"__nand_correct_data: uncorrectable ECC error"

Hello,

I'm running Debian 9 on a Sheevaplug*. The whole system lives on a USB key drive, and I don't use the NAND at this point.

When running "fdisk -l" or "bklid", I get the following errors:

[ 2445.404412] __nand_correct_data: uncorrectable ECC error
[ 2445.409798] blk_update_request: I/O error, dev mtdblock0, sector 0
[ 2445.418725] __nand_correct_data: uncorrectable ECC error
[ 2445.424122] blk_update_request: I/O error, dev mtdblock0, sector 0
[ 2445.430329] Buffer I/O error on dev mtdblock0, logical block 0, async page read
[ 2445.440806] __nand_correct_data: uncorrectable ECC error
[ 2445.446188] blk_update_request: I/O error, dev mtdblock1, sector 0
[ 2445.454129] __nand_correct_data: uncorrectable ECC error
[ 2445.459494] blk_update_request: I/O error, dev mtdblock1, sector 0
[ 2445.465706] Buffer I/O error on dev mtdblock1, logical block 0, async page read
[ 2445.476088] __nand_correct_data: uncorrectable ECC error
[ 2445.481478] __nand_correct_data: uncorrectable ECC error
[ 2445.486846] blk_update_request: I/O error, dev mtdblock2, sector 0
[ 2445.495240] __nand_correct_data: uncorrectable ECC error
[ 2445.500613] __nand_correct_data: uncorrectable ECC error
[ 2445.505994] blk_update_request: I/O error, dev mtdblock2, sector 0
[ 2445.512202] Buffer I/O error on dev mtdblock2, logical block 0, async page read

I read elsewhere it could be a configuation issue rather than a physical problem.

Any idea what I could try and make this error go away (before possibly using the NAND one day)?

Thank you.

* Linux sheevaplug 4.9.0-12-marvell #1 Debian 4.9.210-1+deb9u1 (2020-06-07) armv5tel GNU/Linux

Winfried,

> When running "fdisk -l" or "bklid", I get the
> following errors:
>
> [ 2445.404412] __nand_correct_data: uncorrectable
> ECC error

The error is OK. Because you are running mainline Debian.

> * Linux sheevaplug 4.9.0-12-marvell #1 Debian
> 4.9.210-1+deb9u1 (2020-06-07) armv5tel GNU/Linux

It was not configured with mtdblock device in the kernel. So the kernel simply outputs these errors whenever you try to access the mtds as block device (fdisk and blkid do that).

3 alternatives:

1. If you like to install my kernel for the Sheevaplug:

https://forum.doozan.com/read.php?2,12096

Then that error will be gone.

2. Try to install mtdblock module in your system from mainline. This will take some research how to.

3. Just leave it be. This is not an error. When you use fdisk or blkid, yoy need to be more specific and not trying to probe mtdblock devices.

-bodhi
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Edited 1 time(s). Last edit at 06/30/2020 05:12AM by bodhi.

Thank you.