MSM760 Storage Failure

Hi,

I am having a problem with my MSM760 controller. I were unable to rejoined my AP which was rebooted. The log says the following error:

Mar 22 02:06:52 err kernel end_request: I/O error, dev sda, sector 25135954

Mar 22 02:06:52 err kernel end_request: I/O error, dev sda, sector 25141412

Mar 22 02:06:52 err kernel end_request: I/O error, dev sda, sector 25135954

Mar 22 02:06:52 err kernel end_request: I/O error, dev sda, sector 25141412

Mar 22 02:06:52 err kernel end_request: I/O error, dev sda, sector 25135954 

and so on...

Any clue what cause the error and how can I fix it?

Regards