SD-Card not accessible when SOM getting warm

Hi WayneWWW,

we applied all changes to the Nano but the error still persists.
When changing the test script to test only write processes we get following error after some time:

[  488.798065] mmcblk1: error -110 requesting status                            
[  489.378613] mmc1: tried to reset card, got error -110
[  489.384033] blk_update_request: I/O error, dev mmcblk1, sector 8193
[  489.390533] Buffer I/O error on dev mmcblk1p1, logical block 1, lost async page write
[  489.400480] mmcblk1: error -110 sending status command, retrying
[  489.407670] mmcblk1: error -110 sending status command, retrying
[  489.414557] mmcblk1: error -110 sending status command, aborting
[  489.420764] blk_update_request: I/O error, dev mmcblk1, sector 9650
[  489.427430] Buffer I/O error on dev mmcblk1p1, logical block 1458, lost async page write
[  489.438013] mmcblk1: error -110 sending status command, retrying
[  489.445124] mmcblk1: error -110 sending status command, retrying
[  489.452530] mmcblk1: error -110 sending status command, aborting
[  489.459170] blk_update_request: I/O error, dev mmcblk1, sector 13350
[  489.465950] Buffer I/O error on dev mmcblk1p1, logical block 5158, lost async page write
[  489.475997] mmcblk1: error -110 sending status command, retrying
[  489.482967] mmcblk1: error -110 sending status command, retrying
[  489.489558] mmcblk1: error -110 sending status command, aborting
[  489.496078] blk_update_request: I/O error, dev mmcblk1, sector 16384
[  489.502936] Buffer I/O error on dev mmcblk1p1, logical block 8192, lost async page write

And calling umount now leads to:

[ 1186.264797] mmcblk1: error -110 sending status command, retrying
[ 1186.271321] mmcblk1: error -110 sending status command, retrying
[ 1186.278199] mmcblk1: error -110 sending status command, aborting
[ 1186.499591] mmc1: tried to reset card, got error -2
[ 1186.504877] blk_update_request: I/O error, dev mmcblk1, sector 8985
[ 1186.511626] blk_update_request: I/O error, dev mmcblk1, sector 8986
[ 1186.518110] blk_update_request: I/O error, dev mmcblk1, sector 8987
[ 1186.524644] blk_update_request: I/O error, dev mmcblk1, sector 8988
[ 1186.531262] blk_update_request: I/O error, dev mmcblk1, sector 8989
[ 1186.537882] blk_update_request: I/O error, dev mmcblk1, sector 8990
[ 1186.544607] blk_update_request: I/O error, dev mmcblk1, sector 8991
[ 1186.551275] blk_update_request: I/O error, dev mmcblk1, sector 8992
[ 1186.557886] blk_update_request: I/O error, dev mmcblk1, sector 8993
[ 1186.564387] blk_update_request: I/O error, dev mmcblk1, sector 8994
[ 1186.573482] mmcblk1: error -110 sending status command, retrying
[ 1186.581017] mmcblk1: error -110 sending status command, retrying
[ 1186.588416] mmcblk1: error -110 sending status command, aborting
[ 1186.604261] mmcblk1: error -110 sending status command, retrying
[ 1186.610768] mmcblk1: error -110 sending status command, retrying
[ 1186.617396] mmcblk1: error -110 sending status command, aborting
[ 1186.629629] mmcblk1: error -110 sending status command, retrying
[ 1186.636213] mmcblk1: error -110 sending status command, retrying
[ 1186.642676] mmcblk1: error -110 sending status command, aborting
[ 1186.648819] FAT-fs (mmcblk1p1): FAT read failed (blocknr 793)

But the card is still visible at /dev/mmcblk1. I’m not sure but before the patches the card was not listed at /dev when the errors happened.

Is the patch from Jetson Nano SD card enters back to high speed mode instead of uhs mode after soft reboot - #4 by WayneWWW also applicable for Xavier NX?