EMMC Error Check

Konzept · Apr 10th 2026

Hello,

is each EMMC memory checked before delivery?

I get the following errors when writing:

Code

Buffer I/O error on dev mmcblk2p5, logical block 48429, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48430, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48431, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48432, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48433, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48434, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48435, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48436, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48437, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 48438, lost async page write
blk_update_request: I/O error, dev mmcblk2, sector 3211624 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3213672 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3214696 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3218792 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3219816 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3228008 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3230056 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
blk_update_request: I/O error, dev mmcblk2, sector 3320672 op 0x1:(WRITE) flags 0x104000 phys_seg 128 prio class 0
buffer_io_error: 1014 callbacks suppressed
Buffer I/O error on dev mmcblk2p5, logical block 62828, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62829, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62830, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62831, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62832, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62833, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62834, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62835, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62836, lost async page write
Buffer I/O error on dev mmcblk2p5, logical block 62837, lost async page write

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fs-support_KM · Apr 10th 2026

Hello,

we are running basic tests in our production for each board before flashing of the bootloader. eMMC should also be tested here.

Could you provide the following information via our support E-Mail (support@fs-net.de), so we can look into the logs internally?

- Serial number of the board (six digit number on the sticker)

- Release you are currently using (e.g. fsimx8mp-Y2025.12)

- Complete bootlog and commands to reproduce the errors

Your F&S Support Team

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