Filesystem corruption, read-only filesystem, and eMMC problems

nattip

I have numerous 64G UP Squared boards that are currently running Ubuntu 18.04 with the UP kernel version 5.4.0 and the most recent (v6.1) UP bios. I have been consistently getting a corrupted filesystem that sometimes ends up read-only and often displays mmc issues in the kern.log file as shown below. This is happening in the middle of operation with no power loss issues.

kernel: [ 5710.200889] mmc0: mmc_select_hs400 failed, error -84
kernel: [ 5710.201463] mmc0: mmc_hs400_to_hs200 failed, error -110

mmcblk0: error -110 sending stop command, original cmd response 0x0, card status 0x400900
mmcblk0: error -110 transferring data, sector 22099648, nr 8, cmd response 0x0, card status 0x0

I have previously used the older 128G UP Squared boards for the same purposes as I am using them now and never ran into this issue.

Any ideas on what could be causing this across multiple boards?

camillus

Hi @nattip ,

Sorry to read this, can you tell how many units have this issue? Can you also send the output of uname -a and dmesglog to my email. (find on my profile)

jakobsturm

Hey, could you solve the issue? If so, what was the solution?
We are having the same problems with the 32GB Up squared boards.