command, original cmd response 0x0, card status 0x400900
[Sun Jun 11 21:26:31 2017] mmcblk0: error -110 transferring data, sector 42637704, nr 8, cmd response 0x0, card status 0x0

Any ideas what is going on? Things hang for a few seconds when this happens. Thanks.

Sandeep Rao

https://up-community.org/forum/general-discussion-up2/1898-up2-storage-getting-readonly-frequently

I think the issue is same as above.

Andy Carlson

I tried Ubuntu 17.04, with the same outcome. Guess I will wait for Ubilinux 4.

Andy Carlson

Is the plan to push the Up Squared kernel patches upstream so they will be included in the mainline kernel?

DCleri

We are investigating the issue and we will come back to you before the end of the week with an update.

Thanks for reporting the issue.

Note: naclosagc, for any question that is out off topic, please feel free to open a new one, so we could better manage the information and clarify each specific question on his own thread. thanks!