i.MX Processors中的主题 Re: EMMC flash drive error message

EMMC flash drive error message

davidzhou — Thu, 08 Mar 2018 17:05:57 GMT

Hi,

I have imx6ul and Linux 4.15

When I call tar command to unzip a large file (15MB zipped size, about 50MB unzipped size),

I got the following error:

EXT4-fs (mmcblk1p1): last error at time 4297: ext4_mb_generate_buddy:757

Is this a serious problem? how to resolve it?

Thank you,

David Zhou

Carlos_Musich — Fri, 09 Mar 2018 22:12:25 GMT

Hi David,

I haven´t seen a similar issue before.

If you do the same from a different memory (E.g. USB) do you see the same? You may try also with different SD card.

Carlos

davidzhou — Fri, 16 Mar 2018 13:11:11 GMT

Hi Carlos,

I did a test. Copying large files into emmc flash causes this error message.

Copying the same file into internal NAND flash is ok.

Copying the same file into a USB stick is ok, too.

Is that indicating emmc driver or hardware may have some issues?

Thank you,

David

Carlos_Musich — Fri, 16 Mar 2018 20:13:20 GMT

I would think the problem is the SD card. Did you try with different SD cards?

davidzhou — Thu, 02 Aug 2018 18:48:56 GMT

It was the incorrect timing configuration in the device tree file for the emmc.

David